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South YorkshireEngland

Builders in Doncaster

SK Developments is a design and build company taking on extensions, loft conversions, conversions, renovations and new homes in Doncaster and across South Yorkshire.

Single-storey extension in Doncaster

£1,800–£2,700 per m² inc VAT

Prices across Yorkshire and the Humber are typically 7% below the UK average for this kind of work, which is reflected in the range for Doncaster.

Book a free home visit

Tell us about your project. We reply to arrange a visit and a fixed quote.

Free home visit and measured survey
Fixed price for the agreed specification
Drawings, approvals and build in one contract
Building control sign-off arranged
England, Wales, Scotland and Northern Ireland

Building services in Doncaster

House extensions

Loft conversions

Garage, basement and barn conversions

New build homes

Renovations and structural work

Design and approvals

Guide prices in Doncaster

ProjectGuide range (inc VAT)
Single-storey extensions£1,800–£2,700 per m² of floor area
Double-storey extensions£1,550–£2,300 per m² of floor area (both floors)
Kitchen extensions£2,100–£3,150 per m² including a mid-range kitchen
Hip-to-gable loft conversions£51,000–£72,500 for a hip-to-gable with rear dormer
Structural alterations and knock-throughs£4,250–£8,750 for a typical knock-through with steel beam
Porches£6,000–£15,000 from a 3 m² porch to a small front extension

Prices across Yorkshire and the Humber are typically 7% below the UK average for this kind of work, which is reflected in the range for Doncaster.

Planning permission in Doncaster

In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.

Building regulations approval comes from the council’s building control service or a registered building control approver. The work is inspected at key stages, such as foundations, drainage and insulation, and a completion certificate is issued at the end.

About building in Doncaster

In Yorkshire, through-terraces and back-to-backs have particular constraints, while semis and detached houses suit larger extensions.

We work across Doncaster and neighbouring areas such as Bentley, Adwick le Street and South Elmsall. Postcodes we cover in Doncaster include DN1, DN2 and DN55. Doncaster has a population of around 110,000.

How it works

  1. 01

    Visit and measured survey

    A free visit to understand the project, check access and take measurements.

  2. 02

    Drawings and written quote

    We prepare the design and give you a written, itemised quote with inclusions and exclusions.

  3. 03

    Approvals in place

    We handle planning, building control and neighbour notices before work starts.

  4. 04

    Construction and completion

    We build, put right any snags and hand over the building control certificate.

Questions from homeowners in Doncaster

Is the home visit free?

Yes. The first visit to discuss your project and measure up for a quote is free, with no obligation.

How much does an extension cost in Doncaster?

A single-storey extension in Doncaster typically costs £1,800–£2,700 per m² of floor area, and a double-storey extension £1,550–£2,300 per m² of floor area (both floors), including VAT.

Do I need planning permission for an extension in Doncaster?

In England a single-storey rear extension is often permitted development: broadly up to 3 metres deep on a semi-detached or terraced house and 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres within 2 metres of a boundary, and covering no more than half the garden. The larger home extension scheme allows up to 6 or 8 metres if you notify the council first and neighbours have a chance to comment. In conservation areas, National Parks and National Landscapes the larger home extension route, side extensions and cladding are not permitted development. Flats and houses whose rights have been removed need a planning application, and listed buildings need listed building consent.

Do you work in Doncaster?

Yes. We take on extensions, loft conversions, conversions, renovations and new builds across Doncaster, including postcodes DN1, DN2 and DN55.

How much does a loft conversion cost in Doncaster?

A rear dormer loft conversion in Doncaster typically costs £44,500–£63,000 for a typical rear dormer with en-suite, including VAT.

Start with a free home visit

Call 0800 088 6248 or get an instant guide price online.

Call 0800 088 6248Get a guide price