Bluebird Spaces
    Loft conversion and extension project in Sheen by Bluebird Spaces
    Sheen SW14

    Loft & Extension Specialists in East Sheen

    Specialist loft conversion and extension builders. FMB members.

    07564 041115Request a quote

    Local project guide

    Planning an East Sheen extension or loft

    East Sheen and SW14 include terraces, semis and family houses with varied roof forms and previous additions. We check the planning history, conservation constraints, structure and garden relationship before recommending an extension or loft layout.

    What to check before choosing a contractor

    • Use Richmond's maps to check conservation-area and Article 4 controls at the property.
    • For lofts, confirm stair location and roof volume before assuming a dormer layout will work.
    • For rear extensions, coordinate structure, glazing and drainage before the quote is finalised.
    Check Richmond upon Thames Council guidance

    Completed work

    Relevant projects for Sheen homeowners

    View all projects →
    Completed East Sheen rear extension by Bluebird SpacesCompleted East Sheen rear extension by Bluebird Spaces — view 2Completed East Sheen rear extension by Bluebird Spaces — view 3
    In this area

    Richmond Rear Kitchen Extension, East Sheen

    300 sq ft added · 12 weeks

    View project
    Completed Richmond loft conversion by Bluebird SpacesCompleted Richmond loft conversion by Bluebird Spaces — view 2Completed Richmond loft conversion by Bluebird Spaces — view 3
    Nearby example

    Richmond Loft Conversion with En Suite

    Loft conversion · 500 sq ft added

    View project
    Completed Chiswick townhouse renovation by Bluebird SpacesCompleted Chiswick townhouse renovation by Bluebird Spaces — view 2Completed Chiswick townhouse renovation by Bluebird Spaces — view 3
    Nearby example

    Chiswick Period Townhouse Renovation

    3,200 sq ft · 22 weeks

    View project

    Our East Sheen extension

    East Sheen has an SW14 postcode, but the council is Richmond upon Thames. So the planning rules, the skip licence and the parking suspensions all come from Richmond, not Wandsworth. People mix that up more often than you'd think.

    What the owners wanted, and what we built

    The aim was one open-plan room for cooking and eating that properly connects with the garden. We added about 300 sq ft at the back of the house, with floor-to-ceiling glazing, bi-fold doors and the structural work to carry it. Twelve weeks from start to finish.

    With that much glass, the back of the house is basically one big opening. The steel above it has to be in before the glazing can be measured properly, which is why big glazing is normally measured on site once the structure is up, rather than from the drawings.

    “The project came out on time, on budget and with customer happiness as their ultimate goal.”
    Dan & Maddy, East Sheen extension

    See the East Sheen extension →

    Lots of glass and the building regs

    Building regulations set a working limit on glazing in an extension: 25% of the new floor area, plus the area of any windows or doors the extension covers up, counting doors and rooflights too. Plenty of kitchen extensions go over that. When they do, you need calculations showing the rest of the build makes up for it, usually with better insulation or better glass. It's routine, but it has to be done at design stage, not after the doors are ordered.

    Do you need planning?

    Ours was about 300 sq ft. Some rear extensions don't need a planning application at all, but Article 4 Directions, conservation areas and old planning conditions can take those rights away, so it's worth checking the address before anyone draws anything.

    Paperwork in Richmond borough

    A skip on the road needs a Richmond skip licence, applied for by a registered skip company. In a controlled parking zone, add five calendar days for the council to put up the suspension signs. It's not hard, but it has to be done in the right order.

    Richmond has a lot of conservation areas and Article 4 Directions. Our Richmond Article 4 guide explains what that means for an extension.

    Extension pages worth a look

    Our Services in Sheen

    Loft Conversions

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

    • 8–12 week build
    • 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 Sheen.

    • 8–14 week build
    • Typical side return £90,000–£100,000 ex VAT
    • Planning route checked by address
    Learn more →

    Sheen 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 Sheen 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 Sheen callback or site visit

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

    Common Questions

    Many extensions and loft conversions in Sheen fall under permitted development. Properties within the Mortlake and East Sheen conservation areas typically require planning permission from Richmond Council. We check your planning position at our free site visit, and if you need permission we work with your architect on the application.

    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.

    Loft conversions: 8–12 weeks. Extensions: 8–14 weeks. Conservation area properties may add 6–10 weeks to the pre-build phase for planning approval. We provide a detailed timeline before work begins.

    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.

    Nearby areas we cover

    Get Started

    Ready to talk about your project?

    Free consultation. Clear, itemised quote. No deposit upfront.

    Reach Out07564 041115