What is a rooflight loft conversion?
A rooflight loft conversion (sometimes called a roof window conversion) keeps the existing roof shape and adds roof windows that sit flush with the slope. The floor is strengthened, a staircase is added and the space is insulated and finished.
How much does a rooflight loft conversion cost in Kettering?
In Kettering, a rooflight loft conversion typically costs £28,500–£43,000 for a typical rooflight conversion, including VAT at 20% (standard rate). Prices across the East Midlands are typically 5% below the UK average for this kind of work, which is reflected in the range for Kettering. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A typical rooflight conversion | £28,500–£43,000 |
| Higher specification | £43,000–£54,000 |
Your quote will depend mainly on:
- Bathroom or not
- Storage and finishes
- Fire safety upgrades
- Floor and roof strengthening
A guide range is only a starting point: the guide price tool gives an instant figure for your size, and a free survey turns it into a fixed quote.
Do you need planning permission for a rooflight loft conversion in Kettering?
Approvals for a rooflight loft conversion in Kettering follow the rules for England. In England roof windows are permitted development if they project no more than 15 centimetres from the roof slope and side-facing windows are obscure-glazed. Listed buildings need 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.
At the survey we check your house’s planning history and any restrictions, and tell you which route applies.
What we handle
What we take care of:
- Floor joists and any steel beams
- Staircase and fire-safe escape route
- Electrics, heating and plastering
- Drawings and structural calculations
- Insulation between and under rafters
- Roof windows installed
How long does it take?
Build time is typically 4 to 6 weeks on site. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.
Building in Kettering
In the East Midlands, many estates built since the 1960s have integral garages that convert well into a study or bedroom.
From NN16 outwards, we take on projects throughout Kettering and the surrounding parts of Northamptonshire.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Drawings and written quote
We prepare the design and give you a written, itemised quote with inclusions and exclusions.
- 03
Approvals
Planning or permitted development confirmation, building regulations and any party wall matters.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about rooflight loft conversions in Kettering
Can I have a bathroom?
Yes, where there is enough head height at the shower or bath position.
Do you build rooflight loft conversions in Kettering?
Yes. We build rooflight loft conversions across Kettering, including postcodes NN16. Every project starts with a free home visit.
How much does a rooflight loft conversion cost in Kettering?
In Kettering, a rooflight loft conversion typically costs £28,500–£43,000 for a typical rooflight conversion, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.
What about fire safety?
The same escape rules apply as for any loft conversion, so a protected stairway and smoke alarms are typically needed.
How long does it take?
Usually 4 to 6 weeks on site.