15 Deben Road, Colchester CO4 3UZ Data via plota.co.uk

261604 - Full (8 Week Determination) Application Valid

Proposal

Erection of a single storey part-rear and part-side extension, infill front extension with associated internal alterations, and extension tothe part existing lowered patio. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
1 Sept 2026
✓
Validated
28 Sept 2026
Decision
Expected by 23 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 23 Nov 2026, from Colchester's recent extensions.

Comments are open until 19 Oct 2026

Comment on this application ↗

Site constraints 4

Local nature reserve 38 m away: Welsh Wood
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.
Protected tree 9 m away: Birch (Betula spp.), order 17B/97
2 protected trees within 15 m. Named in a tree preservation order: work to it, its roots included, needs the council's consent first.
Root protection areas reach up to 15 m from a large tree, so an extension or new foundations this close usually needs a tree survey. Only some councils publish their single trees, and a position can be approximate: the order at the council is the definitive record, and no tree shown is not proof there is none.
Show all 2 trees with distances
Tree record ↗
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 Colchester built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No listed building at the site

Checked on 6 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 4

Last sold for £560,000 in July 2024. Semi-detached house, freehold.

5 July 2024£560,000
23 September 2011£350,000
4 February 2005£286,250
8 August 2001£178,000

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

Building

Floor area166 m² (1,787 sq ft)
Energy ratingC (72 out of 100), could reach B
PropertyDetached house, 7 habitable rooms
Built1976 to 1982
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, partial insulation (assumed)

From the energy performance certificate lodged in February 2024, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Colchester
Application type
Full (8 Week Determination)
Postcode
CO4 3UZ
Received
1 Sept 2026
Validated
28 Sept 2026
Ward
St Anne's & St John's
Parish
Colchester
Case officer
Show
Target decision
23 Nov 2026
Applicant
Show
Agent
Tricon Design LTD

Decision outlook

Day 11 of the 56-day target. Colchester usually decides extensions by day 56.

Day 1145 days to the 56-day target
66%decided within 8 weeks
84%approved
437decided in the last year

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

Consultation & key dates

Comments by
19 Oct 2026
Colchester
Planning Authority Score
6.2/10
Average
#91 of 296 councils
Relevant to this application:
Householder decisions

Colchester is faster than most councils at deciding householder applications, ranking #43 out of 296. Only 27% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Colchester is also one of the strictest councils - it refuses more householder applications than almost any other, with only 84% approved vs 90% nationally.

One of the strictest councils
only 84% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Colchester decision statistics
Based on MHCLG data, the year to March 2026
82%
Overall approval rate
Below avg (87%) #245 of 296
84%
Householder approved
Below avg (90%) #255 of 296
79%
Decided in 8 weeks
Above avg (63%) #43 of 296
27%
Extended time limit
Below avg (41%) #39 of 296
67%
Minor dwellings approved
69 decided (1-9 homes)
85%
Major dwellings approved
13 decided (10+ homes)
75%
Change of use approved
89 decided
1,074
Total decisions
188 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.