Extending your home in Penrith
Every type of house extension in Penrith, from single-storey kitchen extensions to two-storey additions, side returns and orangeries. We design, handle the approvals and build.
- Postcode districtsCA11
- Price regionNorth West England (×0.95)
- Planning rulesEngland
- Site visitFree, no obligation
Where we work near Penrith
Site visits are available across Penrith (CA11). The same team covers Carlisle (17 miles), Kendal (23 miles), Workington (30 miles), Whitehaven (33 miles), Ulverston (34 miles), all within easy reach. Hexham, in Northumberland, is roughly 35 miles from Penrith and also on our list.
Choosing the right extension in Penrith
Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.
For many houses here, single-storey rear extensions, kitchen extensions or side return extensions gives the most useful space for the budget.
Guide prices for Penrith
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) |
|---|---|---|
| Extensions over a garage | 12 m² | £23,500 – £31,000 |
| Side return extensions | 11 m² | £25,000 – £31,500 |
| Orangery extensions | 16 m² | £42,500 – £53,500 |
| Kitchen extensions | 20 m² | £39,500 – £50,500 |
| Double-storey extensions | 32 m² | £54,500 – £71,500 |
Planning rules in Penrith
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.
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).
Every extension type in Penrith
- Conservatory replacement extensions · from £19,000
- Planning permission for extensions · from £300
- Glass box extensions · from £28,500
- Kitchen extensions · from £25,500
- Home office extensions · from £15,000
- Porch extensions · from £3,800
- Extensions over a garage · from £22,500
- Extension plans and drawings · from £1,100
- Timber frame extensions · from £19,500
- Utility and boot room extensions · from £13,000
- Annexe extensions · from £52,000
- Building regulations for extensions · from £850
- Bedroom extensions · from £24,500
- Bungalow extensions · from £24,500
- Orangery extensions · from £28,500
- Flat roof extensions · from £19,500
- Side extensions · from £20,500
- Side return extensions · from £17,000
- Pitched roof extensions · from £21,000
- Double-storey extensions · from £36,000
- Single-storey rear extensions · from £19,500
- Wraparound extensions · from £34,000
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
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
We build it with one project manager, book the building control inspections and hand over the completion certificate.
Questions about extensions in Penrith
How much does an extension cost in Penrith?
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.
How long does an extension take in Penrith?
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.
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.
Do I need planning permission for an extension in Penrith?
Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.
Book a free site visit in Penrith
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.