Henley House School Lane Medmenham Buckinghamshire SL7 2HJ Data via plota.co.uk

PL/26/01502/NMA - Non Material Amendment Approved

Proposal

Proposed non-material amendment to permission (Householder application for a two storey front extension, first floor side extension, part two storey/part single storey rear extension and single storey rear veranda, loft conversion incorporating roof extension and rooflights, changes to external appearance including installation of render and cladding, fenestration alterations including the insertion of a first-floor rear juliet balcony, alterations to hardsurfacing at front of site and new front entrance gates for vehicular and pedestrian access (Part- Retrospective) ) granted under planning permission PL/25/3828/FA - To allow for addition of Phasing Plan Data via plota.co.uk

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View original council record ↗Last checked 24 Sept 2026, 04:38

Street View

Application progress

✓

Received

around 23 Feb 2026

✓

Approved

23 Mar 2026

Approved on 23 Mar 2026 · Delegated Decision · Last checked 24 Sept 2026

Documents 3

Decision & officer reports 2

PDF CASE OFFICER REPORT DELEGATED Case Officer Report · 23 Mar 2026 View ↗ PDF DECISION Decision Notice · 23 Mar 2026 View ↗

Statements & assessments 1

PDF ECOLOGY-AND-TREES-CHECKLIST Additional Information · 23 Feb 2026 View ↗

All documents on the council site ↗

Associated applications 3

Part of

HouseholderDecided17 Sep 2025PL/25/3828/FA
Householder application for a two storey front extension, first floor side extension, part two storey/part single storey rear…
Conditions 1, 7 varied
- AmendmentProposed non-material amendmentThis application23 Feb 2026PL/26/01502/NMA
- VariationVariation of conditions 1 (materials) and 7 (approved plans) - amended3 Jun 2026PL/26/04526/VRC

Site constraints 9

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.

Medmenham conservation area

Demolition needs planning permission and permitted development is restricted.

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.

Council document ↗

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.

Agricultural land, grade 5

Very poor quality farmland, not best and most versatile. Source: the Predictive Agricultural Land Classification Map (Defra and Natural England, 2025; the Welsh Government's Predictive ALC Map 2 in Wales), a model rather than a site survey. Natural England's Provisional ALC map (1:250,000, 1970s), 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.

Scheduled monument 81 m away: A slight univallate hillfort known as Medmenham Camp

Its setting is a consideration for work nearby.

Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.

Historic England ↗

Habitat network: Network Enhancement Zone 1

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

Also on the record

Radon affected area, class 2; 1 listed building within 150 m; Priority habitat 26 m away: Traditional orchard.

Not affected

Outside flood zones 2 and 3 · Not green belt

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 1

Last sold for £2,320,000 in May 2025. Detached house, freehold.

30 May 2025£2,320,000

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

Building

Floor area395 m² (4,252 sq ft)

Energy ratingD (55 out of 100)

PropertyDetached house, 8 habitable rooms

Built1950 to 1966

HeatingBoiler and radiators, oil, Air source heat pump, radiators, electric

WallsCavity wall, filled cavity

From the energy performance certificate lodged in May 2022, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council: Buckinghamshire
Application type: Non Material Amendment
Postcode: SL7 2HJ
Received: around 23 Feb 2026
Validated: 23 Feb 2026
Ward: Chiltern Villages
Parish: Medmenham
Case officer: Show
Target decision: 23 Mar 2026
Decision: Non material amendt-accepted
Decision date: 23 Mar 2026
Decision level: Delegated Decision
Applicant: Show
Agent: DMH Planning Limited

Public comments

No public comments yet.

Last counted 24 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Statutory expiry: 23 Mar 2026
Env. assessment: No

Historical activity at this location

1 nearby application on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025

Merlin House School Lane Medmenham Buckinghamshire SL7 2HJ

Proposed relocation of the front door to suit the remodelled entrance hallway, single sto…

PL/25/6148/FA 4 Dec 2025

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

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.