42 Mycenae Road, Blackheath, London, SE3 7SG Data via plota.co.uk

26/1543/HD - Householders Registered

Proposal

Demolition of existing conservatory and construction of a single storey rear extension, landscaping alterations and other associated works. [Amended Description, Re-consultation] Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
20 May 2026
✓
Validated
1 Jun 2026
✓
Consultation
4 Jun 2026
Decision
Expected by 27 Jul 2026

This application is under consideration - no decision has been issued yet. Plota predicted a decision around 5 Oct 2026; it is now day 126. The consultation period closed on 1 Jul 2026.

Site constraints 6

Heritage at risk: Westcombe Park, Greenwich
On the register of historic places assessed as at risk.
A designated building, monument, park or conservation area assessed as at risk from neglect, decay or development. Proposals that secure its future are looked on favourably.
Historic England ↗
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 ↗
Conservation area 20 m away
The edge of the area; work outside it can still affect its setting.
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.
Also on the record
Inside the Greenwich built-up area; Priority habitat 22 m away: Deciduous woodland; Designated open space 23 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 1 October 2026. Historic England, the Environment Agency, Natural England 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.

Sales history 1

Last sold for £1,336,000 in August 2024. Detached house, freehold.

23 August 2024£1,336,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

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Important details

Council
Greenwich
Application type
Householders
Postcode
SE3 7SG
Received
20 May 2026
Validated
1 Jun 2026
Ward
BLACKHEATH WESTCOMBE
Parish
Greenwich
Case officer
Show
Applicant
Show
Agent
2PM Architects

Decision outlook

Day 126, past the statutory target. 92% of demolitions in Greenwich are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 1 Oct 2026.

Day 12670 days past the 56-day target
73%decided within 8 weeks
73%approved
107decided in the last year

Plota live figures for demolitions decided by Greenwich in the last twelve months, from validation. Greenwich decision record →

Public comments

1comment received
1 objecting

8 neighbours consulted · Last counted 1 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14925097
Consultation
4 Jun 2026
Comments by
1 Jul 2026
Env. assessment
No
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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use