30 Rosemary Drive London Colney Hertfordshire Al2 1Ud

1. 20 Mar 2026

   Received by St Albans

2. 23 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 30 Jun 2026

   Decision issued: DC3 Conditional Permission

4. 7 Sep 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 31 Rosemary Drive London Colney Hertfordshire Al2 1Ud

  5/2026/0511 Submitted 16 Mar 2026 0m 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 135m 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 135m 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 178m 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

• 22 Farm Crescent London Colney Al2 1Uq

  TP/2017/0464 Submitted 9 Sep 2017 244m away

  Reduce crowns of 2 Cherry trees by 1m & thin by 10%. Cut back Laurel hedge to align with pavement. Reason - To allow light to garden.

  Granted Trees 3 docs

• 4 Strawberry Crescent London Colney Hertfordshire Al2 1Us

  5/2021/0312 Submitted 3 Feb 2021 279m away

  Rear outbuilding (retrospective)

  Refused Householder 14 docs
  Small domestic

• 5/2026/1173 Decided

  6 Longacres St Albans Hertfordshire Al4 0Dr

  Demolition of existing outbuilding and construction of single storey rear extension

  18 Jun 2026 Householder
• 5/2026/0299 Decided

  12 Rowlatt Drive St Albans Hertfordshire Al3 4Nb

  Demolition of existing side and rear extension and construction of a canopy porch, part single, part two storey front, two storey side and single storey rear extension

  17 Feb 2026 Householder
• 5/2026/0318 Refused

  7 Ardens Way St Albans Hertfordshire Al4 9Uw

  Demolition of existing side canopy, detached garage, rear patio and garden shed and the construction of two storey front, side and rear extensions, together with part single storey rear extension and a front porch canopy and extension to driveway

  19 Feb 2026 Householder
• 5/2026/1139 Decided

  50 Fontmell Close St Albans Hertfordshire Al3 5Hu

  Single storey rear extension and side windows with top openers over 1.7m high

  10 Jun 2026 Householder
• 5/2026/0525 Decided

  11 Hillside Road Harpenden Hertfordshire Al5 4Bs

  Garage conversion, with part roof extension and new front porch extension

  17 Mar 2026 Householder