Old Swan, Merseyside
Rear extension planning drawings in Old Swan
We plan and build rear extensions for homeowners in Old Swan. Measured survey, design options, planning drawings and the application, handled for you. Start with a free site visit, then a written price once the design is agreed.
Old Swan sits in Merseyside, with postcode districts including L13, L14 and L15. Planning applications in Old Swan go to the local planning authority covering Old Swan, and we check its local design guidance for rear extensions before drawing.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in Old Swan?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. 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 rear extension in Old Swan?
Here is how the rules in England apply to a rear extension in Old Swan.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
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?
Old Swan has long runs of terraced houses with back yards and alleys, plus 1930s semis further out. Yard extensions on terraces are often single-storey and close to both boundaries.
How a 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.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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.
Rear extension planning drawings near Old Swan
Neighbouring places we cover include Knotty Ash (0.5 miles) and Wavertree (1.1 miles).
- Rear extension planning drawings in Knotty Ash
- Rear extension planning drawings in Wavertree
- Rear extension planning drawings in Childwall
- Rear extension planning drawings in West Derby
- Rear extension planning drawings in Kensington
Other work in Old Swan:
FAQ
Rear extension planning drawings questions in Old Swan
What do rear extension planning drawings cost in Old Swan?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension and £2,000–£3,500 for a two-storey scheme, covering the measured survey, design options and the application. The council fee is extra.
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 I see the design in 3D?
Yes; we produce simple 3D views so you can judge the size and light.
What postcode areas do you cover around Old Swan?
Including L13, L14 and L15, and the surrounding Merseyside area.
Can you match the brick or stone on my Old Swan house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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.