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

37,763Searchable applications

335Recorded as pending

86%Approval rate · 31,528 approved or refused records

4,425Refused applications

27,103 approved · 4,425 refused · 2,032 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 26 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2020/0837/HOUSE
Erection of basement swimming pool
Just House Coopers Lane Northaw Potters Bar EN6 4NJ
Received 6 Apr 2020
Appeal Decided - DismissedN6/2015/0750/FP
Erection of side extension and part change of use of A1 (Retail Unit) to A5 (Fish & Chip Takeaway)
Flat 1 2 - Westfield Welwyn Garden City AL7 1QS
Received 18 Aug 2015
Decided - Granted6/2024/1762/TPO
Oak tree to reduce back to old pruning points (TPO 76 T8)
40 Parkside Welwyn AL6 9DQ
Received 12 Sept 2024
Decided6/2022/2020/TC
Willow Tree (T1) located in Lockleys Drive Allotment Gardens. Large cracks and holes have appeared since the last inspection and the trunk appears to be hollow. Fell tree and replant with willow.
Civic Centre Lockleys Drive Welwyn Hertfordshire AL6 9NT
Received 31 Aug 2022
Decided - Granted6/2021/1967/HOUSE
Erection of single storey front extension
20 Astwick Avenue Hatfield AL10 9LA
Received 29 Jun 2021
Under Consideration6/2026/0708/VAR
Variation or removal of Condition 2 (noise limiting system) and removal of Condition 3 (overarching Travel Plan) of planning permission 6/2022/2793/VAR
North Mymms Park Tollgate Road North Mymms AL9 7TR
Received 21 Apr 2026
Decided - Granted6/2024/1124/COND
Submission of details pursuant of conditions 7 and 30 (Location of Electric Car Charging Points), on planning permission 6/2019/3024/MAJ
29 Broadwater Road Welwyn Garden City AL7 3BQ
Received 17 Jun 2024
Decided - WithdrawnS6/2014/0844/FP
Conversion of three floors of existing B1 offices over shops to 6 two bed flats(C3)
74-78 Town Centre, Hatfield, AL10 0JW
Received 16 Apr 2014
Decided - Granted6/2019/0586/HOUSE
Alterations to conservatory, storage room and garden room and construction of bicycle and bin store
61 Bradmore Way Brookmans Park Hatfield AL9 7QZ
Received 13 Mar 2019
Decided - Granted6/2019/1048/EM
Retention of existing conservatory
255 Heronswood Road Welwyn Garden City AL7 3JH
Received 30 Apr 2019
Decided - Granted6/2016/1918/EM
Erection of single storey rear extension (revised width)
31 Newfields, Welwyn Garden City, AL8 6YS
Received 16 Sept 2016
Decided - Granted6/2022/0209/COND
Submission of details pursuant of condition 1 (construction method statement) on application 6/2021/2689/PN27
45 Codicote Road Welwyn AL6 9TT
Received 28 Jan 2022
Appeal Decided - Dismissed6/2021/2336/LB
Erection of a single storey rear extension.
Woodman Inn 21 Warrengate Road North Mymms Hatfield AL9 7TT
Received 6 Aug 2021
Decided - Granted6/2021/0250/VAR
Variation of condition 3 (approved drawings) on planning permission 6/2019/2587/VAR
Stanborough School Lemsford Lane Welwyn Garden City AL8 6YR
Received 27 Jan 2021
Decided - Granted6/2023/1953/EMT
1 x Ash tree to fell to ground level and grind stump as tree has various types of fungus on stem and in the crown of the tree
41 High Oaks Road Welwyn Garden City AL8 7BT
Received 21 Sept 2023
Decided6/2025/2396/TC
T1 Oak to 20% crown reduction and 2 metre reduction. T2 Oak to fell (due to Acute Oak Decline).
29 Woodland Rise Welwyn Garden City AL8 7LJ
Received 14 Nov 2025
Decided - GrantedS6/2013/2260/DS
Partial discharge of condition 1 (materials) of application S6/2013/0262/LO
Hatfield Railway Station, Great North Road, HATFIELD, AL9 5AB
Received 28 Oct 2013
Decided6/2022/2753/COND
Confirmation that all conditions associated with planning permission N6/2012/0282/DE have been discharged
31 Appletree Way Welwyn Garden City AL7 2FE
Received 5 Dec 2022
Decided6/2016/0175/EM
Enlarge existing dropped kerb to a double
27 Marsden Green, Welwyn Garden City, AL8 6YD
Received 29 Jan 2016
Decided - GrantedS6/2014/1086/FP
Erection of first floor side extension, loft conversion with three dormer windows and two rooflights
90 Pine Grove, Brookmans Park, Hatfield, AL9 7BW
Received 13 May 2014
Decided6/2020/1880/TC
Fell 1 x contorted Willow - in a conservation area
2 Mandeville Rise Welwyn Garden City AL8 7JU
Received 29 Jul 2020
Decided - Granted6/2025/0721/EMT
T2 Douglas Fir to be felled - overhanging driveway and footpath, roots are damaging the drive and cracking pavement.
34 High Oaks Road Welwyn Garden City AL8 7BH
Received 16 Apr 2025
Decided - GrantedN6/2015/1239/FP
Erection of a single storey and part two storey rear extensions with dormer
60 Attimore Road Welwyn Garden City AL8 6LP
Received 11 Jun 2015
Decided - Refused6/2016/0926/EM
Existing extension of driveway and landscaping works to front garden
88 Pentley Park, Welwyn Garden City, AL8 7SG
Received 11 May 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