Planning application
26/0226/HSE
17 Sunnybank Road Potters Bar Hertfordshire EN6 2NW
Proposal
Conversion of existing attached garage to office room; alterations to fenestration to include replacing the existing garage doors with a window; replacement of existing rear dormer windows; single storey side infill extension; enlargement of existing rear dormers.
As published by the council, reference 26/0226/HSE
Timeline
Dates from the published record
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20 Feb 2026
Received by Hertsmere
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16 Mar 2026
Validated
Checked as complete and ready for consideration.
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25 Jun 2026
Decision issued: Grant Permission
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24 Jul 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 householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
-
26/0846/HSE Awaiting decision
188 Mutton Lane Potters Bar Hertfordshire EN6 2AW
Conversion of garage to a habitable room with a window replacing the garage door, demolition of the existing rear extension, and alterations to fenestration.
-
26/0608/CLE Awaiting decision
171 Mutton Lane Potters Bar Hertfordshire EN6 2AN
Retention of existing self-contained residential outbuilding / dwelling Certificate of Lawful Development (Existing).
-
TP/11/0233 Refused
The Bridge (Now Known As Flats 1-8 Bridge Court) 168 Mutton Lane Potters Bar EN6 2AW
Demolition of public house & erection of 5 x 3 bedroom, two storey houses with associated parking (amended plans received 25/03/11& 19/04/2011).
-
TP/11/0244 Decided
The Bridge (Now Known As Flats 1-8 Bridge Court) 168 Mutton Lane Potters Bar EN6 2AW
Demolition of existing public house and erection of two residential blocks consisting of 8 no. two bedroom flats with associated off street parking (Amended plans received 25/03/11 & 19/04/11).
-
21/0868/PD56R Granted
7 The Broadway Mutton Lane Potters Bar Hertfordshire EN6 2HU
Change of use of ground floor rear unit from Class E (retail) to Class C3 (residential) to provide a 1 bed dwelling. (additional information received on 24/05/2021)
-
26/0686/FUL Awaiting decision
9A The Broadway Mutton Lane Potters Bar Hertfordshire EN6 2HU
Loft conversion including rear dormer extension and insertion of 2x rooflights in connection with the existing lawful C4 HMO (up to six occupants).
Other householder applications
In Hertsmere
-
26/0629/HSE Granted
87 Manor Way Borehamwood Hertfordshire WD6 1QR
Demolition of existing outbuilding and construction of single storey side extension with associated roof alterations.
-
26/0498/HSE Granted
16 Melrose Avenue Potters Bar Hertfordshire EN6 1SZ
Construction of single storey side and rear extension and front porch extension.
-
26/0734/HSE Withdrawn
16 Burghley Avenue Borehamwood Hertfordshire WD6 2JF
Single story rear extension.
-
26/0690/HSE Granted
4 Horwood Cottages Back Lane Letchmore Heath Watford Hertfordshire WD25 8EH
Demolition of existing single storey rear extension and construction of single storey rear extension.
-
26/0597/HSE Granted
12 Bridle Close Borehamwood Hertfordshire WD6 5QA
Formation of roof terrace over existing ground floor flat roof, including metal guarding and replacement of existing rear window with door.