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

Decided NK/2023/0201

Appeal: Dismissed · 9 Dec 2025 · Written Representations · Inspectorate case 3374434 ↗

Council

North Northamptonshire 1.3/10

Date received

29 Mar 2023

Date validated

29 Mar 2023

Postcode

NN14 2PY

Description

(Single storey rear extension with new porch area to front. Render finish to be applied to existing dwelling and proposed extension): Alterations to front porch design and window locations, add back door, render finish not required Data via plota.co.uk

Get alerts nearby Council site ↗

Last checked 16 Oct 2026, 06:33

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 14 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 1

Last sold for £270,000 in June 2017. Detached house, freehold.

16 June 2017£270,000

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

Building

Floor area72 m² (775 sq ft)

Energy ratingD (66 out of 100), could reach B

PropertyDetached bungalow, 4 habitable rooms

Built1967 to 1975

HeatingBoiler and radiators, mains gas

WallsCavity wall, filled cavity

From the energy performance certificate lodged in February 2017, 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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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

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.