Bluebird Spaces

    House Extensions in Wandsworth

    Side return, rear and wraparound extensions for SW18 homes across Wandsworth. Free site visit, then a fixed-price quote.

    Call 07564 041115Get Free Quote

    Why Wandsworth Homeowners Choose Us

    Real Local Projects

    Photos and write-ups of our nearby builds below

    Programme Up Front

    We set out the programme in writing before work starts

    SW18 Planning Checked

    We check Wandsworth planning requirements

    FMB Members

    Members of the Federation of Master Builders

    House Extension Options in Wandsworth

    Side Return Extension

    Perfect for terraced and semi-detached properties. Typically adds 15-20m² of space.

    • Ideal for kitchen extensions
    • Often permitted development
    • Our Earlsfield side return: about 200 sq ft

    Single-Storey Rear

    Extend into your garden. Creates open-plan living spaces with natural light.

    • Up to 3m under PD; up to 6m with prior approval (not in conservation areas)
    • Bi-fold or sliding doors
    • Our Wandsworth rear extension: about 350 sq ft

    Wraparound Extension

    Combines side and rear extensions for maximum space. Transforms ground floor living.

    • Adds 30-40m² typically
    • Open-plan kitchen-diner
    • Programme set out with your quote

    Building Extensions in Wandsworth

    Planning in Wandsworth

    We navigate Wandsworth Council's planning requirements. Most single-storey rear extensions qualify for permitted development rights, avoiding full planning applications.

    In a conservation area, check our guide to Wandsworth Article 4 and conservation-area rules before you commission drawings.

    Victorian & Edwardian Properties

    Wandsworth has many period properties. We work on sympathetic extensions that respect original features while creating modern living spaces.

    Party Wall Act

    Many Wandsworth homes are terraced or semi-detached, so the Party Wall Act often applies. A party wall surveyor usually serves the notices for you, and if a neighbour doesn't consent, a surveyor (one agreed surveyor, or one for each side) makes an award. We flag likely requirements early, give the surveyor our construction information, and plan the start date around the notice periods.

    Local Logistics

    We understand Wandsworth's streets and parking restrictions. Our team coordinates deliveries and skips efficiently to minimise disruption.

    Our Work Near Wandsworth

    Projects we have built in and around Wandsworth. Each one links to the full write-up with photos.

    Rear extension with skylight and modern kitchen design in Wandsworth, South West London by Bluebird Spaces

    Wandsworth, South West London, SW18

    Wandsworth Rear Kitchen Extension

    13 weeks on site · 350 sq ft extension

    • Rear extension
    • Skylight installation
    • Modern kitchen
    Side return kitchen extension and bi-fold doors installation in Earlsfield, Wandsworth by Bluebird Spaces

    Earlsfield, Wandsworth, SW18

    Earlsfield Side-Return Kitchen Extension

    13 weeks on site · 200 sq ft extension

    • Side return extension
    • Kitchen renovation
    • Bi-fold doors
    Completed open-plan kitchen and rear extension in a whole-house renovation in Wimbledon SW19

    Wimbledon, South West London, SW19

    Wimbledon Whole-House Renovation, Loft Conversion & Rear Extension

    • Complete strip-out and whole-house renovation
    • Loft conversion with shower room
    • Rear kitchen and dining extension
    “We worked with Bluebird on our kitchen extension project. Highly recommend. 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. Thanks Ben, Tom and Milen!”
    Alex NG, Wandsworth · see the project

    How a extension with us runs

    1. Step 1

      Free site visit

      We visit, measure up and assess the existing structure, access and any party wall implications, then explain the practical next steps. No obligation.

    2. Step 2

      Fixed-price quote

      An itemised quote for the build, excluding VAT and professional fees (design, structural engineer, Building Control, party wall and planning fees), which are quoted separately.

    3. Step 3

      Approvals

      Working with your architect, the drawings are developed and submitted for planning if required, and party wall notices are served to neighbours if needed. We plan the start date around them.

    4. Step 4

      Build

      The programme is set out before work starts. If you change the scope, we price the change and agree it with you first.

    5. Step 5

      Handover

      Final inspection, a snagging walk-through with you, and keys handed over.

    Federation of Master Builders members

    Bluebird Spaces is a member of the Federation of Master Builders.

    View our FMB profile

    Talk to us about your Wandsworth project

    Call us, or send the enquiry form and we'll arrange a free site visit.

    07564 041115Book a site visit

    Frequently Asked Questions

    Not always. Under householder permitted development, a single-storey rear extension in Wandsworth can usually go up to 3m deep on a terraced or semi-detached house, or 4m on a detached house, without a planning application, within height and other limits. Going up to 6m (or 8m detached) needs prior approval from the council first: your neighbours are consulted and work can't start until the council approves or 42 days pass without a decision. That route isn't available in conservation areas. Flats and maisonettes don't have householder permitted development rights, listed buildings need listed building consent, and wraparound or larger side extensions usually need a full planning application. We check your position at our free site visit, then give you a fixed-price quote.

    Allow time before that for design, any planning or prior approval decision and party wall notices. Your programme depends on the size, structure and approvals, and we set it out in writing before work starts.

    We price rear extensions individually after a site visit, because size, structure and glazing vary so much. For reference, a typical kitchen or side return extension with us costs about £90,000–£100,000 to build, excluding VAT and professional fees; kitchen units, flooring and other second-fix items are supplied by you. Access and logistics can also affect the final figure.

    Often, yes, if your home is terraced or semi-detached, as many in Wandsworth are. We flag likely Party Wall Act requirements and coordinate construction information with the appointed surveyor. Whether notices or an award are needed depends on the work and neighbouring structures.
    Get Started

    Ready to talk about your project?

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

    Reach Out07564 041115