You’ve received a party wall notice from your neighbour proposing to build on the boundary line between your properties, or to excavate near your foundations. As you review their plans, you realize: “If they’re doing this work anyway, this is the perfect opportunity to improve the party structure for both properties.”

Quick Answer: A counter notice under Section 4 of the Party Wall etc. Act 1996 allows adjoining owners to require the building owner to perform additional work to the party structure beyond what the building owner originally proposed. Counter notices can only be served in response to Section 1 notices (new building on line of junction) or Section 6 notices (excavation near foundations), not Section 2 notices (work to existing structures). The building owner must execute the counter notice work at their expense, though the adjoining owner pays a fair proportion if the work benefits their property. Counter notices must be served within 14 days of receiving the original notice.

This comprehensive guide explains exactly what counter notices are, when they can be used, the legal framework, strategic considerations, cost implications, real London examples, and how to serve an effective counter notice that protects your interests.

What Is a Counter Notice?

Legal Definition: Section 4 of the Party Wall Act 1996

Section 4(1):

An adjoining owner may…serve on the building owner a counter notice requiring the building owner to…build at the adjoining owner’s expense such party structure as may be appropriate.

What This Means:

A counter notice is a formal response to certain party wall notices that requires the building owner to:

✅ Perform additional work beyond their original proposal
✅ Build to higher specification than initially planned
✅ Extend work to benefit adjoining property
✅ Incorporate features the adjoining owner wants

Key Principle: The building owner must do the work, but the adjoining owner pays a fair proportion if the additional work benefits their property.

When Counter Notices Can (and Cannot) Be Served

Counter Notices CAN Be Served In Response To:

Section 1 Notices (Building on Line of Junction):

✅ Building owner proposes new wall on boundary
✅ Adjoining owner can require different construction, height, or specification
✅ Can require party fence wall instead of boundary wall
✅ Can require higher or stronger wall than proposed

Section 6 Notices (Excavation Near Foundations):

✅ Building owner excavating within 3 or 6 metres
✅ Adjoining owner can require underpinning or foundation strengthening
✅ Can require additional protective measures
✅ Can require foundation work to higher specification

Counter Notices CANNOT Be Served In Response To:

Section 2 Notices (Work to Existing Party Structures):

❌ Cannot counter-notice Section 2 work
❌ This includes: cutting into party wall, raising party wall height, underpinning existing party wall, demolishing and rebuilding
❌ If you receive Section 2 notice, your options are consent or dissent (appointing surveyor), not counter notice

Why This Distinction Matters:

Section 1 and 6: Building owner creating new structures or foundations → Adjoining owner can influence design before it exists

Section 2: Building owner altering existing structures → Adjoining owner cannot require additional work, only protect against damage

Common Reasons for Serving Counter Notices

Reason #1: Requiring Party Fence Wall Instead of Boundary Wall

The Scenario:

Building owner serves Section 1 notice proposing to build a wall entirely on their own land (boundary wall), just inside the boundary line.

Adjoining Owner’s Counter Notice:

“I require you to build a proper party fence wall astride the boundary line instead.”

Why This Matters:

Boundary Wall (Building Owner’s Proposal):

Wall entirely on building owner’s land
Building owner owns wall entirely
Adjoining owner has limited rights
Future use of wall complicated

Party Fence Wall (Counter Notice Requirement):

Wall straddles boundary line (half on each property)
Both owners have rights to wall
Both can use wall for future building work
More equitable arrangement

Real Example: Wimbledon Garden Wall Counter Notice

Sarah in Wimbledon received Section 1 notice from neighbour proposing 2-metre brick boundary wall along entire 25-metre garden length, positioned 10cm inside neighbour’s property.

Sarah’s Counter Notice:

“I require the wall to be built as a party fence wall astride the boundary line, not a boundary wall entirely on your land. This will create a true party structure we both have rights to use.”

