6 Selwyn Gardens Cambridge Cambridgeshire CB3 9AX Data via plota.co.uk

26/03861/HFUL - Householder Works/Extension Awaiting decision

Proposal

Replacement of existing conservatory with a glazed conservatory of similar form, erection of a detached outbuilding for use as a home gym, replacement of two existing vehicular entrance gates with automated sliding timber gates and new pedestrian gate, and alterations to the driveway. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
13 Oct 2026
✓
Validated
20 Oct 2026
Decision
Expected by 15 Dec 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 13 Dec 2026, from Cambridge's recent extensions.

Site constraints 4

West Cambridge 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 ↗
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 Cambridge (Cambridge) built-up area; Priority habitat 39 m away: No main habitat but additional habitats present.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 21 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 2

Last sold for £3,400,000 in December 2025. Other property, freehold.

18 December 2025£3,400,000Recorded as a transfer outside a standard sale
13 November 2018£3,400,000Recorded as a transfer outside a standard sale

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

Building

Floor area348 m² (3,746 sq ft)
Energy ratingE (45 out of 100), could reach C
PropertyDetached house, 12 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in May 2018, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Cambridge
Application type
Householder Works/Extension
Postcode
CB3 9AX
Received
13 Oct 2026
Validated
20 Oct 2026
Ward
Newnham
Case officer
Show
Target decision
15 Dec 2026
Applicant
Show
Agent
Robert Davies Architects Ltd

Decision outlook

Day 8 of the 56-day target. Cambridge usually decides extensions by day 54.

Day 848 days to the 56-day target
82%decided within 8 weeks
96%approved
511decided in the last year

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

Public comments

No public comments yet.

26 neighbours consulted · Last counted 21 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Site or press notice
28 Oct 2026
Statutory expiry
15 Dec 2026
Env. assessment
No
Cambridge
Planning Authority Score
8.3/10
Excellent
#18 of 296 councils
Relevant to this application:
Householder decisions

Cambridge is one of the fastest councils in England for householder decisions, ranking #21 out of 296. Only 26% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (94%) than the national average (90%).

Among the fastest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
Cambridge decision statistics
Based on MHCLG data, the year to March 2026
90%
Overall approval rate
Above avg (87%) #108 of 296
94%
Householder approved
Above avg (90%) #100 of 296
86%
Decided in 8 weeks
Above avg (63%) #21 of 296
26%
Extended time limit
Below avg (41%) #34 of 296
74%
Minor dwellings approved
86 decided (1-9 homes)
80%
Major dwellings approved
5 decided (10+ homes)
80%
Change of use approved
41 decided
1,014
Total decisions
100 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

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.