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Building regulations for extensions across Fareham

We prepare building regulations for extensions for homes in Fareham, as a stand-alone service or as the first stage of a design and build project.

  • Guide price in FarehamFrom £1,000 inc VAT
  • Approval routeFull plans or building notice
  • Timescale2–5 weeks for drawings
  • Postcode districtsPO13, PO14, PO15, PO16, PO17
Builder installing a steel beam over a new rear opening on acrow props

Extensions in and around Fareham

Postcode districts we cover around Fareham include PO13, PO14, PO15, PO16, PO17. The same team covers Gosport (4 miles), Portsmouth (5 miles), Waterlooville (7 miles), Havant (8 miles), all within easy reach.

In the South East, plenty of houses have already been extended once, which makes checking the remaining permitted development allowance an important early step.

Included in a typical project

  • Submission to the council or a registered building control approver
  • Completion certificate on sign-off
  • Structural calculations for beams, lintels and foundations
  • Inspection bookings throughout the build
  • Energy and glazing checks, including whole-house calculations if needed

Fees in Fareham

Guide fees for Fareham including VAT, using our South East England factor of ×1.12. Council and building control charges are not included.

OptionWhat it coversGuide price
EssentialBuilding regulations drawings for a simple single-storey extension£1,000 – £2,050
StandardDrawings plus structural calculations£1,450 – £2,950
PremiumComplex or two-storey pack with energy calculations£2,450 – £4,300

Our design fee only. Building control charges are set by your council (or, in England and Wales, a registered building control approver) and quoted separately.

Try the guide-price tool to see a range for your own size and finish.

Planning and approvals in Fareham

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.

The planning position for a specific Fareham address depends on its history and any designations, which is why we check it at the first visit.

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.

Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.

Applications are decided by the local planning authority (your district, borough or unitary council).

From first visit to completion

Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.

  1. Free site visit

    A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.

  2. Design and approvals

    Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.

  3. Fixed written price

    The price is fixed in writing once the design is settled, with a clear programme and payment stages.

  4. Build and sign-off

    Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.

Common questions in Fareham

How long does this take for a Fareham home?

2–5 weeks for drawings, depending on the council and the complexity of the project.

Will my neighbours in Fareham be involved?

If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.

Who do I contract with in Fareham?

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.

Who are building control?

Either your local council’s building control team or a registered building control approver. Both inspect the work and issue the completion certificate.

Full plans or building notice?

A full plans application gets the drawings checked before work starts, which we usually recommend for extensions. A building notice is quicker to submit but carries more risk if something needs changing on site.

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 .

Book a free site visit

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