Kitchen Extension Builders in Woolwich (SE18)
Professional kitchen extension builders in Woolwich, South East London.
Why Choose All Well for Kitchen Extensions in Woolwich?
Woolwich is changing fast, and the Victorian terraces behind the main road are where the value is. These houses are well-built but many haven't been updated in decades. A kitchen extension opens up the ground floor and brings the property into the 21st century — bifold doors, an island, proper lighting, and a room that connects to the garden. With the Elizabeth Line station driving up property values, investing in an extension now makes good financial sense as well as good living sense.
Every project comes with a fixed-price contract, single project manager, and full certification including Building Control sign-off.
Kitchen Extensions for Woolwich Properties
Woolwich is known for its victorian terraces, new-build apartments, crossrail developments. Our kitchen extensions services are tailored to these property types, ensuring results that complement the character of your home.
Postcodes we cover: SE18
Kitchen Extensions Tip for Woolwich Homeowners
Greenwich Council covers Woolwich. The Royal Arsenal conservation area has specific requirements, but most residential streets further from the river are outside it and standard permitted development applies. The Thames gravel subsoil in SE18 generally provides stable foundations, but properties on reclaimed land near the river may need additional ground investigation. If your property is near the Crossrail development, check whether any construction easements affect your rear garden before designing an extension.
Three Woolwich kitchen extension patterns
Three patterns cover most of what we build in SE18. Single-storey rear extension on a Victorian terrace is the most common Woolwich project. The Victorian terraces along Plumstead Road, Woolwich New Road, Herbert Road, and the streets behind the town centre have a dark galley kitchen at the back, often with original cast-iron range fittings still visible behind layers of paint. We extend 3-4 metres into the rear garden, take out the load-bearing wall between the kitchen and the dining room with a 152x89 UC steel beam, and finish with bifolds across the new rear elevation. Cost is £45,000-£75,000 including foundations on Woolwich's mixed Thames gravel and London Clay (typically 1.0-1.2 metres on standard sites, deeper on reclaimed land near the river), structural steel, glazing, electrics, plumbing, and finishes. Build time 10-14 weeks. Permitted development under Class A covers the standard 3-metre projection. Wraparound extension on a wider terrace is the second pattern, common on the Edwardian terraces around Plumstead Common where some properties have side returns of 1.0-1.4 metres. Combines a side return infill with a rear projection. Cost is £55,000-£85,000. Build time 12-16 weeks. Party wall agreement with the neighbouring property is required. Crossrail-uplift renovation plus extension is the third pattern, common with investor buyers and first-time owners who picked up the property at lower pre-Elizabeth-Line prices. Combines a kitchen extension with full rewire, replumb, lead pipe replacement, and decoration. Cost is £100,000-£170,000 for the combined project rather than running them as two separate phases. Build time 16-22 weeks. Significant economies vs running the extension and renovation separately: typically 10-15% cost saving and 4-8 weeks shorter total programme.
Thames riverside flood risk, Royal Arsenal conservation, and Crossrail uplift
Three Woolwich-specific factors affect kitchen extensions. Thames flood risk and reclaimed land. Woolwich properties within 200-300 metres of the Thames or in the lower-lying areas around the Royal Arsenal may sit in Flood Zone 2 or 3 and need a Flood Risk Assessment as part of the planning application. The Environment Agency's flood risk maps confirm the zone designation. Cost of the assessment is typically £600-£1,200. Reclaimed land near the river may also have higher groundwater and looser fill that requires additional ground investigation — typically a trial hole at the survey identifies the issue, and the structural engineer specifies deeper foundations or short bored piles where standard strip foundations aren't suitable. Adds £2,000-£6,000 to foundation cost on the most affected sites. Properties further inland (around Plumstead and the residential streets behind the town centre) have standard ground conditions and are usually outside flood zones. Royal Arsenal and Woolwich Town Centre conservation areas. The Royal Arsenal conservation area covers the riverside development and surrounding streets; the Woolwich Town Centre conservation area covers parts of the high street and adjacent residential roads. Within both, exterior front-facing changes need sympathetic design and Royal Borough of Greenwich can act on retrospective unauthorised changes. Most residential streets are outside both areas. Article 4 directions on some streets near the conservation area boundaries remove specific permitted development rights — we verify the planning status of each property at the survey. Crossrail uplift and economies of combined renovation. The Elizabeth Line station opened in 2022 and has driven Woolwich property values up faster than most other London boroughs. Investor buyers and first-time owners often combine a kitchen extension with full property renovation (rewire, replumb, lead pipe replacement, decoration) into a single coordinated project rather than two separate phases. Saves 10-15% on cost and 4-8 weeks on programme compared with sequential delivery, mainly through site setup economies, single project manager, and the ability to schedule trades efficiently across both scopes.
