Premium Builders in Greenwich
Bespoke luxury extensions, renovations and conversions for Greenwich's heritage Georgian terraces and Victorian villas, SE10.
Builders in Greenwich, SE10
Greenwich holds a unique position in London's architectural landscape as a UNESCO World Heritage Site, where magnificent Georgian terraces, stately Victorian villas, and the grandeur of the Royal Park converge to create one of the capital's most prestigious residential settings. The area's rich maritime heritage and impeccably preserved streetscapes attract homeowners of exceptional taste who seek construction partners capable of matching the area's distinguished character. Alstruct Ltd brings heritage sensitivity, luxury craftsmanship, and meticulous project management to every Greenwich commission.
From the elegant Georgian townhouses of Crooms Hill and Royal Hill to the substantial Victorian properties along Maze Hill and Westcombe Park, SE10 offers an extraordinary range of period homes with outstanding potential for bespoke enhancement. Our team combines deep knowledge of traditional construction methods — including lime rendering, heritage joinery, and period-appropriate masonry — with contemporary design innovation to deliver transformations that are both respectful and remarkable. Whether you envision a discreetly modern rear extension behind a Georgian facade or a luxurious loft conversion within a Victorian roofscape, Alstruct delivers results of uncompromising quality.
With Greenwich station on the DLR providing swift access to Canary Wharf and the City, and the area's cultural riches including the Old Royal Naval College and National Maritime Museum, Greenwich attracts discerning professionals who appreciate both heritage and convenience. Alstruct's design team checks Greenwich Council's heritage planning policies and the World Heritage Site buffer zone requirements before a design is fixed.
Why Choose Alstruct in Greenwich?
- Published projects on Victorian terraces and 1930s semi-detached houses
- Expert navigation of World Heritage Site and conservation area planning requirements
- CHAS Elite, Constructionline Gold & FMB certified for absolute quality assurance
- Traditional craftsmanship combined with contemporary design excellence
- Period-appropriate materials, specified with your architect or conservation officer
- Dedicated project manager ensuring seamless communication and delivery
- Detailed, transparent quotations with no hidden costs
- Published case studies with scope, programme and budget
Luxury Construction Services in Greenwich
House Extensions Greenwich
Heritage-sensitive rear and side extensions that complement Greenwich's Georgian and Victorian architecture with discreet contemporary luxury.
Learn more →Loft Conversions Greenwich
Premium loft conversions sensitively designed to enhance Greenwich's period roofscapes while creating exceptional additional living space.
Learn more →Home Renovations Greenwich
Meticulous whole-house renovations that restore Greenwich's heritage properties to their former glory whilst introducing modern luxury throughout.
Learn more →Basement Conversions Greenwich
Expert basement excavation creating bespoke subterranean living spaces beneath Greenwich's Georgian townhouses and Victorian villas.
Learn more →Groundworks Greenwich
Precision foundations, underpinning and drainage solutions for luxury construction projects across SE10's heritage landscape.
Learn more →Hard Landscaping Greenwich
Elegant garden terracing, heritage-style paving, period-appropriate boundary walls and refined outdoor spaces for Greenwich homes.
Learn more →House and kitchen extensions in Greenwich
Greenwich has Georgian and Victorian terraces in West Greenwich and the Ashburnham Triangle, Victorian houses towards Maze Hill and Westcombe Park, and Edwardian terraces in East Greenwich. Rear and side-return kitchen extensions are the common Greenwich projects; in the Ashburnham Triangle and West Greenwich the design must work with the conservation area.
As a guide, a well-built single-storey rear or side-return extension in Greenwich costs around £2,500–£4,000 per m² including structure, glazing and finishes, so a typical 25–30 m² kitchen extension lands between £75,000 and £120,000. Our house extension cost guide explains what moves the price. West Greenwich, Ashburnham Triangle and Westcombe Park are conservation areas where Greenwich Council expects rear-only roof changes and traditional materials. We confirm permitted development rights at the first visit and handle any application to Greenwich Council through our design team.
Planning a kitchen extension? See our kitchen extensions page for layouts, glazing and costs.
Loft conversions in Greenwich
Greenwich lofts are mostly rear dormers and mansards on the Victorian terraces; the Georgian houses have limited roof space, so a survey comes first.
In London a Velux conversion costs £25,000–£45,000, a dormer loft with a bedroom and en-suite £45,000–£75,000 and a mansard £60,000–£100,000+; our loft conversion cost guide sets out what is included. We survey the roof structure, head height and stair position before we quote a Greenwich loft, so the figure reflects the actual roof rather than an assumption.
