Southend-on-Sea, Essex
Bungalow rear extension in Southend-on-Sea
We plan and build rear extensions for bungalows for homeowners in Southend-on-Sea. Single-storey rear extensions that keep everything on one level. Start with a free site visit, then a written price once the design is agreed.
Southend-on-Sea and its postcode districts SS0, SS1, SS2 and SS3 are part of our Essex coverage. For bungalows in Essex, a rear extension is the usual way to add space without adding stairs.
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 bungalow rear extension cost in Southend-on-Sea?
A bungalow rear extension in Southend-on-Sea is priced at £1,960–£3,180 per square metre including VAT as a guide, before kitchen fit-out and fees. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £23,500–£38,000 |
| 4 m wide × 6 m deep (24 m²) | £47,000–£76,500 |
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 bungalow rear extension in Southend-on-Sea?
Here is how the rules in England apply to a bungalow rear extension in Southend-on-Sea.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
If 3 or 4 metres is not enough, England's prior approval route allows 6 metres on a terraced or semi-detached house and 8 metres on a detached house for a single-storey rear extension. Neighbours are consulted, the council decides within 42 days, and the fee is £249, rising to £310 from 8 December 2026.
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 Southend-on-Sea like to extend?
Post-war semis and newer estates are typical of Southend-on-Sea, and many have room for a full-width extension. Shrinkable clay is common in the East of England, so foundations near trees and hedges are designed to NHBC-style depth guidance.
How a bungalow rear extension in Southend-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.
Bungalow rear extensions near Southend-on-Sea
Neighbouring places we cover include Rochford (3.1 miles) and Hadleigh (4.6 miles).
- Bungalow rear extension in Rochford
- Bungalow rear extension in Hadleigh
- Bungalow rear extension in Rayleigh
- Bungalow rear extension in Canvey Island
- Bungalow rear extension in South Benfleet
Other work in Southend-on-Sea:
FAQ
Bungalow rear extension questions in Southend-on-Sea
What postcode areas do you cover around Southend-on-Sea?
Including SS0, SS1, SS2, SS3 and SS9, and the surrounding Essex area.
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.
Is a bungalow extension cheaper?
The rates are similar per square metre; roof work can add a little.
Do you handle building control in Southend-on-Sea?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
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 much does a bungalow rear extension cost in Southend-on-Sea?
As a guide, £1,960–£3,180 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £23,500–£38,000 at that rate. Your written price follows the survey.