Side Return Extension Specialists in Fulham (SW6)
Professional side return extension specialists in Fulham, South West London.
Why Choose All Well for Side Return Extensions in Fulham?
Fulham's Victorian terraces, the streets running off Munster Road, Bishops Road, and towards Bishops Park, almost all have a narrow side passage sitting unused alongside the kitchen. In SW6 that passage is the most straightforward way to add usable floor area without touching the garden. We work across Fulham building side return extensions that convert that alley into open-plan kitchen-diners, typically gaining 8 to 15 square metres on the ground floor.
Every project comes with a fixed-price contract, single project manager, and full certification including Building Control sign-off.
Side Return Extensions for Fulham Properties
Fulham is known for its victorian terraces, edwardian mansion flats, riverside developments. Our side return extensions services are tailored to these property types, ensuring results that complement the character of your home.
Postcodes we cover: SW6
Side Return Extensions Tip for Fulham Homeowners
Most Fulham side returns fall under permitted development, but Fulham has several conservation areas, Fulham Park Gardens, Studdridge Street, and Hurlingham among them, where Hammersmith and Fulham Council can restrict visible roof glazing and external materials. If you're in one of those areas, we'd recommend applying for a Lawful Development Certificate (£129 application fee) before breaking ground, so you have written confirmation from the council in hand.
Side return extensions on Fulham SW6 terraces
A side return infill in Fulham gives you a kitchen-width extension with roof glazing, structural steelwork, and full Building Regulations sign-off. Most SW6 projects are shaped by the ground conditions under the plot and the finish level clients here typically specify.
How Fulham clay shapes your foundations
The London Clay under SW6 requires strip foundations of 1.2 to 1.5 metres for most side returns, deeper than outer boroughs. If you have mature trees on the plot, which many Fulham terraces do, you may need piled foundations to avoid root interference. That is non-negotiable for Building Control sign-off. We confirm the foundation design in the fixed-price quote after the site survey, so there are no surprises mid-build.
Crittall glazing vs standard aluminium in SW6
Crittall-style slim-framed glazing is popular in Fulham because it suits the period aesthetic of Victorian terraces. It is worth considering if the kitchen will be visible from the garden and the rear elevation matters to you. We're FENSA registered for all glazing installations and can advise on which spec suits your specific property before you commit.
Planning a side return extension in Fulham: permitted development and conservation areas
Most Fulham side returns proceed under permitted development, no formal planning application, just a Building Regulations submission. The key limits are a maximum height of 4 metres at the eaves and not covering more than half the original garden area. Where it gets more complicated is if your terrace sits inside one of Fulham's conservation areas.
Hammersmith and Fulham conservation areas: what changes
Inside Fulham Park Gardens, Studdridge Street, Hurlingham, and the other designated areas, Hammersmith and Fulham Council can scrutinise visible roof treatments, glazing style, and external materials even on rear extensions. Front-facing changes are typically refused; side returns and rear extensions are usually approved provided materials match the character of the street. We design to the council's published conservation area guidelines from the outset, which means our submissions go through cleanly.
Lawful Development Certificate: when it's worth getting one
If you're planning to sell within five years or want certainty before spending on detailed drawings, a Lawful Development Certificate gives you written confirmation from Hammersmith and Fulham that your extension is permitted. The application fee is £129. We handle the submission and it typically takes 8 weeks. For most straightforward Fulham side returns it's optional, but in or near a conservation area we'd always recommend it.
What to expect: side return extension build process in Fulham
A typical Fulham side return takes 10 to 14 weeks from site start to handover. That covers demolition of the existing side passage roof, new foundations, structural steelwork to open the kitchen wall, roofing and glazing, electrics, plumbing, plastering, and decoration. We run one project manager on each job throughout.
Structural steelwork and opening up the kitchen wall
The defining structural element is the RSJ or UC steel beam that carries the load when we remove the wall between the original kitchen and the new side return space. The size is specified by a structural engineer based on your particular terrace, typically a 203x203 UC or similar. We coordinate the engineer, pour the padstones, and install the beam as part of the build. Building Control inspects at each stage.
Side Return Extensions in Fulham: What's Included
How I price side return extensions in Fulham
I price every side return extensions job in Fulhamafter I’ve seen it. No two properties are the same, so a number here would only mislead you. What you get instead is a fixed-price contract, a week-by-week programme, and no costs that turn up later.
Get a fixed quoteWhat 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
Fulham
“Professional team, clear communication throughout. They handled everything including Building Control sign-off.”
Verified Customer
Fulham
Frequently Asked Questions
- How much does a side return extension cost in Fulham?
- A standard side return infill in SW6 covers structural steelwork, foundations, roof glazing, insulation to current Building Regulations, electrics, plumbing, plastering, and decoration. Fulham projects are shaped by deeper foundations on London Clay and the finish specification clients here typically choose, with Crittall-style glazing, underfloor heating, and high-end kitchen fit-outs common. We provide a fixed price confirmed in writing after a free site visit.
- Do I need planning permission for a side return extension in Fulham?
- Most Fulham side returns fall under permitted development, so no formal planning application is required. The extension must stay below 4 metres at the eaves and not cover more than half the original garden area. If your property is within one of Fulham's conservation areas, Fulham Park Gardens, Studdridge Street, or Hurlingham, Hammersmith and Fulham Council may impose material and glazing requirements. A Lawful Development Certificate (£129 application fee) gives you written confirmation the extension is permitted, which we'd recommend in or near conservation areas.
- How long does a side return extension take in Fulham?
- 10 to 14 weeks from site start to handover for a standard side return. That includes demolition, foundations (which run deeper in SW6 due to London Clay), structural steelwork, roofing and glazing, first and second fix electrics and plumbing, plastering, and decoration. If you're combining a side return with a rear wraparound, allow 14 to 18 weeks. We'll give you a phased programme before we start.
- Why use All Well for a side return extension in Fulham rather than a local sole trader?
- We run the project from survey to Building Control sign-off under a single fixed price, with one project manager on site throughout. We coordinate the structural engineer, Building Control inspector, and all trades, so you're not managing subcontractors yourself. We work across Fulham's Victorian terraces in SW6 and understand what Hammersmith and Fulham Building Control expects at each inspection stage. All glazing is FENSA registered and the build includes full sign-off documentation.
All Well has completed 100+ projects across 25 London boroughs since 2020. We are NICEIC approved for electrical work, FENSA registered for glazing, and CHAS certified for site safety, with Public Liability insurance to £5 million. 57+ Google reviews average 4.5 stars. All Well Property Services® is a UK registered trademark, Companies House no. 12721034, operating from Unit 1 Limes Avenue, Anerley SE20 8QR.
Side Return Extensions Near Fulham
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