Skip to content

Letterbox Cottage 11 Grimsdells Lane Amersham Buckinghamshire HP6 6HF

PL/23/1092/FAFull ApplicationApproved
Full

Approved on 2 June 2023

Council decision: Conditional permissionPlanning committee

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Two storey front extension, single storey rear extension, replacement of existing windows and internal alterations

Received
29 March 2023
Decision level
Planning committee
Council
Chiltern South Bucks
Ward
Amersham and Chesham Bois
Agent
Jane Duncan Architects
  1. Received29 Mar
  2. Validated29 Mar
  3. Consult.22 May
  4. Target26 May
  5. Decided2 Jun

Decided in 65 days (council typically 56)

About this application

This is a full planning application for a single storey rear extension at Letterbox Cottage 11 Grimsdells Lane Amersham Buckinghamshire HP6 6HF. Chiltern South Bucks has handled 8,004 applications of this type. This one was decided in 65 days, 9 days longer than Chiltern South Bucks's typical decision time. There have been 4 other applications at this address. We hold 2,232 applications in total for the HP6 postcode area.

82% of full applications at Chiltern South Bucks were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
HP6 6HF
Application type
Full Application
Scale / size
Small
Parish
Amersham

Planning application dates

Date validated
29 March 2023
Consultation expiry
24 May 2023
Consultation start
3 May 2023
Consultation end
22 May 2023
Neighbour consultation start
17 April 2023
Neighbour consultation end
24 May 2023
Last date for comments
24 May 2023
Target decision date
26 May 2023
Committee meeting
30 May 2023

Applicant and agent

Agent
Jane Duncan Architects
Agent address
Chalfont Station Rd Little Chalfont Amersham HP7 9PN

Planning decision

Statutory period
58 days

Additional information

Documents
5

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Article 4 direction: Whole District excluding the Town of Chesham - Poultry production.
  • Tree Preservation Order: TPO/2003/014Protected tree on or next to this site
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Associated applications

  1. 2023
    29 Mar

    Two storey front extension, single storey rear extension, replacement of existing windows and internal…

    This applicationApprovedFullPL/23/1092/FA
  2. 2023
    23 Mar

    Single storey front and rear extensions, replacement of existing windows and internal alterations, new…

    ApprovedFull ApplicationFiled alongsidePL/23/0712/FA

Source: Chiltern South Bucks

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near HP6

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Planning something similar?

See what the council approved and refused for two-storey and first-floor extensions on your street. Pick your home and get the evidence before you pay for drawings.

See what gets approved on your streetBuying this property? Report on this address