31 Rosemary Drive London Colney Hertfordshire Al2 1Ud

1. 16 Mar 2026

   Received by St Albans

2. 23 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jun 2026

   Decision issued: Certificate of Lawfulness Approved

4. 7 Sep 2026

   Added to PlanIndex

St Albans granted permission on 24 June 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.

• 28 Rosemary Drive London Colney Hertfordshire Al2 1Ud

  5/2026/1715 Submitted 18 Sep 2026 50 yards away

  75% historically approved · decision due ~17 Nov

  Certificate of Lawfulness (propopsed) - Replacement of 13 existing white-painted timber flush-casement windows with white heritage-style flush-casement uPVC double-glazed windows. The replacement windows will occupy the existing window openings and replic

  Awaiting decision Lawful development Windows or glazing 3 docs

• 14 Rosemary Drive London Colney Hertfordshire Al2 1Ud

  5/2017/3137 Submitted 7 Nov 2017 50 yards away

  Loft conversion and alterations to openings

  Granted Householder Loft or dormer 12 docs
  Domestic

• 30 Rosemary Drive London Colney Hertfordshire Al2 1Ud

  5/2026/0555 Submitted 20 Mar 2026 50 yards away

  Single storey rear extension with roof windows, alterations to openings, part garage conversion with new garage door.

  Granted Householder Extension Windows or glazing 15 docs
  Small domestic

• 4 Rosemary Drive London Colney Hertfordshire Al2 1Ud

  5/2017/3505 Submitted 11 Dec 2017 50 yards away

  Single storey rear extension and alterations to openings

  Refused Householder Extension 10 docs
  Small domestic

• 12 Tamarix Crescent London Colney Hertfordshire Al2 1Ut

  TP/2026/0425 Submitted 28 Aug 2026 150 yards away

  G1 Treeline behind the rear garden of 12 Tamarix Crescent, to carry out a prune of the roots to the fence line that are currently lifting the paving slabs in the garden of number 12. Then to install a barrier to prevent the growth from causing the same is

  Granted Trees 4 docs
  Small domestic

• 12 Tamarix Crescent London Colney Hertfordshire Al2 1Ut

  TP/2026/0391 Submitted 11 Aug 2026 150 yards away

  T154 Ash - Cut back off Boundary Fence line to give a 1m clearance

  Granted Trees 2 docs
  Small 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