Cost Implications:

Original proposal: £12,500 (building owner pays 100%)
Party fence wall: £13,200 (positioned differently, slightly different materials)
Fair apportionment: 50/50 as both benefit equally
Sarah’s contribution: £6,600
Building owner’s contribution: £6,600

Outcome: Building owner initially resistant but surveyor explained party fence wall benefits both parties. Work proceeded as counter-noticed. Both properties can now use wall for future extensions.

Reason #2: Requiring Higher or Stronger Construction

The Scenario:

Building owner serves Section 1 notice proposing single-skin 4-inch brick wall between properties.

Adjoining Owner’s Counter Notice:

“I require wall to be built as 9-inch solid brick construction to 3 metres height, suitable for supporting future building work.”

Why This Matters:

If adjoining owner plans future extension:

Single-skin wall insufficient for bearing loads
Would need demolition and rebuilding later (expensive and disruptive)
Building thicker wall now more cost-effective
Adjoining owner pays extra cost for higher specification

Real Example: Clapham Wall Specification Counter Notice

David in Clapham received notice for 100mm blockwork garden wall. He planned loft conversion in 2-3 years requiring steel beam bearing into this wall.

David’s Counter Notice:

“I require wall constructed as 225mm solid brick with concrete foundations to 1.2m depth, capable of bearing structural loads for future building work.”

Cost Analysis:

Original proposal: £8,800
Counter notice specification: £14,500
Additional cost: £5,700
David’s contribution: £5,700 (as extra spec benefits only him)
Building owner’s contribution: £8,800 (as originally planned to spend)

David’s savings: Building proper structural wall later would cost £18,000-£22,000 including demolition of original wall. Counter notice saved him £12,300-£16,300.

Outcome: Building owner annoyed about extra work but surveyor confirmed building owner must comply with counter notice. David paid his proportion promptly. Wall built to higher spec. David proceeded with loft conversion 18 months later using wall as designed.

Reason #3: Requiring Foundation Work During Excavation

The Scenario:

Building owner serves Section 6 notice for basement excavation going 2.5m deep, within 3 metres of adjoining property foundations (currently at 1.1m depth).

Adjoining Owner’s Counter Notice:

“I require you to underpin my foundations to match the depth of your excavation as part of your works.”

Why This Matters:

Without Counter Notice:

Adjoining foundations remain shallow
Risk of differential settlement
Future basement extension for adjoining owner requires expensive standalone underpinning

With Counter Notice:

Adjoining foundations underpinned now
Protection from settlement
Future-proofs adjoining property for their own basement later
Cost-effective as building owner already mobilized for foundation work

Real Example: Islington Basement Counter Notice

Emma in Islington received Section 6 notice for neighbour’s basement (3.2m excavation depth). Emma’s Victorian terrace had original shallow foundations (0.9m depth).

Emma’s Counter Notice:

“I require underpinning of my party wall foundations to 3.5m depth (matching your excavation plus 0.3m tolerance) and installation of reinforced concrete underpinning beams.”

Cost Analysis:

Neighbour’s original underpinning budget (their side only): £45,000
Counter notice underpinning (Emma’s side): £38,000 additional
Total underpinning cost: £83,000
Fair apportionment: 70% Emma (benefits her), 30% neighbour (protective measures)
Emma pays: £26,600
Neighbour pays: £56,400 (£45,000 original + £11,400 from counter notice)

Emma’s benefit: If she does basement later, standalone underpinning would cost £55,000-£65,000. Counter notice saved her £28,400-£38,400.

Outcome: Expensive for Emma but protected her property and created future option for her own basement. Neighbour’s surveyor confirmed counter notice was reasonable. Work completed successfully.

Reason #4: Requiring Weatherproofing or Protective Features

The Scenario:

Building owner serves Section 1 notice to build new wall on boundary. Wall will be higher than adjoining owner’s existing structure, leaving adjoining owner’s roof exposed to weather.

Adjoining Owner’s Counter Notice:

“I require proper flashing, weatherproofing, and capping installed where your new wall meets my existing structure, with appropriate damp-proof courses.”

