Poole, Dorset
Glazed rear extension in Poole
We plan and build glazed and glass-box rear extensions for homeowners in Poole. Full-height glass, slim frames and big rooflights for the most open rear room. Start with a free site visit, then a written price once the design is agreed.
Poole and its postcode districts BH12, BH13, BH14 and BH15 are part of our Dorset coverage. If your garden in Poole faces south, expect us to talk about overhangs and solar-control glass before frame colours.
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 Poole?
For Poole we work from the South West England rate: £2,910–£4,990 per square metre of new floor, including VAT, standard specification. South West prices run slightly above our West Midlands baseline; natural stone to match the house is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £35,000–£60,000 |
| 4 m wide × 6 m deep (24 m²) | £70,000–£120,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a glazed rear extension in Poole?
Here is how the rules in England apply to a glazed rear extension in Poole.
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. 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 Poole like to extend?
Stone-built and rendered houses are common around Poole, so matching the walling is a design decision in its own right: natural stone, reconstituted stone or a render finish across old and new.
How a glazed rear extension in Poole comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
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 Poole
From Poole, the nearest places we also cover are Canford Heath (2.6 miles) and Broadstone (3.0 miles).
- Glazed rear extension in Canford Heath
- Glazed rear extension in Broadstone
- Glazed rear extension in Bournemouth
- Glazed rear extension in Wimborne Minster
- Glazed rear extension in Swanage
Other work in Poole:
FAQ
Glazed rear extension questions in Poole
What postcode areas do you cover around Poole?
Including BH12, BH13, BH14, BH15 and BH17, and the surrounding Dorset area.
Do you handle building control in Poole?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Sliding or bifold doors?
Sliders give bigger panes and slimmer sightlines; bifolds open the whole width. Our guide compares them.
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.
How long does a rear extension take to build in Poole?
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 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.