10 Westhill Drive Kettering NN15 7LG Data via plota.co.uk

26/00712/LDP - Lawful Development - Proposed Refused

Proposal

Proposed Lawful Development Certificate for a single storey rear/side extension and demolition of existing side conservatory Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
17 Mar 2026
✓
Validated
9 Apr 2026
✗
Refused
4 Jun 2026
Appeal
Not lodged

Refused on 4 Jun 2026 · Officer Delegated Decision · Last checked 5 Jul 2026

Site constraints 3

Radon affected area, class 6
An estimated 30% or more of homes reach the radon action level. Indicative for the 1 km square, which takes the highest class found in it; a radon test gives the answer for a building.
From the British Geological Survey and UK Health Security Agency indicative atlas. Under building regulations, as the BRE guide BR 211 (2023) sets out, new buildings and extensions need basic radon protection from class 3 in England and Wales and from class 2 in Scotland, and full protection from class 5. The class at the site itself, from the detailed BGS map, decides which.
UKHSA radon ↗
Also on the record
Nature improvement area: Nene Valley; Inside the Kettering built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) 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 3

Last sold for £325,000 in January 2026. Detached house, freehold.

21 January 2026£325,000
27 April 1999£89,000
16 October 1997£71,000

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

Building

Floor area74 m² (797 sq ft)
Energy ratingD (67 out of 100), could reach C
PropertyDetached bungalow, 4 habitable rooms
Built1950 to 1966
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in July 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

Application type
Lawful Development - Proposed
Postcode
NN15 7LG
Received
17 Mar 2026
Validated
9 Apr 2026
Ward
St Peter
Case officer
Show
Target decision
4 Jun 2026
Decision
Refused
Decision date
4 Jun 2026
Decision level
Officer Delegated Decision
Applicant
Show

How this decision compares

Decided in 56 days from validation, 9 days faster than North Northamptonshire's median of 65 for demolitions. Refused, as 21% of demolitions here are.

46%decided within 8 weeks
79%approved
99decided in the last year

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

Consultation & key dates

Alt. reference
PP-14760941
Planning Portal ref
PP-14760941
Statutory expiry
4 Jun 2026
Env. assessment
No
North Northamptonshire
Planning Authority Score
1.3/10
Poor
#285 of 296 councils
Relevant to this application:
Householder decisions

North Northamptonshire is one of the slowest councils in England for householder decisions, ranking #279 out of 296. The council extends the time limit on 64% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are slightly less likely to be approved here (88%) than the national average (90%).

Among the slowest councils in England
for householder decisions
These figures are council-wide context, not a prediction for this application. View full council performance
North Northamptonshire decision statistics
Based on MHCLG data, the year to March 2026
88%
Overall approval rate
Above avg (87%) #157 of 296
88%
Householder approved
Below avg (90%) #220 of 296
35%
Decided in 8 weeks
Below avg (63%) #279 of 296
64%
Extended time limit
Above avg (41%) #277 of 296
74%
Minor dwellings approved
100 decided (1-9 homes)
81%
Major dwellings approved
21 decided (10+ homes)
91%
Change of use approved
75 decided
1,096
Total decisions
132 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.

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.