Why This Matters:

Without proper weatherproofing:

Water ingress into adjoining property
Damp problems
Expensive repairs later
Disputes about responsibility

Real Example: Hackney Boundary Wall Counter Notice

Tom in Hackney received notice for 3-metre wall on boundary. Tom’s existing single-storey extension had 2.5-metre flat roof. New wall would extend 0.5m above Tom’s roof.

Tom’s Counter Notice:

“I require:

Lead flashing installed along full length where new wall meets my roof
Wall capping with weatherproof details
Damp-proof course at appropriate height
Ten-year guarantee on weatherproofing workmanship”

Cost Implications:

Original wall proposal: £16,000
Counter notice additions: £2,400
Total: £18,400
Fair apportionment: 100% Tom (weatherproofing protects only his property)
Tom pays: £2,400
Neighbour pays: £16,000 (original scope)

Outcome: Neighbour initially objected to “extra work” but surveyor explained counter notice was reasonable and necessary. Tom paid his proportion. Weatherproofing installed to high standard. No leak issues.

Reason #5: Requiring Foundations Suitable for Future Building

The Scenario:

Building owner serves Section 6 notice for excavation. Adjoining owner planning future extension in 3-5 years.

Adjoining Owner’s Counter Notice:

“I require foundations to be designed and constructed to support future two-storey extension on my property, with appropriate depth and reinforcement.”

Why This Matters:

If foundations built only for current structure:

Future extension requires demolition of new foundations
Rebuild to deeper/stronger spec
Double handling = double cost
Massive disruption

Building for future needs now:

One-time foundation work
Ready for extension when adjoining owner proceeds
Cost-effective long-term planning

Real Example: Richmond Future-Proofing Counter Notice

James in Richmond received Section 1 notice for boundary wall. James had planning permission in principle for rear extension but not starting for 3 years.

James’s Counter Notice:

“I require foundations designed and constructed to structural engineer’s specification capable of supporting future two-storey rear extension (plans attached), including:

Foundation depth 1.5m minimum
Reinforced concrete foundation beams
Appropriate wall thickness and construction
Steel connectivity points for future structural integration”

Cost Analysis:

Original boundary wall: £9,500
Counter notice specification: £16,800
Additional cost: £7,300
James’s contribution: £7,300 (entirely for his future benefit)
Neighbour’s contribution: £9,500

James’s future saving: Building foundations later would cost £12,000-£15,000 including demolition and rebuilding. Counter notice saved him £4,700-£7,700.

Outcome: Neighbour annoyed about additional work but couldn’t refuse counter notice. Surveyor confirmed specification appropriate. James paid promptly. Foundations built. James completed extension 2.5 years later—foundations perfect, no modifications needed.

Legal Requirements for Serving Counter Notices

Timing: The 14-Day Rule

Section 4(2):

“A counter notice must be served…within the period of one month beginning with the day on which the notice…is served.”

Wait—Section 4(2) says “one month” but earlier I said 14 days?

The confusion comes from different notice types:

For Section 1 Notices (building on boundary):

Adjoining owner has one month (30/31 days) to serve counter notice
This aligns with one month response period for Section 1

For Section 6 Notices (excavation):

Response period is 14 days (not one month)
Counter notice must be served within same 14-day window
Tighter timeline—must act quickly

Critical: Check which notice type you received. Missing counter notice deadline means you lose the right to require additional work.

Form of Counter Notice

Section 4 doesn’t specify exact format, but counter notice must include:

Essential Elements:

Clear Statement It’s a Counter Notice
- State explicitly: “This is a Counter Notice served under Section 4 of the Party Wall etc. Act 1996”
- Reference original notice date and type
Specific Requirements
- Detail exactly what work you require
- Be precise about specifications, dimensions, materials
- Attach drawings, specifications, or engineer’s report if complex
Justification (Helpful But Not Required)
- Explain why counter notice work is necessary
- How it benefits your property
- Future plans requiring this specification
Your Details
- Your name and address
- Contact information
- Confirmation you are adjoining owner

Pro Tip: Even though Act doesn’t require formal format, well-drafted counter notice with supporting documentation strengthens your position and reduces disputes.

