Side return extensions in Walton-on-Thames

Covering Walton-on-Thames

Alongside Walton-on-Thames, we also cover Sunbury-on-Thames, Esher (2 miles to the south-east) and Hanworth.

Homes in the South East

The South East has a lot of 1930s and post-war semi-detached housing, well suited to rear extensions and hip-to-gable loft conversions, alongside period properties in conservation areas that need a more careful design.

What is a side return extension?

A side return extension builds over the narrow passage that runs beside the back of many Victorian and Edwardian terraced houses, widening the kitchen or dining room by a metre or two. It is usually combined with a glazed or part-glazed roof so the deeper room still gets daylight.

Structural steel to remove the side wall
Glazed or solid roof with rooflights
Plastering and making good to the old house

How much should I budget for a side return extension?

Indicative costs for side return extensions. London and the South East usually sit towards the top of each range.

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?

English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.

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 Walton-on-Thames homeowners check first?

Most side returns touch a shared boundary, so the Party Wall etc. Act 1996 usually applies in England and Wales.
Access is often through the house, so we plan deliveries and protect floors.

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.
Survey at your house. We look at the existing structure, services and access, and agree what the design needs to achieve.
Design and fixed price. You get drawings and a written price for the agreed specification before anything is ordered.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Your questions answered

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.

Is a glazed roof too hot in summer?

Modern solar-control glass and a mix of glazed and solid roof keep it comfortable. We advise on the balance during design.

Do you work in Walton-on-Thames?

Yes. Walton-on-Thames is within our coverage for side return extensions, along with nearby Sunbury-on-Thames and Esher.

Other towns nearby

Learn more about side return extensions, or see every project we cover in Walton-on-Thames.