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

40,229Searchable applications

309Recorded as pending

86%Approval rate · 33,738 approved or refused records

4,810Refused applications

28,928 approved · 4,810 refused · 2,212 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2009/1050/LB
PROPOSED NEW WINDOWS, NEW DOOR TO LOWER GROUND FLOOR AND ROOFLIGHT
Holly Hall 13 Church Street Welwyn AL6 9LN
Received 20 May 2009
Decided - Granted6/2021/2928/EMT
To reduce 50ft hornbeam by 30%
16 Mandeville Rise, Welwyn Garden City, AL8 7JU
Received 12 Oct 2021
Decided6/2019/2548/TC
Reduce 1 x Beech tree by 6m
5 Handside Green Welwyn Garden City AL8 6SQ
Received 10 Oct 2019
Decided - Granted6/2016/2533/EM
1 x Apple to reduce by 2-3m in height and 1.5m in width.
56 Woodhall Lane Welwyn Garden City AL7 3TF
Received 28 Nov 2016
Decided - Granted6/2024/1854/EMT
1 x Hornbeam to reduce by approximately 2.5m in both height and width. Tree is growing close (now touching) neighbouring property
53 Parkway Welwyn Garden City AL8 6JF
Received 26 Sept 2024
Decided - Granted6/2018/1779/EM
Erection of single storey rear extension including installation of 3 x rear rooflights to facilitate loft conversion to habitable space
4 Stacklands Welwyn Garden City AL8 6XW
Received 6 Jul 2018
Appeal Decided - Dismissed6/2024/0670/HOUSE
Erection of a two storey side extension, first floor rear extension and the addition of an alleyway
8 Cole Green Lane Welwyn Garden City AL7 3PW
Received 9 Apr 2024
Decided - Granted6/2022/2129/EM
Erection of 1.2m high pailing fence to secure the rear and front elevation of the property
275 Knightsfield Welwyn Garden City AL8 7RA
Received 13 Sept 2022
Under Consideration6/2026/1485/EMT
Remove Ash tree stem to ground level - tree is in the way of fence/boundary line.
82 Attimore Road Welwyn Garden City AL8 6LP
Received 24 Aug 2026
Decided - Granted6/2018/0180/LAWP
Certificate of lawfulness for loft conversion with rear dormers and front velux lights
91 Bluebridge Road Brookmans Park Hatfield AL9 7UN
Received 18 Jan 2018
Decided - Granted6/2016/0170/TPO
Reduce Sycamore tree by 25% and reduce two conifers by 30% located in rear garden - Conservation Area
5 Longcroft Lane, Welwyn Garden City, AL8 6EB
Received 29 Jan 2016
Decided - GrantedW6/2014/1650/TE
Fell Pine tree and removal of one branch from Conifer tree
8 Ashley Close, Welwyn Garden City, AL8 7LH
Received 21 Jul 2014
Decided - Granted6/2022/0619/ADV
Installation of: 1 x illuminated aluminium fascia sign 1 x illuminated aluminium projecting sign
80-84 Town Centre Hatfield AL10 0JW
Received 16 Mar 2022
Decided - GrantedN6/2004/0423/FP
WIDENING OF EXISTING CROSSOVER
60 Brocket Road Welwyn Garden City AL8 7TU
Received 19 Mar 2004
Decided - GrantedS6/2014/1589/LUP
Certificate of lawfulness for loft conversion
24 Great North Road Brookmans Park Hatfield AL9 6NF
Received 14 Jul 2014
Decided - Granted6/2026/1558/PN8
Prior approval for the erection of a single storey rear extension measuring 5m in depth, 3m in height and 3m to the eaves
50 Heron Way Hatfield AL10 8QX
Received 8 Sept 2026
Decided - Granted6/2022/0188/HOUSE
Erection of two storey side and single storey front & rear extension
6 Holwell Hyde Welwyn Garden City AL7 3DJ
Received 27 Jan 2022
Decided - Granted6/2020/0758/HOUSE
Partial garage conversion and alterations to fenestration
3 Selwyn Avenue Hatfield AL10 9NR
Received 20 Mar 2020
Decided - Refused6/2025/1710/LAWE
Certificate of lawfulness for the existing use of HMO
51 Goldings Crescent Hatfield AL10 8UB
Received 11 Aug 2025
Decided - Granted6/2024/1858/EM
Removal of dying hedgerow and change of hardstanding to form a driveway (retrospective)
5 Lady Grove Welwyn Garden City AL7 4DS
Received 27 Sept 2024
Decided6/2023/2541/TC
To remove 1x Ash and 2x Sycamore trees behind nos 12 and 14. The ash roots, right beside the garages, are breaking the brick wall that holds the raised ground. The sycamore trees become far too big and tower over no. 14
Parkside Welwyn AL6 9DQ
Received 21 Dec 2023
Decided - Refused6/2021/0616/LAWP
Certificate of lawfulness for the erection of a rear dormer, hip to gable roof and insertion of rooflights to facilitate a loft conversion. Chimney raised in height to provide sufficient clearance from the new dormer
6 Firway Close Welwyn AL6 0RE
Received 25 Feb 2021
Decided - Granted6/2023/0628/EMT
T1 Ash Prune 30% reduction
14 Dayemead Welwyn Garden City AL7 4RX
Received 21 Mar 2023
Decided - GrantedC6/1988/1205/FP
Single storey side and rear extension
9 Little Youngs, Welwyn Garden City, AL8 6SL
Received 1 Jan 1988

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