Blackthorns Forty Green Road Forty Green Buckinghamshire HP9 1XS Data via plota.co.uk

PL/26/04085/DE - Details/reserved matters to outline Approved

Proposal

Reserved matters application for approval of appearance and layout following outline planning permission (Outline permission for demolition of existing dwelling and storage units and construction of single storey dwelling and associated driveway (matters to be considered at this stage: access, landscaping and scale) Data via plota.co.uk

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View original council record ↗Last checked 24 Aug 2026, 09:18

Application progress

✓

Received

27 May 2026

✓

Consultation

8 Jun 2026

✓

Approved

12 Aug 2026

Approved on 12 Aug 2026 · Delegated Decision · Last checked 13 Aug 2026

Documents 11

Site constraints 6

Green belt: London

Inappropriate development needs very special circumstances.

Green belt policy allows a short list of exceptions, such as limited extensions and replacement buildings. Anything else needs very special circumstances that clearly outweigh the harm.

Chilterns National Landscape

Great weight to conserving the landscape; major development restricted.

Previously an area of outstanding natural beauty, which is still the designation in law. Since 2023 authorities must seek to further its purpose, not merely have regard to it.

Article 4 direction

Whole District excluding the Town of Chesham - 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 Named permitted development rights are withdrawn here.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.

Habitat network: Other Priority Habitats - NEZ

Where habitat is joined up enough to work as a network. Context, not a constraint on its own.

Also on the record

Priority habitat 12 m away: Deciduous woodland; the 1970s provisional farmland map 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 · No listed building at the site · No scheduled monument at the site

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

Council: Buckinghamshire
Application type: Details/reserved matters to outline
Postcode: HP9 1XS
Received: 27 May 2026
Validated: 27 May 2026
Ward: Penn, Tylers Green and Loudwater
Parish: Penn
Case officer: Show
Target decision: 22 Jul 2026
Decision: Reserved matters details approved
Decision date: 12 Aug 2026
Decision level: Delegated Decision
Applicant: Show
Agent: TPA Studio

How this decision compares

Decided in 77 days from validation, 21 days slower than Buckinghamshire's median of 56 for demolitions. Approved, as 83% of demolitions here are.

This one77d

Council56d

UK55d

55%decided within 8 weeks

83%approved

151decided in the last year

Plota live figures for demolitions decided by Buckinghamshire in the last twelve months, from validation. Buckinghamshire decision record →

Public comments

No public comments yet.

2 neighbours consulted · Last counted 13 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours: 8 Jun 2026
Consultation: 8 Jun 2026
Comments by: 29 Jun 2026
Site or press notice: 8 Jul 2026
Env. assessment: No

Buckinghamshire

Planning Authority Score

1.3/10

Poor

#284 of 296 councils

Relevant to this application:

Major dwellings

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