St Leonards-on-Sea, East Sussex
Terraced house rear extension in St Leonards-on-Sea
Rear and side return extensions for terraces, with access through the house and two neighbours. We design, get the approvals for and build rear extensions for terraced houses in St Leonards-on-Sea and the surrounding area, with one contract from the first survey to building control sign-off.
St Leonards-on-Sea and its postcode districts TN34, TN37 and TN38 are part of our East Sussex coverage. On a St Leonards-on-Sea terrace both neighbours usually need party wall notices or agreement, so we talk to them early.
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 St Leonards-on-Sea?
In St Leonards-on-Sea, our guide for a terraced house rear extension is £2,300–£3,700 per square metre including VAT for a standard specification. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £31,000–£50,000 |
| 3 m wide × 6 m deep (18 m²) | £41,500–£66,500 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a terraced house rear extension in St Leonards-on-Sea?
Here is how the rules in England apply to a terraced house rear extension in St Leonards-on-Sea.
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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in St Leonards-on-Sea like to extend?
Commuter semis and detached houses make up much of St Leonards-on-Sea, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a terraced house rear extension in St Leonards-on-Sea 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.
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.
Terraced house rear extensions near St Leonards-on-Sea
Neighbouring places we cover include Hastings (1.5 miles) and Bexhill-on-Sea (3.3 miles).
- Terraced house rear extension in Hastings
- Terraced house rear extension in Bexhill-on-Sea
- Terraced house rear extension in Hailsham
- Terraced house rear extension in Eastbourne
- Terraced house rear extension in Seaford
Other work in St Leonards-on-Sea:
FAQ
Terraced house rear extension questions in St Leonards-on-Sea
How much does a terraced house rear extension cost in St Leonards-on-Sea?
As a guide, £2,300–£3,700 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £31,000–£50,000 at that rate. Your written price follows the survey.
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.
How do you keep the house clean?
Dust screens, floor protection and a single protected route through the house.
Do I need planning permission for a rear extension in St Leonards-on-Sea?
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.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
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.