
Builders in NW3
Hampstead & Belsize Park · North West London
Building and renovation in NW3
NW3 covers Hampstead, Belsize Park, Swiss Cottage, South End Green, Hampstead Village. Georgian houses in the Village, large Victorian villas in Belsize Park, purpose-built mansion blocks and substantial detached properties on the hillside streets.
Planning and consent in NW3
Camden conservation areas cover nearly all of NW3, with many listed buildings in the Village. Slopes, mature trees and root protection areas heavily influence what basement or rear scheme is achievable.
Access and site logistics
Steep, narrow lanes with limited turning space, tree protection requirements and permit parking. Plant is sized to the access rather than the programme, and craneage is planned early.
What we are usually asked for here
- Basement excavation, pools and leisure levels on villa plots
- Whole-house renovation and restoration of Georgian and Victorian stock
- Rear extensions and garden-level remodelling on sloping sites
- Mansion-flat refurbishment under building-management rules
We survey the property before pricing, confirm the constraints that apply to your specific address rather than the postcode, and issue a fixed price against a written scope. One site manager runs the trades from first fix to snagging.
District at a glance
- Postcode district
- NW3
- Main localities
- Hampstead, Belsize Park, Swiss Cottage
- London region
- North West London
- Response time
- Site visit typically within 5 working days
Services we provide in NW3
Loft conversions
Turn dead roof space into the best room in the house
Read more →House extensions
Rear, side-return, wrap-around and double-storey extensions
Read more →Home renovations
Whole-house refurbishment, stripped back and rebuilt properly
Read more →Kitchen renovations
Bespoke and designer kitchens, installed by one team
Read more →Bathroom renovations
Waterproofed properly, finished beautifully
Read more →Basement conversions
Dig-outs, tanking and habitable lower-ground space
Read more →Indoor swimming pools
Tanked, heated and environmentally controlled pool halls
Read more →Outdoor swimming pools
Concrete tanks, heating, covers and landscaped surrounds
Read more →Garden design
Terraces, planting, lighting and outdoor rooms
Read more →Landscaping
Hard and soft landscaping, levels, walls and drainage
Read more →Roofing
Slate, tile, flat roofs, leadwork and full re-covers
Read more →Commercial construction
Refurbishment and fit-out delivered around your trading hours
Read more →Shop fit outs
Shopfronts, signage and retail fit-out that opens on time
Read more →Plumbing
Full re-pipes, bathroom services, boilers and hot water systems
Read more →Electrical
Rewires, consumer units, lighting design and certification
Read more →Carpentry
Bespoke joinery, wardrobes, staircases and structural carpentry
Read more →Area guides inside NW3
NW3 portfolio examples
Illustrative concept case studies — not records of specific client contracts.
NW3Bathroom Renovations · 2019
Hampstead Bathroom Renovation
A spa-style bathroom with large format porcelain, walk-in shower and underfloor heating. Sample case study set in Hampstead (NW3).
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NW3Commercial Refurbishments · 2025
Hampstead Commercial Refurbishment
A commercial strip-out and refit delivered in phases around trading hours. Sample case study set in Hampstead (NW3).
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NW3Heating · 2024
Hampstead Heating
New heating system with zoned controls, upgraded emitters and full commissioning. Sample case study set in Hampstead (NW3).
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NW3Indoor Swimming Pools · 2024
Hampstead Indoor Pool
Stone-lined basement pool with rooflight over the tank, marble surround and full plant room. Sample case study set in Hampstead (NW3).
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NW3Bathroom Renovations · 2024
Hampstead Green Marble Period Bathroom
Restored Victorian bathroom with green marble panelling, a cast-iron roll top on brass feet and reinstated parquet. Sample luxury bathroom case study set in Hampstead (NW3).
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NW3Garden Design · 2025
Hampstead Broken Steps to Sculpted Stone Stair
Collapsing garden steps rebuilt as a wide sculpted stone stair with cantilevered treads, step lighting and structural planting either side. Garden transformation case study in Hampstead (NW3), photographed for David Delavega's book Gardens, Terraces & Beyond.
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