Planning application
40 Carrington Avenue Borehamwood Hertfordshire WD6 2HA
Works: Extension Loft or dormer Demolition Small domestic
Read from the description, not a valuation. How we read the register
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
Demolition of garage to form single storey side and part single part two storey rear extensions, erection of porch and internal alterations. Conversion of loft to habitable space to include rear dormer, 3x front rooflights and removal of chimney stack (amended description).
As published by the council, reference 26/0735/HSE
Application record
- Reference
- 26/0735/HSE
- Category
- Householder
- Status
- Decided
- Received
- 28 May 2026
- Validated
- 28 May 2026
- Decided
- 6 Aug 2026
- Ward
- Borehamwood Hillside
- Parish
- Elstree & Borehamwood Town Council
- Postcode
- WD6 2HA
Site history
Applications at this address on the Hertsmere register
This site has had 2 applications since 2026.
-
26/0681/CLP Decided
40 Carrington Avenue Borehamwood Hertfordshire WD6 2HA
Conversion of loft to habitable space to include rear dormer, 3x front rooflights and removal of chimney stack Certificate of Lawful Development (Proposed).
Timeline
Dates from the published record
-
28 May 2026
Received by Hertsmere
-
24 Jul 2026
Added to PlanIndex
-
6 Aug 2026
Decision issued
-
8 Aug 2026
Status changed to Decided
Previously Awaiting decision.
Who's behind it
Company information only, from the register and Companies House
KDB Building Designs Ltd Agent, a design practice registered in Greenford
Active · incorporated 2002 · Greenford
183 applications on PlanIndex · across 8 councils · 85% 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
7 documents on file for this application
- Delegated report
- Decision
- Proposed floor plans and elevations
- Existing floor plans, elevations and site plan
- Applicationformredacted
- Proposed plans and elevations
- Existing plans and elevations
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 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
-
40 Carrington Avenue Borehamwood Hertfordshire WD6 2HA
Conversion of loft to habitable space to include rear dormer, 3x front rooflights and removal of chimney stack Certificate of Lawful Development (Proposed).
Decided Lawful development Loft or dormer 3 docs -
-
27 Lullington Garth Borehamwood Hertfordshire WD6 2HD
Conversion of loft to habitable room with rear dormer and insertion of roof light to side elevation. Demolition of existing garage, erection of part single part two storey side and rear extension, new front porch and alterations to fenestration (revised application). (amended plans received 02/06/2021 - amendments to neighbouring property location and reduced dormer and ground floor rear extension size)
Granted Householder Extension Loft or dormer +2 7 docsSmall domestic -
23 Lullington Garth Borehamwood Hertfordshire WD6 2HD
Conversion of garage to habitable room, construction of single storey front extension, single storey rear infill extension and alterations to fenestration.
Granted Householder Extension Windows or glazing 6 docsSmall domestic -
30 Lullington Garth Borehamwood WD6 2HE
*Electronic documents only, no paper fileErection of two storey side extension and first floor rear extension.
Granted Full applications Extension 4 docs -
46 Carrington Avenue Borehamwood Hertfordshire WD6 2HA
Two storey side extension.
Withdrawn Householder Extension 10 docsDomestic
Other householder applications
In Hertsmere
-
26/0885/HSE Granted
89 Hatfield Road Potters Bar Hertfordshire EN6 1HZ
Demolition of existing detached garage and construction of part single, part two storey front, side and rear extension.
-
26/0985/HSE Decided
3 Bentley Place Bentley Heath Barnet Hertfordshire EN5 4BF
Part single, part two-storey rear extension, 2x new rear dormers, conversion of existing garage into habitable room, and alterations to fenestration.
-
26/1013/HSE Granted
29 Willow Way Potters Bar Hertfordshire EN6 2PR
Construction of a single-storey rear extension to include alterations to fenestration.
-
26/0623/HSE Decided
9 Mulberry Gardens Shenley Radlett Hertfordshire WD7 9LB
Demolition of existing rear conservatory and construction of single storey rear extension.
-
26/0892/HSE Decided
22 Bullhead Road Borehamwood Hertfordshire WD6 1HS
Construction of single-storey rear outbuilding (as amended by plans received on 24.08.2026 and 26.08.2026).