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

24,303Searchable applications

313Recorded as pending

86%Approval rate · 19,905 approved or refused records

2,761Refused applications

17,144 approved · 2,761 refused · 1,268 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2018/1713/HOUSE
Retrospective installation of roof terrace and boundary fence
14A Huggins Lane Welham Green Hatfield AL9 7LR
Received 27 Jun 2018
Decided - Granted6/2021/2318/HOUSE
Erection of a single storey rear extension
52 Oaklands Avenue Hatfield AL9 7UJ
Received 4 Aug 2021
Decided - Refused6/2020/1972/HOUSE
Erection of two storey side extension with 2 x dormers to the front and 2 x to rear and new front boundary entrance gates and wall.
99 The Ridgeway Cuffley Potters Bar EN6 4BG
Received 7 Aug 2020
Decided - Granted6/2025/1691/EM
Erection of a single storey rear extension following demolition of conservatory
59 Woodhall Lane Welwyn Garden City AL7 3TG
Received 6 Aug 2025
Decided - Granted6/2022/1375/MAJ
Hybrid Planning Application: Full planning permission for erection of 97 dwellings (including affordable housing); public open space and amenity space (including Children’s Play); associated landscaping and ecological enhancements; internal highways, parking, footpaths, cycleways, drainage, utilities, and service infrastructure; new access arrangements via A1000, Hollybush Lane, Ascots Lane (pedestrian/cycle only) and Elliott Close (pedestrian/cycle only) and highway improvements along A1000 Outline planning permission for up to 243 dwellings (including affordable housing); cricket pitches with ancillary pavilion (up to 240sqm) and parking; a civic square; up to 270sqm of Class E/F2 space; public open and amenity space (including Children’s Play); associated landscaping and ecological enhancement work; internal highways, parking, footpaths, cycleways, drainage, utilities and service infrastructure (with all matters reserved apart from access).
Land at Hollybush Lane, to the east of A1000 and north of Ascots Lane, Creswick, Welwyn Garden City
Received 14 Jun 2022
Decided - Withdrawn6/2019/2396/EM
Removal of chimney, and installation of solar panels and solar water heater
180 Heronswood Road Welwyn Garden City AL7 3EU
Received 26 Sept 2019
Decided - Refused6/2023/1830/FULL
Erection of 3-storey side extension for conversion to 3 flats
16 Comet Road Hatfield AL10 0SX
Received 1 Sept 2023
Decided - Granted6/2017/0744/PN8
Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 4m in height and 3m to the eaves.
8 Vicarage Close, Northaw Potters, Bar, EN6 4NY
Received 10 Apr 2017
Decided - Refused6/2022/2011/FULL
Erection of replacement outbuilding in the Green Belt (part retrospective)
Linden Lodge Bulls Lane Hatfield Hertfordshire AL9 7BB
Received 30 Aug 2022
Decided - Granted6/2016/1354/HOUSE
Conversion of garage to habitable space and erection of two storey side extension and side conservatory
1 Hawthorns, Welwyn Garden City, AL8 7SE
Received 4 Jul 2016
Decided - Granted6/2023/0832/LAWP
Certificate of lawfulness for the erection of a garden outbuilding and change rear door to rear window
184 Knightsfield Welwyn Garden City AL8 7RJ
Received 18 Apr 2023
Decided - Granted6/2016/2315/HOUSE
Erection of double storey side, single storey rear and single storey front extensions
389 St Albans Road West Hatfield AL10 9RU
Received 3 Nov 2016
Decided - Granted6/2023/1619/COND
Submisson of details pursuant to condition 2 (Materials) on planning permission 6/2023/0127/FULL
Danecroft Riding Stables 1A Vera Lane Digswell Welwyn AL6 0EW
Received 4 Aug 2023
Decided - Granted6/2017/1513/HOUSE
Erection of a single storey and part two storey side extension and the installation of 1 side dormer and 4 rooflights to facilitate conversion of loft to habitable space
23 Mardley Wood Welwyn AL6 0UY
Received 12 Jul 2017
Decided - Granted6/2017/1530/PN8
Prior approval for the erection of a single storey rear extension measuring 3.5m in depth, 3.0m in height and 3.0m to the eaves
47 Broomhills Welwyn Garden City AL7 1RE
Received 12 Jul 2017
Decided - Granted6/2020/2488/COND
Submission of details pursuant to condition 15 (external lighting) on planning permission 6/2019/1382/FULL
Kellard House (formally Entech House) London Road Woolmer Green SG3 6JE
Received 29 Sept 2020
Appeal Decided - Dismissed6/2017/2870/EM
Remove Silver Birch tree and replace with smaller variety such as Amelanchier tree or Magnolia tree
43 Digswell Park Road Welwyn Garden City AL8 7NW
Received 11 Dec 2017
Decided - Withdrawn6/2023/1979/VAR
Variation of condition 15 (acoustic screening) on planning permission 6/2019/2431/MAJ
Link Drive Car Park Link Drive Hatfield AL10 8TY
Received 26 Sept 2023
Decided - Refused6/2019/0900/EM
Erection of 2 x two-bedroom semi-detached dwellings with associated vehicular access and parking
54 Bridge Road Welwyn Garden City AL8 6UR
Received 15 Apr 2019
Decided - Granted6/2016/2467/EM
Erection of single storey side and rear extension
8 Boxfield Welwyn Garden City AL7 4PT
Received 21 Nov 2016
Decided - Refused6/2022/2520/TPO
To excavate along driveway edge along the side of number 16 to a depth of 600mm below ground level. Carefully sever roots & install a root barrier to protect the driveway from future damage. The roots over time have caused multiple areas of damage. TPO 571 (2016)
16 Bennett Close Welwyn Garden City AL7 4JA
Received 3 Nov 2022
Decided - Granted6/2025/2457/HOUSE
Erection of a single storey rear extension, gable ended rear roof extension and front roof lights, alterations to fenestration and external materials, removal of chimney and demolition of detached garage
69 Westland Drive Brookmans Park AL9 7UG
Received 24 Nov 2025
Decided - Granted6/2020/1551/TPO
Reduce 4x Lime trees Reduce Hornbeam tree group Reduce 1x Oak tree All back to previous pruning points. Covered by TPO 53
6 The Avenue Welwyn AL6 0PN
Received 30 Jun 2020
Decided - Granted6/2017/0547/FULL
Erection of a two storey building containing 10 x 2 bedroom apartments with accommodation in roof slope (Amendment to planning permission reference 6/2016/1950/FULL).
Land adjacent to 82 Great North Road Welwyn AL6 0TA
Received 20 Mar 2017

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

View all applications

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