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

39,585Searchable applications

344Recorded as pending

86%Approval rate · 33,130 approved or refused records

4,738Refused applications

28,392 approved · 4,738 refused · 2,168 withdrawn. Received dates in our records: 29 Apr 1948 to 21 Oct 2026. Most recent record check: 27 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/1725/EMT
Reduce 1 x Cherry Tree [T1] by 1.5m Reduce 1 x Cherry Tree [T2] by no more than 1.5m height & width. Reduce 1 x Laburnum Tree [T3] by 1m height & width. Fell 1 x Lawson Cypress Tree [T4] Reduce 1 x Laburnum Tree [T5] by 1m height & width.
18 The Old Drive Welwyn Garden City AL8 6TB
Received 14 Jul 2020
Decided - Granted6/2024/1131/COND
Submission of details pursuant to condition number 1 (External Materials) and condition number 2 (Hard and Soft Landscaping) on planning permission 6/2023/1664/FULL
Chancellors School Pine Grove Brookmans Park AL9 7BN
Received 17 Jun 2024
Decided - GrantedN6/2015/0171/LUP
Certificate of lawfulness for the construction of replacement entrance gates, piers and fence
2 Oaklands Rise Welwyn AL6 0RQ
Received 28 Jan 2015
Decided - Refused6/2021/2624/HOUSE
Erection of a single front, two storey side and two storey rear extension, with installation of roof lights to facilitate the conversion of the loft into a habitable space and amended driveway layout.
45 Brookmans Avenue Hatfield AL9 7QH
Received 9 Sept 2021
Decided - GrantedN6/2008/0806/FP
ERECTION OF REPLACEMENT FRONT WALL AND TWO CENTRALLY OPENING TIMBER GATES
39 London Road Woolmer Green Knebworth SG3 6JE
Received 20 May 2008
Decided - Granted6/2018/1117/FULL
Erection of a 3-bedroom chalet style bungalow
13A Station Road Welham Green Hatfield AL9 7PN
Received 30 Apr 2018
Decided - Granted6/2022/0482/HOUSE
Demolition of existing extension and replacement with new single storey rear extension
2A The Green Welwyn AL6 9EA
Received 1 Mar 2022
Decided - Granted6/2022/0171/TPO
1 x hornbeam stem to cut to as near to ground level as possible. Reduce lateral growth over garden of number 21 Bracken Lane by 2m.
22 Bracken Lane Welwyn AL6 0RB
Received 24 Jan 2022
Decided - Refused6/2026/0976/HOUSE
Erection of single storey outbuilding with accommodation within the roof following demolition of existing outbuilding
Essendon Place London Lodge High Road Essendon Hatfield AL9 6HU
Received 3 Jun 2026
Appeal Decided - Allowed6/2018/0756/FULL
Change of Use from A1 (Post Office) to Sui Generis (Proposed Nail Bar).
11A Bradmore Green Brookmans Park Hatfield AL9 7QW
Received 20 Mar 2018
Decided - Split6/2020/0343/COND
Submission of details pursuant to condition 1 (sample of materials) 2 (noise protection scheme) 3 (car parking provision) and 4 (refuse and recycling provision) on planning permission 6/2018/2170/FULL
Land adjacent to flats 37-48 Lambs Close Cuffley Potters Bar EN6 4HD
Received 6 Feb 2020
Decided - RefusedN6/2004/1353/FP
SINGLE STOREY REAR EXTENSION
11 Hillside Welwyn Garden City AL7 4PZ
Received 8 Sept 2004
Decided - Granted6/2020/1786/HOUSE
A two storey side extension, single storey rear extensions with alterations to materials, fenestration and front and rear landscape alterations.
32 Turpins Chase Welwyn AL6 0RR
Received 21 Jul 2020
Decided - GrantedW6/2014/2211/EM
Erection of first floor rear extension
11 Dellcott Close, Welwyn Garden City, AL8 7BB
Received 6 Oct 2014
Decided - Granted6/2016/0818/MAJ
Replacement of existing pitched roof with a mansard style roof extension in connection with the provision of 12 self-contained flats comprising 7 two bed, 4 one bed and 1 studio; enlargement of 23 windows on rear elevation at first and second floor levels, replacement of all first and second floor timber framed fenestration with uPVC equivalents
Stonehills House, Stonehills, Welwyn Garden City, AL8 6NH
Received 3 May 2016
Decided - GrantedN6/2014/1336/FP
Replacement shopfront to include extension to the frontage
McDonalds Restaurant, 63 Howardsgate, Welwyn Garden City, AL8 6BB
Received 12 Jun 2014
Decided - Granted6/2021/3524/HOUSE
Erection of temporary mobility scooter housing on a temporary concrete slab located in the site boundary.
125 Knightsfield Welwyn Garden City AL8 7JD
Received 21 Dec 2021
Decided - Granted6/2022/2186/FULL
Repositioning of access gates, installation of new crossover on Hertfordshire Highways land, retention of two storey storage containers, single storey rear extension and hardstanding area for parking, loading and turning of vehicles.
126 Great North Road Hatfield AL9 5JN
Received 21 Sept 2022
Decided - GrantedN6/2010/0307/TE
REDUCE CROWN OF HAZEL TREE BY 50%
60 BRIDGE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6UR
Received 16 Feb 2010
Decided - RefusedS6/2006/0468/FP
RETENTION OF STABLES AND MACHINE STORE
Forest Hills Newgate Street Village Hertford SG13 8RA
Received 10 Apr 2006
Decided - Granted6/2020/2349/EMH
Erection of single storey rear extension
2 Melbourne Court Welwyn Garden City AL8 6LL
Received 14 Sept 2020
Decided - RefusedN6/2009/0020/FP
ERECTION OF THREE DETACHED HOUSES WITH GARAGES, ACCESS ROAD AND LANDSCAPING FOLLOWING DEMOLITION OF EXISTING DWELLING
51 Harmer Green Lane Digswell Welwyn AL6 0AP
Received 6 Jan 2009
Decided - Granted6/2015/2373/HOUSE
Erection of single storey rear and side extension
104 Knella Road, Welwyn Garden City, AL7 3NQ
Received 24 Nov 2015
Decided - Granted6/2016/1961/EM
Fell 2x beech and crown reduce a third tree by 25% and removal of Cherry tree in front garden
17 Reddings, Welwyn Garden City, AL8 7LA
Received 14 Sept 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.
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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.
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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.
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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