England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates

40,297Searchable applications

283Recorded as pending

86%Approval rate · 33,821 approved or refused records

4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 8 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/0671/EMT
1 x Oak to remove 2 x lowest limbs (see annotated picture) reduce remaining overhanging branches by 2.5m in width. 1 x Hornbeam to reduce overhanging branches by 2.5m in width
10 Beehive Green Welwyn Garden City AL7 4BE
Received 21 Mar 2022
Decided - Refused6/2022/1172/LAWP
Certificate of lawfulness for the conversion of garage into habitable space
2 King James Avenue Cuffley Potters Bar Hertfordshire EN6 4LR
Received 23 May 2022
Decided - RefusedW6/2013/1279/EM
Demolition of existing side extension and erection of single storey side extension along with alterations to roof and windows at single storey level
7 Densley Close, WELWYN GARDEN CITY, AL8 7JX
Received 25 Jun 2013
Decided - GrantedW6/2014/0043/TE
Reduce Pine, Oak and Two Ash trees away from BT phone cables
Land at, 32 & 34 High Oaks Road, Welwyn Garden City, AL8 7BH
Received 9 Jan 2014
Decided - GrantedS6/2013/2223/FP
Retention of a shed/summerhouse in rear garden
33 Thornton Road, Little Heath, Potters Bar, EN6 1JJ
Received 21 Oct 2013
Decided - GrantedN6/2014/0922/FP
Erection of single storey rear extension and installation of 6 rooflights
21 Birchall Wood, Welwyn Garden City, AL7 2HL
Received 23 Apr 2014
Decided - GrantedW6/2013/1691/TE
Removal of Christmas Conifer tree
2 The Quadrangle, Welwyn Garden City, AL8 6SG
Received 9 Aug 2013
Decided - Granted6/2015/1587/HOUSE
Erection of single storey rear extension
14 Chestnut Walk Welwyn AL6 0SB
Received 28 Jul 2015
Decided - GrantedN6/2013/0544/FP
Erection of conservatory
65 Great North Road Welwyn Garden City AL8 7TL
Received 11 Mar 2013
Decided - Refused6/2025/2461/FULL
Retrospective permission for removal of click and collect building and canopy and the retention of click and collect building, 2x canopy above and bollards
Tesco Extra Great North Road Hatfield AL9 5JY
Received 25 Nov 2025
Decided - Granted6/2019/1813/FULL
Erection of 1x machinery store and 1x hay barn following demolition of existing Dutch barn
Nyn Manor Vineyards Road Northaw Potters Bar EN6 4PQ
Received 23 Jul 2019
Decided - Granted6/2021/0132/LAWP
Certificate of Lawfulness for the erection of a single storey rear extension
18 Firs Wood Close Northaw Potters Bar EN6 4BY
Received 18 Jan 2021
Decided - Refused6/2018/1759/TPO
Fell 1 x Silver Birch tree (TPO 105) and replace in new location
5 Evergreen Close Woolmer Green Knebworth SG3 6JN
Received 4 Jul 2018
Decided - Granted6/2023/0871/COND
Submission of details pursuant to condition 1 (construction management plan) on planning permission 6/2022/0289/FULL
22A-22C The Common Hatfield AL10 0ND
Received 25 Apr 2023
Decided - Granted6/2022/2091/EM
Erection of part single-storey & part two-storey extension with rooflights; conversion of loft to habitable space with rear-facing dormers; increase in height of parapet walls; replacement windows.
21 Barleycroft Road Welwyn Garden City AL8 6JX
Received 7 Sept 2022
Decided - Granted6/2020/0470/HOUSE
Installation of rear dormer
1 Hall Grove Welwyn Garden City AL7 4PJ
Received 18 Feb 2020
Decided - RefusedN6/2005/1202/TP
WORKS TO OAK TREE T6, COVERED BY TPO 194
6 Broadleaf Grove Welwyn Garden City AL8 7AZ
Received 26 Sept 2005
Decided - Granted6/2016/2089/EM
Erection of two storey rear extension and single storey side and rear extensions
76 Chequers, Welwyn Garden City, AL7 4TA
Received 7 Oct 2016
Decided - Granted6/2018/3150/EM
Erection of a single storey side extension and alteration to the rear fenestration
54 Lemsford Lane Welwyn Garden City AL8 6YJ
Received 11 Dec 2018
Decided - WithdrawnW6/2013/0979/EM
Formation of loft conversion with rear dormer window and additional window on side elevation
9 Beechfield Road Welwyn Garden City AL7 3RG
Received 8 May 2013
Decided6/2022/1695/TC
1 x Cherry to fell to ground level - Cherry has decay throughout the stem. Crown is showing signs of decline
69 Valley Road Welwyn Garden City AL8 7DR
Received 18 Jul 2022
Decided - Withdrawn6/2023/0758/EMT
T1-Eucalyptus-Reduce crown all round by 3-4 metres to maintain size and shape
53 Springfields Welwyn Garden City AL8 6XT
Received 5 Apr 2023
Decided - Granted6/2018/3062/HOUSE
Erection of a single storey rear extension and alterations to existing flat roof
395 Knightsfield Welwyn Garden City AL8 7LY
Received 30 Nov 2018
Decided - Granted6/2016/0541/HOUSE
Proposed single storey front and side infill extension and conversion of existing outhouse with flat roof finish
27 Lark Rise Hatfield AL10 8RN
Received 31 Mar 2016

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