15 Long Wall Haddenham Buckinghamshire HP17 8DL Data via plota.co.uk

PL/26/07407/FA - Full Application Registered
Extensions & alterations

Proposal

Householder application for the construction of a single storey rear extension (replacing existing conservatory), partial garage conversion and fenestration alterations to the existing house. Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
15 Sept 2026
✓
Consultation
17 Sept 2026
Decision
Expected by 10 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision around 10 Nov 2026, from Buckinghamshire's recent extensions.

Comments are open until 14 Oct 2026

Comment on this application ↗

Documents 2

Statements & assessments 1

PDF ECOLOGY CHECKLISTV3 Additional Information · 15 Sept 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form and Certificate · 15 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 5

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 ↗
15 listed buildings within 150 m
Nearest: Witchert Wall Fronting Station Road West of Number 8 (Swiss Cottage), Returning North Along Townside, Grade II, 28 m away · 15 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 15 with distances
Historic England ↗
Conservation area 23 m away: Haddenham
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.
Council document ↗
Also on the record
Inside the Haddenham (Buckinghamshire) 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 £725,000 in September 2025. Semi-detached house, freehold.

12 September 2025£725,000
31 January 2003£390,000
22 October 1998£250,000

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

Building

Floor area122 m² (1,313 sq ft)
Energy ratingD (68 out of 100), could reach B
PropertyDetached house, 8 habitable rooms
Built1983 to 1990
HeatingBoiler and radiators, mains gas
WallsCavity wall, as built, insulated (assumed)

From the energy performance certificate lodged in April 2025, the latest held for this property. The building may have changed since. View the certificate

Work with planning data?

Every application in Buckinghamshire - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Other new applications on this street

8 Sept 2026Pending

6 Long Wall Haddenham Buckinghamshire HP17 8DL

Certificate of Lawfulness for proposed single storey rear extension to house. Al...

PL/26/07223/SA

Nearby new applications

1 Oct 2026Pending

West Barn Church End Haddenham Buckinghamshire HP17 8AH

Householder application for alterations to the rear elevation and changes to fen...

PL/26/07939/FA
28 Sept 2026Pending

8 Crabtree Road Haddenham Buckinghamshire HP17 8AT

Householder application for a loft conversion above the existing single storey r...

PL/26/07802/FA
21 Sept 2026Pending

21A Slave Hill Haddenham Buckinghamshire HP17 8AY

Householder application for the installation of solar panels on side roof elevat...

PL/26/07388/FA
17 Sept 2026Pending

Grenville Manor Aston Road Haddenham Buckinghamshire HP17 8AF

Remove to ground level as dying x 1 Apple (T1), reduce by a maximum of 2 meters ...

PL/26/07504/KA
15 Sept 2026Pending

St Tiggywinkles Aston Road Haddenham Buckinghamshire HP17 8AF

New student facility

PL/26/06743/FA
15 Sept 2026Decided

The Lodge 21A High Street Haddenham Buckinghamshire HP17 8ES

Removal of x 1 Robinia, x 1 Acer, x 1 Leylandii and reduction of height by 3.00m...

PL/26/07434/KA

Important details

Council
Buckinghamshire
Application type
Full Application
Postcode
HP17 8DL
Received
15 Sept 2026
Validated
15 Sept 2026
Ward
Haddenham and Stone
Parish
Haddenham
Case officer
Show
Target decision
10 Nov 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Wolstenholme Limited

Decision outlook

Day 24 of the 56-day target. Buckinghamshire usually decides extensions by day 56.

Day 2432 days to the 56-day target
54%decided within 8 weeks
82%approved
2,226decided in the last year

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

Public comments

No public comments yet.

9 neighbours consulted · Last counted 8 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Neighbours
17 Sept 2026
Consultation
17 Sept 2026
Comments by
14 Oct 2026
Site or press notice
23 Sept 2026
Statutory expiry
10 Nov 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
11 Station Road Haddenham Buckinghamshire HP17 8AN
Crab Apple Tree - Basic Pruning (up to 1.2m)
PL/25/5209/KA
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
Source: MHCLG planning statistics · See full council rankings

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.