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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 9 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/1710/HOUSE
Erection of a single storey side extension
Elm Cottage Great North Road Welwyn Garden City AL8 7TF
Received 11 Jul 2019
Decided - Granted6/2019/0888/COND
Submission of details pursuant to conditions 1 (materials)on planning application 6/2019/0289/HOUSE
31-33 Ayot Green, Ayot St Peter, Welwyn, AL6 9AB
Received 11 Apr 2019
Decided - Withdrawn6/2022/0330/PN10
Prior approval for a change of use from agricultural buildings to 5 dwellinghouses
Holwell Court Farm Holwell Court Hatfield AL9 5RL
Received 14 Feb 2022
Decided - Refused6/2024/0589/HOUSE
Erection of single storey storage building
94 Harmer Green Lane Digswell Welwyn AL6 0EP
Received 26 Mar 2024
Decided - GrantedN6/2009/1574/LU
CERTIFICATE OF LAWFULNESS FOR A PROPOSED SINGLE STOREY REAR EXTENSION
216 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7RQ
Received 23 Jul 2009
Decided - Granted6/2025/0262/TPO
T1 Sycamore height 12m spread 1m. Dead tree to be removed T2 Sycamore height 12m spread 1m, Dead tree to be removed T3, 4, 5, and 6 - 1m reduction and removal of dead and diseased wood T3 Horse Chestnut height 16m spread 10m T4 Silver Birch height 17m spread 3m T5 Hornbeam height 16m spread 8m T6 Beech height 16m spread 9m
47 Pine Grove Brookmans Park AL9 7BL
Received 12 Feb 2025
Decided - GrantedW6/2009/2269/EM
ERECTION OF 0.9M TRELLIS FENCE OF FRONT SIDE BOUNDARY
1 PENTLEY PARK, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7RT
Received 12 Oct 2009
Appeal Decided - Dismissed6/2020/3103/FULL
Demolition of existing building and erection of three storey development to accommodate nine residential units with parking, landscaping and bin store. Reallocation of existing cycle store serving adjacent flats (41-43 Roe Green Lane) to allow for proposed car parking entrance and additional cycle storage.
39A Roe Green Lane Hatfield AL10 0SH
Received 23 Nov 2020
Decided - Granted6/2018/2394/EM
Erection of replacement conservatory
509 Howlands Welwyn Garden City AL7 4HS
Received 18 Sept 2018
Decided - WithdrawnN6/2013/1617/DS
Discharge of condition 3 (materials), 4 (Landscaping), 5 (construction Method Statement), 7 (Floor Levels) & 9 (Tree Works) of planning permission N6/2013/1055/S73B - Demolition of existing dwelling and garage and erection of two dwellings with garages and ancillary works
5 Oaklands Rise Welwyn AL6 0RH
Received 30 Jul 2013
Decided - GrantedS6/2013/1066/NM
Amendment to application S6/2011/2614/FP to show reduced width of semi-detached swelling by '200mm' and reduced site width
35 Lemsford Road Hatfield AL10 0DL
Received 8 May 2013
Decided6/2022/2447/TC
Fell T1 and T2 dead apple trees and remove stumps and remove 2 dead branches from ash tree T3
36 High Oaks Road Welwyn Garden City AL8 7BH
Received 24 Oct 2022
Decided - RefusedS6/2008/1864/FP
ERECTION OF NEW DETACHED DWELLING FOLLOWING DEMOLITION OF EXISTING DWELLING
EDGE HOUSE, KENTISH LANE, BROOKMANS PARK, HATFIELD, HERTFORDSHIIRE, AL9 6NH
Received 29 Sept 2008
Decided - WithdrawnW6/2006/0349/EM
ERECTION OF TWO STOREY AND SINGLE STOREY SIDE AND REAR EXTENSIONS AND REAR CONSERVATORY
120 Handside Lane, Welwyn Garden City, AL8 6SZ
Received 20 Mar 2006
Decided - Granted6/2020/0726/FULL
Formation of a new vehicular access
2A St Albans Road East, Hatfield, AL10 0HE
Received 16 Mar 2020
Decided - GrantedS6/2006/0163/FP
ERECTION OF REAR CONSERVATORY
58 Bluebell Way Hatfield AL10 9FJ
Received 7 Feb 2006
Decided - Granted6/2024/1794/HOUSE
Erection of single storey rear extension and installation of side ground floor window, following the demolition of existing conservatory
30 Springfields Welwyn Garden Cit AL8 6XP
Received 17 Sept 2024
Decided - Granted6/2026/0929/FULL
Installation of 1 no. single padel court
Old Owen's Sports Ground Coopers Lane Potters Bar EN6 4NF
Received 27 May 2026
Decided - Granted6/2018/0021/VAR
Variation of condition 4 (approved surface water drainage assessment) on planning permission 6/2017/1029/VAR, dated 24/11/2017
20 Black Fan Road Welwyn Garden City AL7 1QA
Received 3 Jan 2018
Decided - Granted6/2021/1599/HOUSE
Erection of a single storey rear extension following the demolition of existing conservatory, to create a party wall with No. 3 and No. 5 Little Rivers
4 Little Rivers Welwyn Garden City AL7 1QJ
Received 19 May 2021
Appeal Decided - Dismissed6/2020/1487/LAWP
Certificate of lawfulness for the replacement of outbuilding
Skyborne 21 Kentish Lane Hatfield AL9 6NG
Received 24 Jun 2020
Decided - GrantedS6/2013/0047/FP
Installation of obscured side windows to kitchen and bathroom
46 Campion Road Hatfield AL10 9FT
Received 9 Jan 2013
Decided - Granted6/2018/0844/EM
Erection of a single storey rear extension
240 Daniells Welwyn Garden City AL7 1QQ
Received 29 Mar 2018
Decided - GrantedS6/2013/1093/S73A
Variation of condition 3 (Approved Plans) from planning application S6/2012/0795/FP - Erection of two storey extension to an existing house to form a new three bedroomed dwelling together with new double garage
83 Bluebridge Road, Brookmans Park, HATFIELD, AL9 7UN
Received 28 May 2013

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
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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