Loft conversion and extension project in Kensington by Bluebird Spaces
    Kensington W8

    Extension & Loft Specialists in Kensington

    Victorian and Edwardian home transformations. RBKC planning experts.

    07564 041115

    Kensington's grand Victorian and Edwardian houses offer huge potential for loft conversions, rear extensions, and basement conversions. We navigate RBKC's conservation requirements so you don't have to.

    Our Services in Kensington

    Loft Conversions

    Dormer and mansard conversions for Kensington's Victorian terraces. Add a bedroom, bathroom, or home office with views across West London.

    • 8–12 week build
    • From £90,000
    • RBKC planning handled

    Rear & Side Extensions

    Open-plan kitchen-diners and garden rooms that transform how you use your Kensington home. Seamless indoor-outdoor living.

    • 10–16 week build
    • From £80,000
    • Party wall managed

    Kensington Cost Guide

    TypeTypical CostPlanning?
    Rear Dormer Loft£90,000 – £130,000Often no
    Mansard Loft£120,000 – £180,000+Yes
    Rear Extension£80,000 – £120,000Often no
    Basement Conversion£180,000 – £400,000+Yes
    Full Refurbishment£200,000 – £500,000+Check with us

    All costs exclude VAT. Kensington's conservation areas may affect scope — free planning assessment provided.

    Common Questions

    Most of W8 falls within RBKC conservation areas. We provide a free planning assessment to confirm your property's status and what work is permitted.

    Yes — rear dormers are often permitted development. Mansard conversions require planning approval but RBKC regularly grants them on suitable properties. We advise on the best approach.

    Typically £180,000–£400,000+ depending on depth and specification. Kensington basements require careful engineering due to party wall proximity.

    Yes. We have extensive experience with RBKC and manage the entire planning process, including pre-application advice, submission, and officer liaison.

    Rear extensions under permitted development are most common. Side returns and wraparounds are also popular. We assess what's achievable for your specific property.
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    Ready to talk about your project?

    Free consultation. Transparent, fixed-price quote within 48 hours.