Two-storey extensions in Fareham
We design, get approval for and build two-storey extensions in Fareham and the surrounding area. Choose the type of extension below or book a free site visit.
Fareham at a glance
- Postcode districts
- PO14, PO15, PO16 and PO17
- Area
- Hampshire, England
- Price region
- South East England
- Nearest towns
- Gosport (4.5 miles), Cosham (5.1 miles), Portsmouth (5.3 miles), Southsea (6.1 miles)
- Distance to Southampton
- about 10.5 miles
- Approvals
- Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission.
We cover Fareham (PO14, PO15, PO16 and PO17) and the places around it, including Gosport (4.5 miles), Cosham (5.1 miles) and Portsmouth.
Extensions available in Fareham
Two-storey rear extensions
For homes in Fareham: typical guide from £61,500.
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Two-storey side extensions
Design, approvals and build for Fareham homes. Guide from £94,500.
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Two-storey wraparound extensions
Our South East England guide starts at £132,500 for this type.
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Part single, part two-storey extensions
Fareham guide price from £79,000, Standard spec.
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Extensions over a garage
For homes in Fareham: typical guide from £34,500.
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First-floor extensions
From £27,500 in Fareham. Free visit to firm it up.
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Two-storey extensions for semi-detached houses
From £61,500 in Fareham. Free visit to firm it up.
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Two-storey extensions for detached houses
Design, approvals and build for Fareham homes. Guide from £94,500.
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Kitchen extensions with bedrooms above
For homes in Fareham: typical guide from £61,500 (before kitchen units).
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Extra bedroom and en-suite extensions
Our South East England guide starts at £61,500 (plus en-suite) for this type.
Learn moreWhich type suits your house?
If you're not sure which type fits, that's what the free visit is for. We'll sketch the realistic options for your house in Fareham, with a rough idea of the approval route and cost for each.
Also available in Hampshire
- Two-storey front extensions
- Two-storey extensions for end-of-terrace houses
- Two-storey annexe extensions
- Garage conversions with a room above
- Two-storey extension plans and drawings
- Planning permission for two-storey extensions
- Structural engineering for two-storey extensions
- Building regulations for two-storey extensions
- Party wall notices for extensions
- Design and build two-storey extensions
Rules for Fareham
Fareham is in England. Two-storey rear: up to 3 m deep and 7 m from the rear boundary under permitted development. Side, wraparound and front: planning permission. Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
The full England rules explained
Questions about extensions in Fareham
Do you cover Fareham?
Yes. We cover Fareham (PO14, PO15, PO16 and PO17) and the surrounding area, including Gosport and Cosham. The first site visit is free.
What does a two-storey extension cost in Fareham?
Using our South East England guide, a two-storey rear extension with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space) is about £61,500–£83,000 including VAT. An extension over a garage is about £34,500–£50,500.
Which other places near Fareham do you cover?
Everywhere around it, including Gosport (4.5 miles), Cosham (5.1 miles) and Portsmouth (5.3 miles), and the rest of Hampshire.