Dr Challoners Grammar School Chesham Road Amersham Buckinghamshire HP6 5HA
Approved on 11 September 2020
Council decision: Conditional permissionDelegated (officer decision)
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 extension over existing single storey laboratory with enclosed fire escape stair and flues, rebuilding of bridge corridor and changes to doors
- Received
- 13 May 2020
- Decision level
- Delegated (officer decision)
- Council
- Chiltern South Bucks
- Ward
- Amersham and Chesham Bois
- Agent
- Blackwood Architects Ltd
- ReceivedReceived13 May
- ValidatedValidated13 May
- Consult.Consultation12 Jun
- TargetTarget Date4 Sep
- DecidedDecided11 Sep
Decided in 121 days (council typically 56)
About this application
This is a full planning application for an extension at Dr Challoners Grammar School Chesham Road Amersham Buckinghamshire HP6 5HA. Chiltern South Bucks has handled 8,004 applications of this type. This one was decided in 121 days, 9 weeks longer than Chiltern South Bucks's typical decision time. There have been 14 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 5HA
- Application type
- Full Application
- Scale / size
- Medium
- Parish
- Amersham
Planning application dates
- Date validated
- 13 May 2020
- Consultation expiry
- 3 July 2020
- Consultation start
- 21 May 2020
- Consultation end
- 12 June 2020
- Neighbour consultation start
- 19 May 2020
- Neighbour consultation end
- 10 June 2020
- Last date for comments
- 3 July 2020
- Target decision date
- 4 September 2020
Applicant and agent
- Agent
- Blackwood Architects Ltd
- Architect profile
- BLACKWOOD ARCHITECTS LIMITED
- Agent address
- 1-2 Castle Close Castle Street Aylesbury HP20 2RG
Planning decision
- Statutory period
- 114 days
Publicity
- Site notice start
- 12 June 2020
- Site notice end
- 3 July 2020
Additional information
- Documents
- 21
Site constraints
Designations that overlap or adjoin the site outline.
- Article 4 direction: Whole District excluding the Town of Chesham - Poultry production.
- Tree Preservation Order: TPO/1998/021Protected tree on or next to this site
- Green belt: BuckinghamshireNext to the site
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)
flood storage areas, conservation areas, listed buildings, 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.
Planning history at this site
14 other applications at this property, newest first.
- 202324 Nov
Single storey detached Pastoral Hub facility for education use.
ApprovedFull ApplicationPL/23/3732/FA - 20121 Aug
Laying of Geogrid over grass and footpath to allow area to be used for car parking
ApprovedFull ApplicationCH/2012/1161/FA - 201217 Apr
Erection of office building, laying of hardstanding, erection of boundary fencing and siting of shipping…
RefusedFull ApplicationCH/2012/0404/FA - 20126 Feb
Insertion of glazing to enclose existing entrance porch of sixth form block
ApprovedFull ApplicationCH/2012/0141/FA - 20113 Nov
Application for a non-material amendment to planning permission CH/2011/0321/FA
ApprovedNon-material amendmentCH/2011/1735/NMA - 201120 Oct
Application for a non-material amendment to planning permission CH/2011/0321/FA
ApprovedNon-material amendmentCH/2011/1689/NMA - 201118 Mar
Removal of Condition 4 of planning permission CH/2010/0505/FA
ApprovedVariation of conditions (s73)CH/2011/0429/VRC - 201118 Mar
Removal of Condition 5 of planning permission CH/1999/0237/FA
ApprovedVariation of conditions (s73)CH/2011/0428/VRC - 20112 Mar
Part two storey, part single storey extension to south west elevation and second floor/roof extension to the…
ApprovedFull ApplicationCH/2011/0321/FA - 201119 Jan
External staircase serving first floor level of studio building
ApprovedFull ApplicationCH/2011/0024/FA - 201020 Dec
Part two storey, part single storey extension to south west elevation and second floor/roof extension to the…
RefusedFull ApplicationCH/2010/1889/FA - 201016 Apr
Two storey extension to sports hall (amendment to planning permission CH/2009/1342/FA
ApprovedFull ApplicationCH/2010/0505/FA - 201023 Feb
Application for a non-material amendment to planning permission CH/2009/1342/FA
RefusedNon-material amendmentCH/2010/0280/NMA - 20095 Oct
Two storey extension to sports hall with ramped access
ApprovedFull ApplicationCH/2009/1342/FA
Source: Chiltern South Bucks
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Around this site
Nearby applications
- Dr Challoners Grammar School Chesham Road Amersham Buckinghamshire HP6 5HACH/2011/0428/VRC · ConditionsApproved0.0 mi
- Dr Challoners Grammar School Chesham Road Amersham Buckinghamshire HP6 5HACH/2009/1342/FA · FullApproved0.0 mi
- Dr Challoners Grammar School Chesham Road Amersham Buckinghamshire HP6 5HAPL/23/3732/FA · FullApproved0.0 mi
- 7 Wayside Court Chesham Road Amersham HP6 5ETCH/2002/1385/FA · FullApproved0.1 mi
- 5 Longfield Drive Amersham Buckinghamshire HP6 5HDPL/19/3385/FA · FullApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Lynford homesVerifiedBuckinghamshireNew Builds6.1 mi
- Electrics EtcElectrician0.2 mi
- Karl Harrison LandscapesDrive & Patio ContractorsLandscapers0.3 mi
- Bull And Banks LtdAmershamCarpentryNew Build0.3 mi
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