Planning application
1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De
Works: Extension Loft or dormer Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Construction of part single, part two storey rear extension, new end of garden outbuilding, new external hard landscaping and associated alterations to the existing house. First floor side elevation openings. Enlargement to rear dormer. Materials changes.
As published by the council, reference 5/2025/2330
Application record
- Reference
- 5/2025/2330
- Type
- Householder
- Status
- Under Consideration
- Received
- 22 Dec 2025
- Validated
- 23 Dec 2025
- Ward
- Harpenden West
- Parish
- Harpenden Town
- Postcode
- AL5 2DE
Site history
Applications at this address on the St Albans register
This site has had 3 applications since 2017: 2 approved, 0 refused.
-
5/2017/3242 Granted
1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De
Single storey side extension, part single, part two storey rear extension, insertion of windows, alterations to openings and installation of rooflights following demolition of existing rear extension. Removal of main chimney stack (resubmission following
-
5/2017/2729 Granted
1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De
Discharge of Condition 7 (protection of trees) to planning permission 5/2017/0570 dated 27/04/2017 for Single storey side extension , part single part two storey rear extension with rooflights, rooflights to the loft and alterations to openings following
Timeline
Dates from the published record
-
22 Dec 2025
Received by St Albans
-
23 Dec 2025
Validated
Checked as complete and ready for consideration.
-
24 Jul 2026
Added to PlanIndex
-
23 Sep 2026
Status changed to Under Consultation
Previously Under Consideration.
-
11 Oct 2026
Status changed to Under Consideration
Previously Under Consultation.
-
Decision
Awaiting decision
Decision expected by 17 February 2026, 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.
Documents
Plans, drawings, consultee responses and the officer's report
39 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with St Albans for determination, against a statutory target of eight weeks. Over the last year St Albans decided householder applications in a median of 110 days. More in our guide to how long planning decisions take.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
3 Avenue St Nicholas Harpenden Al5 2De
1 x Hazel, 1 x Oak, 1 x Sycamore - Reduce back to previous pollard points.
Granted Trees 2 docs -
1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De
Discharge of Condition 7 (protection of trees) to planning permission 5/2017/0570 dated 27/04/2017 for Single storey side extension , part single part two storey rear extension with rooflights, rooflights to the loft and alterations to openings following
Granted Conditions Extension Loft or dormer +1 4 docsSmall domestic -
1 Avenue St Nicholas Harpenden Hertfordshire Al5 2De
Single storey side extension, part single, part two storey rear extension, insertion of windows, alterations to openings and installation of rooflights following demolition of existing rear extension. Removal of main chimney stack (resubmission following
Granted Householder Extension Loft or dormer +2 12 docsSmall domestic -
4 The Drive Harpenden Hertfordshire Al5 2El
T3 Cherry - Fell G2 Sycamore & Ash - Crown reduction by 3-4m approx Lawson Cypress Group - Reduction in height by 3-4m approx T1 Lawson Cypress (suffering)
Granted Trees 5 docs -
11 Rothamsted Avenue Harpenden Hertfordshire Al5 2Dd
T2 Sycamore - Crown reduction by. 3-4m approx (primary cuts) and crown clean T1 Oak - Crown reduction by 3-4m approx (primary cuts) & crown clean. Removal of basil growth and crown lift south side to balance.
Granted Trees 4 docs -
15A Rothamsted Avenue Harpenden Al5 2Dd
Reduce Laurel hedge to 4m height. Fell dead Hawthorn (exempt work for latter tree).
Granted Trees 3 docs
Other householder applications
In St Albans
-
5/2026/0517 Granted
28 White Hedge Drive St Albans Hertfordshire Al3 5Tt
Proposed two-storey rear extension, loft conversion, and alterations to the existing front entrance porch
-
5/2026/1055 Granted
39 Oakwood Drive St Albans Hertfordshire Al4 0Ul
Erection of a part single-storey, part two-storey wraparound extension, loft conversion including a rear dormer and rooflights, and construction of a front porch
-
5/2026/1278 Granted
39 Foxcroft St Albans Hertfordshire Al1 5Ss
Proposed C3 residential extension including two storey front and single storey front and side with internal alterations
-
5/2026/1170 Granted
20 Nimrod Close St Albans Hertfordshire Al4 9Xy
Extension of existing raised rear terrace with privacy screening and associated alterations to rear fenestration
-
5/2026/1338 Granted
16 Hunters Ride Bricket Wood Hertfordshire Al2 3Lx
Proposed front porch