Loft Conversion Drawings in Bexley

Which postcode districts around Bexley do we cover for loft conversion work?

Each Bexley postcode district gets a row below, naming its dominant housing type alongside the council that will determine a roof scheme at an address inside it. Money in that table is the 2026 England statutory scale, which is the council's charge and has nothing to do with build cost.

How does a loft conversion differ street by street across Bexley?

Bexley roofs are not uniform. Pitch, eaves height and the depth of the back garden change within a few streets, and all three set the ceiling on what a loft conversion can take from the roof space.

• Sidcup (DA14, DA15) — 1930s semi-detached, Edwardian villas defines Sidcup, where 1930s semi-detached, edwardian villas set what a loft conversion can do. Edwardian roofs run deeper front-to-back across DA14. Any Sidcup loft conversion is validated by Bexley Council, with Sidcup station the usual Sidcup reference point on the site plan.
• Welling (DA16) — 1930s semi-detached defines Welling, where 1930s semi-detached set what a loft conversion can do. The 1930s hipped roof here needs a hip-to-gable before a rear dormer works across DA16. Any Welling loft conversion is validated by Bexley Council, with Welling High Street the usual Welling reference point on the site plan.
• Erith (DA8) — loft conversion work in Erith means victorian terraces, post-war estates. Erith is Victorian terraces, post-war estates. The Victorian butterfly and double-pitched roofs on these streets normally clear the 2.2 m head height a dormer conversion needs once the ceiling joists are raised throughout DA8. Bexley Council decides the Erith application, and Erith Riverside anchors the Erith location plan.
• Crayford (DA1) — Victorian terraces, 1930s semi-detached defines Crayford, where victorian terraces, 1930s semi-detached set what a loft conversion can do. The Victorian butterfly and double-pitched roofs on these streets normally clear the 2.2 m head height a dormer conversion needs once the ceiling joists are raised across DA1. Any Crayford loft conversion is validated by Bexley Council, with Crayford station the usual Crayford reference point on the site plan.
• Old Bexley (DA5) — a loft conversion in Old Bexley starts from georgian villas, victorian cottages, and Old Bexley reads as Georgian and Victorian village conservation. Georgian roofs here are shallow and often behind a parapet in DA5. Bexley Council assesses Old Bexley loft conversions against its own Old Bexley character guidance, and the location plan we draw for Old Bexley references Old Bexley Village.
• Belvedere (DA17) — loft conversion work in Belvedere means 1930s semi-detached, post-war flats. Belvedere is 1930s semi-detached, post-war flats. The 1930s hipped roof here needs a hip-to-gable before a rear dormer works throughout DA17. Bexley Council decides the Belvedere application, and Belvedere station anchors the Belvedere location plan.
• Barnehurst (DA7) — a loft conversion in Barnehurst starts from 1930s semi-detached, and Barnehurst reads as 1930s semi-detached. The 1930s hipped roof here needs a hip-to-gable before a rear dormer works in DA7. Bexley Council assesses Barnehurst loft conversions against its own Barnehurst character guidance, and the location plan we draw for Barnehurst references Barnehurst station.

What local planning policy applies to a loft conversion in Bexley?

Bexley conservation designations: sixteen are recorded across the borough, Crayford, Welling and Bexley Village among them. For a loft specifically, designation is decisive: a conservation area is article 2(3) land and Class B roof extensions are not permitted development there, so the dormer that would have gone through on a certificate becomes a householder application instead. The householder application fee in England is £548, against £249 for the prior approval route, and the determination period roughly doubles.

Bexley permitted development status: there is no borough-wide direction from Bexley Council, so a loft conversion at a DA1 address is normally still permitted development. We certify that with a £274 Lawful Development Certificate rather than leaving a Bexley sale to argue it later.

The building fabric around Bexley: 1930s semi-detached dominates; Victorian cottages in Bexley Village and Crayford; post-war estates in Thamesmead and Erith. Outer south-east London suburban; very permissive planning environment; strong PD uptake for extensions and loft conversions. A loft conversion in Bexley is scoped against that stock first, because it decides whether the scheme runs as permitted development, a £274 Lawful Development Certificate, or a full £548 application to Bexley Council.

Who decides a loft conversion on the edge of Bexley?

• Greenwich — adjoining Bexley, with 20 conservation areas centred on SE3. A loft conversion on the far side of the Bexley line is determined by Greenwich Council, so the Bexley quote for loft conversions is checked against Greenwich guidance before it is issued.
• Bromley — the Bromley boundary runs against Bexley, so a loft conversion a street from Bexley is decided by Bromley Council instead. Bromley runs 48 conservation areas across BR1 and its neighbours, which is why loft conversions priced for Bexley are re-checked against Bromley policy whenever the Bexley address sits on that edge.

Sources for this Bexley loft conversion page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.