Carlisle house extensions
Planning an extension in Carlisle? Compare extension types, see guide prices adjusted for Carlisle and book a free site visit.
- Postcode districtsCA1, CA2, CA3
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Choosing the right extension in Carlisle
The North West has a high share of Victorian and Edwardian terraces with rear yards and outriggers, plus large areas of inter-war semis in the suburbs.
The types we would usually look at first for a home in Carlisle are side return extensions, single-storey rear extensions and kitchen extensions, depending on the garden and how the house is laid out.
Guide prices for Carlisle
Use these Carlisle guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.
| Extension type | Example size | Standard spec (inc VAT) |
|---|---|---|
| Conservatory replacement extensions | 14 m² | £28,500 – £37,000 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
| Single-storey rear extensions | 20 m² | £38,500 – £49,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
Approvals for an extension in Carlisle
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).
Where we work near Carlisle
Our survey diary covers Carlisle, including CA1, CA2, CA3. Neighbouring towns we cover include Penrith (17 miles), Workington (30 miles), Whitehaven (35 miles), Kendal (40 miles), Ulverston (48 miles). For homes towards Northumberland, Hexham is around 34 miles away.
Extension types and starting prices
- Utility and boot room extensions · from £13,000
- Bedroom extensions · from £24,500
- Double-storey extensions · from £36,000
- Flat roof extensions · from £19,500
- Kitchen extensions · from £25,500
- Extension plans and drawings · from £1,100
- Side return extensions · from £17,000
- Planning permission for extensions · from £300
- Home office extensions · from £15,000
- Timber frame extensions · from £19,500
- Porch extensions · from £3,800
- Single-storey rear extensions · from £19,500
- Conservatory replacement extensions · from £19,000
- Wraparound extensions · from £34,000
- Annexe extensions · from £52,000
- Glass box extensions · from £28,500
- Extensions over a garage · from £22,500
- Orangery extensions · from £28,500
- Bungalow extensions · from £24,500
- Side extensions · from £20,500
- Building regulations for extensions · from £850
- Pitched roof extensions · from £21,000
Free site visit
We visit your Carlisle home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
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 Carlisle
How much does an extension cost in Carlisle?
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 Carlisle, 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.
How long does an extension take in Carlisle?
Usually 2 to 4 months of design and approvals, then 10 to 16 weeks on site for a single-storey extension or 16 to 24 weeks for two storeys.
Book a free site visit in Carlisle
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.