Hastings, East Sussex
Rear extension planning drawings in Hastings
Measured survey, design options, planning drawings and the application, handled for you. We design, get the approvals for and build rear extensions in Hastings and the surrounding area, with one contract from the first survey to building control sign-off.
Hastings sits in East Sussex, with postcode districts including TN34, TN35, TN37 and TN38. Rear extension applications in East Sussex are householder applications, which councils aim to decide within about eight weeks.
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 Hastings?
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. 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 rear extension in Hastings?
The planning route for a rear extension in Hastings is set by England's householder rules and your council.
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. 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 Hastings like to extend?
Commuter semis and detached houses make up much of Hastings, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a rear extension in Hastings 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.
Rear extension planning drawings near Hastings
Close by, we work in St Leonards-on-Sea, about 1.5 miles away, and Bexhill-on-Sea, about 4.8 miles away.
- Rear extension planning drawings in St Leonards-on-Sea
- Rear extension planning drawings in Bexhill-on-Sea
- Rear extension planning drawings in Hailsham
- Rear extension planning drawings in Eastbourne
- Rear extension planning drawings in Seaford
Other work in Hastings:
FAQ
Rear extension planning drawings questions in Hastings
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.
Do you handle building control in Hastings?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Do neighbours get consulted?
Yes for a full application: the council writes to them or puts up a site notice.
Is the site visit in Hastings free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do I need planning permission for a rear extension in Hastings?
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.
How long does a rear extension take to build in Hastings?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.