254A Grand Drive, Raynes Park, Merton, SW20 9NE Data via plota.co.uk

26/FULL/2021 - Full Planning Permission Pending Consideration

Proposal

Erection of a single storey rear extension and rear roof extension associated wth the conversion of upper floors to 2x self contained flats. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
11 Sept 2026
Decision
Expected by 6 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 14 Nov 2026 and 12 Dec 2026, from Merton's recent changes of use.

Comments are open until 30 Oct 2026

Comment on this application ↗

Documents 22

All documents on the council site ↗

Site constraints 7

Flood zone 2, rivers and sea
Medium chance: between a 1 in 100 and 1 in 1,000 annual chance from rivers, or 1 in 200 to 1 in 1,000 from the sea. Any development here needs a flood risk assessment. Defences are not counted.
The Environment Agency flood map for planning. Homes in zone 3 must also pass the sequential test. Surface water flooding is a separate map.
Flood map ↗
Air quality management area: Merton 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 ↗
Local nature reserve 174 m away: Derwent Floodwash
Work nearby can need a habitats assessment.
Harm to a protected site is only accepted where there is no alternative and an overriding public interest.
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
Also on the record
Inside the Merton built-up area; Public transport access: PTAL 2 (poor), TfL 2023, for the 100 m square; Metropolitan Open Land 53 m away.
Not affected
Not green belt · No listed building at the site · No scheduled monument at the site

Checked on 17 October 2026. Historic England, the Environment Agency, Natural England, 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.

Building

Floor area100 m² (1,076 sq ft)
Energy ratingD (65 out of 100), could reach C
PropertyMid-terrace maisonette, 5 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in March 2025, the latest held for this property, matched to this application by its address. The building may have changed since. View the certificate

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Important details

Council
Merton
Application type
Full Planning Permission
Postcode
SW20 9NE
Received
11 Sept 2026
Validated
11 Sept 2026
Ward
Lower Morden
Case officer
Show
Target decision
6 Nov 2026
Decision level
Delegated
Applicant
Show
Agent
Lusher Architects

Decision outlook

Day 39 of the 56-day target. Merton usually decides changes of use by day 81.

Day 3942 days to the predicted decision (day 81)
30%decided within 8 weeks
70%approved
139decided in the last year

Plota live figures for changes of use decided by Merton in the last twelve months, from validation. Merton decision record →

Consultation & key dates

Comments by
30 Oct 2026
Statutory expiry
6 Nov 2026
Merton
Planning Authority Score
4.5/10
Below average
#173 of 296 councils
Relevant to this application:
Householder decisions

Merton ranks #196 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (92%) than the national average (90%).

These figures are council-wide context, not a prediction for this application. View full council performance
Merton decision statistics
Based on MHCLG data, the year to March 2026
89%
Overall approval rate
Above avg (87%) #135 of 296
92%
Householder approved
Above avg (90%) #158 of 296
57%
Decided in 8 weeks
Below avg (63%) #196 of 296
39%
Extended time limit
Below avg (41%) #139 of 296
54%
Minor dwellings approved
82 decided (1-9 homes)
100%
Major dwellings approved
11 decided (10+ homes)
83%
Change of use approved
24 decided
1,079
Total decisions
115 refused in the year to March 2026

Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.