Planning application
4 Brookmans Avenue Brookmans Park AL9 7QJ
Works: Extension 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
Retention of single storey timber structure as gym and addition of storm porch
As published by the council, reference 6/2026/1477/HOUSE
Application record
- Reference
- 6/2026/1477/HOUSE
- Type
- HOUSEHOLDER APPLICATION
- Status
- Under Consultation
- Received
- 21 Aug 2026
- Validated
- 21 Aug 2026
- Ward
- Brookmans Park & Little Heath
- Parish
- North Mymms
- Decision by
- Delegated
- Postcode
- AL9 7QJ
Comment by 29 September 2026
The council is taking comments on this application until then. Comments go to Welwyn Hatfield through their own planning portal.
Site history
Applications at this address on the Welwyn Hatfield register
This site has had 2 applications since 2026.
-
6/2026/1449/COND Awaiting decision
4 Brookmans Avenue Brookmans Park AL9 7QJ
Submission of details pursuant to Condition 4 (landscaping) on planning permission 6/2023/0622/FULL
Timeline
Dates from the published record
-
21 Aug 2026
Received by Welwyn Hatfield
-
13 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 16 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Welwyn Hatfield took a median of 58 days over the applications it decided in the last year.
What happens while it is decided
This application is with Welwyn Hatfield for determination, against a statutory target of eight weeks. Over the last year Welwyn Hatfield decided householder applications in a median of 60 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 500 metres
-
4 Brookmans Avenue Brookmans Park AL9 7QJ
89% historically approved · decision due ~13 Oct
Submission of details pursuant to Condition 4 (landscaping) on planning permission 6/2023/0622/FULL
Awaiting decision Conditions -
8 Bluebridge Road Brookmans Park AL9 7SB
Submission of details pursuant to condition number 1 (details of proposed crown roof) on planning permission 6/2021/1633/HOUSE
Granted ConditionsMajor scheme -
8 Bluebridge Road Brookmans Park AL9 7SB
Roof extension, insertion of rear dormer window plus three side rooflights to create a loft conversion.
Granted Householder Extension Loft or dormer +1Domestic -
10 Brookmans Avenue Brookmans Park AL9 7QJ
Submission of details pursuant to condition number 1 (Arboricultural Method Statement & Tree Protection Plan) on planning permission 6/2022/2406/HOUSE
Granted Conditions Trees 1 docMajor scheme -
59 Bradmore Green Brookmans Park Hatfield AL9 7QS
Single storey rear extension to no 61 Provision of roof terrace to no 62 Enlargement of rear dormers Internal reconfiguration to flats 60, 61 and 62 Provision of front garden for flats 59, 60 and 61 Construction of front wall Provision of cycle and refuse area Reconfiguration of parking area
Granted Full applications New dwelling Extension +1Small domestic -
59 Bradmore Green Hatfield AL9 7QS
Erection of front wall to provide amenity spaces with enlargement of rear dormer and internal reconfiguration of flats 60, 61 and 62
Granted Full applications New dwelling Loft or dormer
Other householder applications
In Welwyn Hatfield
-
6/2026/1198/HOUSE Granted
9 Mardley Hill Welwyn AL6 0UE
Erection of single storey front, side and rear extension, raising the existing roof and formation of rear dormer. Alterations to the fenestration, including, installation of new windows and doors and external rendering and cladding, following the demolition of garage and porch
-
6/2026/1257/HOUSE Granted
21 The Swallows Welwyn Garden City AL7 1BX
Garage conversion with alterations to openings to front and rear elevations
-
6/2026/1293/HOUSE Granted
33 Claves Crescent Welwyn Garden City AL7 1WN
Erection of a single storey rear conservatory
-
6/2026/1202/HOUSE Granted
40 Cecil Crescent Hatfield AL10 0HG
Erection of single storey rear extension
-
6/2026/1228/HOUSE Granted
109 Mount Way Welwyn Garden City AL7 4LA
Erection of single storey front extension