Planning application
11 Glenhaven Avenue Borehamwood Hertfordshire WD6 1AY
Works: Extension 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
Single-storey side and rear extension.
As published by the council, reference 26/1150/HSE
Application record
- Reference
- 26/1150/HSE
- Category
- Householder
- Status
- Awaiting decision
- Received
- 11 Aug 2026
- Validated
- 11 Aug 2026
- Ward
- Borehamwood Brookmeadow
- Parish
- Elstree & Borehamwood Town Council
- Postcode
- WD6 1AY
Comment by 9 September 2026
The council is taking comments on this application until then. Comments go to Hertsmere through their own planning portal.
Site history
Applications at this address on the Hertsmere register
This site has had 3 applications since 2026.
-
26/1148/PD42 Awaiting decision
11 Glenhaven Avenue Borehamwood Hertfordshire WD6 1AY
Single storey rear extension. Depth: 4.42m, Height: 3.00m, Eaves: 3.00m.
-
26/1151/CLP Awaiting decision
11 Glenhaven Avenue Borehamwood Hertfordshire WD6 1AY
Single storey rear extension, conversion of loft to habitable space including rear dormer and 2x front roof lights. Certificate of lawful development (Proposed).
Timeline
Dates from the published record
-
11 Aug 2026
Received by Hertsmere
-
19 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.
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice
269 applications on PlanIndex · across 22 councils · 64% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
7 documents on file for this application
- Proposal
- Applicationformredacted
- Attachmentsummary
- Location plan, existing plans, elevations & sections
- Existing & proposed site plan, proposed plans, elevations & sections
- Form_1_cil_additional_information
- Site images
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Hertsmere for determination, against a statutory target of eight weeks. Over the last year Hertsmere decided householder applications in a median of 65 days. More in our guide to how long planning decisions take.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
11 Glenhaven Avenue Borehamwood Hertfordshire WD6 1AY
84% historically approved · decision due ~6 Oct
Single storey rear extension. Depth: 4.42m, Height: 3.00m, Eaves: 3.00m.
Awaiting decision Extension 3 docsSmall domestic -
11 Glenhaven Avenue Borehamwood Hertfordshire WD6 1AY
78% historically approved · decision due ~6 Oct
Single storey rear extension, conversion of loft to habitable space including rear dormer and 2x front roof lights. Certificate of lawful development (Proposed).
Awaiting decision Lawful development Extension Loft or dormer 4 docsSmall domestic -
Land To The Rear Of The Wellington Public House Theobald Street Borehamwood Hertfordshire WD6 4SE
Application for approval of details reserved by condition 10 (remedial works) of planning permission reference 17/1570/OUT.
Decided Conditions 5 docs -
13 Glenhaven Avenue Borehamwood Hertfordshire WD6 1AY
Construction of single storey side infill and rear extensions, and alterations to fenestration. Certificate of Lawful Development (Proposed).
Granted Lawful development Extension Windows or glazing 6 docsSmall domestic -
9 Glenhaven Avenue Borehamwood Hertfordshire WD6 1AY
Construction of single storey rear extension. Certificate of Lawful Development (Proposed).
Granted Lawful development Extension 13 docsSmall domestic -
Land Adjacent To The Wellington PH (now Known As 1-9 Robinson Court) Theobald Street Borehamwood Hertfordshire
Application for approval of details reserved by conditions 5 & 9 (Car park management plan) and 8 (Waste management plan) of planning permission reference 18/1006/FUL
Decided Conditions 6 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.
-
26/1260/HSE Awaiting decision
26 Caishowe Road Borehamwood Hertfordshire WD6 5JA
Demolition of existing outbuilding to facilitate construction of single storey side and rear extension.
-
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.