Merseyside

Extending your home in Liverpool

Looking to extend your home in Liverpool? Start here: extension types, guide prices for Liverpool, the planning rules that apply and how a project runs.

Postcode districtsL1, L2, L3, L5, L69, L70
Price regionNorth West England (×0.95)
Planning rulesEngland
Site visitFree, no obligation

Get my guide price Call 0800 088 6341

Single-storey rear extension in matching brick with a roof lantern and sliding doors

Where we work near Liverpool

Across L1, L2, L3, L5, L69, L70, we can visit, measure and advise. Nearby, we also take on projects in Birkenhead (2 miles), Wallasey (4 miles), Litherland (4 miles), Bootle (4 miles), Bebington (4 miles). Just over the Cheshire border, Ellesmere Port is about 10 miles away.

Guide prices for Liverpool

Prices on this page use our North West England factor of ×0.95, include VAT at 20% and cover the build; your written price follows a survey and agreed drawings.

Extension type	Example size	Standard spec (inc VAT)
Kitchen extensions	20 m²	£39,500 – £50,500
Conservatory replacement extensions	14 m²	£28,500 – £37,000
Double-storey extensions	32 m²	£54,500 – £71,500
Orangery extensions	16 m²	£42,500 – £53,500
Side return extensions	11 m²	£25,000 – £31,500
Wraparound extensions	25 m²	£54,500 – £69,000
Extensions over a garage	12 m²	£23,500 – £31,000

Choosing the right extension in Liverpool

Across the North West, terraced houses with small rear yards suit compact rear and side return extensions, while suburban semis have room for more.

Depending on the plot, side return extensions and double-storey extensions are often the strongest options, with single-storey rear extensions worth considering where there is room.

Planning rules in Liverpool

In England a single-storey rear extension can usually go up to 3 m beyond the original rear wall of a semi-detached or terraced house, or 4 m on a detached house, without a planning application, provided it is no more than 4 m high, keeps eaves to 3 m within 2 m of a boundary and, with other buildings, covers no more than half the land around the original house. The larger home extension prior approval scheme raises those depths to 6 m and 8 m, with neighbours notified and a 42-day decision.

In England a single-storey side extension can be permitted development if it is no more than 4 m high and no wider than half the width of the original house. Two-storey side extensions, and any side extension on designated land such as a conservation area, need a householder planning application.

In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.

If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.

Applications are decided by the local planning authority (your district, borough or unitary council).

All extension types we build in Liverpool

Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
Once the layout is agreed, we deal with the council: planning permission or written confirmation that none is needed, plus building control.
Fixed written price
We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.

Questions about extensions in Liverpool

How much does an extension cost in Liverpool?

Using our North West England factor (×0.95), a standard-spec single-storey extension of 20 m² is a guide £38,500 to £49,500 including VAT, and a 32 m² two-storey extension £54,500 to £71,500. Your written price follows the survey.

Will my neighbours need to be told?

If you apply for planning or prior approval the council notifies them, and in England party wall notices may be needed for work near a shared boundary.

Do I need planning permission for an extension in Liverpool?

Not always. It depends on the size, position and your property's history. Many single-storey rear extensions in England are permitted development or can use prior approval.

Can I get a price before anyone visits?

Yes. This page shows guide prices adjusted for Liverpool, and the guide-price tool gives a range for your own size and finish in about a minute.

Who do I contract with?

Your contract is with S&K Property Investments and Improvement Ltd, which designs and manages the project and the build teams who carry it out.

Book a free site visit in Liverpool

We will measure up, check the planning position and give you honest guide figures.

Free, no-obligation site visit
Planning route checked before you spend on drawings
Written price once the design is agreed
Building control sign-off at the end

Prefer to talk? Call 0800 088 6341 or .

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