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Worksop over-garage extensions, designed and built

Thinking about an over-garage extension for your Worksop home? Start with a free site visit: we measure up, check what the council will allow and give you honest guide figures on the day.

  • Guide price in WorksopFrom £22,500 inc VAT
  • PlanningHouseholder application needed
  • Build time12–18 weeks on site
  • Postcode districtsS80, S81
Detached house with a bedroom extension above the attached garage

Is an over-garage extension right for your house?

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

Fitting the new room to the existing landing is the planning puzzle inside the house. We design the connection first, then the roof, so the extension does not end up with awkward steps or a corridor through a bedroom.

How much does an over-garage extension cost in Worksop?

These guide figures apply our East Midlands adjustment (×0.95) to national rates. They include VAT at 20% and cover the build itself; design and council fees are listed separately.

Typical rates in Worksop: £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

Want a range for your exact size? The guide-price tool takes about a minute.

Local to Worksop

We cover Worksop and the postcode districts S80, S81. Neighbouring towns we cover include Retford (8 miles), Mansfield Woodhouse (10 miles), Mansfield (12 miles), Sutton-in-Ashfield (13 miles).

For homes towards South Yorkshire, Dinnington is around 5 miles away. Homes across the East Midlands often have usable side land or a driveway beside the house, which opens up side and wraparound options.

Do I need planning permission in Worksop?

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.

Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.

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.

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).

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

    A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.

  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

    Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.

Your questions about an over-garage extension in Worksop

Do I need building regulations approval in Worksop?

Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.

Do you cover all of Worksop?

Yes. We cover Worksop and the surrounding parts of Nottinghamshire. 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 Worksop, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.

How much does a room over a garage cost?

Our guide range is about £1,710 to £3,230 per m² including VAT. A single-garage room of about 12 m² usually costs £23,500 to £31,000 at standard spec, more if the garage needs rebuilding.

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.

Book a free site visit in Worksop

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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