Streetly, West Midlands
Glazed rear extension in Streetly
Glazed rear extension in Streetly: 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.
Streetly and its postcode districts B44, B73 and B74 are part of our West Midlands coverage. 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 Streetly?
Guide prices for a glazed rear extension in Streetly start from our West Midlands rate of £2,800–£4,800 per square metre, including VAT. 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 |
We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a glazed rear extension in Streetly?
Here is how the rules in England apply to a glazed rear extension in Streetly.
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 Streetly like to extend?
Red-brick terraces and 1930s semis make up much of Streetly. 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 Streetly comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
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.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Glazed rear extensions near Streetly
From Streetly, the nearest places we also cover are Aldridge (2.1 miles) and Sutton Coldfield (3.0 miles).
- Glazed rear extension in Aldridge
- Glazed rear extension in Sutton Coldfield
- Glazed rear extension in Brownhills
- Glazed rear extension in Walsall
- Glazed rear extension in Pelsall
Other work in Streetly:
FAQ
Glazed rear extension questions in Streetly
How long does a rear extension take to build in Streetly?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do I need planning permission for a rear extension in Streetly?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
Does glass need planning permission?
The same rules apply as any rear extension; glass does not change the depth or height limits.
Do you handle building control in Streetly?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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.
What postcode areas do you cover around Streetly?
Including B44, B73 and B74, and the surrounding West Midlands area.