Covering Whitchurch, South Glamorgan
Whitchurch, South Glamorgan is about 3 miles north-west of Cardiff. We also cover Cardiff (3 miles to the south-east), Caerphilly and Penarth.
Homes in South Glamorgan
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What is a loft conversion?
A loft conversion turns an unused roof space into habitable rooms, usually a bedroom with an en-suite, by strengthening the floor, adding a staircase, insulating the roof and putting in windows. The type you need depends on the roof: rooflight, dormer, hip-to-gable or mansard.
- Loft survey and head-height check
- Design drawings and structural calculations
- Dormer or rooflights, insulation and plasterboard
What is the guide price for a loft conversion in Whitchurch, South Glamorgan?
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 Whitchurch, South Glamorgan?
Welsh projects need planning clearance from the council under Welsh rules, building regulations approval under the Welsh approved documents, and party wall notices where the work affects a neighbour’s wall or foundations.
Wales has its own loft and roof permitted development rules.
What can change the price or programme?
- Head height under the ridge decides whether a conversion is practical.
- Fire safety rules can mean new fire doors on the floors below.
From first call to completion
- Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
- 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.
What people ask before starting
How much does a loft conversion cost?
Roughly £30,000 to £45,000 for a rooflight conversion, £50,000 to £90,000 for a dormer, £60,000 to £95,000 for a hip-to-gable and £65,000 to £110,000 for a mansard, including VAT.
Is my loft suitable for conversion?
If there is about 2.2 m or more from the top of the ceiling joists to the underside of the ridge, it usually is. We check this at the free site visit.
Who deals with the council for a project in Whitchurch, South Glamorgan?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Loft conversions near Whitchurch, South Glamorgan
- Loft conversions in Cardiff
- Loft conversions in Caerphilly
- Loft conversions in Penarth
- Loft conversions in Pontypridd
Learn more about loft conversions, or see every project we cover in Whitchurch.

