Common Mistakes in Party Wall Agreements

(And how to avoid them)

A practical guide from Bristol Party Wall.

The Party Wall etc. Act 1996 gives a clear legal framework for building works near shared boundaries — but many homeowners still fall into the same avoidable traps. These mistakes can delay projects, increase costs, or cause unnecessary friction with neighbours.

Here are the most common pitfalls Bristol homeowners face, and how to avoid them.

Not serving a Party Wall Notice early enough

Many projects get delayed simply because notices were left too late. Your neighbour has 14 days to respond to a notice, and if they dissent, the surveyor process can take several weeks.

Avoid this by:

• Serving notices as soon as plans are ready
• Speaking with your neighbour informally before serving the notice
• Asking Bristol Party Wall to prepare and serve notices correctly on your behalf.

Giving incorrect or incomplete information in the notice

DIY notices downloaded from the internet often miss key details or use the wrong templates. This can make the notice invalid and force you to start again.

Common errors include:

• Incorrect addresses
• Missing drawings
• Wrong type of notice (e.g., section 2 instead of section 6)
• No start date or unclear works description

Avoid this by:

• Using a qualified Party Wall Surveyor to prepare and serve the notice
• Checking that all drawings and details are accurate.

Relying on verbal consent from your neighbour

A friendly chat is helpful, but verbal consent is not legally valid under the Act. You must have written consent or an Award in place before works begin.

Avoid this by:

• Still serving a formal notice even if relations are good
• Getting written consent where appropriate
• If a neighbour is hesitant, allowing Bristol Party Wall to handle communication.

Assuming your neighbour can block your works

Many homeowners panic if a neighbour dissents, thinking it will stop the project. It won’t.

A dissent simply triggers the surveyor process; it does not give neighbours a veto.

Avoid this by:

• Understanding that dissent is normal
• Appointing Bristol Party Wall promptly to keep the process moving
• Considering using an Agreed Surveyor to reduce cost and time

Failing to carry out a Schedule of Condition

Skipping a Schedule of Condition is one of the most expensive mistakes people make. Without it, you have no clear record of your neighbour’s property before works begin, which can cause disputes later.

Avoid this by:

• Always commissioning a Schedule of Condition before works start
• Using a surveyor experienced in photographic and written inspections
• Ensuring both sides receive a copy for transparency

Starting work before the Party Wall Award is completed

Beginning construction without an Award is a breach of the Act.
This can lead to injunctions, work stoppages and higher legal costs.

Avoid this by:

• Waiting until the Award is formally served
• Making sure your contractor understands the legal requirements
• Scheduling your builder’s start date realistically to align with the process

Not budgeting for surveyor costs

If your neighbour appoints their own surveyor, the Building Owner usually pays their fees. Homeowners often don’t realise this.

Avoid this by:

• Budgeting for the full Party Wall process at the start of your project
• Considering the Agreed Surveyor option for cost efficiency
• Asking Bristol Party Wall for transparent fee guidance

Not Keeping Communication Friendly and Clear

Many disputes arise simply because neighbours feel left out or worried about potential damage.

Avoid this by:

• Talking to neighbours informally before serving notices
• Sharing drawings and timelines clearly
• Letting Bristol Party Wall take over communication if things get tense

Assuming the Award Covers Everything

Some homeowners think the Award is a one-time document. In reality, surveyors may issue Further Awards if circumstances change.

Avoid this by:

• Staying in touch with the surveyor during the works
• Reporting any issues promptly
• Keeping records of all communication and site activity

Choosing an inexperienced or unqualified surveyor

Incorrect notices, slow communication, or lack of understanding of the Act can create delays and disputes.

Avoid this by:

• Using specialist Party Wall surveyors familiar with Bristol properties
• Checking experience with extensions, loft conversions, excavations and basements
• Choosing surveyors who offer full-service support