Renovations and refurbishment in Greenwich
Greenwich renovations are often period restorations of Georgian and Victorian houses combined with modern kitchens and bathrooms. Typical Greenwich refurbishments include structural openings with steel beams, new kitchens and bathrooms, rewiring, heating and period repairs such as sash windows, cornices and floors. Our Victorian terrace renovation cost guide gives realistic budgets, and every Greenwich project runs on a JCT contract with a written specification and our 10-year workmanship warranty.
Guides for homes in Greenwich
For the Victorian and Edwardian terraces that make up much of Greenwich, our most useful guides are side return extension costs, dormer loft conversion costs, party wall costs, removing a load-bearing wall and the stages of building an extension.
Planning approvals in Greenwich
Greenwich Council approved 77.5% of householder planning applications decided between September 2025 and August 2026, against a London average of 85.8%; a typical decision took about 8.0 weeks from validation. Extensions were approved 72.9% of the time.
See how every London borough compares, including loft and extension approval rates, in our 2026 London planning approvals study.
Alstruct projects near Greenwich
Limehouse Cottage, E14
Underpinning, ground and first-floor extensions and a full renovation with bespoke joinery.
View project →Bow Victorian Terrace, E3
Victorian terrace: ground-floor lowering, underpinning, flat-roof extension and large roof glazing.
View project →Stratford Twin Terraces, E15
Zinc-clad loft conversions, kitchens, bathrooms and structural works on two Victorian terraces.
View project →The projects above are our nearest published work to Greenwich, the closest about 2.5 miles away. We work across every London borough from our office in South Woodford, E18, and regularly take on projects further out. See all completed projects →
Common questions about building in Greenwich
Do I need planning permission for an extension in Greenwich?
Houses in Greenwich (not flats or maisonettes) keep national permitted development rights for a single-storey rear extension of 3m attached or 4m detached, up to 6m or 8m through prior approval, and for most rear dormers (40 cubic metres on a terrace, 50 elsewhere). Royal Greenwich's conservation areas include West Greenwich, Ashburnham Triangle, East Greenwich, Greenwich Park and Westcombe Park. A conservation area keeps the single-storey rear right but removes rights for side extensions, two-storey rear extensions, cladding and roof additions. On listed Ashburnham Triangle addresses an Article 4 direction also controls extensions, windows, doors, roofs and porches. West and East Greenwich have directions too.
What does Greenwich Council expect for loft conversions in Greenwich?
The Royal Greenwich Urban Design Guide SPD, adopted in October 2023, asks for dormers generally set 0.5m below the ridge, 0.5m in from party walls and 0.5m above the eaves, and converting a hipped roof to a flat gable end is generally not supported. On historic buildings, dormers and other roof extensions will only be considered on the rear slope and should follow the historic style. For basements, the guide expects a Basement Impact Assessment and may not support lightwells taking more than half the front or rear garden.
What does a side return extension or dormer loft cost in Greenwich?
For the Victorian and Edwardian terraces of East Greenwich and around Maze Hill, a side return extension at mid to high specification is typically £65,000–£130,000 including VAT; our side return extension cost guide explains what drives the figure. A rear dormer loft conversion is £45,000–£75,000 and an L-shaped dormer £55,000–£85,000, both including VAT, with the breakdown in our dormer loft conversion cost guide. The final price depends on the structure, glazing and finish you choose.
Which Alstruct projects are nearest to Greenwich?
Our nearest published projects are Limehouse Cottage, E14, about 2.5 miles away: underpinning, ground and first-floor extensions and a full renovation with bespoke joinery; Bow Victorian Terrace, E3, about 3.2 miles away: a Victorian terrace with ground-floor lowering, underpinning, a flat-roof extension and large roof glazing; and Stratford Twin Terraces, E15, about 4.0 miles away: zinc-clad loft conversions, kitchens, bathrooms and structural works on two Victorian terraces.
Which parts of Greenwich do you cover?
We cover SE10, including West Greenwich, the Ashburnham Triangle, East Greenwich, Maze Hill and Westcombe Park. Planning across the area is handled by the Royal Borough of Greenwich. We work from our office in South Woodford, E18, about 8 miles away, and also cover nearby Blackheath, Lewisham and Peckham.
Nearby areas we cover
Alstruct works across every London borough. Here are areas close to Greenwich with dedicated local pages: