28 Rosemary Drive London Colney Hertfordshire Al2 1Ud

1. 18 Sep 2026

   Received by St Albans

2. 22 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Sep 2026

   Added to PlanIndex

St Albans 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.

• 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

• 31 Rosemary Drive London Colney Hertfordshire Al2 1Ud

  5/2026/0511 Submitted 16 Mar 2026 50 yards away

  Certificate of Lawfulness (proposed) - Replacement of existing timber flush casement windows with heritage-style flush casement uPVC windows replicating the existing design, proportions, glazing pattern and colour. Replacement of existing rear patio doors

  Granted Lawful development Windows or glazing 11 docs

• 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

  Decided Trees 3 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

  Decided Trees 2 docs
  Small domestic

• 31 Farm Crescent London Colney Hertfordshire Al2 1Ug

  TP/2026/0175 Submitted 10 Apr 2026 200 yards away

  T1 Goat Willow - Fell, encroaching over boundary fence line and damaging fence G2 Hawthorn - Hawthorn hedge to be faced back off boundary fence line to prevent damage to fence.

  Granted Trees 3 docs
  Small domestic

• 5/2026/1480 Granted

  48 Sleapshyde Lane Smallford St Albans Hertfordshire Al4 0Sb

  Certificate of Lawfulness (proposed) - Proposed hip to gable and dormer to form loft conversion

  Received 5 Aug, published by the council 21 Aug 2026 Lawful development
• 5/2026/1226 Granted

  Verulamium Museum St Michaels Street St Albans Hertfordshire Al3 4Sw

  Certificate of Lawfulness (proposed) - The installation of solar panels on the roof of the building

  Received 26 Jun, published by the council 24 Jul 2026 Lawful development
• 5/2026/1530 Granted

  28 Batchwood Drive St Albans Hertfordshire Al3 5Sb

  Certificate of Lawfulness (Proposed) - Proposed loft conversion

  Received 12 Aug, published by the council 21 Aug 2026 Lawful development
• 5/2026/1507 Refused

  27 Highfield Road Sandridge Hertfordshire Al4 9Bx

  Certificate of Lawfulness (proposed) - The proposed additional storey over the original footprint

  Received 10 Aug, published by the council 21 Aug 2026 Lawful development
• 5/2026/1688 Decided

  Turners Hall Farm Annables Lane Kinsbourne Green Harpenden Hertfordshire Al5 3Pt

  Certificate of Lawfulness (proposed) - Single storey side extension to existing dwelling house as shown on attached drawings

  Received 15 Sep, published by the council 23 Sep 2026 Lawful development