Planning application
12 Chiltern Avenue Stone Buckinghamshire HP17 8QY
Works: Extension Loft or dormer Small domestic
Read from the description, not a valuation. How we read the register
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Certificate of Lawfulness for proposed part two storey with hipped roof, part single storey flat roof extension to the rear and dormer to roof
As published by the council, reference PL/25/4348/SA
Application record
- Reference
- PL/25/4348/SA
- Type
- Certificate of Lawful Use - Proposed
- Status
- Decided
- Decision
- Refused As published: Cert of Law PROPOSED-refused
- Received
- 6 Oct 2025
- Validated
- 6 Oct 2025
- Decided
- 24 Dec 2025
- Ward
- Haddenham and Stone
- Parish
- Stone Bishopstone and Hartwell
- Decision by
- Delegated Decision
- Postcode
- HP17 8QY
Site history
Applications at this address on the Buckinghamshire register
This site has had 3 applications since 2025: 2 approved, 1 refused.
-
PL/26/00831/FA Granted
12 Chiltern Avenue Stone Buckinghamshire HP17 8QY
Demolition of part of original single storey extension. Proposed part two storey, part single storey rear extension and rear dormer to roof
-
PL/25/5291/FA Granted
12 Chiltern Avenue Stone Buckinghamshire HP17 8QY
Replacement of single storey front porch with two storey front porch.
Timeline
Dates from the published record
-
6 Oct 2025
Received by Buckinghamshire
-
24 Dec 2025
Decision issued: Cert of Law PROPOSED-refused
-
4 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
WGArchitects Ltd Agent, registered in Llanelli
Active · incorporated 2023 · Llanelli
8 applications on PlanIndex · across 4 councils
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
7 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this refusal means
Buckinghamshire refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.
About lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
12 Chiltern Avenue Stone Buckinghamshire HP17 8QY
Demolition of part of original single storey extension. Proposed part two storey, part single storey rear extension and rear dormer to roof
Granted Full applications Extension Loft or dormer +1 7 docsSmall domestic -
12 Chiltern Avenue Stone Buckinghamshire HP17 8QY
Replacement of single storey front porch with two storey front porch.
Granted Full applications Extension 7 docsSmall domestic -
The Goat House 42 Bishopstone Road Stone Buckinghamshire HP17 8QX
85% historically approved · decision due ~1 Oct
Certificate of lawfulness for existing use to confirm lawful implementation of planning permission 23/02549/APP through the demolition of outbuildings and garage
Decided Demolition -
Maple View Bishopstone Road Stone Buckinghamshire HP17 8QX
85% historically approved · decision due ~20 Nov
T1 Sycamore - Reduce the overextended lateral limb on the southern aspect by up to 2.5 metres to reduce end loading and rebalance the upper crown, with finishing cuts not exceeding 125mm in diameter. Additionally, reduce 3 no. overextended limbs within the upper crown on the northern aspect by up to 1.5 metres to reduce end loading and improve overall crown balance, with finishing cuts not exceeding 90mm in diameter. Crown lift over the lawn area to achieve approximately 2.5 metres clearance from ground level through the selective reduction of low, drooping secondary growth, with finishing cuts not exceeding 50mm in diameter. Reason for works - tree is displaying natural signs of crown senescence. The proposed works will selectively rebalance the upper crown, reduce end loading and alleviate loading on associated branch unions.
Awaiting decision Trees -
The Goat House 42 Bishopstone Road and Land To The Rear Stone Buckinghamshire HP17 8QX
85% historically approved · decision due ~17 Dec
Request for an EIA Screening Opinion under Regulation 6 of the Town and Country Planning (Environmental Impact Assessment) Regulations 2017 (as amended) to deliver up to 80 new homes and associated supporting infrastructure including a local area of play
Awaiting decision -
40 Bishopstone Road Stone Buckinghamshire HP17 8QX
85% historically approved · decision due ~12 Aug
Extension to existing garage to provide a double garage
Decided Extension
Other lawful development applications
In Buckinghamshire
-
PL/26/01937/SA Granted
63 Ingram Avenue Aylesbury Buckinghamshire HP21 9DJ
Certificate of lawfulness for proposed dropped kerb.
-
PL/26/02452/SA Granted
217A Desborough Avenue High Wycombe Buckinghamshire HP11 2TW
Certificate of lawfulness for the proposed erection of an outbuilding.
-
PL/26/00836/SA Granted
33 South View Downley Buckinghamshire HP13 5UL
Certificate of lawfulness for the proposal to create new access at the front of the property.
-
PL/26/07553/SA Awaiting decision
4 Marlborough Road Aylesbury Buckinghamshire HP21 8AU
Certificate of Lawfulness for proposed new vehicular crossover (dropped kerb) to 4.6m total width including transition kerbs, with associated enlargement of the opening in the front boundary wall, and formation of a permeable hardstanding within the front garden to provide off-street parking for the existing dwellinghouse. Works are engineering/building operations as defined by s55 TCPA 1990. No change of use is proposed; the dwelling remains in Use Class C3. Existing drop kerb reinstated.
-
PL/26/07397/EU Awaiting decision
22 Priory Road High Wycombe Buckinghamshire HP13 6SL
Certificate of lawfulness for existing use of property as a block of eight self-contained flats, each falling within use class C3.