Castle Vale, West Midlands
Side return extension in Castle Vale
We plan and build side return extensions for homeowners in Castle Vale. Infilling the narrow passage beside a Victorian or Edwardian back addition. Start with a free site visit, then a written price once the design is agreed.
Castle Vale sits in the West Midlands, with postcode districts including B24, B34 and B35. In Castle Vale we check the boundary line and the neighbour's gutter before drawing a side return, because a few centimetres decide whether the wall goes on or beside the boundary.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a side return extension cost in Castle Vale?
A side return extension in Castle Vale is priced at £2,300–£3,800 per square metre including VAT as a guide, before kitchen fit-out and fees. The West Midlands is the baseline for our guide prices.
| Size | Guide price inc VAT |
|---|---|
| 2 m wide × 6 m deep (12 m²) | £27,500–£45,500 |
| 2.5 m wide × 7 m deep (17.5 m²) | £40,500–£66,500 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a side return extension in Castle Vale?
Planning for a side return extension in Castle Vale follows the English householder rules.
Side return infills and the side leg of a wraparound are treated as side extensions in England: single-storey, no more than 4 metres high and no wider than half the original house. They are not permitted development in conservation areas, National Parks or National Landscapes, and a joined wraparound often needs a planning application because the side and rear rules apply together.
The Party Wall etc. Act 1996 applies in England: you serve notice two months before work to a shared wall, and one month before digging foundations within 3 metres (or 6 metres for deeper foundations) of a neighbour's building. Neighbours can agree in writing; if they dissent, surveyors agree an award.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Castle Vale like to extend?
Castle Vale has a lot of post-war semis and estate houses with long gardens and side access, which makes rear extensions quicker to build.
How a side return extension in Castle Vale comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Side return extensions near Castle Vale
Close by, we work in Washwood Heath, about 1.8 miles away, and Sutton Coldfield, about 3.4 miles away.
- Side return extension in Washwood Heath
- Side return extension in Sutton Coldfield
- Side return extension in Chelmsley Wood
- Side return extension in Aston
- Side return extension in Acocks Green
Other work in Castle Vale:
FAQ
Side return extension questions in Castle Vale
Do you handle building control in Castle Vale?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
How much does a side return extension cost in Castle Vale?
As a guide, £2,300–£3,800 per square metre including VAT for a standard specification. For example, 2 m wide × 6 m deep (12 m²): about £27,500–£45,500 at that rate. Your written price follows the survey.
Can I combine a side return with a rear extension?
Yes; that is a wraparound extension, and it gives the biggest open-plan room a terrace can have.
Can you match the brick or stone on my Castle Vale house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
Is the site visit in Castle Vale free?
Yes. We visit, measure up and talk through the options with no cost and 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.