Bexley applies standard suburban householder control across DA7, a settled inter-war family market with no conservation constraints.


If your property sits elsewhere in the borough, the borough-wide page for building regulations drawings in Bexley covers the same service across every ward.
Building regulations drawings for a Bexleyheath project turn the design into a construction-ready set — Part A structure, Part B fire, Part L thermal, Part M access — for Bexley Council Building Control or an approved inspector. On DA7's inter-war bay-fronted semis and terraces around bexleyheath, the recurring details are steel beams over knocked-through ground floors, loft floor build-ups, and insulation upgrades to solid period walls around Bexleyheath, Barnehurst, Crook Log, Northumberland Heath fringe.
A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessibility — submitted to LABC or your approved inspector with structural calculations coordinated.
Across Bexleyheath, Barnehurst, Crook Log, Northumberland Heath fringe in DA7, the dominant property is inter-war bay-fronted semis and terraces around bexleyheath and barnehurst, with post-war infill. That stock shapes what building regulations drawings looks like here: the right approach for a period terrace differs from a mansion-block flat or a new-build, and Bexley Council judges each on design quality and neighbour impact. We survey the specific Bexleyheath property, confirm the planning route — Permitted Development, a Lawful Development Certificate, or full planning — and draw a council-ready set tailored to the DA7 streetscape.
Housing stock in DA7: Inter-war bay-fronted semis and terraces around Bexleyheath and Barnehurst, with post-war infill.
Within the district: Bexleyheath, Barnehurst, Crook Log, Northumberland Heath fringe.
Streets we know in DA7: the Barnehurst estate roads, the Crook Log streets and the inter-war terraces around Erith Road. Each road has its own building line, boundary treatment and precedent that Bexley Council weighs when assessing a building regulations drawings scheme.
Getting around DA7: Barnehurst and Bexleyheath into London Bridge and Cannon Street.
Property values: the district's 2025 median, £480,000, stood £50,000 above Bexley's £430,000. Detached houses are scarce borough-wide, with 174 sales at a £653,000 median.
Borough character: Outer south-east London suburban; very permissive planning environment; strong PD uptake for extensions and loft conversions.
Plans, sections and elevations at 1:50 with full annotation and material specification.
U-values for walls, roof, floor and glazing; SAP or SBEM where required; compliance statement.
Chartered engineer sign-off on beams, pad foundations, lintels, roof structure.
Escape routes, compartmentation, smoke alarms, fire-rated construction detail.
Soil and vent pipe routes, MVHR coordination, EV charging (Part S).
Full Plans submission to Bexley Council Building Control or an approved inspector with inspections coordinated through to completion certificate.
Single planning or building-regs submission.
Planning + building regs + structural.
Listed, conservation or complex sites.

Because DA7 is a settled family suburb of inter-war bay-fronted semis around Barnehurst and Bexleyheath — ideal for rear and side extensions and hip-to-gable loft conversions. With no conservation constraints, much of the work runs on the Permitted Development route, confirmed with a Lawful Development Certificate.
Usually yes on the semis — a hip-to-gable plus rear dormer within the 50 cubic metre volume allowance, confirmed by a Lawful Development Certificate. We check the roof head height and draw the scheme for Building Control too, which is essential for the new floor and stair.
Often, on the wider semi plots — a wrap-around ground-floor extension or a two-storey side addition, subject to Bexley's design and neighbour-amenity policy on the 45-degree test. We design within those limits and produce the planning and Building Regulations drawings together.
DA7 offers strong value.
Bexley Council charges its own statutory application fee (currently £548 for a householder planning application, £610 for a full application). We quote the drawings as one fixed price and the free site survey covers every DA7 address.
For a DA7 project across Bexleyheath, Barnehurst, Crook Log, Northumberland Heath fringe, expect roughly 3–4 weeks from instruction to submission: week 1 the measured survey, weeks 2–3 the drawings and your revisions, then validation and the statutory determination by Bexley Council (8 weeks for a householder application). We carry the Bexleyheath application through every officer query to the decision.
Bexleyheath (DA7) sits primarily in Bexley, so applications are decided by Bexley Council. We confirm the planning route for your exact address before quoting.
Almost always. Any structural work behind building regulations drawings in Bexleyheath — new openings, steel beams, loft floors, foundations — needs Building Regulations approval covering structure (Part A), fire escape (Part B) and insulation (Part L), submitted to Bexley Council Building Control or an approved inspector. On DA7's typically terraced and semi-detached stock, a Party Wall notice to adjoining neighbours is normally required before the steelwork. We coordinate both as part of the Complete package.
In value terms, yes. The bigger risk is an unapproved or non-compliant scheme — which is why council-ready drawings and a clean Building Control sign-off matter on DA7 homes.
Neighbouring authorities set their own policies, and the boundary rarely matches the postcode. Full service listings for DA5, DA6 and DA15.
Pick a slot that suits you. No obligation and no sales pressure, just straight answers on your planning route.
Every DA7 postcode district we draw in, the stock that dominates it and the authority that validates a building regulations package there. DA7 fees below are the statutory England rates for 2026, not building regulations package estimates.
| Postcode | Area | Dominant stock | What it means for a building regulations package |
|---|---|---|---|
| DA7 | Bexleyheath / Barnehurst | 1930s semi-detached | DA7 covers Bexleyheath / Barnehurst only; Bexley Council handles the building regulations package. |
| DA7 | Bexleyheath | 1930s semi-detached | Bexleyheath is inside DA7. Building control is not a council monopoly: an approved inspector can take the same job, discharging the same duty under the Building Regulations, wherever the address sits. |
| DA7 | Barnehurst | 1930s semi-detached | A DA7 address in Barnehurst can route building control through Bexley Council or through an approved inspector. Both discharge the same duty; the fee and the inspection timetable are what differ. |
| DA1 | Crayford / Dartford fringe | Victorian terraces, 1930s semi-detached | Adjoining district to DA7. Building control here can go to Bexley or to an approved inspector, on the same terms as in DA7. |
| DA5 | Old Bexley | Georgian villas, Victorian cottages | Adjoining district to DA7. Building control here can go to Bexley or to an approved inspector, on the same terms as in DA7. |
Roof pitch, wall build-up and plot depth change every few DA7 streets, and each one changes what a building regulations package can achieve at that address.
DA7 (Bexleyheath / Barnehurst) conservation designations: there are 16 across Bexley Council, Welling, Bexley Village, Old Bexley among them. Designation costs a DA7 (Bexleyheath / Barnehurst) owner the permitted-development route: a building regulations package then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Old Bexley is the DA7 (Bexleyheath / Barnehurst) designation that most often changes a building regulations package design.
No blanket Article 4 over DA7 (Bexleyheath / Barnehurst): Bexley Council has not withdrawn permitted development across DA7 (Bexleyheath / Barnehurst), so a building regulations package outside a DA7 (Bexleyheath / Barnehurst) conservation area usually keeps it. The £274 Lawful Development Certificate is still the document a DA7 owner wants on file.
What DA7 (Bexleyheath / Barnehurst) is built from: 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. That mix decides the building regulations package route in DA7 (Bexleyheath / Barnehurst) more than the postcode does, and it is what a Bexley Council case officer reads first. A householder application costs £548 paid to Bexley Council direct, with 8 weeks to a decision once validated.
Sources for this DA7 building regulations package 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.
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