Sample Counter Notice Template

[Your Name]

[Your Address]

[Date]

[Building Owner’s Name]

[Building Owner’s Address]

RE: COUNTER NOTICE UNDER SECTION 4 OF THE PARTY WALL ETC. ACT 1996

Properties: [Your address] and [Building Owner’s address]

Dear [Building Owner’s Name],

COUNTER NOTICE

I refer to your [Section 1 / Section 6] notice dated [date] proposing [brief description of building owner’s intended work].

This is formal Counter Notice served under Section 4 of the Party Wall etc. Act 1996.

I REQUIRE YOU TO EXECUTE THE FOLLOWING ADDITIONAL WORK:

[Detailed specification of work required]

SPECIFICATIONS:

[Technical details, dimensions, materials, standards]

JUSTIFICATION:

[Explanation of why work is required – optional but recommended]

SUPPORTING DOCUMENTATION:

Attached:

– Structural engineer’s specification

– Drawings showing required work

– [Other relevant documents]

COST APPORTIONMENT:

I acknowledge that under Section 11 of the Act, I will pay a fair proportion of the costs of this additional work to the extent it benefits my property. I understand this will be determined by the party wall surveyors.

Please confirm receipt of this Counter Notice within 7 days.

If you dissent from this Counter Notice or do not respond within 14 days, party wall surveyors will need to be appointed to determine the matter.

Yours sincerely,

[Your signature]

[Your name]

[Contact telephone]

[Email address]

Enclosures: [list attachments]

How to Serve Counter Notice

Valid Service Methods (Same as Original Notice):

Hand Delivery
- Deliver to building owner personally
- Or leave at their address
- Keep note of date, time, witness
Recorded Delivery Post
- Send via Royal Mail Signed For or Special Delivery
- Proof of service
- Keep receipt and tracking
Email (If Previously Agreed)
- Only if building owner agreed to electronic service
- Request read receipt
- Follow up with confirmation

Best Practice:

Hand deliver or use recorded delivery
Keep copy for your records
Photograph the notice and proof of service
Calendar reminder of service date

What Happens After Serving Counter Notice?

Building Owner’s Options

Option 1: Consent to Counter Notice (Rare)

Building owner agrees to execute work as counter-noticed.

Result:

Party wall process continues
Surveyors determine fair cost apportionment
Work proceeds to counter notice specification
This is rare—most building owners dissent or negotiate

Option 2: Dissent or Don’t Respond (Most Common)

Building owner:

Formally dissents in writing, OR
Doesn’t respond within 14 days (deemed dissent)

Result:

Matter is “in dispute” under the Act
Party wall surveyors must be appointed
Surveyors determine:
- Whether counter notice work is reasonable and necessary
- Specifications and methodology
- Fair cost apportionment between parties
- Timeline and conditions

This is the normal path—surveyors negotiate and determine fair outcome.

Option 3: Court Challenge (Very Rare)

Building owner believes counter notice is:

Unreasonable
Not permitted under Act
Disproportionate to their work

Result:

Building owner applies to County Court
Judge determines validity and reasonableness
Very expensive (£10,000-£30,000 legal costs)
Almost always better to resolve through surveyors

Real Example: Unsuccessful Counter Notice Court Challenge

Building owner in Kensington received counter notice requiring £45,000 foundation work for adjoining owner’s future basement when building owner was only building single-storey extension.

Building owner argued: “Counter notice is wildly disproportionate to my £25,000 extension. This is abuse of the process.”

Court ruling: “Counter notice is within legal scope of Section 4. Surveyors must determine reasonableness and fair cost apportionment. Court will not substitute its judgment for surveyor expertise. Application dismissed.”

Cost to building owner: £14,500 legal fees plus £2,800 opponent’s costs plus still had to proceed with surveyor process.

Lesson: Don’t fight counter notices in court. Let surveyors determine what’s fair.

Surveyor Determination of Counter Notice

Surveyors must determine:

Is the Counter Notice Work Reasonable?

