Rear extension design, approvals and build across the UKCall 0800 088 6341 · Online guide price
Rear Extensionsrear-extensions.co.uk 0800 088 6341 Get a guide price

West Yorkshire

Rear extensions in Heckmondwike

Rear extensions in Heckmondwike: single-storey and two-storey extensions, side returns, wraparounds and glass-led designs, planned around back-to-back and through terraces and the English rules.

Heckmondwike is in West Yorkshire, with postcode districts including WF13, WF15 and WF16. The nearest places we also cover are Liversedge (0.7 miles) and Batley (1.8 miles).

Book a free site visit

Tell us about the house and we'll call to arrange a free, no-obligation visit.

Rear extensions we build in Heckmondwike

Also available across West Yorkshire:

Rear extension prices in Heckmondwike

Yorkshire prices sit below our West Midlands baseline; matching natural stone is the main variable.

ExampleGuide inc VAT
Single-storey, 3 m × 4 m (12 m²)£21,000–£34,500
Single-storey, 4 m × 6 m (24 m²)£42,500–£69,000
Two-storey, 3 m × 5 m footprint (30 m²)£50,000–£75,500
Side return, about 14 m²£30,000–£49,500
Wraparound, about 25 m²£51,000–£83,500

What are homes in Heckmondwike like to extend?

Heckmondwike has through terraces and some back-to-backs as well as later semis; back-to-backs have little or no rear space, so we look at side or loft options there.

Planning rules for Heckmondwike

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.

Every rear extension in England needs Building Regulations approval, whether or not planning is needed. You can use the council's building control service or a registered building control approver, by full plans (checked before work, usually within five weeks) or a building notice, and you get a completion certificate at the end.

Nearby towns

FAQ

Questions people ask

How much is a rear extension in Heckmondwike?

A 3 m × 4 m single-storey rear extension is about £21,000–£34,500 including VAT at our Yorkshire and the Humber guide rates; the written price follows a survey.

Do I need planning permission in Heckmondwike?

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 Heckmondwike 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.

CallGuide price