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Extensions over a garage for homes in Lytham St Annes

Our design and build teams take on over-garage extensions in Lytham St Annes, from the first measured survey through planning and building control to the finished room.

  • Guide price in Lytham St AnnesFrom £22,500 inc VAT
  • PlanningHouseholder application needed
  • Build time12–18 weeks on site
  • Postcode districtsFY8
Detached house with a bedroom extension above the attached garage

Guide prices for Lytham St Annes

Prices below are for Lytham St Annes, using the North West England factor of ×0.95. They are guide ranges including VAT for the build only, not a quote.

Typical rates in Lytham St Annes: £1,710 to £3,230 per m² including VAT, depending on specification.

SizeEssentialStandardPremium
Over a single garage
12 m²
£22,500 – £28,000£23,500 – £31,000£30,500 – £39,000
Over a large single garage
16 m²
£27,000 – £33,500£31,500 – £41,500£41,000 – £52,000
Over a double garage
24 m²
£41,000 – £50,500£47,500 – £62,000£61,500 – £78,000

For a figure based on your own dimensions, use our guide-price tool.

Extensions in and around Lytham St Annes

Across FY8, we can visit, measure and advise. The same team covers Blackpool (6 miles), Poulton-le-Fylde (6 miles), Thornton-Cleveleys (9 miles), Preston (12 miles), all within easy reach.

Southport, in Merseyside, is roughly 7 miles from Lytham St Annes and also on our list. The North West has a high share of Victorian and Edwardian terraces with rear yards and outriggers, plus large areas of inter-war semis in the suburbs.

Planning rules that apply in Lytham St Annes

In England any side extension over one storey, including a room built over a side garage, needs a householder planning application. The fee is £548 from 1 April 2026 and councils aim to decide within 8 weeks.

The planning position for a specific Lytham St Annes address depends on its history and any designations, which is why we check it at the first visit.

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.

Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.

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

Is an over-garage extension right for your house?

  • Detached and link-detached houses with an attached garage
  • Families needing a bedroom without losing garden
  • Homes where the landing can connect to the new room

Our process, step by step

Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.

  1. Free site visit

    First, a site visit: we look at the house, garden, access and drains and listen to what you need.

  2. Design and approvals

    We produce the drawings and structural design, and manage the approvals so they are in place before work starts.

  3. Fixed written price

    We confirm the build price in writing, based on the approved drawings and the finishes you have chosen.

  4. Build and sign-off

    Work is carried out to the agreed programme, inspected by building control and signed off at the end.

Your questions about an over-garage extension in Lytham St Annes

How long does an over-garage extension take to build in Lytham St Annes?

On site, typically 12 to 18 weeks once approvals are in place. Before that, allow 8–14 weeks design and approvals.

Do you cover all of Lytham St Annes?

Yes. We cover Lytham St Annes and the surrounding parts of Lancashire. Site visits are free and there is no obligation.

Can I see a price before committing to anything?

Yes. The guide prices on this page are adjusted for Lytham St Annes, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.

Can I keep using the garage during the build?

Usually not for parking. The garage roof is removed and the space below is used for access and props for part of the build.

Does building over a garage need planning permission?

In England and the rest of the UK, adding a storey over a side garage almost always needs a planning application, because two-storey side extensions are outside permitted development.

Book a free site visit in Lytham St Annes

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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