Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

This site has had 4 applications since 2022: 3 approved, 0 refused.

• 26/1302/DOC Awaiting decision

  Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

  Application for approval of details reserved by condition 3 (fenestration) of planning permission reference 23/0921/LBC.

  Submitted 8 Sep 2026 Conditions
• 23/0183/TRC Granted

  Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

  2no. ASH. Reduce by approximately 4m in height and 3m in width.

  Decided 14 Mar 2023 Trees
• 22/1630/HSE Granted

  Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

  Single storey side extension with green roof, alterations to fenestration at all elevations. Installation of stairs at side elevation and railings to rear. Internal alteration to include removal of walls to change internal layout and alterations to doors. Installation of solar panels to garage. Tennis Court to be resurfaced, with electric supply. External works to include additional areas of planting.

  Decided 7 Feb 2023 Householder

1. 22 Sep 2022

   Received by Hertsmere

2. 7 Feb 2023

   Decision issued: Grants Consent

3. 9 Aug 2026

   Added to PlanIndex

• Application: 22/1630/HSE (Decided)

Hertsmere granted permission on 7 February 2023, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

• Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

  22/1630/HSE Submitted 22 Sep 2022 50 yards away

  Single storey side extension with green roof, alterations to fenestration at all elevations. Installation of stairs at side elevation and railings to rear. Internal alteration to include removal of walls to change internal layout and alterations to doors. Installation of solar panels to garage. Tennis Court to be resurfaced, with electric supply. External works to include additional areas of planting.

  Granted Householder Extension Roofing +1 38 docs
  Small domestic

• 69 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

  26/0183/HSE Submitted 12 Feb 2026 100 yards away

  Construction of single storey rear infill extension and increase of ridge height to existing garage.

  Granted Householder Extension Roofing 11 docs
  Small domestic

• Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

  26/1302/DOC Submitted 8 Sep 2026 150 yards away

  100% historically approved · decision due ~3 Nov

  Application for approval of details reserved by condition 3 (fenestration) of planning permission reference 23/0921/LBC.

  Awaiting decision Conditions Windows or glazing

• Cedar House 73 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

  23/0183/TRC Submitted 3 Feb 2023 150 yards away

  2no. ASH. Reduce by approximately 4m in height and 3m in width.

  Granted Trees 5 docs

• 71 Blanche Lane South Mimms Potters Bar Hertfordshire EN6 3PA

  21/1424/TRC Submitted 9 Jul 2021 150 yards away

  T1 WEEPING WILLOW. To reduce by 2.5m in height and width. T2 WEEPING WILLOW. To reduce regrowth by around 2.5m in height and width. To prune back snapped out limb. T3 WEEPING WILLOW. To reduce by 3m height and 3m width, cut back limbs to clear pond area

  Granted Trees 10 docs

• 22 Blanche Lane South Mimms Potters Bar EN6 3PA

  TP/09/1942 Submitted 4 Nov 2009 150 yards away

  Siting of temporary mobile home in rear garden whilst existing main dwelling is being constructed/renovated (Revised Application).

  Refused Full applications 5 docs
  Domestic

• 26/0898/LBC Decided

  The White Hart St Albans Road South Mimms Potters Bar Hertfordshire EN6 3PJ

  Replacement of existing windows with bespoke timber windows and replacement of the northern perimeter wall (Application for Listed Building Consent)

  Received 29 Jun, published by the council 24 Jul 2026 Heritage and listed buildings
• 26/1448/LBC Awaiting decision

  The Cat And Fiddle 14 Cobden Hill Radlett Hertfordshire WD7 7JR

  New underpinning foundations and roof to existing listed building. (Application for Listed Building Consent.)

  Received 8 Oct, published by the council 15 Oct 2026 Heritage and listed buildings
• 26/1400/LBC Awaiting decision

  Fold Farm Galley Lane Barnet Hertfordshire EN5 4RA

  Repair of 5x existing windows and replacement of 11x existing windows.

  Received 29 Sep, published by the council 14 Oct 2026 Heritage and listed buildings
• 26/0793/LBC Decided

  Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

  Repair and conservation of the timber roof structure and pitched roof coverings, re-covering of lead surfaces to the flat valley roof; repair and restoration of the clock tower (cupola), chimneys and entrance canopy; repair, repointing and conservation of the brick envelope; repairs to lead flashing, gutters, pipes and rainwater goods; repair of external windows; installation of roof insulation and photo-voltaic panels; repair of windows and doors; refurbishment and conservation of third floor including long gallery, addition of secondary window glazing; provision of kitchen and WCs; installation of lighting, fixtures and fittings; installation of glazed partitions; repainting, repair and conservation of timber panelling and associated works. (Associated application for full planning permission 26/0801/FUL.)

  Received 9 Jun, published by the council 24 Jul 2026 Heritage and listed buildings
• 26/1399/LBC Awaiting decision

  Tyttenhanger House Coursers Road Colney Heath St Albans Hertfordshire AL4 0PG

  Repairs and associated alterations to an outbuilding attached to Tyttenhanger House.

  Received 28 Sep, published by the council 2 Oct 2026 Heritage and listed buildings