Covering Doncaster
Our coverage around Doncaster (DN1, DN2, DN55) also includes Bentley (1 miles to the north-west) and Rotherham.
Homes in Yorkshire and the Humber
Stone-built terraces are typical of many West Yorkshire towns, while red brick dominates in Hull and much of South Yorkshire, so matching materials is a big part of designing an extension here.
What is a loft conversion?
We start with the head height. You need roughly 2.2 m or more from the top of the ceiling joists to the underside of the ridge for a conversion to work without raising the roof. From there we design the staircase position, the type of conversion and the en-suite, and manage the whole build including fire safety and building control.
- Loft survey and head-height check
- New floor joists, steels and staircase
- En-suite, electrics, heating and fire safety upgrades
What is the guide price for a loft conversion in Doncaster?
Use these ranges to budget for loft conversions; the survey turns them into a fixed price for the agreed specification.
| Loft conversions | Guide price incl. VAT |
|---|---|
| Rooflight conversion | £30,000 to £45,000 |
| Dormer conversion | £50,000 to £90,000 |
| Hip-to-gable with dormer | £60,000 to £95,000 |
| Mansard conversion | £65,000 to £110,000 |
How is a loft conversion approved in Doncaster?
Projects in England go through two separate checks. Planning (or confirmation that the work is permitted development) comes from the district, borough or unitary council, and building regulations approval comes from the council’s building control team or a registered building control approver. Where work touches a shared wall or digs near a neighbour’s foundations, the Party Wall etc. Act 1996 applies.
In England many loft conversions are permitted development: the extra roof volume must stay within 40 m³ on a terraced house or 50 m³ on a semi or detached house, nothing can sit higher than the existing ridge, no dormer can face a road on the main elevation, and side windows must be obscure-glazed and non-opening below 1.7 m.
What can change the price or programme?
- The new staircase usually takes space from the landing or a bedroom below.
- Party wall notices are often needed for steels bearing on a shared wall.
How does the project run?
- Tell us about the project. Call, use the guide price tool or send the form with a few photos and a postcode.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- Construction and completion. One site lead co-ordinates every trade through to the building control certificate.
Loft conversions: common questions
How long does a loft conversion take?
Usually 6 to 14 weeks on site depending on the type.
Can we live at home during a loft conversion?
Yes. Most of the work is done from scaffolding until the staircase goes in near the end.
Who deals with the council for a project in Doncaster?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Loft conversions near Doncaster
- Loft conversions in Bentley
- Loft conversions in Rotherham
- Loft conversions in Pontefract
- Loft conversions in Royston
Learn more about loft conversions, or see every project we cover in Doncaster.

