Millbrook Cottage Lower Icknield Way Longwick Buckinghamshire HP27 9SA Data via plota.co.uk

PL/26/01932/EU - Certificate of lawfulness - existing Refused

Proposal

Certificate of lawfulness for the retention of the use of the existing annexe as a separate residential unit Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
10 Apr 2026
✗
Refused
10 Jun 2026
Appeal
Not lodged

Refused on 10 Jun 2026 · Delegated Decision · Last checked 12 Jul 2026

Site constraints 4

2 listed buildings within 150 m of the postcode pin
Nearest: Longwick Mill (Gb Gomme and Son), Grade II, about 9 m from the postcode pin · 1 Grade II
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show all 2 with distances
Historic England ↗
Article 4 direction
Former Wycombe Rural District - Poultry Production. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Also on the record
Inside the Longwick built-up area; Natural England's Provisional ALC map (1:250,000, 1970s) had this area as grade 4, 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 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 2

Last sold for £825,000 in December 2024. Detached house, freehold.

13 December 2024£825,000
12 February 2016£445,000

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

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Important details

Application type
Certificate of lawfulness - existing
Postcode
HP27 9SA
Received
10 Apr 2026
Validated
10 Apr 2026
Ward
Princes Risborough
Parish
Longwick Cum Ilmer
Case officer
Show
Target decision
5 Jun 2026
Decision
Cert of Law EXISTING-refuse use
Decision date
10 Jun 2026
Decision level
Delegated Decision
Applicant
Show

Consultation & key dates

Statutory expiry
5 Jun 2026
Env. assessment
No
Buckinghamshire
Planning Authority Score
1.3/10
Poor
#284 of 296 councils
Relevant to this application:
Householder decisions

Buckinghamshire is one of the slowest councils in England for householder decisions, ranking #280 out of 296. 55% of applications have the time limit extended, above the 41% national average. Householder applications are slightly less likely to be approved here (86%) 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
Buckinghamshire decision statistics
Based on MHCLG data, the year to March 2026
84%
Overall approval rate
Below avg (87%) #217 of 296
86%
Householder approved
Below avg (90%) #241 of 296
34%
Decided in 8 weeks
Below avg (63%) #280 of 296
55%
Extended time limit
Above avg (41%) #248 of 296
76%
Minor dwellings approved
491 decided (1-9 homes)
82%
Major dwellings approved
71 decided (10+ homes)
82%
Change of use approved
131 decided
4,446
Total decisions
690 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.