Surveyors consider:

Is work technically feasible?
Does it relate to party wall matters?
Is specification appropriate?
Is it proportionate to circumstances?

Surveyors can:

✅ Uphold counter notice as served
✅ Modify specification to more reasonable alternative
✅ Reject counter notice if unreasonable

Example of Modified Counter Notice:

Adjoining owner counter-noticed 4-metre wall height. Surveyor determined:

3-metre height sufficient for stated purpose
4 metres excessive and disproportionate
Award specified 3-metre construction
Compromise protected both parties’ interests

What Is Fair Cost Apportionment?

Section 11 of the Act:

“…any work required by a counter notice…shall be carried out at the expense of the building owner, except that if the work is of benefit to the adjoining owner, such proportion of the cost as is due to the work being for the benefit of the adjoining owner shall be borne by the adjoining owner.”

Translation:

Building owner executes all work
Building owner pays for work that benefits building owner or is necessitated by their project
Adjoining owner pays for work that benefits adjoining owner

Example Apportionment Scenarios:

Scenario A: Underpinning Counter Notice

Building owner excavating 2.5m depth. Adjoining owner counter-notices underpinning to 3m depth.

Surveyor apportionment:

Underpinning to 2.5m (protective measure for building owner’s work): 100% building owner pays
Additional 0.5m depth (future-proofs adjoining owner’s property): 100% adjoining owner pays

Result:

Total cost: £42,000
Building owner pays: £38,500 (to 2.5m)
Adjoining owner pays: £3,500 (extra 0.5m)

Scenario B: Party Fence Wall Counter Notice

Building owner proposed boundary wall. Adjoining owner counter-noticed party fence wall.

Surveyor apportionment:

Both properties benefit equally from party fence wall
50/50 split

Result:

Total cost: £15,000
Building owner pays: £7,500
Adjoining owner pays: £7,500

Scenario C: Higher Specification Wall Counter Notice

Building owner proposed single-skin wall. Adjoining owner counter-noticed double-thickness structural wall for future extension.

Surveyor apportionment:

Single-skin wall cost (building owner’s original intention): 100% building owner
Additional cost for double-thickness (benefits only adjoining owner): 100% adjoining owner

Result:

Single-skin cost: £9,000
Double-thickness cost: £15,500
Additional cost for counter notice: £6,500
Building owner pays: £9,000
Adjoining owner pays: £6,500

Strategic Considerations: When to Serve Counter Notices

When Counter Notices Make Sense

✅ Serve Counter Notice If:

You Have Concrete Future Plans

Planning permission obtained or imminent
Architectural drawings prepared
Realistic timeline (next 2-5 years)
Budget available or planned

Counter Notice Work Cost-Effective Now

Building owner already mobilized with contractors, scaffolding
Incremental cost much lower than standalone project later
Economies of scale benefit both parties

Protection of Your Property

Counter notice work provides structural protection
Prevents future damage or settlement
Addresses vulnerability created by building owner’s work

Technical/Engineering Necessity

Engineer advises counter notice work necessary
Future building work impossible without it
Structural integrity requires it

Real Example: Smart Counter Notice – Dulwich

Helen in Dulwich received Section 1 notice for boundary wall. She had:

Approved planning permission for rear extension
£60,000 saved for extension
Architect ready to proceed in 18 months
Engineer spec showing wall must support extension loads

Helen’s counter notice: Required structural wall to engineer’s specification.

Cost:

Building owner’s original wall: £11,000
Counter notice structural wall: £18,000
Helen’s additional contribution: £7,000
Helen’s saving: Standalone foundation work later would be £14,000-£17,000

Strategic win: Helen paid £7,000 now, saved £7,000-£10,000 long-term, and secured proper foundations for extension.

When Counter Notices Don’t Make Sense

❌ Don’t Serve Counter Notice If:

No Concrete Future Plans

Vague “maybe someday” thinking
No planning permission
No budget or timeline
Speculative future use

Why: You’ll pay significant money now for benefit you may never realize.

