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Blackheath (Greenwich) is Georgian villas around the heath. The streetscape is dominated by georgian villas, victorian terraces, which means design decisions — roofscape, rear glazing, side returns, mansards — must respect the period rhythm of the row. Greenwich planning (Greenwich Council) decides applications here. Most permitted development rights apply normally in Greenwich for residential extensions.
Planning permission drawings delivered by an MCIAT chartered team.
Building regulations drawings delivered by an MCIAT chartered team.
Loft conversion drawings delivered by an MCIAT chartered team.
House extension drawings delivered by an MCIAT chartered team.
Mansard roof extensions delivered by an MCIAT chartered team.
Garage conversion drawings delivered by an MCIAT chartered team.
Basement conversion drawings delivered by an MCIAT chartered team.
Structural calculations delivered by an MCIAT chartered team.
Measured building survey delivered by an MCIAT chartered team.
Party wall services delivered by an MCIAT chartered team.
Rear dormer drawings delivered by an MCIAT chartered team.


Blackheath (Greenwich) sits within Greenwich, so applications are decided by Greenwich Council. Most single-storey rear extensions and side-returns on terraced or semi-detached homes in Blackheath (Greenwich) fall under Permitted Development — up to 3m deep (attached) or 4m (detached), under 4m high. Flats, listed buildings and conservation areas always require full planning. Article 4 status here: No. We check eligibility free at the site visit.
Blackheath (Greenwich) is characterised by Georgian villas around the heath. The dominant stock is Georgian villas, Victorian terraces. We've drawn extensions and lofts for every period represented here — Victorian rear additions, Edwardian side returns, 1930s wrap-arounds, and contemporary infill where the streetscape allows.
Greenwich Council statutory determination is 8 weeks for householder applications. Validation typically adds 1–2 weeks. From your first call to a decision, expect 12–14 weeks total: 1 week measured survey, 2 weeks design, 1–2 weeks validation, 8 weeks determination. We've achieved a 98% first-time approval rate across Greenwich.
Construction cost (separate from drawings) is £45,000–£75,000 for a standard rear dormer on a Victorian or Edwardian terrace, £65,000–£95,000 for a hip-to-gable plus dormer.
Greenwich has 20 designated conservation areas. Nearest to Blackheath (Greenwich): Greenwich Town Centre (World Heritage Site). In a conservation area, full planning is required for most external work (including roof additions, rendering, replacement windows). We prepare a Heritage Statement covering the conservation area's character appraisal.

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Every Blackheath (Greenwich) postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. Blackheath (Greenwich) fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| SE3 | Blackheath / Kidbrooke | Georgian villas, Victorian terraces | Blackheath / Kidbrooke is split at SE3. Either Greenwich Council or Lewisham Council can determine a drawing package here, so the SE3 address is checked against both policies maps first. |
| SE10 | Greenwich | Georgian terraces, listed buildings | Neighbouring Greenwich, where drawing package work is handled by the same Greenwich Council case officers. |
| SE7 | Charlton | Victorian villas, 1930s semi-detached | Neighbouring Charlton, where drawing package work is handled by the same Greenwich Council case officers. |
| SE18 | Woolwich | Georgian fragments, post-war estates, new-build | Neighbouring Woolwich, where drawing package work is handled by the same Greenwich Council case officers. |
| SE9 | Eltham | 1930s semi-detached, post-war flats | Neighbouring Eltham, where drawing package work is handled by the same Greenwich Council case officers. |
| SE28 | Thamesmead | Post-war estates, new-build | Neighbouring Thamesmead, where drawing package work is handled by the same Greenwich Council case officers. |
| SE3 | Kidbrooke | New-build, post-war fragments | Neighbouring Kidbrooke, where drawing package work is handled by the same Greenwich Council case officers. |
| SE9 | New Eltham | 1930s semi-detached | Neighbouring New Eltham, where drawing package work is handled by the same Greenwich Council case officers. |
Roof pitch, wall build-up and plot depth change every few Blackheath (Greenwich) streets, and each one changes what a drawing package can achieve at that address.
How designation changes a Blackheath (Greenwich) drawing package: Greenwich Council maintains 20 conservation areas, including Greenwich Town Centre (World Heritage Site), Blackheath, Charlton. Inside any of them a Blackheath (Greenwich) drawing package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Greenwich Town Centre (World Heritage Site) sets the tone for Blackheath (Greenwich) casework.
Article 4 and your Blackheath (Greenwich) drawing package: Greenwich Council has made no borough-wide direction, so permitted development for a drawing package in Blackheath (Greenwich) generally survives outside Blackheath (Greenwich) conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a SE3 owner records that a drawing package was lawful.
What Blackheath (Greenwich) is built from: Georgian in Greenwich town centre; Victorian terraces in East Greenwich, Charlton; inter-war semi-detached in Eltham; new-build along the riverside. World Heritage Site status in Greenwich town centre adds heritage weight; outer borough areas (Eltham, Thamesmead) generally permissive. That mix decides the drawing package route in Blackheath (Greenwich) more than the postcode does, and it is what a Greenwich Council case officer reads first. A householder application costs £548 paid to Greenwich Council direct, with 8 weeks to a decision once validated.
Sources for this Blackheath (Greenwich) drawing 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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