Royal Observatory, Blackheath Avenue, London, SE10 8XJ Data via plota.co.uk

26/1054/SD - Submission of Details 8 Weeks Approved
Admin / procedural

Proposal

Submission of details pursuant to discharge condition 6 (Materials-Entrance Pavilion), condition 7 (Materials- Astronomers Court Lift and Stair Lobby Building),condition 9 (Materials- New ASHP, Switch Room and Refuse Store Enclosures),condition 10 (Blackheath Avenue Railings and Gates Specification) and partial discharge condition 4a (Archaelogical Method Statement and interpretation plan) of planning permission reference dated 31/10/2025. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
1 Apr 2026
✓
Consultation
7 Apr 2026
✓
Approved
9 Jul 2026

Approved on 9 Jul 2026 · Last checked 10 Jul 2026

Documents 17

Decision & officer reports 2

PDF Decision notice Decision Notice · 9 Jul 2026 View ↗ PDF Officers delegated report Report · 9 Jul 2026 View ↗

Plans & drawings 12

PDF Railing masonry sample and mock up Drawing · 9 Jul 2026 View ↗ PDF Planning condition 9 - materials ? new ashp, switch room, refuse store enclosure Drawing · 1 Apr 2026 View ↗ PDF Planning condition 7 - materials ? astronomers' court lift & stair lobby buildin Drawing · 1 Apr 2026 View ↗ PDF Royal observatory site plansouth sitearchaeological management strategy Drawing · 1 Apr 2026 View ↗ PDF Blackheath avenue railings demolitions and removals Drawing · 1 Apr 2026 View ↗ PDF Planning condition 6 - materials ? entrance pavilion Drawing · 1 Apr 2026 View ↗ PDF Royal observatory site plannorth sitearchaeological management strategy Drawing · 1 Apr 2026 View ↗ PDF Blackheath avenue railings proposed Drawing · 1 Apr 2026 View ↗ PDF Bliss gate and railings proposed Drawing · 1 Apr 2026 View ↗ PDF Planetarium fire escape gate and railings demolitions and removals proposed Drawing · 1 Apr 2026 View ↗ PDF Bliss gate and railing demolitions and removals Drawing · 1 Apr 2026 View ↗ PDF Planetarium fire escape gate and railings demolitions and removals Drawing · 1 Apr 2026 View ↗

Application forms 1

PDF Application form redacted Application Form · 1 Apr 2026 View ↗

Other documents 2

PDF Correspondance Correspondence · 7 Apr 2026 View ↗ PDF Cover letter Document · 1 Apr 2026 View ↗

All documents on the council site ↗

Associated applications 3

Site constraints 11

Grade II listed: Altazimuth Pavilion at the Royal Observatory
List entry 1031860 · 2 m away · 6 more listed buildings within 150 m (4 Grade I, 2 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 6 with distances
Historic England ↗
World heritage site: Maritime Greenwich
Nationally designated heritage. Its significance and setting carry great weight.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Blackheath conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
Archaeological priority area
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Greenwich AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Scheduled monument 87 m away: Greenwich Observatory
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
Historic England ↗
National infrastructure project 612 m away: Thames Tideway Tunnel
The site is 612 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: Silvertown Tunnel (decided, 1813 m); London Strategic Heat Main Project (at pre-application, 551 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Habitat network: Wood pasture and parkland
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Radon affected area, class 2; Public transport access: PTAL 1a (very poor), TfL 2023, for the 100 m square; Priority habitat 9 m away: Deciduous woodland.
Not affected
Outside flood zones 2 and 3 · Not green belt

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI), Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council
Greenwich
Application type
Submission of Details 8 Weeks
Postcode
SE10 8XJ
Received
1 Apr 2026
Validated
1 Apr 2026
Ward
GREENWICH PARK
Parish
Greenwich
Case officer
Show
Target decision
27 May 2026
Decision
Approve
Decision date
9 Jul 2026
Applicant
Show
Agent
The Planning Lab

Consultation & key dates

Alt. reference
PP-14828170
Planning Portal ref
PP-14828170
Consultation
7 Apr 2026
Comments by
28 Apr 2026
Statutory expiry
27 May 2026
Env. assessment
No

Historical activity at this location

8 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025 Approved
Erection of a external artist installation within the Meridian Courtyard adjacent to the…
25/4251/F
2025 Approved
An application submitted under Section 73 of the Town & Country Planning Act 1990 for a m…
25/2562/MA
2025 Approved
Refurbishment of the external access lift outside Flamsteed House, the erection of ancill…
25/0105/F
2024 Approved
Full Regeneration of the Royal Observatory Site including (but not limited to) demolition…
24/2640/F
2024 Approved
Installation of 6no. non-illuminated printed advertisement poster panels to the eastern r…
24/2641/A
Within ~100m

Nearby activity

2025 Approved
SOUTH BUILDING, ROYAL OBSERVATORY, BLACKHEATH AVENUE, LONDON, SE10 8XJ
T15 Aesculus hippocastanum (Horse Chestnut) 16 740 5 5 5 5 1 3 M Good Good Reduce tertiar…
25/2652/TC
2025 Approved
SOUTH BUILDING, ROYAL OBSERVATORY, BLACKHEATH AVENUE, LONDON, SE10 8XJ
T77 ? Common Oak Location: Outside observatory boundary but within zone of influence Work…
25/2320/TC
2025 Approved
NATIONAL MARITIME MUSUEM, ROYAL OBSERVATORY, BLACKHEATH AVENUE, LONDON, SE10 8XJ
Submission of details pursuant to Condition 4 Part A (Archaeological Method Statement and…
25/1248/SD
Greenwich
Planning Authority Score
5.4/10
Average
#123 of 296 councils
Relevant to this application:
Householder decisions

Greenwich is faster than most councils at deciding householder applications, ranking #76 out of 296. Only 29% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Greenwich is also one of the strictest councils - it refuses more householder applications than almost any other, with only 78% approved vs 90% nationally.

One of the strictest councils
only 78% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Greenwich decision statistics
Based on MHCLG data, the year to March 2026
77%
Overall approval rate
Below avg (87%) #278 of 296
78%
Householder approved
Below avg (90%) #287 of 296
75%
Decided in 8 weeks
Above avg (63%) #76 of 296
29%
Extended time limit
Below avg (41%) #49 of 296
60%
Minor dwellings approved
114 decided (1-9 homes)
100%
Major dwellings approved
13 decided (10+ homes)
66%
Change of use approved
195 decided
1,468
Total decisions
331 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings