England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates

24,834Searchable applications

313Recorded as pending

86%Approval rate · 20,376 approved or refused records

2,807Refused applications

17,569 approved · 2,807 refused · 1,310 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

Planning information Planning and building Local plan Our Local Plan Pre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation Area Article 4 directions Article 4 Directions

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records

Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

Decided - Refused6/2026/1287/LAWE
Certificate of Lawfulness for existing use of a former agricultural building (Barn) as a self- contained single residential dwelling house (Use Class C3) following its conversion and continuous occupation for a period in excess of 10 years prior to the date of this application
Woodhurst Farm, Stables Cattlegate Road Northaw Potters Bar EN2 8AU
Received 22 Jul 2026
Decided - Granted6/2023/2269/FULL
Erection of new dwelling following the demolition of existing dwelling and outbuildings
Woodlands Coopers Lane Road Northaw Potters Bar EN6 4DJ
Received 9 Nov 2023
Decided - Split6/2017/2852/COND
Submission of details pursuant to conditions 4 (External material samples) and 5 (details of dormer and replacement windows) on planning permission 6/2016/0818/MAJ
Stonehills House Stonehills Welwyn Garden City AL8 6NH
Received 7 Dec 2017
Decided - Granted6/2025/1980/EMT
T1 Robinia- Fell to ground level Two decay points at base on both sides of trunk and has recently dropped large branches
21 Valley Road Welwyn Garden City AL8 7DH
Received 15 Sept 2025
Decided - Granted6/2016/2468/COND
Approval of details reserved by condition 3 (Parking) on planning permission 6/2016/1328/HOUSE
206 Bishops Rise Hatfield AL10 9QU
Received 21 Nov 2016
Decided - Refused6/2023/1712/HOUSE
Erection of first floor extension and replacing and raising roof height. Installation of front, side and rear dormer windows, inserting of rooflights, formation of rear juliet balcony and erection of new front porch, and alterations to the existing fenestration including new windows and render finish to external walls
5 Larch Lane Welwyn AL6 0UJ
Received 15 Aug 2023
Decided - Granted6/2019/1989/HOUSE
Erection of a single storey side extension and alterations to fenestration
23 Pentley Park Welwyn Garden City AL8 7RT
Received 9 Aug 2019
Decided - Granted6/2022/2815/HOUSE
Erection of single storey front extension
10 Deerswood Avenue Hatfield AL10 8RX
Received 12 Dec 2022
Decided - Granted6/2016/1108/TPO
Reduce row of Western Red Cedar tree (T1)back to old topping points and remove side over drive - Conservation Area
22 Ayot Green, Ayot St Peter, Welwyn, AL6 9AB
Received 3 Jun 2016
Decided - Granted6/2016/0794/LB
Reconditioning of metal-framed windows on the ground floor, replacement of sills and bottom rails of first floor east-facing windows and ground floor dining room window, replacement of gable window in north elevation of single storey forge wing.
The Manor House, Essendon Hill, Essendon, Hatfield, AL9 6AJ
Received 26 Apr 2016
Decided - Granted6/2020/0690/HOUSE
Erection of single storey rear, two storey side extension
2 Ellenbrook Crescent Hatfield AL10 9RP
Received 11 Mar 2020
Decided - Granted6/2016/2633/PN8
Prior approval for the erection of a single-storey rear extension measuring 3.54m. in depth, 2.83m. in height and 2.83m. to the eaves
78 High Dells Hatfield AL10 9HU
Received 9 Dec 2016
Decided6/2025/1857/TC
T1 Sycamore tree crown reduction 30%
228 Handside Lane Welwyn Garden City AL8 6TD
Received 1 Sept 2025
Decided - Refused6/2020/1892/HOUSE
Demolition of existing freestanding garage, and erection of a single-storey side extension, and erection of a two-bay car-port within the rear garden.
1 Bacons Drive Cuffley Potters Bar EN6 4EF
Received 30 Jul 2020
Decided - Granted6/2019/2888/VAR
Variation of condition 2 of planning permission 6/2016/0913/FULL
Land at Great North Road, Stanborough, Welwyn Garden City, AL8 7TE
Received 18 Nov 2019
Decided - Withdrawn6/2024/0920/EM
Erection of a single storey rear extension, loft conversion with rear facing dormer and rooflight to existing rear facing roof, timber gate and glazed canopy to side access and alterations to existing side elevation, following the demolition of outbuilding
196 Handside Lane Welwyn Garden City AL8 6TD
Received 17 May 2024
Decided - Granted6/2025/1533/TC
1 x Field maple to reduce by around 50% crown volume by removing 2 main stems arising from the crown union. The field maple has a large decayed base. covered by TPO 1156 G6.
19 Warren Way Digswell Welwyn AL6 0DQ
Received 16 Jul 2025
Decided - Granted6/2017/1906/HOUSE
Erection of a detached double garage following demolition of existing garage
9 Mount Way Welwyn Garden City AL7 4LD
Received 24 Aug 2017
Decided6/2020/1796/TC
Fell 1x Holly tree
13 Sherrardspark Road Welwyn Garden City AL8 7JW
Received 22 Jul 2020
Decided - Granted6/2016/0355/EM
Formation of hardstanding to front garden.
165 Parkway, Welwyn Garden City, AL8 6JA
Received 2 Mar 2016
Under Consideration6/2025/1174/COND
Submission of details pursuant to condition number 8 (Site Wide Strategies) on planning permission 6/2021/0516/VAR
Land to North East of Welwyn Garden City Panshanger Welwyn Garden City AL7 2QJ
Received 11 Jun 2025
Decided - Granted6/2019/1804/EIA
Request for a screening opinion (s) on the redevelopment of three sites: One Town Centre Hatfield AL10 0JZ including: 1/1a and 3-9 Town Centre Small compound between wellfield road and Town Centre (to rear of 16 to 25 White Lion Square Hatfield and public realm including part of Kennel Wood Lane Car Parking The Common Car Park, 22 The Common, Hatfield AL10 0LP Link Drive
The Common Car Park, Link Drive and Hatfield Town Centre AL10 0JZ
Received 17 Jul 2019
Decided - Granted6/2026/1193/TPO
T1 Ash 12m - Decay throughout crown, recently shed large limb, pollard to 6m to reduce risk of future snap outs G1 Mixed species (up to 16m): Reduce back Yew and Lime by up to 3m to boundary and fell dead Elm. Crown lift to 6m Elm, Lime, Horse Chestnut, Elm and Horse Chestnut. Work required due to crowns encroaching and obstructing footpaths and encroaching the main road
10 Gresley Court Little Heath Potters Bar EN6 1LF
Received 9 Jul 2026
Decided - Refused6/2019/1987/HOUSE
Erection of outbuilding
Hill Farm Cottage 1-2 Hill Farm Lane Ayot St Lawrence AL6 9BN
Received 9 Aug 2019

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

Understanding planning · 13 min read
Planning application documents: what to read first
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
UK research
Published 16 Jul 2026Updated 13 Sept 2026
Understanding planning · 13 min read
Planning permission drawings: how to read plans
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.
UK research
Published 6 Aug 2026Updated 13 Sept 2026
Property research · 13 min read
Planning approval rates: how to read council statistics
Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
UK research
Published 13 Aug 2026Updated 13 Sept 2026

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

Check collection coverage