Covering Bangor, Gwynedd and Anglesey
We work in Bangor, Gwynedd and Anglesey (LL57) and the places around it, including Llangefni, Caernarfon and Colwyn Bay.
Homes in Gwynedd and Anglesey
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What is a knock down and rebuild?
We assess whether rebuilding is better value than extending and renovating, prepare the planning application for the replacement dwelling, manage the demolition notice and asbestos survey, then build the new home. The process runs much like a new build once the old house is cleared.
- Demolition and site clearance
- New foundations, structure and full fit-out
- Reconnection of services and landscaping
What will a knock down and rebuild cost?
What knock down and rebuild typically cost. These are guide ranges; the written quote for your house replaces them.
| Knock down and rebuild | Guide price |
|---|---|
| Demolition and site clearance (total) | £15,000 to £35,000 |
| Rebuild, standard specification (per m²) | £2,100 to £2,600 per m² |
| Rebuild, good specification (per m²) | £2,600 to £3,100 per m² |
| Rebuild, high specification (per m²) | £3,100 to £3,700 per m² |
Planning and building rules in Bangor, Gwynedd and Anglesey
In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.
This needs full planning permission from your council in Wales.
What can change the price or programme?
- Planning policy on replacement dwellings varies, especially in green belt and countryside.
- Asbestos is common in post-war houses and must be removed by licensed contractors where required.
What happens after I enquire?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Site visit. We walk the plot or existing house, look at access, levels, services and boundaries, and talk through what could be built.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Knock down and rebuild: common questions
How long does it take?
Around 36 to 60 weeks including demolition.
What happens about asbestos?
An asbestos survey is done before demolition and any asbestos is removed safely first.
Can you visit a house in Bangor, Gwynedd and Anglesey to quote?
Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.
Knock down and rebuild in nearby towns
- Knock down and rebuild in Llangefni
- Knock down and rebuild in Caernarfon
- Knock down and rebuild in Colwyn Bay
- Knock down and rebuild in Holyhead
Learn more about knock down and rebuild, or see every project we cover in Bangor.