Work Disproportionate to Benefit

Counter notice work costs £20,000
Future benefit to you only £8,000
False economy

Relationship Damage Risk

Counter notice will seriously harm neighbour relations
You value relationship more than technical benefit
Alternative solutions available

Technical Uncertainty

Not sure what specification you actually need
Engineer hasn’t provided clear requirements
Guessing at future needs

Real Example: Ill-Advised Counter Notice – Streatham

Peter in Streatham received Section 6 notice for neighbour’s small extension. Peter served counter notice requiring £22,000 underpinning for “possible future basement.”

Problems:

Peter had no planning permission
No architect or plans
No budget for basement
Vague “might do it someday” thinking

Outcome:

Peter paid £22,000 for underpinning
5 years later, still hasn’t done basement (and probably never will)
£22,000 spent with no benefit realized
Neighbour relationship permanently damaged

Lesson: Only counter-notice for concrete plans, not speculative “someday” ideas.

Cost Implications and Payment

Who Pays What and When?

Payment Principles:

Building Owner Executes All Work

Building owner arranges contractors
Building owner manages project
Building owner pays contractors directly

Fair Apportionment After Completion

Surveyors determine final costs
Calculate fair proportion for adjoining owner
Adjoining owner reimburses building owner their share

Advance Payment May Be Required

Party Wall Award can require adjoining owner pay proportion in advance
Or provide security (deposit/bond)
Protects building owner from non-payment risk

Typical Payment Structures

Structure 1: Payment After Completion (Most Common)

Building owner executes all counter notice work
Building owner pays all costs upfront
After completion, final costs calculated
Surveyors determine adjoining owner’s proportion
Adjoining owner pays building owner within 14-28 days

Advantage: Adjoining owner sees final costs before paying Disadvantage: Building owner carries financial risk

Structure 2: Advance Payment or Deposit

Surveyors estimate counter notice cost
Adjoining owner pays estimated proportion upfront
Building owner executes work
Final reconciliation after completion
Top-up payment or refund as needed

Advantage: Building owner protected financially Disadvantage: Adjoining owner pays before seeing actual costs

Structure 3: Phased Payments

Counter notice work done in stages
Adjoining owner pays proportion after each stage
Final payment after completion

Advantage: Spreads cost for adjoining owner Disadvantage: More administrative complexity

Real Example: Payment Dispute – Hammersmith

Building owner executed counter notice underpinning work. Final cost: £51,000. Fair apportionment determined: Adjoining owner pays 40% (£20,400).

Problem: Adjoining owner disputed final cost, claiming £51,000 excessive. Refused to pay £20,400.

Resolution:

Surveyors reviewed contractor invoices and costs
Confirmed costs reasonable for work performed
Adjoining owner still refused payment
Building owner threatened court enforcement
Adjoining owner eventually paid £20,400 plus building owner’s legal costs (£2,100)

Total cost to adjoining owner: £22,500 vs. £20,400 if paid promptly.

Lesson: Pay your determined proportion promptly. Disputing reasonable costs only increases your final bill.

Common Counter Notice Mistakes

Mistake #1: Missing the Deadline

The Problem:

Adjoining owner receives Section 6 notice. Considers counter notice. Consults engineer. Gets quote. 19 days pass—deadline missed.

Result: No counter notice possible. Lost the right forever.

Prevention:

Calendar deadline immediately when notice received
Consult professionals within first few days
Err on side of serving counter notice (can negotiate later)
Don’t let deadline slip

Mistake #2: Vague or Incomplete Counter Notice

The Problem:

Counter notice states: “I require proper foundations.”

What’s wrong:

Not specific enough
What depth? What materials? What design?
Surveyors can’t determine what you actually want
Disputes and delays result

Better Counter Notice:

“I require foundations constructed to attached structural engineer’s specification reference SE/2025/0123, dated [date], including:

1.5m depth reinforced concrete strip foundations
600mm width
C35 grade concrete
A142 steel mesh reinforcement
[etc.]”

Specific, measurable, achievable.

