Party wall awards: when your neighbour’s consent is not enough

A friendly conversation with your neighbour is a good start when planning a loft conversion or extension. But “we’re happy for you to go ahead” is not always enough to meet your legal responsibilities. Before building work starts, we help homeowners distinguish between informal agreement, valid written consent and a party wall award.

What does the Party Wall Act cover?

The Party Wall etc. Act 1996 applies to certain building works in England and Wales. Common examples include cutting into a shared wall to insert steel beams, raising or rebuilding a party wall, and building at a boundary.

Excavation can also trigger the Act, even where your extension does not touch your neighbour’s property. The rules depend on the distance from neighbouring buildings and the depth of the proposed excavation relative to their foundations. There are separate tests for excavation within three metres and six metres; proximity alone does not decide whether notice is required.

For a London loft conversion or rear extension, we recommend checking the structural proposals before setting a start date.

Informal agreement is not statutory consent

A conversation over the fence is not a substitute for the notice and consent process required by the Act. Where notice is required, it must contain the appropriate information and be served on the relevant adjoining owners.

That may involve more than the person living next door. In a converted building, freeholders and qualifying leaseholders may each have an interest that needs checking. One neighbour cannot necessarily consent on everyone else’s behalf.

Party structure notices generally require at least two months’ notice, while notices for qualifying excavation and building at the boundary generally require one month. Different notice types have different consequences, so we would not treat them as interchangeable.

When is a party wall award needed?

Valid written consent to properly notified works can mean that an award is unnecessary. An award is not automatically required for every project covered by the Act.

However, if an adjoining owner dissents from a party structure or excavation notice, or does not provide written consent within 14 days, the Act’s dispute-resolution procedure applies. Silence is not consent for these notices.

The owners can agree to appoint one impartial “agreed surveyor”, or each appoint their own surveyor. The appointed surveyor or surveyors resolve the dispute through a party wall award, setting out matters such as the authorised work, its timing and protective measures.

Boundary notices operate differently: lack of consent does not automatically create the same deemed dispute. It also does not give you permission to build a new wall astride the boundary.

Consent does not cover every later change

Written consent relates to the works notified. If the structural design changes, we check whether the original notice still covers the proposal or whether further notice is needed.

Consent also does not remove the Act’s protections. If a dispute subsequently arises about matters covered by the Act, including damage associated with the works, the statutory surveyor procedure may still be available.

We recommend considering a schedule of condition before work begins, even where neighbours consent. This records the visible condition of relevant neighbouring areas. It is not an award or a guarantee against disagreement, but it can provide valuable evidence.

Keep other permissions separate

Planning permission and building regulations approval do not replace party wall procedures. Equally, neighbour consent or an award does not grant planning permission, resolve ownership disputes or authorise trespass outside the Act’s provisions.

At Simplicity Designs, we coordinate architectural and structural proposals with party wall requirements so these issues are considered before contractors arrive.

If you are planning building work in Hackney or elsewhere in London, call us on 0203 026 2883 or send your details to info@simplicity-designs.co.uk. We can help you understand the next steps.