Award-Winning Design & Build, Now Serving South East London
South East London offers some of the capital's best opportunities for homeowners looking to add space. Victorian terraces in Dulwich, Edwardian properties in Blackheath, interwar homes across Lewisham and Greenwich — property types that respond well to thoughtful extensions, loft conversions, and renovations.
LCCL Construction brings the same LABC Building Excellence Award-winning quality that has earned us over 200 reviews at 4.7/5 across North London. Our fully in-house team — architects, structural engineers, project managers, and builders — delivers a complete design and build service under one contract. No subcontractors, no coordination headaches, no finger-pointing between separate firms.
Why Choose LCCL for South East London
Based in Finchley N3, we serve South East London because our expertise with period properties and conservation area planning translates directly to the housing stock and planning contexts across SE postcodes. The construction techniques for extending a Victorian terrace in Dulwich are the same as those we apply daily in Islington and Crouch End.
Our Services
Design and build under one roof, Architecture, planning, construction, and finishing — managed by one team, from start to finish.
- HOUSE EXTENSIONS
House Extensions in South East London
South East London's mix of Victorian terraces, Edwardian semis, and larger detached properties creates varied extension opportunities. The terraces across Peckham, Camberwell, and New Cross suit the side return and rear extension combinations that transform cramped ground floors. The larger properties in Dulwich, Blackheath, and parts of Greenwich have plots generous enough for wraparound and double-storey additions.
Planning across South East London is managed primarily by Lewisham, Southwark, and Greenwich councils. Conservation areas in Dulwich Village, Blackheath, and parts of Greenwich require more sensitive design — our architects have the conservation area experience to navigate these contexts confidently.
Extension Costs in South East London
Rear Extensions — £45,000–£92,000. The most achievable extension type.
Side Return Infills — £38,000–£65,000. Transforms the ground floor of Victorian terraces.
Wraparound Extensions — £62,000–£112,000. Side and rear combined for maximum transformation.
Double-Storey Extensions — £92,000–£185,000. For properties with sufficient plot space.
What Is Included
All prices include: architecture, structural engineering, planning applications, all construction, project management, building control via LABC, and 10-year LABC warranty. All-inclusive quote. Call 020 8037 7332.
- LOFT CONVERSIONS
Loft Conversions in South East London
The Victorian and Edwardian properties across South East London have the steep roof pitches and generous ridge heights that make loft conversions one of the most effective ways to add space. Rear dormers are the most straightforward option, with most qualifying under permitted development outside conservation areas. The Edwardian semis in Blackheath and Lee suit hip-to-gable conversions. Mansard conversions deliver maximum space on terraced properties throughout the region.
Loft Conversion Costs in South East London
Rear Dormers — £45,000–£72,000. The most popular option across South East London.
Hip-to-Gable — £50,000–£78,000. Ideal for Edwardian semis in Blackheath and Lee.
Mansard Conversions — £62,000–£95,000+. Maximum space for terraced properties.
L-Shaped Dormers — £56,000–£85,000. For end-of-terrace properties combining rear and side elements.
What Is Included
All prices include: architecture, structural engineering, scaffolding, all construction, staircase, insulation, electrics, en-suite plumbing, building control via LABC, project management, and 10-year LABC warranty. Call 020 8037 7332.
- RENOVATIONS
Renovations in South East London
South East London's period properties often combine attractive original features with dated layouts and tired interiors. A well-planned renovation preserves the Victorian or Edwardian character — cornicing, fireplaces, tiled hallways, timber floors — while reconfiguring the layout, upgrading services, and installing modern kitchens and bathrooms.
LCCL delivers renovations at every scale: from targeted kitchen and bathroom refits to complete whole-house refurbishments. Structural reconfiguration, rewiring, replumbing, heating upgrades, and period feature restoration — all managed by one team under one contract.
Typical costs: kitchen renovation £25,000–£60,000, bathroom renovation £12,000–£28,000, structural reconfiguration £5,000–£15,000, whole-house refurbishment from £90,000 upward.
- ARCHITECTURE
In-House Architecture for South East London Properties
Our architects submit applications to Lewisham, Southwark, and Greenwich councils. Dulwich in particular — with its conservation areas, the Dulwich Estate's additional design controls, and Southwark Council's design expectations — requires architects who understand heritage-sensitive residential design. Our extensive conservation area experience across Camden, Islington, and RBKC translates directly to the South East London context.
Every project includes: measured survey, concept designs, 3D visualisations, construction drawings, planning applications to the correct authority, structural engineering, and building regulations via LABC. All included in your quote — no separate architect fees.
- LOCA PLANNING EXPERTISE
Planning Across South East London
Lewisham
London Borough of Lewisham has conservation areas in Blackheath, Lee, and Brockley with standard PD rights across most residential areas. Growing volume of householder applications as property values continue to rise.
Southwark
London Borough of Southwark has conservation areas in Dulwich Village, Camberwell Grove, and Peckham Rye. The Dulwich Estate imposes additional design controls beyond council planning requirements. Our architects manage both sets of approvals.
Greenwich
Royal Borough of Greenwich has conservation areas in Greenwich town centre, Blackheath, and Charlton. The Maritime Greenwich World Heritage Site affects some properties. Standard PD rights outside designated areas.
Typical Planning Timescales
All boroughs target 8-week decisions for householder applications. We handle the complete planning process for every project.
Permitted Development
Standard PD rights apply outside conservation areas across most South East London boroughs. Within conservation areas in Blackheath, Dulwich Village, and Greenwich town centre, rights are restricted and planning permission is required. LDCs recommended for all PD projects.
Building Control
All LCCL projects are managed through LABC building control. Inspections at each key stage ensure compliance with Building Regulations. At completion, you receive a building control completion certificate and optional 10-year LABC warranty.
Frequently Asked Questions
Do you work in South East London?
Yes. We serve Dulwich, Blackheath, Greenwich, Lewisham, Peckham, Camberwell, New Cross, Brockley, Lee, and surrounding SE postcode areas.
Why choose a North London company for South East London?
Because construction quality doesn't have a postcode. Our LABC Building Excellence Award, 200+ reviews at 4.7/5, and 20+ years of experience with period properties apply everywhere we work. The Victorian terraces in Peckham need the same structural expertise as those in Islington — and we've been delivering it for two decades.
How much does an extension cost in South East London?
Rear extensions £45,000–£92,000, side returns £38,000–£65,000, double-storey £92,000–£185,000. All prices include architecture, engineering, planning, construction, and 10-year LABC warranty.
How do I get started?
Call 020 8037 7332 or book a free consultation. We visit your property and provide honest advice. Free, no obligation.
What's included in your price?
Everything: architecture, structural engineering, planning applications, all construction, project management, building control via LABC, and 10-year LABC warranty. Transparent pricing. Final costs confirmed once designs are agreed.
Areas We Cover
Based in Finchley N3, serving London and Hertfordshire.
North London and Hertfordshire
Barnet | Finchley | Hendon | Muswell Hill | Edgware | Enfield | Borehamwood | Potters Bar | Watford | St Albans
Across London
Hampstead | St Johns Wood | Islington | Kensington & Chelsea | Fulham | Clapham | Richmond | Putney & Wandsworth | Crouch End | Stoke Newington | Highgate | Ealing | Notting Hill | Camden | Queens Park