The Brockley building stock
Brockley is dominated by tall semi-detached three-storey Victorian villas in yellow London stock brick with red brick detail bands. Most have decorative gable ends, period bay windows, original mosaic-tile front pathways and cast iron railings. The conservation area covers most of the SE4 postcode district.
Working in Brockley conservation area
Lewisham Council requires conservation area consent for: replacement of sash windows, front door changes, removal or alteration of original mosaic tile pathways, replacement of front garden railings, alteration of chimney pots, and any rear extension visible from the public realm. We submit and manage all conservation area consents as part of project management. Our brief always covers like-for-like specification of period elements where consent for replacement is not granted.
Typical Brockley projects
A standard Brockley refurbishment is a full strip-out of a three-storey semi, side-return extension into the kitchen-dining space, optional loft conversion, period feature restoration (cornicing, ceiling roses, original floorboards, period fireplaces). The Brockley project gallery on our website covers a recent example — restored arched front entrance, original mosaic tile path, reinstated cast iron railings.
What it costs in Brockley
A whole-house refurbishment of a three-storey Victorian semi in Brockley typically runs from £280,000 to £620,000 in 2026 prices, depending on extension scope and finish quality. Side-return extension only is £75,000 to £180,000. Loft conversion only is £85,000 to £140,000. We provide rough order-of-magnitude budgets within three working days of the initial site visit.
Building refurbishments in Brockley SE4
Building refurbishments in Brockley are KRAMAN's most-repeated project type in SE4. The classic Brockley refurbishment is a full strip-out of a three-storey Victorian semi, side-return extension into the kitchen-dining space, optional loft conversion, and careful restoration of period features (arched front entrance, original mosaic tile path, cast iron railings, sash window restoration, cornicing). Typical project value runs £280,000 to £620,000 in 2026 prices.
The Brockley conservation area covers most of the original Victorian street pattern, so every external specification element (sash window profile, front door colour, mosaic tile pattern, garden railings, chimney pots) requires conservation area consent or like-for-like replacement. We handle the entire conservation submission alongside the architect. For full refurbishment scope and pricing see the refurbishment service page.
Loft conversions in Brockley
Brockley loft conversions are typically L-shape mansards above the existing rear addition or carefully detailed rear dormers, both requiring conservation area consent under Lewisham's strict Brockley policy. Specification is timber sash dormer windows to match the existing house, slate or tile cladding to dormer cheeks, no flat roof boxes visible from the street. Typical Brockley loft conversion cost £65,000 to £90,000 and programme 11 to 15 weeks. For the comparison between dormer and mansard see the loft conversion guide.
House extensions in Brockley
Side-return extensions are the most common Brockley extension format, opening the original galley kitchen into a wide kitchen-dining-living space. Typical Brockley side-return adds 9 to 14 square metres and runs £50,000 to £85,000 in 2026 prices. Conservation area work in Brockley requires matching London stock brick, slate or natural tile roofing, and traditional detailing on rainwater goods and external doors. Rear extensions deeper than 3 metres typically need full planning permission rather than permitted development. See the house extension service page for pricing and rules across formats.
Recent projects in this area
Project in Brockley SE4?
Free initial site visit. Written rough-order-of-magnitude budget within three working days.
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