Covering Monmouth
We work in Monmouth (NP25) and the places around it, including Ross-on-Wye, Chepstow and Abergavenny.
Homes in Gwent
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 goes into 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.
- Design drawings and structural calculations
- New floor joists, steels and staircase
- Dormer or rooflights, insulation and plasterboard
What will a loft conversion cost?
What loft conversions typically cost. These are guide ranges; the written quote for your house replaces them.
| 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 |
Do you need permission for a loft conversion in Monmouth?
In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.
Wales has its own loft and roof permitted development rules.
What should I think about before starting?
- The new staircase usually takes space from the landing or a bedroom below.
- Fire safety rules can mean new fire doors on the floors below.
How does the project run?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- Free site visit. We measure up, look at access, drains and the structure, and talk through options and budget.
- Price and paperwork. The design is priced line by line, and we submit the planning and building control applications.
- Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.
Questions about a loft conversion in Monmouth
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.
Can you visit a house in Monmouth to quote?
Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.
Loft conversions near Monmouth
- Loft conversions in Ross-on-Wye
- Loft conversions in Chepstow
- Loft conversions in Abergavenny
- Loft conversions in Pontypool
Learn more about loft conversions, or see every project we cover in Monmouth.

