40 Carrington Avenue Borehamwood Hertfordshire WD6 2HA

This site has had 2 applications since 2026.

• 26/0735/HSE Decided

  40 Carrington Avenue Borehamwood Hertfordshire WD6 2HA

  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).

  Decided 6 Aug 2026 Householder

1. 19 May 2026

   Received by Hertsmere

2. 23 Jul 2026

   Decision issued

3. 24 Jul 2026

   Added to PlanIndex

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.

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.

• 52 Carrington Avenue Borehamwood Hertfordshire WD6 2HA

  26/1315/CLP Submitted 10 Sep 2026 50 yards away

  Replacement rear dormer and alterations to front roof lights. Certificate of lawful development (Proposed).

  Granted Lawful development Loft or dormer 6 docs

• 40 Carrington Avenue Borehamwood Hertfordshire WD6 2HA

  26/0735/HSE Submitted 28 May 2026 50 yards away

  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).

  Decided Householder Extension Loft or dormer +1 7 docs
  Small domestic

• 52 Carrington Avenue Borehamwood Hertfordshire WD6 2HA

  21/1142/TPO Submitted 27 May 2021 50 yards away

  T1 OAK. Fell.

  Granted Trees 5 docs

• 27 Lullington Garth Borehamwood Hertfordshire WD6 2HD

  21/0329/HSE Submitted 15 Feb 2021 50 yards away

  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 docs
  Small domestic

• 23 Lullington Garth Borehamwood Hertfordshire WD6 2HD

  21/0712/HSE Submitted 31 Mar 2021 100 yards away

  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 docs
  Small domestic

• 30 Lullington Garth Borehamwood WD6 2HE

  TP/08/0205 Submitted 11 Feb 2008 100 yards away

  *Electronic documents only, no paper fileErection of two storey side extension and first floor rear extension.

  Granted Full applications Extension 4 docs

• 26/1315/CLP Granted

  52 Carrington Avenue Borehamwood Hertfordshire WD6 2HA

  Replacement rear dormer and alterations to front roof lights. Certificate of lawful development (Proposed).

  Received 10 Sep, published by the council 19 Sep 2026 Lawful development
• 26/1220/CLP Decided

  The Farm House The Green Letchmore Heath Watford Hertfordshire WD25 8ES

  Removal of approximately 1.4m of private garden hedge and installation of an inward-opening pedestrian gate and posts, with a maximum overall height of 1.0 metre above existing ground level, wholly within the property boundary. Certificate of Lawful Development (Proposed).

  Received 24 Aug, published by the council 28 Aug 2026 Lawful development
• 26/1300/CLP Granted

  111 Church Road Potters Bar Hertfordshire EN6 1EY

  Conversion of loft to habitable space to include rear dormer, 3x front rooflights and removal of chimney stack. Certificate of Lawful Development (Proposed).

  Received 7 Sep, published by the council 14 Sep 2026 Lawful development
• 26/1573/CLP Awaiting decision

  49 Warenford Way Borehamwood Hertfordshire WD6 5ER

  Construction of single storey outbuilding Certificate of Lawful Development (Proposed).

  Received 29 Oct, published by the council 6 Nov 2026 Lawful development
• 26/1276/CLE Granted

  81 Barton Way Borehamwood Hertfordshire WD6 1PQ

  Retention of existing use of an outbuilding as a self-contained dwellinghouse. Certificate of Lawful Development (Existing).

  Received 3 Sep, published by the council 9 Sep 2026 Lawful development