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Becontree timber frame extensions, designed and built

Becontree homeowners can use us for the whole timber frame extension project: survey, design, planning or permitted development checks, building regulations and the build itself.

  • Guide price in BecontreeFrom £27,000 inc VAT
  • PlanningOften permitted development (3–4 m), or prior approval up to 6–8 m
  • Build time8–14 weeks on site
  • Postcode districtsE20, IG3, RM6, RM8, RM9
Timber frame extension under construction with OSB sheathing and roof joists

Timber frame extension prices in Becontree

For Becontree we adjust our national guide rates by ×1.3, the factor we use for London. Figures include VAT; your written quote after the survey replaces them.

Typical rates in Becontree: £2,280 to £4,420 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
3 m × 4 m
12 m²
£27,000 – £33,000£31,500 – £41,500£40,500 – £53,500
4 m × 5 m
20 m²
£45,500 – £55,000£53,000 – £69,000£67,500 – £88,500
5 m × 6 m
30 m²
£68,000 – £82,000£79,500 – £103,500£101,000 – £133,000

Want a range for your exact size? The guide-price tool takes about a minute.

Will the council need to approve it?

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.

Homes in conservation areas, national parks, National Landscapes (formerly AONBs), the Broads and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.

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.

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).

Local to Becontree

Across E20, IG3, RM6, RM8, RM9, RM10, we can visit, measure and advise. Nearby, we also take on projects in Dagenham (2 miles), Barking (2 miles), Ilford (2 miles), Romford (3 miles).

Just over the Essex border, South Ockendon is about 7 miles away. In London, space is at a premium and gardens are often short, so side returns, wraparounds and carefully planned rear extensions tend to make the most of every metre.

Who a timber frame extension suits

  • Contemporary designs with timber or board cladding
  • Sites where weight or speed matters
  • Homeowners who want strong energy performance

What happens next

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

    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

    With the design and specification agreed, you get a fixed written price and a start date.

  4. Build and sign-off

    We build it with one project manager, book the building control inspections and hand over the completion certificate.

Your questions about a timber frame extension in Becontree

Do I need building regulations approval in Becontree?

Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.

Will my neighbours in Becontree 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.

How long does a timber frame extension take to build in Becontree?

On site, typically 8 to 14 weeks once approvals are in place. Before that, allow 4–12 weeks design and approvals.

Does a timber frame extension need planning permission?

The same planning rules apply as for any extension. If the cladding looks different from the house, permitted development’s matching-materials condition may mean an application is needed.

Is timber frame cheaper than brick?

It is similar overall. The frame can save time on site, but the cladding choice has a big effect on cost. Our guide range is about £2,280 to £4,420 per m² including VAT.

Book a free site visit in Becontree

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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