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Home office extensions across Tunbridge Wells

Tunbridge Wells homeowners can use us for the whole home office extension project: survey, design, planning or permitted development checks, building regulations and the build itself.

  • Guide price in Tunbridge WellsFrom £17,500 inc VAT
  • PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
  • Build time8–12 weeks on site
  • Postcode districtsTN1, TN2, TN3, TN4
Home office extension with a desk facing a large garden window and a rooflight

Who a home office extension suits

  • People who work from home most of the week
  • Homes where a loft or garden room is not practical
  • Households that need a second quiet room

North-facing glass and rooflights give steadier light for screen work. Where the office faces south, we use deeper reveals or external shading to keep glare and heat down.

Do I need planning permission in Tunbridge Wells?

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.

Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.

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 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).

What should I budget for a home office extension in Tunbridge Wells?

For Tunbridge Wells we adjust our national guide rates by ×1.12, the factor we use for South East England. Figures include VAT; your written quote after the survey replaces them.

Typical rates in Tunbridge Wells: £2,070 to £3,810 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
2.5 m × 3.2 m
8 m²
£17,500 – £21,500£19,000 – £24,500£24,000 – £30,500
3 m × 3.6 m
11 m²
£22,500 – £27,500£26,000 – £33,500£33,000 – £42,000
3 m × 5 m
15 m²
£31,000 – £37,000£36,000 – £45,500£45,000 – £57,500

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

Local to Tunbridge Wells

We cover Tunbridge Wells and the postcode districts TN1, TN2, TN3, TN4. The same team covers Tonbridge (4 miles), Sevenoaks (10 miles), Maidstone (14 miles), Swanley (19 miles), all within easy reach.

Crowborough, in East Sussex, is roughly 7 miles from Tunbridge Wells and also on our list. 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.

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

    First, a site visit: we look at the house, garden, access and drains and listen to what you need.

  2. 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.

  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

    The build is managed from start to finish, inspected at each stage and signed off on completion.

Your questions about a home office extension in Tunbridge Wells

Will my neighbours in Tunbridge Wells 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 for a home office extension in Tunbridge Wells?

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.

Do you cover all of Tunbridge Wells?

Yes. We cover Tunbridge Wells and the surrounding parts of Kent. Site visits are free and there is no obligation.

Can I claim the cost against tax?

Building work on your home is not normally an allowable business expense, and claiming it can have capital gains tax effects. Speak to an accountant before assuming any tax relief.

How much does a home office extension cost?

Our guide range is about £2,070 to £3,810 per m² including VAT. An 11 m² standard-spec office is typically £26,000 to £33,500 in Tunbridge Wells.

Book a free site visit in Tunbridge Wells

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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