Side return extensions in Stamford Hill

Covering Stamford Hill

We work in Stamford Hill (N15, N16) and the places around it, including Highbury, Tottenham and Holloway.

Homes in London

Terraced houses dominate many London neighbourhoods, so most projects involve shared walls, narrow access and a party wall process. Conservation areas are widespread, and some boroughs have their own mansard and basement guidance.

What does a side return extension involve?

Side returns are small in area but heavy in detail: party walls, a glazed roof, and steelwork to take out the original back wall. We design the roof for light and drainage, agree the party wall process early, and keep the work tidy because access is often through the house.

Party wall notices and surveyor liaison
Structural steel to remove the side wall
Plastering and making good to the old house

What will a side return extension cost?

Guide prices for side return extensions, including VAT where it applies. Your fixed price is confirmed in writing after the survey.

Side return extensions	Guide price incl. VAT
Standard specification	£3,350 to £3,700 per m²
Good specification	£3,700 to £4,150 per m²
High specification	£4,150 to £4,550 per m²

What approvals does a side return extension need in England?

In England we deal with the council’s planning team for permission or a lawful development certificate, with building control (the council or a registered building control approver) for inspections, and with neighbours under the Party Wall etc. Act 1996 where it applies.

In England a single-storey rear extension can often go ahead under permitted development: up to 3 m deep on an attached house or 4 m on a detached one, no higher than 4 m, with eaves no higher than 3 m within 2 m of a boundary.

What should Stamford Hill homeowners check first?

Access is often through the house, so we plan deliveries and protect floors.
Glazed roofs need careful detailing against the neighbour’s wall.

What happens after I enquire?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Side return extensions: common questions

Does a side return need planning permission?

In England it can be permitted development if it is single storey, no higher than 4 m and no wider than half the original house. Conservation areas are the main exception.

Will I need a party wall agreement?

Most likely, because the new wall usually sits on or near the boundary. We serve the notices and work with your neighbour’s surveyor if one is appointed.

How do I get a price for side return extensions in Stamford Hill?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Side return extensions in nearby towns

Learn more about side return extensions, or see every project we cover in Stamford Hill.