27 Mansdale Road Redbourn Hertfordshire Al3 7Dl

1. 16 Mar 2026

   Received by St Albans

2. 17 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 27 May 2026

   Decision issued: Certificate of Lawfulness Approved

4. 31 Aug 2026

   Added to PlanIndex

St Albans granted permission on 27 May 2026, 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.

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.

• 25 Mansdale Road Redbourn Hertfordshire Al3 7Dl

  5/2026/1149 Submitted 12 Jun 2026 50 yards away

  Certificate of Lawfulness (proposed) - creation of rear extension including internal refurbishment and creation of ground floor WC

  Granted Lawful development Extension 11 docs

• 5 Flamsteadbury Lane Redbourn Hertfordshire Al3 7Dh

  5/2026/1031 Submitted 26 May 2026 100 yards away

  Certificate of Lawfulness (proposed) - Construction of single storey rear 3m extension, maximum eaves height 3m and maximum ridge height 4m

  Granted Lawful development Extension Roofing 7 docs
  Small domestic

• 32 Mansdale Road Redbourn Hertfordshire Al3 7Dw

  5/2016/3411 Submitted 16 Nov 2016 100 yards away

  Garage conversion into habitable accommodation, single storey front extension, alterations to openings and installation of rooflights

  Granted Householder Extension Loft or dormer 9 docs
  Small domestic

• Thatch End 30 West Common Redbourn Hertfordshire Al3 7Df

  TP/2026/0316 Submitted 29 Jun 2026 200 yards away

  Fell the dead Silver Birch on the left-hand-side of the front garden. Reasons: Safety.

  Granted Trees 3 docs

• 4 St Marys Close Redbourn Hertfordshire Al3 7Dd

  5/2025/1309 Submitted 8 Jul 2025 200 yards away

  88% historically approved · decision due ~3 Sep

  AMENDED PLANS & DESCRIPTION - Demolition of existing bungalow, garage and carport, and the construction of two dwellings with a detached garage, associated parking, landscaping, and ancillary works

  Awaiting decision Demolition 35 docs
  Several homes

• 3 St Marys Close Redbourn Hertfordshire Al3 7Dd

  5/2024/0221 Submitted 6 Feb 2024 200 yards away

  Discharge of Conditions 3 (details of materials) 5 (existing and proposed slab levels) and 7 (noise assessment) of planning permission 5/2022/2493 dated 07/06/2023 for Demolition of existing dwelling and garage and construction of a single five bedroom dw

  Granted Conditions Demolition 13 docs
  Domestic

• 5/2026/1638 Granted

  1 Castle Rise Wheathampstead Hertfordshire Al4 8Hx

  Certificate of Lawfulness (proposed) - Proposed loft hip to gable with rear dormer, internal alterations and all associated works at 1 Castle Rise, AL4 8HX

  Received 7 Sep, published by the council 13 Sep 2026 Lawful development
• 5/2026/1622 Granted

  9 Necton Road Wheathampstead Hertfordshire Al4 8At

  Certificate of Lawfulness (proposed) - Dormer to rear elevation to existing bedroom. new window to rear

  Received 2 Sep, published by the council 13 Sep 2026 Lawful development
• 5/2026/1561 Granted

  125 New House Park St Albans Hertfordshire Al1 1Uh

  Certificate of Lawfulness (existing) - The retrospective development comprises minor external alterations to the rear elevation of the dwellinghouse at 125 New House Park. The applicant seeks a Certificate of Lawfulness (Existing) under Section 191 of the

  Received 21 Aug, published by the council 31 Aug 2026 Lawful development
• 5/2026/1772 Awaiting decision

  14 Ashley Road St Albans Hertfordshire Al1 5Da

  Certificate of Lawfulness (Proposed) - Loft Conversion, Hip to gable, Rear dormer

  Received 29 Sep, published by the council 11 Oct 2026 Lawful development
• 5/2026/1759 Awaiting decision

  2 Grimston Road St Albans Hertfordshire Al1 5Ep

  Certificate of Lawfulness (Proposed) - Erection of a single-storey detached timber log cabin with a pent (mono-pitch) roof in the rear garden, for purposes incidental to the enjoyment of the dwellinghouse (domestic storage and hobby workshop). Footprint 9

  Received 28 Sep, published by the council 11 Oct 2026 Lawful development