Loft conversion and extension project in Battersea by Bluebird Spaces
    Battersea SW11

    Builders in Battersea for Extensions, Lofts & Renovations

    Terraced houses, mansion flats and period conversions need different routes. We check the property before we price the work.

    Battersea ranges from Victorian terraces around Clapham Junction and Lavender Hill to mansion flats near the park and newer apartments towards Nine Elms. We plan extensions, loft conversions and flat renovations around the exact building, its ownership and the approvals it needs.

    Local project guide

    Planning a Battersea house or flat project

    SW11 ranges from terraced houses around Clapham Junction and Lavender Hill to converted flats, mansion blocks and newer apartments closer to the park and river. Each has a different combination of planning, freeholder, access and structural constraints, so the exact building must be checked before a design is treated as viable.

    What to check before choosing a contractor

    • Confirm whether the property is a house, converted flat or purpose-built flat; permitted-development rights and freeholder approvals differ.
    • Check conservation-area and Article 4 controls, particularly on the Shaftesbury Park and Latchmere estates.
    • Plan access, parking, scaffold and deliveries before fixing the construction sequence or programme.
    Check Wandsworth Council guidance

    Battersea: terraces, mansion flats and nearby work

    We don't have a finished Battersea project on the site yet, so we won't dress up a job from somewhere else as local proof. The closest comparable work is our kitchen extension and flat renovation in Clapham, our rear kitchen extension in Wandsworth and our complete apartment renovation in Chelsea.

    Those projects cover the three questions we hear most often in SW11: how to bring daylight into an extended ground floor, how to sequence work when the client stays at home, and how to manage a full flat reconfiguration in a shared building.

    A kitchen extension and flat renovation nearby in Clapham

    This project combined a ground-floor kitchen extension with a new layout throughout a two-bedroom flat. It also included new bathrooms, internal finishes and landscaping, and the owners lived in the flat while we worked.

    That combination is relevant to converted houses in Battersea, where an extension cannot be planned in isolation from the flat layout, the shared structure and the route used to bring materials through the property.

    “Ben is a fantastic project manager, he doesn't pass any stress onto his clients, he is organised and professional as well as super approachable for anything we needed to ask.”
    Sophie Weston, Clapham extension and renovation

    See the Clapham kitchen extension →

    A rear extension designed to keep the middle of the house bright

    The Wandsworth project added approximately 350 sq ft. A large rooflight and structural glazing bring daylight into the centre of the new kitchen and family space.

    That matters on a Battersea terrace. Extending the rear wall can leave the middle room further from a window, so roof glazing, internal openings and the kitchen layout need to be considered together rather than added at the end.

    “They were transparent, easy to work with, had top tradesmen who care about delivering a good build and were always happy to create solutions as we progressed.”
    Alex NG, Wandsworth kitchen extension

    See the Wandsworth rear extension →

    Shaftesbury Park and Latchmere Estate

    Two Battersea cottage estates have extra controls. Shaftesbury Park Estate is a conservation area with an Article 4 Direction covering street-visible alterations, roof changes, front boundaries and painting outside walls. Latchmere Estate also has an Article 4 Direction, and its list specifically includes extensions to the house. Our Wandsworth Article 4 guide explains what to check before drawings begin.

    A flat may need three different permissions

    For a Battersea flat, planning permission is only one part of the picture. The lease may require the freeholder or managing agent to approve a licence to alter, and structural work may also involve Building Control and the Party Wall Act. The order matters: there is little value in finalising a layout before the lease restrictions and shared services have been checked.

    The Battersea Park Conservation Area appraisal places particular weight on the uniform appearance of its mansion blocks. Windows, balcony doors, railings, roof lines and repeated external details are part of that character, so an internal refurbishment and an external alteration can have very different approval routes.

    Access is part of the build plan

    Many SW11 streets have controlled parking and limited space for deliveries. A skip or scaffold on the public highway needs a Wandsworth licence; scaffolding that occupies a controlled parking bay needs a bay suspension as well. On a red route, permission comes from Transport for London instead. We check these constraints before the programme is fixed, because the route into the property affects labour, protection and delivery timing.

    Our Services in Battersea

    Loft Conversions

    Dormer, mansard, hip-to-gable, and L-shaped conversions for period properties in Battersea.

    • Around 13-15 weeks as a realistic target; larger or complex schemes take longer
    • Typical rear dormer with en-suite £80,000–£90,000 ex VAT
    Learn more →

    Extensions

    Rear, side return, and wraparound extensions. Open-plan living designed for homes in Battersea.

    • Around 13 weeks on site
    • Typical side return £90,000–£100,000 ex VAT
    • Planning route checked by address
    Learn more →

    Battersea Cost Guide

    TypeTypical CostPlanning?
    Typical loft conversion (rear dormer with en-suite)£80,000–£90,000 ex VATOften no
    Typical kitchen / side return extension (build price; kitchen and flooring supplied by you)£90,000–£100,000 ex VATOften no
    Velux / Rooflight loftPriced at site visitUsually no
    L-Shaped DormerPriced at site visitCheck with us
    MansardPriced at site visitYes
    Rear ExtensionPriced at site visitOften no

    Typical project build prices, excluding VAT and professional fees (design, structural engineer, Building Control, party wall and planning fees). Prices are the same across every borough we cover; access and logistics (parking, skips, scaffold, restricted access) can affect the final price. Your fixed quote follows a site visit.

    Next step

    Discuss your Battersea project

    Tell us what you are considering and choose a callback or site visit. We will review the property, scope and likely approval route before preparing a clear, itemised proposal.

    • Federation of Master Builders member
    • No deposit upfront; weekly payments for completed work
    • Itemised quote with VAT and exclusions stated clearly

    Request a Battersea callback or site visit

    We'll confirm your callback or site visit within 24 hours.

    Common Questions

    It depends on the address, property type and proposal. Flats and maisonettes do not have the same householder permitted-development rights as houses, and conservation areas or Article 4 Directions can remove further rights. We check the address and planning history before recommending a route.

    A typical loft conversion with us, a rear dormer with an en-suite, costs about £80,000–£90,000 to build, and a typical kitchen or side return extension about £90,000–£100,000 (build price; kitchen units, flooring and other second-fix items are supplied by you). Both exclude VAT and professional fees. Prices are the same across the boroughs we cover, though access and logistics can affect the final figure. You get a fixed quote after a site visit.

    Many can, but roof form, head height, stair position, previous alterations and planning constraints all matter. We assess these points before suggesting a rooflight, dormer, L-shaped or mansard option.

    Yes. The first checks are the lease, freeholder or managing-agent requirements, any licence to alter, and the building's rules for access and working hours. Structural changes and shared services may also need separate consent before work starts.

    We flag likely Party Wall Act requirements and can coordinate the construction information with the appointed surveyor. Whether notices or an award are needed depends on the proposed work and neighbouring structures.

    A loft takes around 13-15 weeks as a realistic target; larger or complex schemes take longer; written programme after survey and design. Kitchen and side return extensions are around 13 weeks on site. A combined or full-refurbishment programme will be longer. The written programme is confirmed once scope, approvals and specification are agreed.
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    Ready to talk about your project?

    Free site visit, then a fixed-price quote. No deposit upfront.