Planning application
PL/26/01347/SA
Lanivet Grove Lane Chalfont St Peter Buckinghamshire SL9 9LN
Proposal
Certificate of lawfulness for the proposed erection of a two storey rear extension.
As published by the council, reference PL/26/01347/SA
Timeline
Dates from the published record
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18 Feb 2026
Received by Buckinghamshire
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17 Apr 2026
Decision issued: Cert of Law PROPOSED-granted
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4 Aug 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
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PL/26/00919/CONDA Decided
Timbers Welders Lane Chalfont St Peter Buckinghamshire SL9 8TU
Application for approval of details subject to conditions 4 (trees) and 7 (ecological enhancements) of planning approval PL/25/2564/VRC
-
PL/25/2250/SA Refused
The Chalfonts Community College Narcot Lane Chalfont St Peter Buckinghamshire SL9 8TP
Proposed certificate of lawfulness for alterations to boundary fence and an altered access point
-
PL/26/01381/CONDA Decided
Cumnock Nicol Road Chalfont St Peter Buckinghamshire SL9 9LY
Application for approval of details subject to conditions 2 (detailed plans including proposed slab), 3 (materials), 5 (habitat management and monitoring plan) and 6 (boundaries) of planning approval PL/25/2140/FA. Condition 2 - (MDL-1425-PL-1000 - Plots 1-4 Street Scene & Section A-A). Condition 3 - (MDL-1425 - Nicol Road, Chalfont St Peter - Materials Schedule). Condition 5 - (Biodiversity gain plan forms, HMMP 1.0 and Soft Landscaping Plan). Condition 6 - (MDL-1425-PL-1001 - Plots 1-4 Site Plan).
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PL/25/6029/FA Awaiting decision
Land at Old Jobs Narcot Lane Chalfont St Peter Buckinghamshire SL9 8TR
Construction of 7 dwellings, with associated access, landscaping and open space
-
PL/25/6043/FA Granted
4 Fairhaven Chalfont St Peter Buckinghamshire SL9 9JE
Single storey rear extension
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PL/25/6033/VRC Refused
Harvest Cottage 89 Orchard Grove Chalfont St Peter Buckinghamshire SL9 9ET
Variation of condition 7 (Approved Plans) attached to planning permission PL/21/4305/FA (Demolition of existing rear extension, erection of part two storey/part single storey rear extension, two storey side extension, hip to gable end side roof extension, 2 front and 3 rear rooflights, new front porch, extend existing rear gates, new rear vehicular access to Nicol Road) to allow for the staircase to be moved internally and the construction of a rear dormer as part of the roof extension.
Other lawful development applications
In Buckinghamshire
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PL/26/01164/SA Refused
64 Sandholme Steeple Claydon Buckinghamshire MK18 2QE
Certificate of lawfulness for proposed dropped kerb.
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PL/26/01589/SA Refused
3 Corn Mill Close Wing Buckinghamshire LU7 0PL
Certificate of lawfulness for the proposed single storey rear extension and part garage conversion.
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PL/26/01721/SA Granted
Burton House White Lion Road Little Chalfont Buckinghamshire HP7 9LP
Certificate of lawfulness for the proposed change of use of building from Existing Office Building (Class E) to Veterinary Practice (Class E).
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PL/26/05515/SA Awaiting decision
Dinton Hall Upton Road Dinton Buckinghamshire HP17 8UQ
Certificate of lawfulness application for proposed crossover field access point.
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PL/26/05843/SA Awaiting decision
Land at Springfield Farm, South Heath, Buckinghamshire
Certificate of Proposed Lawful Development for the temporary storage of soil stockpiles at Springfield Farm field at South Heath, Buckinghamshire