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Kent

House extensions in Ashford, Kent

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

  • Postcode districtsTN23, TN24, TN25
  • Price regionSouth East England (×1.12)
  • Planning rulesEngland
  • Site visitFree, no obligation
Orangery extension with brick piers, a glass roof lantern and French doors

Where we work near Ashford, Kent

Across TN23, TN24, TN25, we can visit, measure and advise. Nearby, we also take on projects in Faversham (12 miles), Canterbury (13 miles), Folkestone (13 miles), Sittingbourne (15 miles), Whitstable (16 miles). Just over the East Sussex border, Hastings is about 24 miles away.

Choosing the right extension in Ashford, Kent

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

The types we would usually look at first for a home in Ashford, Kent are double-storey extensions, single-storey rear extensions and wraparound extensions, depending on the garden and how the house is laid out.

Planning rules in Ashford, Kent

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.

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.

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

What extensions cost in Ashford, Kent

Use these Ashford, Kent guide prices to sense-check a budget; the guide-price tool narrows them to your own size, and the site visit turns them into a written figure.

Extension typeExample sizeStandard spec (inc VAT)
Wraparound extensions25 m²£64,000 – £81,500
Conservatory replacement extensions14 m²£33,500 – £43,500
Single-storey rear extensions20 m²£45,500 – £58,500
Orangery extensions16 m²£50,000 – £63,000
Side return extensions11 m²£29,500 – £37,000
Extensions over a garage12 m²£28,000 – £36,500
  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

    We draw the design, agree it with you and handle planning or permitted development checks and building regulations.

  3. Fixed written price

    You receive a written, itemised price and programme. Nothing starts until you are happy with it.

  4. 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 Ashford, Kent

How much does an extension cost in Ashford, Kent?

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.

Do you handle building regulations?

Yes. We prepare the drawings and calculations, submit them and book inspections, ending with a completion certificate.

Do I need planning permission for an extension in Ashford, Kent?

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 Ashford, Kent?

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.

Can I get a price before anyone visits?

Yes. This page shows guide prices adjusted for Ashford, Kent, and the guide-price tool gives a range for your own size and finish in about a minute.

Book a free site visit in Ashford, Kent

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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