9A Rosebery Avenue Harpenden Hertfordshire Al5 2Qt

This site has had 2 applications since 2025.

• 5/2026/0407 Awaiting decision

  9A Rosebery Avenue Harpenden Hertfordshire Al5 2Qt

  Certificate of Lawfulness (proposed) - Erection of a single-storey detached outbuilding within the rear garden of the dwellinghouse

  Submitted 3 Mar 2026 Lawful development

1. 8 Sep 2025

   Received by St Albans

2. 8 Oct 2025

   Validated

   Checked as complete and ready for consideration.

3. 27 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 3 December 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   St Albans took a median of 76 days over the applications it decided in the last year.

This application is with St Albans for determination, against a statutory target of eight weeks. Over the last year St Albans decided condition discharge and variation applications in a median of 70 days. More in our guide to how long planning decisions take.

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

• 9 Rosebery Avenue Harpenden Hertfordshire Al5 2Qt

  5/2021/1575 Submitted 24 May 2021 50 yards away

  Erection of part two storey side extension and part single storey rear extension, with installation of rear dormer (resubmission following withdrawal of 5/2021/0488)

  Granted Householder Extension Loft or dormer 16 docs
  Small domestic

• 11 Rosebery Avenue Harpenden Hertfordshire Al5 2Qt

  5/2021/1515 Submitted 20 May 2021 50 yards away

  Single storey side and rear extensions and internal alterations

  Granted Householder Extension 8 docs
  Small domestic

• 11 Rosebery Avenue Harpenden Hertfordshire Al5 2Qt

  5/2025/2322 Submitted 22 Dec 2025 50 yards away

  Rear ground and basement floor extensions with associated hard and soft landscaping

  Granted Householder Extension 28 docs
  Domestic

• 9A Rosebery Avenue Harpenden Hertfordshire Al5 2Qt

  5/2026/0407 Submitted 3 Mar 2026 50 yards away

  75% historically approved · decision due ~29 Apr

  Certificate of Lawfulness (proposed) - Erection of a single-storey detached outbuilding within the rear garden of the dwellinghouse

  Awaiting decision Lawful development 5 docs
  Small domestic

• 9B Rosebery Avenue Harpenden Hertfordshire Al5 2Qt

  5/2026/0409 Submitted 3 Mar 2026 50 yards away

  75% historically approved · decision due ~29 Apr

  Certificate of Lawfulness (proposed) - Erection of a single-storey detached outbuilding within the rear garden of the dwellinghouse

  Awaiting decision Lawful development 5 docs
  Small domestic

• 15 Rosebery Avenue Harpenden Hertfordshire Al5 2Qt

  5/2017/3063 Submitted 26 Oct 2017 50 yards away

  Demolition of garage and outbuilding and erection of two storey side extension with accommodation in roofspace

  Granted Householder Extension Demolition 21 docs
  Small domestic

• 5/2025/1067 Granted

  Falconers Cottage 1 Falconers Field Harpenden Hertfordshire Al5 3Eu

  Discharge of Conditions 4 (external materials) and 6 (development progress report) of planning permission 5/2021/3048 dated 09/04/2024 for Demolition of existing dwelling and construction of two dwellings with off road car parking spaces and new cross ove

  Received 30 May, published by the council 13 Sep 2026 Conditions
• 5/2026/1415 Granted

  St Lukes School Crouch Hall Lane Redbourn Hertfordshire Al3 7Et

  Discharge of Condition 10 (groundwater contamination) of planning permission 5/2024/1710 dated 03/07/2025 for Demolition of existing gym building and store and shed structures and construction of a training caf� building for young people with Special Educ

  Received 24 Jul, published by the council 9 Aug 2026 Conditions
• 5/2026/1527 Granted

  11B Douglas Road Harpenden Hertfordshire Al5 2En

  Discharge of Condition 5 (tree protection plan and arboricultural method statement) of planning permission 5/2025/0568 dated 06/02/2026 for Two storey front extension, single storey front and rear extensions with roof lights, solar panels to rear roof slo

  Received 12 Aug, published by the council 25 Aug 2026 Conditions
• 5/2026/1113 Granted

  St Germains Barn Adjacent To Grebe House St Michaels Street St Albans Hertfordshire Al3 4Sn

  Discharge of Conditions 3 (repair methodology), 4 (larger scale detailed plans and drawings) and 7(Historic building recording Level 3 report) of planning permission 5/2024/1483 dated 14/03/2025 for Listed Building Consent - Change of use and conversion o

  Received 9 Jun, published by the council 24 Jul 2026 Conditions
• 5/2026/1680 Awaiting decision

  143 - 145 Harper Lane Shenley Radlett Hertfordshire Wd7 9Hg

  Discharge of condition 3 (samples of the materials), 6 (hard and soft landscape), 7 ( Soft landscape), 12 (provision of cycle parking) and 13 Construction Management Statement) of planning permission 5/2023/2462 dated 13/11/2025 for Demolition of existi

  Received 14 Sep, published by the council 23 Sep 2026 Conditions