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Suffolk

Rear extensions in Woodbridge

Rear extensions in Woodbridge: single-storey and two-storey extensions, side returns, wraparounds and glass-led designs, planned around post-war semis and newer estates and the English rules.

Woodbridge is in Suffolk, with postcode districts including IP12. The nearest places we also cover are Kesgrave (4.2 miles) and Ipswich (7.4 miles).

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Rear extensions we build in Woodbridge

Also available across Suffolk:

Rear extension prices in Woodbridge

East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.

ExampleGuide inc VAT
Single-storey, 3 m × 4 m (12 m²)£24,000–£39,500
Single-storey, 4 m × 6 m (24 m²)£48,500–£79,000
Two-storey, 3 m × 5 m footprint (30 m²)£57,000–£86,000
Side return, about 14 m²£34,000–£56,500
Wraparound, about 25 m²£58,500–£95,500

What are homes in Woodbridge like to extend?

Post-war semis and newer estates are typical of Woodbridge, and many have room for a full-width extension. Shrinkable clay is common in the East of England, so foundations near trees and hedges are designed to NHBC-style depth guidance.

Planning rules for Woodbridge

In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.

If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.

Planning and Building Regulations are separate in England: even a permitted development extension is inspected for foundations, drainage, structure, insulation, fire safety and ventilation, through the council or a registered building control approver, ending with a completion certificate.

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FAQ

Questions people ask

How much is a rear extension in Woodbridge?

A 3 m × 4 m single-storey rear extension is about £24,000–£39,500 including VAT at our East of England guide rates; the written price follows a survey.

Do I need planning permission in Woodbridge?

Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.

Is the site visit in Woodbridge free?

Yes, with no obligation.

Do I need a party wall agreement?

In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

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