Planning application
21 Holly Drive Potters Bar Hertfordshire EN6 2QL
Works: Extension
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
Construction of part single, part two storey rear extension with associated roof works. Certificate of Lawful Development (Proposed).
As published by the council, reference 26/0718/CLP
Application record
- Reference
- 26/0718/CLP
- Category
- Lawful development
- Status
- Decided
- Received
- 26 May 2026
- Validated
- 26 May 2026
- Decided
- 14 Jul 2026
- Ward
- Bentley Heath & The Royds
- Parish
- No Parish
- Postcode
- EN6 2QL
Site history
Applications at this address on the Hertsmere register
This site has had 4 applications since 2026: 1 approved, 2 refused.
-
26/0508/PD42 Refused
21 Holly Drive Potters Bar Hertfordshire EN6 2QL
Single storey rear extension. Depth: 5.0m, Height: 3.0m, Eaves: 3.0m.
-
26/0453/PD42 Refused
21 Holly Drive Potters Bar Hertfordshire EN6 2QL
Single storey rear extension. Depth: 6.00m, Height: 3.00m, Eaves: 3.00m.
-
26/0454/PD42 Granted
21 Holly Drive Potters Bar Hertfordshire EN6 2QL
Single storey rear extension. Depth: 6.00m. Height: 3.00m, Eaves: 3.00m.
Timeline
Dates from the published record
-
26 May 2026
Received by Hertsmere
-
14 Jul 2026
Decision issued
-
24 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Dimensions- Planning&Architecture Agent, an architecture practice
279 applications on PlanIndex · across 23 councils · 65% granted
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
5 documents on file for this application
- Delegated report
- Decision notice
- Applicationformredacted
- Proposed plans, elevations & sections
- Location plan, existing plans, elevations & sections
Trade members open them from here.
Open the documentsAfter the decision
Hertsmere has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. 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 500 metres
-
22 Holly Drive Potters Bar Hertfordshire EN6 2QL
78% historically approved · decision due ~14 Sep
Conversion of house to 6x bed HMO (Class C4). Certificate of lawful development (Existing).
Awaiting decision Lawful development 8 docs -
7 Holly Drive Potters Bar Hertfordshire EN6 2QL
Erection of front porch. (Retrospective application)
Refused Householder Extension 9 docsSmall domestic -
7 Holly Drive Potters Bar Hertfordshire EN6 2QL
Outbuilding in rear garden. (Retrospective application)
Granted Householder 8 docsSmall domestic -
28 Mutton Lane Potters Bar Hertfordshire EN6 2PA
78% historically approved · decision due ~28 Sep
Conversion of house to 5x bed HMO (Class C4). Certificate of lawful development (Existing).
Awaiting decision Lawful development 7 docs -
21 Holly Drive Potters Bar Hertfordshire EN6 2QL
Single storey rear extension. Depth: 5.0m, Height: 3.0m, Eaves: 3.0m.
Refused Prior approval Extension 5 docsSmall domestic -
21 Holly Drive Potters Bar Hertfordshire EN6 2QL
Single storey rear extension. Depth: 6.00m, Height: 3.00m, Eaves: 3.00m.
Refused Prior approval Extension 6 docsSmall domestic
Other lawful development applications
In Hertsmere
-
26/0981/CLE Decided
4 Honeywood Close Potters Bar Hertfordshire EN6 5QE
Existing use as an HMO (Class C4). Certificate of Lawful Development (Existing).
-
26/1014/CLP Decided
24 Mount Grace Road Potters Bar Hertfordshire EN6 1RD
Construction of a single-storey outbuilding within the rear garden. Certificate of Lawful Development (Proposed).
-
26/1015/CLP Decided
24 Mount Grace Road Potters Bar Hertfordshire EN6 1RD
Construction of a single-storey BBQ within the garden. Certificate of Lawful Development (Proposed).
-
26/1021/CLP Decided
57 Aberdale Gardens Potters Bar Hertfordshire EN6 2JN
Conversion of loft to habitable space to include hip to gable roof alterations, rear dormer and 3x front rooflights. Certificate of Lawful Development (Proposed).
-
26/0996/CLE Decided
8 Melrose Avenue Potters Bar Hertfordshire EN6 1SZ
Existing use as a HMO (Class C4). Certificate of Lawful Development (Existing).