Planning application
129 Cowley Hill Borehamwood Hertfordshire WD6 5NA
Works: Extension Loft or dormer Demolition Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Demolition of existing outbuildings to facilitate construction of two storey side extension with associated roof works and 2x front rooflights, single storey rear extension with associated roof works and conversion of garage to habitable space to include replacement of garage door with window.
As published by the council, reference 26/0990/HSE
Application record
- Reference
- 26/0990/HSE
- Category
- Householder
- Status
- Awaiting decision
- Received
- 20 Jul 2026
- Validated
- 11 Aug 2026
- Ward
- Borehamwood Cowley Hill
- Parish
- Elstree & Borehamwood Town Council
- Postcode
- WD6 5NA
Timeline
Dates from the published record
-
20 Jul 2026
Received by Hertsmere
-
11 Aug 2026
Validated
Checked as complete and ready for consideration.
-
12 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 6 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Hertsmere took a median of 65 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
4 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.
Trade members open them from here.
Open the documentsWhat happens while it is decided
The process from here
This application is with Hertsmere for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
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
-
87 Cowley Hill Borehamwood Hertfordshire WD6 5NA
T1 OAK. Crown reduce to a height of 13-13.5m and spread of 12m.
Refused Trees 6 docs -
107 Cowley Hill Borehamwood Hertfordshire WD6 5NA
Conversion of garage to form habitable space to include removal of garage door and insertion of window to front elevation
Granted Householder Windows or glazing 9 docsDomestic -
99 Cowley Hill Borehamwood Hertfordshire WD6 5NA
Conversion of loft to habitable room to include increase to ridge height and rear dormer. (Amended plans received 31/03/2023)
Granted Householder Loft or dormer Roofing 16 docsDomestic -
48 Stanborough Avenue Borehamwood Hertfordshire WD6 5LP
90% historically approved · decision due ~5 Oct
Single storey rear extension.
Awaiting decision Householder Extension 10 docsSmall domestic -
62 Stanborough Avenue Borehamwood Hertfordshire WD6 5LP
Part single, part two storey side extension and single-storey rear extension following demolition of conservatory, alterations to fenestration.
Granted Householder Extension Demolition +1 13 docsSmall domestic -
Land At Cowley Hill Stables Cowley Hill Borehamwood Hertfordshire WD6 5NA
Application for approval of details reserved by conditions 4 (SUDS), 7 (remediation scheme), 9 (landscape management plan), 17 (Electric Vehicle Charging Points) and 22 (artificial lighting impact assessment) of planning permission reference 20/2141/FUL.
Decided Conditions 132 docs
Other householder applications
In Hertsmere
-
26/1262/HSE Awaiting decision
Roundbush House Round Bush Lane Aldenham Watford Hertfordshire WD25 8BG
Construction of attached double garage with pitched roof.
-
26/1255/HSE Awaiting decision
33 Coldharbour Lane Bushey Hertfordshire WD23 4NU
Demolition of rear conservatory and existing two storey side extension; construction of part single, part two storey side and rear extension and two storey front extension with relocation of front entrance; conversion of loft to habitable space with associated hip to gable roof extensions, rear dormer with 2x Juliette balconies and insertion of 2x front and 4x side rooflights; 3x rear Juliette balconies at first floor level, alterations to side bay extension, alterations to fenestration and removal of 2x chimney stacks.
-
26/1253/HSE Awaiting decision
159 Arundel Drive Borehamwood Hertfordshire WD6 2LZ
Construction of single storey rear extension with pitched roof and 3x rooflights, and alterations to fenestration.
-
26/1250/HSE Awaiting decision
3 The Walk Potters Bar Hertfordshire EN6 1QL
Single storey side extension following demolition of existing detached garage and shed.
-
26/1248/HSE Awaiting decision
24 Farm Way Bushey Hertfordshire WD23 3SS
Single storey rear extension; single storey front extension to include porch, conversion of garage to habitable space and replacement of garage door with window; first floor side extension.