Hartlepool house extensions
From a small utility to a two-storey addition, we take on house extensions throughout Hartlepool, starting with a free visit and a planning check.
- Postcode districtsTS24, TS25, TS26, TS27
- Price regionNorth East England (×0.91)
- Planning rulesEngland
- Site visitFree, no obligation
Covering Hartlepool and nearby
We cover Hartlepool and the postcode districts TS24, TS25, TS26, TS27. We also work in nearby Peterlee (7 miles), Billingham (7 miles), Stockton-on-Tees (9 miles), Thornaby-on-Tees (11 miles), Seaham (12 miles). Middlesbrough, in North Yorkshire, is roughly 8 miles from Hartlepool and also on our list.
What works best for Hartlepool houses?
The North East has many brick terraces, colliery-era housing and post-war semis, with rear extensions and kitchen extensions the most common requests.
The types we would usually look at first for a home in Hartlepool are double-storey extensions, kitchen extensions and single-storey rear extensions, depending on the garden and how the house is laid out.
Planning rules in Hartlepool
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 two-storey rear extension is permitted development only if it projects no more than 3 m from the original rear wall, sits at least 7 m from the rear boundary, matches the roof pitch and uses obscure, non-opening side windows upstairs. Most two-storey extensions therefore go through a householder planning application, which costs £548 from 1 April 2026 and normally takes about 8 weeks.
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.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
Popular extension prices in Hartlepool
We publish guide prices so you can budget before anyone visits. For Hartlepool they are adjusted by ×0.91, the factor we use across North East England.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Double-storey extensions | 32 m² | £52,000 – £68,500 |
| Orangery extensions | 16 m² | £40,500 – £51,000 |
| Side return extensions | 11 m² | £24,000 – £30,500 |
| Extensions over a garage | 12 m² | £22,500 – £29,500 |
| Wraparound extensions | 25 m² | £52,000 – £66,000 |
| Kitchen extensions | 20 m² | £38,000 – £48,500 |
Every extension type in Hartlepool
- Side return extensions · from £16,000
- Building regulations for extensions · from £800
- Extension plans and drawings · from £1,050
- Porch extensions · from £3,600
- Wraparound extensions · from £32,500
- Annexe extensions · from £50,000
- Orangery extensions · from £27,000
- Kitchen extensions · from £24,500
- Double-storey extensions · from £34,500
- Bungalow extensions · from £23,500
- Pitched roof extensions · from £20,000
- Planning permission for extensions · from £300
- Conservatory replacement extensions · from £18,000
- Glass box extensions · from £27,000
- Utility and boot room extensions · from £12,500
- Flat roof extensions · from £19,000
- Single-storey rear extensions · from £19,000
- Extensions over a garage · from £21,500
- Timber frame extensions · from £19,000
- Bedroom extensions · from £23,500
- Home office extensions · from £14,500
- Side extensions · from £20,000
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
The build is managed from start to finish, inspected at each stage and signed off on completion.
Questions about extensions in Hartlepool
How much does an extension cost in Hartlepool?
Using our North East England factor (×0.91), a standard-spec single-storey extension of 20 m² is a guide £37,000 to £47,500 including VAT, and a 32 m² two-storey extension £52,000 to £68,500. Your written price follows the survey.
Can I get a price before anyone visits?
Yes. This page shows guide prices adjusted for Hartlepool, and the guide-price tool gives a range for your own size and finish in about a minute.
Do you handle building regulations?
Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.
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.
Will my neighbours need to be told?
If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.
Book a free site visit in Hartlepool
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.