18 High Street Harrington NN6 9NU Data via plota.co.uk

26/01657/PDE - Part 1, Class A - Larger House Extension Decided

Proposal

Single storey extension to extend beyond the rear wall of the original property by 7m with a maximum height of 3.25m and eaves height of 2.30m Data via plota.co.uk

View original council record ↗Last checked

Application progress

Received
15 Jun 2026
Consultation
24 Jun 2026
Prior Approval Not Required
20 Jul 2026

Prior Approval Not Required on 20 Jul 2026 · Officer Delegated Decision · Last checked 21 Jul 2026

Site constraints 5

Agricultural land, grade 2
Best and most versatile land (grades 1, 2 and 3a). Predicted from the national soil map. The older provisional map, which most planning maps still show, had this area as grade 3. The predicted grade is Defra's current estimate; only a site survey settles it.
Where development of farmland is needed, policy prefers poorer land over the best and most versatile (grades 1, 2 and 3a). Three sources: Natural England's post-1988 field surveys, which are definitive where they exist; the Defra predictive map for England (2025) and the Welsh Government predictive map, modelled from the soil map with 3a and 3b split; and the 1970s provisional map, which planners and other services still show, coarser and with grade 3 undivided. Where the provisional and predicted grades disagree, treat the predicted grade as the current estimate and expect an application to carry its own survey.
Conservation area 20 m away: Harrington
The edge of the area; work outside it can still affect its setting.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Also on the record
2 listed buildings within 150 m; Scheduled monument 236 m away: Site of manor house; Registered park or garden 234 m away: Harrington.
Not affected
Outside flood zones 2 and 3 · Not green belt

Checked on 11 September 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.

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Important details

Application type
Part 1, Class A - Larger House Extension
Postcode
NN6 9NU
Received
15 Jun 2026
Validated
15 Jun 2026
Ward
Rothwell & Mawsley
Parish
Harrington CP
Case officer
Show
Target decision
27 Jul 2026
Decision
Prior Approval Not Required
Decision date
20 Jul 2026
Decision level
Officer Delegated Decision
Applicant
Show

Consultation & key dates

Alt. reference
PP-14974203
Neighbours
24 Jun 2026
Comments by
15 Jul 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