139 Finedon Road Irthlingborough NN9 5TY Data via plota.co.uk

26/01559/HFUL - Householder Planning Permission Approved

Proposal

Retrospective planning permission for a ground floor rear extension projecting 3m from the original rear wall, including amendments to the scheme previously approved under reference NE/23/00098/FUL Data via plota.co.uk

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View original council record ↗Last checked 24 Aug 2026, 09:11

Street View

Application progress

✓

Received

22 May 2026

✓

Validated

11 Jun 2026

✓

Consultation

23 Jun 2026

✓

Approved

31 Jul 2026

Approved on 31 Jul 2026 · Officer Delegated Decision · Last checked 4 Aug 2026

Documents 5

Associated applications 2

HouseholderApproved31 Jul 202626/01559/HFULThis application
Retrospective planning permission for a ground floor rear extension projecting 3m from the original rear wall…
FullApproved22 Feb 2023NE/23/00098/FUL
Single storey Rear extension not exceeding 3.6m in height

Site constraints 4

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

1 listed building within 150 m; Inside the Irthlingborough built-up area; 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. 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 £175,000 in April 2021. Semi-detached house, freehold.

20 April 2021£175,000

27 May 2005£121,000

12 December 2003£82,137

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

Building

Floor area80 m² (861 sq ft)

Energy ratingE (51 out of 100), could reach B

PropertySemi-detached house, 3 habitable rooms

Built1900 to 1929

HeatingBoiler and radiators, mains gas

WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in December 2020, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

25 Sept 2026Pending

121 Finedon Road Irthlingborough NN9 5TY

Demolition of the existing conservatory and erection of a single-storey rear ext...

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26 Aug 2026Approved

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Erection of brick based greenhouse in rear of garden 15ft x 20ft height 3545mm

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17 Aug 2026Pending

81 Finedon Road Irthlingborough NN9 5TY

Proposed single story rear extension and two storey infill side extension / link...

26/02134/HFUL

26 May 2026Approved

76 Finedon Road Irthlingborough NN9 5TZ

Two-storey rear extension

26/01445/HFUL

Nearby new applications

25 Sept 2026Pending

121 Finedon Road Irthlingborough NN9 5TY

Demolition of the existing conservatory and erection of a single-storey rear ext...

26/02746/HFUL

4 Sept 2026Pending

Irthlingborough Junior School College Street Irthlingborough NN9 5TX

New ASHP unit with timber acoustic enclosure

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26 Aug 2026Approved

53 Finedon Road Irthlingborough NN9 5TY

Erection of brick based greenhouse in rear of garden 15ft x 20ft height 3545mm

26/01550/HFUL

17 Aug 2026Pending

81 Finedon Road Irthlingborough NN9 5TY

Proposed single story rear extension and two storey infill side extension / link...

26/02134/HFUL

Important details

Council: North Northamptonshire
Application type: Householder Planning Permission
Postcode: NN9 5TY
Received: 22 May 2026
Validated: 11 Jun 2026
Ward: Irthlingborough
Parish: Irthlingborough CP
Case officer: Show
Target decision: 6 Aug 2026
Decision: Application Permitted/Approved
Decision date: 31 Jul 2026
Decision level: Officer Delegated Decision
Applicant: Show
Agent: Add Value Home Ltd

How this decision compares

Decided in 50 days from validation, 13 days faster than North Northamptonshire's median of 63 for extensions. Approved, as 87% of extensions here are.

This one50d

Council63d

UK55d

45%decided within 8 weeks

87%approved

562decided in the last year

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

Public comments

No public comments yet.

3 neighbours consulted · Last counted 4 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours: 24 Jun 2026
Consultation: 23 Jun 2026
Comments by: 15 Jul 2026
Statutory expiry: 6 Aug 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

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.