Chelmsley Wood, West Midlands
Glazed rear extension in Chelmsley Wood
Glazed rear extension in Chelmsley Wood: full-height glass, slim frames and big rooflights for the most open rear room. We measure the house, show you what the rules allow, price it in writing and build it.
Chelmsley Wood is covered from our West Midlands round, including B37. A wide sliding door with one long rooflight, rather than a fully glazed roof, keeps a glass-led extension usable in summer.
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 glazed rear extension cost in Chelmsley Wood?
For Chelmsley Wood we work from the West Midlands rate: £2,800–£4,800 per square metre of new floor, including VAT, standard specification. The West Midlands is the baseline for our guide prices.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £33,500–£57,500 |
| 4 m wide × 6 m deep (24 m²) | £67,000–£115,000 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a glazed rear extension in Chelmsley Wood?
Whether your glazed rear extension in Chelmsley Wood needs a planning application depends on its size, your house and any local restrictions.
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.
New fabric must meet Approved Document L (2021 edition incorporating 2023 amendments): walls 0.18, roof 0.15 and floor 0.18 W/m²K, windows 1.4 W/m²K or Band B. Under the simple route, new windows, doors and rooflights should not exceed 25% of the extension floor area plus any openings removed; more glass is possible with a whole-house calculation.
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 Chelmsley Wood like to extend?
Red-brick terraces and 1930s semis make up much of Chelmsley Wood. Many already have a small kitchen lean-to at the back, which a new rear extension usually replaces rather than adds to.
How a glazed rear extension in Chelmsley Wood 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.
Glazed rear extensions near Chelmsley Wood
We also build glazed and glass-box rear extensions in nearby Castle Vale (3.7 miles) and Acocks Green (3.8 miles).
- Glazed rear extension in Castle Vale
- Glazed rear extension in Acocks Green
- Glazed rear extension in Washwood Heath
- Glazed rear extension in Solihull
- Glazed rear extension in Shirley
Other work in Chelmsley Wood:
FAQ
Glazed rear extension questions in Chelmsley Wood
Is the site visit in Chelmsley Wood free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
How long does a rear extension take to build in Chelmsley Wood?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Does glass need planning permission?
The same rules apply as any rear extension; glass does not change the depth or height limits.
How much does a glazed rear extension cost in Chelmsley Wood?
As a guide, £2,800–£4,800 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £33,500–£57,500 at that rate. Your written price follows the survey.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Do you handle building control in Chelmsley Wood?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.