House Extensions in Lewisham
Rear and side-return extensions across the borough of Lewisham, from a team just up the road in Blackheath.
Lewisham's Victorian and Edwardian terraces — in Lee, Hither Green, Brockley and Ladywell — are ideal for side-return and rear extensions that create a larger kitchen and family room.
We're based in Blackheath, on Lewisham's doorstep, so we can visit quickly and manage the job closely.
Recent work nearby in SE London
St John's Park Residential Project
A full residential refurbishment of a family home in St John's Park. Heath Projects reconfigured the internal layout, upgraded services throughout and delivered bespoke joinery, new bathrooms and a refined material palette of Venetian plaster, natural oak and limestone. Steel-framed glazing and considered landscaping connect the interior with the garden, producing a warm, contemporary home tailored to how the family actually lives.
Humber Road Project
Side extension and complete refit of the back of the house at ground floor level and renewal of a 1st floor bathroom. Works included new steelwork, new concrete floors incorporating underfloor heating, new party wall to neighbouring property, rooflights and complete reneal of all mechanical and electrical services.
Kidbrooke Gardens Project
Major refurbishment of substantial family home including a new two storey rear extension within a conservation area.
Westcombe Park Road Project
Loft conversion project to create new bedroom and bathroom in previous loft space within Blackheath conservation area.
Hardy Road Project
Extensive strip out of 4,500ft family home in phases. New ground floor rear extension and complete refit of house including new roof, new windows complete renewal of mechanical and electrical services and total refit of house while retaining original features of the property
Planning and conservation in Lewisham
- Lewisham has many conservation areas, and several — such as Brockley — have Article 4 directions that remove some permitted development rights.
- Outside those areas, many single-storey rear extensions can be built under permitted development or the prior approval scheme.
- Side-return extensions on terraces almost always need party wall notices.
- We check your planning route at the site visit, before you pay for drawings.
General guidance only — your council has the final say, and we confirm the route for your house at the site visit.
Timeline
- 1
Free site visit
We look at the house, talk through what you want and check the planning route.
- 2
Detailed costing
A clear cost plan and drawings, so you know where the money goes.
- 3
Approvals
Planning or permitted development, building control and party wall notices.
- 4
Around 10 weeks on site
A typical project, run by one contracts manager and one site manager.
- 5
Handover
Snagging closed out, certificates issued, house ready to use.
What our clients say
Heath Projects’ overall Google rating: 5/5 from 9 reviews
katy S.
2 months ago
Really happy with Heath Projects! Great service, lovely guys and they did a brilliant job. Would definitely recommend!
Fin H.
2 months ago
We had a great experience with this company adding an extension and refurbishing our conservatory. The staff were good, knowledgeable and communicated the whole process. Would definitely recommend...
Harriet B.
2 months ago
Heath Projects were professional and the work was completed to a very high standard.
Frequently Asked Questions
Other local services
- Loft Conversions in Blackheath
- Loft Conversions in Greenwich
- House Extensions in Blackheath
- House Extensions in Bromley
- Builders in Blackheath
- All residential services
Free site visit and detailed costing
Tell us about your house in Lewisham and what you'd like to do — we'll come back with a clear plan and cost.
Start Your Project