Rear extension design, approvals and build across the UKCall 0800 088 6341 · Online guide price
Rear Extensionsrear-extensions.co.uk 0800 088 6341 Get a guide price

Southport, Merseyside

Bungalow rear extension in Southport

For homes in Southport, a bungalow rear extension is often the simplest way to gain space without moving. Single-storey rear extensions that keep everything on one level. We take it from survey to completion certificate.

Southport and its postcode districts L22, L30, L37 and L38 are part of our Merseyside coverage. For bungalows in Merseyside, 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 Southport?

Guide prices for a bungalow rear extension in Southport start from our North West England rate of £1,740–£2,820 per square metre, including VAT. North West prices sit below our West Midlands baseline; access on terraced streets is the main variable.

Bungalow rear extension prices in Southport
SizeGuide price inc VAT
3 m wide × 4 m deep (12 m²)£21,000–£34,000
4 m wide × 6 m deep (24 m²)£41,500–£67,500

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 bungalow rear extension in Southport?

Planning for a bungalow rear extension in Southport follows the English householder rules.

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.

England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.

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 Southport like to extend?

Southport 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 bungalow rear extension in Southport comes together

  1. Free site visit

    We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.

  2. Drawings and budget

    Floor plans and elevations for the options, each with a guide price.

  3. Paperwork handled

    Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.

  4. 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.

Bungalow rear extensions near Southport

Close by, we work in Formby, about 6.5 miles away, and Lytham St Annes, about 6.7 miles away.

Other work in Southport:

All rear extensions in Southport

FAQ

Bungalow rear extension questions in Southport

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.

Is the site visit in Southport free?

Yes. We visit, measure up and talk through the options with no cost and no obligation.

How deep can I extend?

The same limits as a house: 3 or 4 metres in England, more with prior approval.

How much does a bungalow rear extension cost in Southport?

As a guide, £1,740–£2,820 per square metre including VAT for a standard specification. For example, 3 m wide × 4 m deep (12 m²): about £21,000–£34,000 at that rate. Your written price follows the survey.

Do you handle building control in Southport?

Yes. We apply to the council or a registered building control approver and hand over the completion certificate.

Do I need planning permission for a rear extension in Southport?

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.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

CallGuide price