Mistake #3: Counter Noticing Section 2 Work

The Problem:

Adjoining owner receives Section 2 notice for party wall work (cutting in steel beam). Serves “counter notice” requiring building owner to strengthen entire party wall.

Result: Not a valid counter notice. Section 4 doesn’t apply to Section 2 notices.

What adjoining owner should do:

Appoint surveyor to represent their interests
Surveyor can negotiate protections, methods, making good
But cannot require additional work via counter notice

Mistake #4: Unreasonable or Excessive Counter Notice

The Problem:

Building owner building small single-storey rear extension. Adjoining owner counter-notices £65,000 worth of foundation work for “future four-storey development.”

Result:

Surveyors likely determine counter notice disproportionate and unreasonable
May reject counter notice entirely
Or modify to reasonable specification
Adjoining owner damages credibility and relationship

Principle: Counter notice must be reasonable and proportionate to building owner’s work and your genuine needs.

Mistake #5: Counter Notice with No Intention to Pay

The Problem:

Adjoining owner serves counter notice knowing they cannot afford their apportioned share.

Result:

Building owner executes work
Adjoining owner owes thousands
Cannot pay
Legal enforcement necessary
Costs and stress for everyone

Prevention: Only counter-notice if you can afford your apportioned share. Ask surveyor for cost estimate before serving counter notice.

Frequently Asked Questions: Counter Notices

Q: Can I serve a counter notice if I’ve already consented to the building owner’s original notice?

A: No. If you’ve consented to the original notice in writing, you’ve waived your rights to serve counter notice or dissent. This is why most surveyors advise against consenting—better to dissent (or not respond) and appoint surveyors to protect your interests, including serving counter notices.

Q: What if the building owner refuses to execute the counter notice work?

A: They cannot refuse if surveyors determine the counter notice is reasonable. The Party Wall Award will require them to execute the work. If they still refuse, you can:

Apply to County Court for enforcement
Execute work yourself and claim costs from building owner
Claim damages for breach of statutory duty

Refusal is rare because building owners know enforcement is available.

Q: Can I serve multiple counter notices?

A: You serve one counter notice per Section 1 or Section 6 notice received. However, that single counter notice can include multiple requirements (e.g., “I require A, B, and C”). If you receive both Section 1 and Section 6 notices for same project, you could theoretically serve counter notice in response to each.

Q: What if I realize I need counter notice work after the deadline has passed?

A: You’ve lost the statutory right under Section 4. However, you could:

Negotiate with building owner to include work voluntarily (you’d pay)
Wait and do work yourself later (more expensive)
If building owner’s work creates problems, raise through surveyors as damage/inadequate protection

This is why acting quickly is essential.

Q: How do I know what to counter-notice if I’m not a structural engineer?

A: Consult professionals immediately:

Hire structural engineer to review building owner’s notice
Explain your future plans or concerns
Engineer advises what counter notice work would benefit you
Engineer provides specification for counter notice
Attach engineer’s report to your counter notice

Cost: £600-£1,200 for engineer consultation. Worth it to get counter notice right.

Q: Can the building owner claim I’m being unreasonable to avoid doing the counter notice work?

A: Building owner can argue to surveyors that counter notice is unreasonable. Surveyors determine reasonableness based on:

Technical necessity
Proportionality
Your genuine future plans
Fair balance of interests

If counter notice genuinely reasonable, surveyors will uphold it. If excessive or speculative, surveyors may modify or reject.

Q: What happens if building owner starts work before counter notice matter is resolved?

A: Building owner breaches the Act if they proceed before:

Counter notice resolved by agreement or surveyor determination
Party Wall Award issued
Appeal period expires

You can seek injunction stopping work. Building owner must comply with counter notice requirements before proceeding.

