Old Swan, Merseyside
Terraced house rear extension in Old Swan
Terraced house rear extension in Old Swan: rear and side return extensions for terraces, with access through the house and two neighbours. We measure the house, show you what the rules allow, price it in writing and build it.
Old Swan sits in Merseyside, with postcode districts including L13, L14 and L15. In Old Swan we plan the delivery route through the house and the skip licence before anything else.
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 terraced house rear extension cost in Old Swan?
Guide prices for a terraced house rear extension in Old Swan start from our North West England rate of £1,930–£3,100 per square metre, including VAT. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £26,000–£42,000 |
| 3 m wide × 6 m deep (18 m²) | £34,500–£56,000 |
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 terraced house rear extension in Old Swan?
Here is how the rules in England apply to a terraced house rear extension in Old Swan.
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.
Because rear extensions often sit on or near the boundary, the Party Wall etc. Act 1996 usually applies in England. Notices go out one or two months before work depending on the type of work, and a surveyor's award is only needed if a neighbour does not consent.
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 Old Swan like to extend?
Stone and brick terraces are common around Old Swan. Where houses back onto a ginnel or alley, deliveries can come in from the rear, which makes the build tidier.
How a terraced house rear extension in Old Swan 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
Planning and regulations
We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Terraced house rear extensions near Old Swan
We also build rear extensions for terraced houses in nearby Knotty Ash (0.5 miles) and Wavertree (1.1 miles).
- Terraced house rear extension in Knotty Ash
- Terraced house rear extension in Wavertree
- Terraced house rear extension in Childwall
- Terraced house rear extension in West Derby
- Terraced house rear extension in Kensington
Other work in Old Swan:
FAQ
Terraced house rear extension questions in Old Swan
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.
Do you handle building control in Old Swan?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
How do you keep the house clean?
Dust screens, floor protection and a single protected route through the house.
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.
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 Old Swan?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.