Side return extensions · Swanage

Side return extensions in Swanage

From the first site visit to the final building control sign-off, we manage side return extensions in Swanage so you only have one company to deal with.

Covering Swanage

Swanage sits 22 miles east of Dorchester, with Poole 7 miles to the north and Bournemouth 8 miles to the north-east.

Homes in the South West

In the South West, matching local stone, render or slate is often the main design question, and conservation areas and listed buildings are common in historic towns.

What do you get with 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.

  • Party wall notices and surveyor liaison
  • Drainage and new gully positions
  • Plastering and making good to the old house

How much does a side return extension cost in Swanage?

Typical ranges for side return extensions. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

Side return extensionsGuide 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?

Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 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 can change the price or programme?

  • 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?

  1. Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
  2. We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
  3. Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
  4. Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Questions about a side return extension in Swanage

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 long does a side return take?

About 10 to 14 weeks on site.

Do you work in Swanage?

Yes. Swanage is within our coverage for side return extensions, along with nearby Poole and Bournemouth.

Also covering

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

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