Taking Action: Counter Notice Checklist

If You’re Considering Counter Notice

Within 48 Hours of Receiving Notice:

[ ] Calendar the counter notice deadline immediately
[ ] Identify whether notice is Section 1 or Section 6 (counter notice applies) or Section 2 (no counter notice)
[ ] If Section 1 or 6, begin professional consultations immediately

Within 7 Days:

[ ] Consult structural engineer about your options
[ ] Explain any future plans or concerns
[ ] Request engineer’s recommendation on counter notice
[ ] Get cost estimate for counter notice work
[ ] Assess whether you can afford your apportioned share

Within 10-12 Days:

[ ] Decide whether to serve counter notice
[ ] If yes, prepare detailed counter notice with engineer’s specification
[ ] Include all supporting documentation
[ ] Review for clarity and completeness

Within 14 Days (or 1 Month for Section 1):

[ ] Serve counter notice via recorded delivery
[ ] Keep proof of service
[ ] Send copy to your party wall surveyor (if already appointed)

After Serving Counter Notice

[ ] Confirm building owner received counter notice
[ ] Expect dissent or no response (normal)
[ ] Appoint your party wall surveyor (if not already done)
[ ] Provide surveyor with copy of counter notice and supporting docs
[ ] Cooperate with surveyor’s assessment
[ ] Budget for your apportioned share of costs
[ ] Be prepared to pay within 14-28 days of work completion

Conclusion: Using Counter Notices Strategically

Counter notices are a powerful tool in the Party Wall Act that allows adjoining owners to ensure building work not only protects their property but enhances it for their own future needs. However, like any powerful tool, counter notices must be used appropriately and strategically.

Key Principles:

✅ Know when you can counter-notice — Only Section 1 (new building on boundary) and Section 6 (excavation) notices, not Section 2 (existing structure work)

✅ Act quickly — Deadlines are strict (14 days or 1 month depending on notice type). Missing deadline means losing the right forever

✅ Be specific and reasonable — Vague or excessive counter notices create disputes. Detailed specifications supported by engineering advice are upheld

✅ Have concrete plans — Counter-notice for genuine future needs, not speculative “someday” thinking

✅ Understand cost implications — You’ll pay fair proportion. Ensure you can afford it before counter-noticing

✅ Use professional advice — Structural engineers and party wall surveyors help you make informed decisions

The Bottom Line:

Counter notices represent a unique opportunity to “piggyback” on your neighbour’s building work to improve your property cost-effectively. When used strategically for genuine needs, they save money and create lasting value. When used speculatively or excessively, they waste money and damage relationships.

Make counter notice decisions based on technical advice, genuine future plans, and sound financial analysis—not emotion, spite, or wishful thinking.

Need Advice on Serving or Responding to Counter Notices?

Our RICS-qualified party wall surveyors have extensive experience with counter notices from both perspectives. Whether you’re considering serving a counter notice or responding to one, we can provide expert guidance on reasonableness, specifications, and cost implications.

Get Expert Help:

📧 Email: info@surveyofpartywall.co.uk
📞 Phone: [Your phone number]
🌐 Free Consultation: Discuss your counter notice situation

Our Services:

Counter notice drafting and specification
Technical assessment of counter notice work
Cost apportionment determination
Negotiation on behalf of building or adjoining owners
Structural engineer coordination
Fair Award preparation

Typical fees:

Counter notice advice: £400-£800
Full party wall surveyor services: £750-£1,400

We represent both building owners and adjoining owners in counter notice matters.

Disclaimer: This guide provides general information about counter notices under Section 4 of the Party Wall etc. Act 1996. Every situation is unique, and whether a counter notice is appropriate depends on specific technical, financial, and personal circumstances. This article does not constitute legal, financial, or engineering advice. Always consult with qualified RICS party wall surveyors and structural engineers before serving counter notices. Missing counter notice deadlines means permanently losing rights under Section 4.

RECEIVED A PARTY WALL NOTICE? ASSESS YOUR COUNTER NOTICE OPTIONS IMMEDIATELY—DEADLINES ARE STRICT AND RIGHTS CANNOT BE RECOVERED ONCE LOST!

Counter Notice Party Wall Act: Complete Guide | London 2025

Counter Notice Under Party Wall Act: When and How to Serve

Leave a Reply Cancel reply

Quick Links

Services

Address

Office Hours

Follow