Loft conversions in Notting Hill.
Chelsea · SW3 · Chelsea terraced houseCompleted work, photograph
Roof rooms and mansards for Notting Hill terraces and villas. Drawn to the borough’s roof policy, built by one team.
A Notting Hill roof, read as part of the terrace.
- CD12, 2024
- The borough’s roof policy
- Rooflines
- Unimpaired terraces are protected
- W11
- Stucco terraces and paired villas
NU Projects is a design and build company in Fulham SW6, founded in 2010. We handle loft conversions, dormers and mansards in Notting Hill W11, under one contract. A loft runs £215 to £425 a sq ft, construction only. Call 020 7731 6841, and a budget estimate typically follows within seven days.
Notting Hill’s terraces and villas were built as groups, often with matching roofs.
Kensington and Chelsea judges a roof as part of that group.
Policy CD12 resists extra storeys where a terrace’s roofline is still unimpaired.
It allows them where infilling would reunite a roofline already broken by extensions.
So the first question is the street. Then the roof, then the rooms inside.
What the borough allows on a Notting Hill roof.
- Council
- Royal Borough of Kensington and Chelsea, under its Local Plan of July 2024.
- Policy CD12
- Roof alterations must be sympathetic to the building and its group.
- Unbroken rooflines
- Extra storeys are resisted where the roofline is unimpaired by extensions.
- Infill
- Where a terrace already has varied roof extensions, infilling can be permitted.
- Original dormers
- Where original dormers remain, the borough wants them conserved, not enlarged.
- Conservation areas
- Most of Notting Hill is conservation area. A dormer there needs planning.
Source: Kensington and Chelsea’s Local Plan 2024, Policies CD12 and CD13. Read on 6 October 2026. Policies change, so we read them again for your address.
Built in the same borough.
Chelsea·Terraced house
Chelsea terraced house
A terraced house in the same borough, renovated up to its roof terrace.
See the project
Chelsea·Townhouse
Chelsea townhouse, full refurbishment
A family home in the same borough, refurbished from top to bottom.
See the projectCompleted work, photographs
What loft conversion costs in Notting Hill.
£215 to £425a sq ft, construction only. Our loft band.
£140k to £220kA mansard loft. A project total, from our 2026 cost guide.
£90k to £140kA dormer loft. A project total, from our 2026 cost guide.
A mansard over a stucco terrace needs careful detail at the parapet.
The band is per square foot, construction only. The guide figures are project totals.
Fees, party wall costs, contingency and VAT sit outside both.
What Notting Hill owners ask about lofts.
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Further reading, from the journal
Can I add a mansard to my Notting Hill house?
Only where it suits the terrace. Policy CD12 judges the whole group.
An intact roofline usually means no.
A terrace already broken by roof additions may allow one, to reunite it.
Can I enlarge the dormers on my Notting Hill roof?
Original dormers are part of the architecture. The borough wants them kept.
Enlarged dormers also risk overheating, especially facing south.
What counts as an unimpaired roofline in Notting Hill?
A terrace or group with no later roof extensions breaking its line.
Kensington and Chelsea resists any extra storey on one.
We photograph the whole group before giving advice.
Can I put a roof terrace on a Notting Hill house?
Sometimes, behind a parapet and out of sight from the street.
Overlooking and privacy for neighbours are judged closely.
Railings and the access stair are part of the design question.
How much is a loft conversion in Notting Hill?
Our 2026 cost guide puts a mansard loft at £140k to £220k.
A dormer loft totals £90k to £140k.
Our loft band runs £215 to £425 a sq ft, construction only.
Tell us about your home in Notting Hill.
Your name and one way to reply are enough. It goes straight to the studio.
- Already have an architect or designer? We build to their design. Working with your designer
- An NDA on request, and your home is never published without your consent. How we work in confidence