Hampshire

Fareham house extensions

Planning an extension in Fareham? Compare extension types, see guide prices adjusted for Fareham and book a free site visit.

Postcode districtsPO13, PO14, PO15, PO16, PO17
Price regionSouth East England (×1.12)
Planning rulesEngland
Site visitFree, no obligation

Get my guide price Call 0800 088 6341

Orangery extension with brick piers, a glass roof lantern and French doors

Fareham extension prices at a glance

Every figure below is a guide for Fareham, adjusted for South East England build costs (×1.12) and including VAT. Design and council fees are shown separately on each page.

Extension type	Example size	Standard spec (inc VAT)
Conservatory replacement extensions	14 m²	£33,500 – £43,500
Kitchen extensions	20 m²	£47,000 – £59,500
Extensions over a garage	12 m²	£28,000 – £36,500
Single-storey rear extensions	20 m²	£45,500 – £58,500
Double-storey extensions	32 m²	£64,500 – £84,500
Wraparound extensions	25 m²	£64,000 – £81,500
Orangery extensions	16 m²	£50,000 – £63,000

Planning and building control in Fareham

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).

Choosing the right extension in Fareham

Homes across the South East range from Victorian terraces in the older town centres to large detached houses on the edges, so the right extension type varies street by street.

Start by comparing single-storey rear extensions, wraparound extensions and double-storey extensions: between them they cover most of the layouts we see requested for houses like these.

Areas we cover around Fareham

Across PO13, PO14, PO15, PO16, PO17, we can visit, measure and advise. The same team covers Gosport (4 miles), Portsmouth (5 miles), Waterlooville (7 miles), Havant (8 miles), Hythe (10 miles), all within easy reach. Cowes, in Isle of Wight, is roughly 8 miles from Fareham and also on our list.

All extension types we build in Fareham

Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
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 Fareham

How much does an extension cost in Fareham?

Using our South East England factor (×1.12), a standard-spec single-storey extension of 20 m² is a guide £45,500 to £58,500 including VAT, and a 32 m² two-storey extension £64,500 to £84,500. Your written price follows the survey.

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.

Do I need planning permission for an extension in Fareham?

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.

How long does an extension take in Fareham?

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 Fareham

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 .

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