Royal Borough of Greenwich process and project management
Woolwich falls under the Royal Borough of Greenwich. Permitted development under Class A covers the standard 3-metre rear projection on a terrace and 4 metres on a semi or detached, except where Article 4 directions remove the right or where the property is within a conservation area requiring full planning. The Larger Home Extension prior approval process covers 4-6 metre projections on terraces with an 8-week neighbour consultation. We submit a Lawful Development Certificate (£103, 6-8 weeks at Greenwich) on permitted development projects for written confirmation, which protects the property at sale time. A Woolwich kitchen extension involves 12-15 trades over 10-16 weeks: demolition, foundations, drainage, structural steel, brick and block, roofing, glazing, plastering, electrics (NICEIC to BS 7671), plumbing, gas (Gas Safe), kitchen fitting, tiling, flooring, painting. Combined renovation projects involve a similar trade list within a longer 16-22 week programme. We assign one project manager from survey through handover with photo updates throughout the build. Fixed-price contracts cover labour, materials, structural engineer calculations (£600-£1,400 for the steel and foundation design pack including any reclaimed-land ground investigation), Building Control fees (£500-£800 at Greenwich), FENSA glazing registration, party wall surveyor coordination, conservation area applications where relevant, Flood Risk Assessment where applicable, trial hole investigation, and the Lawful Development Certificate or planning fee. Building Control inspections happen at foundation, DPC, drainage, structural steel, insulation (Part L: U-value 0.18 W/m²K for new walls and roof), and completion. Glazing is FENSA-registered. Origin or Schüco bifolds and Sieger sliders are common on Woolwich projects. Roof construction is warm-roof with 150mm PIR insulation. Underfloor heating across the new floor is standard. Where the extension projects over a Thames Water public sewer, a Build Over Agreement is required (£317 fee plus CCTV survey) and we handle the application.
Kitchen Extensions in Woolwich: What's Included
Kitchen Extensions Pricing in Woolwich
£45,000 – £90,000
10–14 weeks | Fixed-price contracts | No hidden costs
What Our Customers Say
“All Well managed our project from start to finish. The fixed-price contract meant no surprises, and the result is stunning.”
Verified Customer
Woolwich
“Professional team, clear communication throughout. They handled everything including Building Control sign-off.”
Verified Customer
Woolwich
Frequently Asked Questions
- How much does a Woolwich kitchen extension cost?
- Single-storey rear extensions of 3-4 metres on Victorian terraces (the most common Woolwich project) run £45,000-£75,000 including foundations, structural steel, glazing, electrics, plumbing, and finishes. Wraparound extensions on wider Edwardian terraces run £55,000-£85,000. Combined kitchen extension plus full property renovation runs £100,000-£170,000 for a single coordinated project — typically 10-15% cheaper than sequential delivery. Flood Risk Assessment adds £600-£1,200 for properties near the Thames. Reclaimed-land foundations near the river add £2,000-£6,000. Build Over Agreement with Thames Water adds £317 plus CCTV survey. Conservation area planning adds £206. Fixed-price contract before any work starts.
- Do I need a Flood Risk Assessment for a Woolwich extension?
- For properties near the Thames, yes. Properties within 200-300 metres of the Thames or in the lower-lying areas around the Royal Arsenal may sit in Flood Zone 2 or 3 and need a Flood Risk Assessment as part of the planning application. The Environment Agency's flood risk maps confirm the zone designation, and we check this at the survey before quoting. Cost is typically £600-£1,200 and we coordinate it as part of the planning process. Reclaimed land near the river may also need additional ground investigation — a trial hole identifies the issue and the structural engineer specifies deeper foundations or short bored piles where standard strip foundations aren't suitable. Most residential streets behind the town centre are outside flood zones.
- Are there Article 4 directions in Woolwich?
- On some streets, particularly around the Royal Arsenal and Woolwich Town Centre conservation areas. Article 4 directions remove specific permitted development rights and require full planning permission for changes that would otherwise be permitted under Class A. They mainly affect front-of-property changes (cladding, window replacement, front-facing alterations) and rarely affect rear extensions, but where the direction covers rear-elevation changes, the £206 full planning fee applies and lead time extends from 6-8 weeks to 10-12 weeks at the Royal Borough of Greenwich. We verify the planning status of each property on the Greenwich planning portal at the survey before quoting.
- Why hire All Well for a Woolwich kitchen extension?
- Three reasons. First, accuracy: we know the SE18 stock — which streets sit in Flood Zone 2 or 3, where reclaimed land affects foundations, the Royal Arsenal and Woolwich Town Centre conservation areas, and how the Crossrail uplift makes combined renovation-plus-extension projects worthwhile. Second, full accreditation: NICEIC for electrical (BS 7671), FENSA for glazing, Gas Safe registered for boiler relocation, structural engineer calculations included, and Building Control sign-off included on every project. Third, fixed-price contracts: the quote doesn't change unless the specification does, including Flood Risk Assessment, reclaimed-land foundation reassessment, party wall surveyor fees, and Build Over Agreement. 57 verified Google reviews averaging 4.5/5. Office on Limes Avenue, SE20.
Kitchen Extensions Near Woolwich
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