South Croydon, Greater London
Glazed rear extension in South Croydon
Full-height glass, slim frames and big rooflights for the most open rear room. We design, get the approvals for and build glazed and glass-box rear extensions in South Croydon and the surrounding area, with one contract from the first survey to building control sign-off.
South Croydon sits in Greater London, with postcode districts including CR0, CR2 and CR8. Glass-led rear extensions in South Croydon are planned around which way the garden faces, because that decides the glass specification.
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 South Croydon?
Guide prices for a glazed rear extension in South Croydon start from our London rate of £3,640–£6,240 per square metre, including VAT. London prices sit at the top of our range because of labour rates, access through the house, parking suspensions and skip licences.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £43,500–£75,000 |
| 4 m wide × 6 m deep (24 m²) | £87,500–£150,000 |
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 glazed rear extension in South Croydon?
Here is how the rules in England apply to a glazed rear extension in South Croydon.
English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres 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. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in South Croydon like to extend?
South Croydon is mostly 1930s semis, short terraces and post-war houses, so full-width single-storey and two-storey rear extensions are realistic on many plots. Some later estates had permitted development rights removed by condition, so we check the planning history first.
How a glazed rear extension in South Croydon 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
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 South Croydon
Close by, we work in Croydon, about 1.5 miles away, and Purley, about 1.9 miles away.
- Glazed rear extension in Croydon
- Glazed rear extension in Purley
- Glazed rear extension in Sanderstead
- Glazed rear extension in Shirley
- Glazed rear extension in Kenley
Other work in South Croydon:
FAQ
Glazed rear extension questions in South Croydon
How long does a rear extension take to build in South Croydon?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
What postcode areas do you cover around South Croydon?
Including CR0, CR2 and CR8, and the surrounding Greater London area.
Can I have a level threshold?
Yes, with a drainage channel outside the doors and the slab set to the patio level.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Can you match the brick or stone on my South Croydon house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.