House extensions in Blackpool
Looking to extend your home in Blackpool? Start here: extension types, guide prices for Blackpool, the planning rules that apply and how a project runs.
- Postcode districtsFY1, FY2, FY3, FY4, FY5, FY6
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Covering Blackpool and nearby
Our survey diary covers Blackpool, including FY1, FY2, FY3, FY4, FY5, FY6. The same team covers Poulton-le-Fylde (3 miles), Thornton-Cleveleys (4 miles), Lytham St Annes (6 miles), Fleetwood (8 miles), Preston (15 miles), all within easy reach. For homes towards Merseyside, Southport is around 12 miles away.
Blackpool extension prices at a glance
Prices on this page use our North West England factor of ×0.95, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Wraparound extensions | 25 m² | £54,500 – £69,000 |
| Side return extensions | 11 m² | £25,000 – £31,500 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
Choosing the right extension in Blackpool
Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.
Start by comparing side return extensions, single-storey rear extensions and kitchen extensions: between them they cover most of the layouts we see requested for houses like these.
Planning rules in Blackpool
In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.
In England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Choose an extension type
- Orangery extensions · from £28,500
- Side return extensions · from £17,000
- Single-storey rear extensions · from £19,500
- Wraparound extensions · from £34,000
- Side extensions · from £20,500
- Bedroom extensions · from £24,500
- Utility and boot room extensions · from £13,000
- Porch extensions · from £3,800
- Kitchen extensions · from £25,500
- Pitched roof extensions · from £21,000
- Building regulations for extensions · from £850
- Timber frame extensions · from £19,500
- Home office extensions · from £15,000
- Extensions over a garage · from £22,500
- Flat roof extensions · from £19,500
- Glass box extensions · from £28,500
- Conservatory replacement extensions · from £19,000
- Annexe extensions · from £52,000
- Bungalow extensions · from £24,500
- Extension plans and drawings · from £1,100
- Double-storey extensions · from £36,000
- Planning permission for extensions · from £300
Free site visit
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
Work is carried out to the agreed programme, inspected by building control and signed off at the end.
Questions about extensions in Blackpool
How much does an extension cost in Blackpool?
Using our North West England factor (×0.95), a standard-spec single-storey extension of 20 m² is a guide £38,500 to £49,500 including VAT, and a 32 m² two-storey extension £54,500 to £71,500. Your written price follows the survey.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Blackpool, and the guide-price tool gives a range for your own size and finish in about a minute.
Who do I contract with?
Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
Do you cover all of Blackpool?
Yes, including the surrounding parts of Lancashire. Site visits are free and there is no obligation.
Book a free site visit in Blackpool
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.