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A newly built house with a rendered facade, the kind of clean-lined infill going up on riverside plots across London.
SE18 · Woolwich · Greenwich

Planning and building regulation drawings in Woolwich (SE18)

Woolwich reads as two towns stitched together. Walk up from the river and you find Georgian and Victorian terraces climbing toward Woolwich Common, on streets that include Sandy Hill Road and Rectory Place among others rising from the town centre. Walk the other way and you land in the Royal Arsenal Riverside, where twenty-first-century apartment blocks sit alongside converted former military buildings, and the questions homeowners bring us are about a different set of constraints: shared freeholds, management company sign-off, and, for some of those buildings, listed status.

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  • Royal Borough of Greenwich granted 78% of 647 householder applications
  • Drawings in about 7 days

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What people actually build here follows that split. In the terraced streets near the town centre and Powis Street, it's rear and side-return extensions, and loft conversions that add a bedroom without breaking the roofline. Around the Royal Arsenal, it's internal reconfiguration and small structural openings inside flats, since the external envelope of a listed former armaments building isn't something an owner can touch without a formal listed-building consent process running alongside any planning application. Woolwich Common itself, and the Grade I listed Royal Artillery Barracks that anchors its southern edge, shape what's realistic on the streets nearest that green edge too, since anything visible from the common gets read against that setting.

Greenwich doesn't publish its household Article 4 schedule to the national register, which means we can't tell you from open data alone whether your specific roof extension or garage conversion still counts as permitted development. What we can say is that the Woolwich, Royal Arsenal and Woolwich Common conservation areas are the controls that actually decide most cases here, and we check the schedule against your address with the council before we draw anything.

Planning in Woolwich: what to know before you apply

The Royal Borough of Greenwich assesses householder applications against the conservation area your street sits in, and Woolwich, Royal Arsenal and Woolwich Common each carry slightly different expectations for materials, window proportions and roof alterations. Inside the Royal Arsenal conservation area, the volume of listed Georgian and Victorian buildings means the council applies close scrutiny and its own design guidance to anything touching windows, brickwork or roofscape, even for works that would be unremarkable elsewhere. A side extension or loft dormer inside any of these conservation areas is not automatically permitted development, and the larger-home-extension prior approval route isn't available inside a conservation area either, so we start every project by confirming what's actually allowed at your specific address rather than assuming a standard route applies. Because the household Article 4 position isn't published nationally for this borough, that confirmation step matters more here than in a district where the schedule is open to check in advance. We build the drawing package around whatever the council's answer turns out to be, through a full planning application, so there's no redesign later.

Applications are decided by Royal Borough of Greenwich its planning pages.

Check your route

Does your Woolwich project need planning permission?

Route check · Woolwich (SE18)

Listed building?
Conservation area?
Likely permitted development — no planning applicationNeeds checking
  • A single-storey rear extension up to 4 m deep on a detached house, or 3 m on any other house, is Class A permitted development subject to the height and materials conditions.
  • An Article 4 direction applies here and may withdraw this freedom — the schedule must be checked before relying on it.
  • One or more constraints are unknown — we check the council's registers as part of the free appraisal.
  • Where permitted development applies, a lawful development certificate proves it for lenders and buyers.

Sources: GPDO 2015, Schedule 2, Part 1 · Planning Portal — common projects · Building Regulations 2010 — when approval is needed

This is a first-pass indication from the national rules, not planning advice for your property. Your council's registers, any Article 4 schedule and the exact dimensions decide it — the free appraisal checks all three before we recommend a route.

Confirm it with a free appraisal

Woolwich (SE18) in numbers

What Royal Borough of Greenwich has decided, and what SE18 is built of — the two facts that shape every job here.

Householder planning decisions — Royal Borough of Greenwich

Woolwich (SE18) applications are decided by Royal Borough of Greenwich; these are its published householder figures for the last four quarters.

Householder applications decided2025 Q2 to 2026 Q1647
Granted502
Refused145
Grantedof 647 decisions · England 90%78%
Decided within 8 weeksof 514, excluding prior approvals94%

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Permitted development prior approvals — Royal Borough of Greenwich

How the larger-home-extension route has fared with Royal Borough of Greenwich, which decides SE18 notifications.

Larger home extension prior approvals — not required2024 Q2 to 2026 Q10
Prior approval granted154
Prior approval refused126
Grantedof 280 determined55%

Source: Ministry of Housing, Communities and Local Government (PS1 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Planning appeals — Royal Borough of Greenwich

Refusals in SE18 can be appealed to the Planning Inspectorate; this is Royal Borough of Greenwich's householder appeal record.

Householder appeals determined2021–2026344
Allowed157
Allowedof 344 · England 36%46%

Source: Planning Inspectorate appeals casework. Open Government Licence v3.0 Extracted 2026-09-22.

Conservation areas and Article 4 directions — Royal Borough of Greenwich

Register counts for Royal Borough of Greenwich. A count describes what the council has published, never a rank against another council.

Conservation areas in the register14

Source: MHCLG Planning Data Platform. Open Government Licence v3.0 Extracted 2026-09-22.

What SE18 is built of

Residential building form across Woolwich (SE18), from 490 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.

Attached on more than one side69%
Attached on one side29%
Detached2%
Median building footprint54 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate2.06
Buildings classified490

Source: Ordnance Survey National Geographic Database (derived statistics). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Extracted 2026-09-22.

  1. Day 0Measured survey of your Woolwich property — or your existing plans if you have them.
  2. About 7 daysDrawings issued for your approval. Free redraws until you are happy.
  3. SubmissionWe validate against Royal Borough of Greenwich’s checklist and submit on your behalf.
  4. Council: 8-week targetHouseholder applications carry an 8-week statutory target. Royal Borough of Greenwich decided 94% of 514 recent householder applications inside it.

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

FAQ

Woolwich (SE18) — FAQs

Can I add a rear extension to my terraced house near Powis Street?+
Most of the terraced streets around the town centre and Woolwich New Road sit within reach of a straightforward rear or side-return extension, but several of them fall inside the Woolwich conservation area, which affects roofline, materials and how far back a single-storey addition can go. We check the conservation area boundary and the Article 4 position for your address before confirming the route, since the published national data doesn't cover this borough's household directions.
I own a flat in the Royal Arsenal Riverside — can I change the internal layout?+
It depends which building you're in. A flat inside one of the converted listed military buildings needs listed-building consent for alterations on top of any planning permission, while a flat in one of the newer blocks doesn't carry that requirement, though it still sits within the Royal Arsenal conservation area and under its own lease terms. We check which applies to your building before drawing anything, and where a lease or management company also has to sign off, we prepare the package to answer both sets of requirements at once.
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