Party wall notices for extensions in Gwynedd and Anglesey

Gwynedd and Anglesey at a glance

Nation: Wales
Price region: Wales
Postcode areas: LL
Towns covered: 10 listed below, plus surrounding villages
Site visits: Free, no obligation

What a party wall notice involves

This service suits you if your two-storey extension is close to a neighbour's house, wall or boundary. You get a check of which notices your work needs, the notices prepared and served with the right drawings, a timetable that builds in the notice periods, and help with a surveyor if your neighbour dissents.

Across Gwynedd and Anglesey we cover Bangor (Gwynedd and Anglesey) (LL57), Holyhead (LL64), Caernarfon (LL54), Llangefni (LL60), Bethesda (LL57) and Pwllheli (LL51), plus the smaller places around them.

Fees

We confirm every fee in writing before the design stage starts; typical professional fees are on our prices page.

Rules in Wales

In Wales, the Party Wall etc. Act 1996 applies in the same way as in England. Notices are needed for a new wall on the line of junction, work to a party wall and excavation near a neighbour's foundations, with the same 1 month and 2 month periods. One agreed surveyor typically costs £1,300–£1,500 plus VAT.

Approval in Wales: Householder planning application: £585. Councils normally decide householder applications within 8 weeks.

Building regulations: Building regulations approval under the Welsh Approved Documents, which differ from England's in places (notably energy efficiency).

Getting the design right

Building the timing in

Notice periods add to the programme, and a dissent can add more while surveyors agree the terms. We serve notices once the design and foundations are known, usually while planning is being decided, so they run in parallel with other approvals.

Talking to neighbours first

A conversation before the notice arrives often makes the difference between consent and dissent. We explain the work, share the drawings and answer questions, so neighbours know what to expect and are more likely to agree.

How we work in Gwynedd and Anglesey

Start at your house
We come to your home in Gwynedd and Anglesey, measure up, check the ground floor walls and roof structure, and note anything near the boundaries.
Choose the approval route
Some designs fit permitted development, most need a householder application. We decide which applies in Wales before drawing in detail.
Technical design
We prepare the building regulations drawings, structural calculations and specification so the build price can be fixed.
Build and sign-off
Vetted teams working under S&K build the extension, and we arrange the building control completion certificate at the end.

Towns we cover in Gwynedd and Anglesey

Party wall notices for extensions in Gwynedd and Anglesey: questions

What happens if my neighbour does not respond to a party wall notice?

For a party structure notice or an excavation notice, a neighbour who does not respond within 14 days is treated as having dissented. Surveyors are then appointed to agree a party wall award, which sets out how the work will be done and records the condition of the neighbour's property. Either one agreed surveyor or one for each side can act.

Can my neighbour stop my extension with the Party Wall Act?

No. The Party Wall etc. Act 1996 sets out how work is done and how neighbours are protected, but it does not let them block lawful work that has planning approval or is permitted development. It can delay the start if notices are served late, which is why we serve them early.

Neighbouring areas

All extension services in Gwynedd and Anglesey · About party wall notices for extensions