8 Leys Avenue Desborough NN14 2PY Data via plota.co.uk

26/00628/NMA - Non-Material Amendment Approved

Proposal

(Two storey rear extension): Amendment to approved plans Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
6 Mar 2026
✓
Validated
15 Apr 2026
✓
Consultation
8 Jun 2026
✓
Approved
17 Jul 2026

Approved on 17 Jul 2026 · Officer Delegated Decision · Last checked 17 Jul 2026

Associated applications 2

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    FullApprovedcouncil archive
    • Amendment(Two storey rear extension): Amendment to approved plansThis application26/00628/NMA

Site constraints 6

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 ↗
Local nature reserve about 317 m away: Tailby Meadow
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.
Also on the record
Nature improvement area: Nene Valley; Inside the Desborough built-up area; National infrastructure project about 1592 m away: Weston Marsh to East Leicestershire, at pre-application; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 3, but it predates the buildings here and the current map does not class it as farmland.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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 4

Last sold for £407,000 in August 2025. Detached house, freehold.

22 August 2025£407,000
18 March 2024£261,500Recorded as a transfer outside a standard sale
17 October 1997£75,000
14 October 1996£59,000

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

Building

Floor area120 m² (1,292 sq ft)
Energy ratingC (70 out of 100)
PropertyDetached house, 4 habitable rooms
Built1967 to 1975
HeatingBoiler and radiators, mains gas
WallsCavity wall, filled cavity

From the energy performance certificate lodged in October 2023, 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
Non-Material Amendment
Postcode
NN14 2PY
Received
6 Mar 2026
Validated
15 Apr 2026
Ward
Desborough
Parish
Desborough CP
Case officer
Show
Target decision
13 May 2026
Decision
Application Permitted/Approved
Decision date
17 Jul 2026
Decision level
Officer Delegated Decision
Applicant
Show

Consultation & key dates

Alt. reference
PP-14760416
Planning Portal ref
PP-14760416
Consultation
8 Jun 2026
Comments by
29 Jun 2026
Statutory expiry
13 May 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.