England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates

29,706Searchable applications

307Recorded as pending

87%Approval rate · 24,671 approved or refused records

3,287Refused applications

21,384 approved · 3,287 refused · 1,582 withdrawn. Received dates in our records: 15 Jun 1948 to 13 Oct 2026. Most recent record check: 18 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2017/0939/EM
Erection of a single storey rear extension with 2 rooflights and partial infill to front window
229 Daniells Welwyn Garden City AL8 7JT
Received 4 May 2017
Decided - Granted6/2026/1168/COND
Submission of details pursuant to Condition 25 (SuDS) on planning permission 6/2023/0759/VAR
Hill-Top Neighbourhood Centre High View Hatfield AL10 8HZ
Received 6 Jul 2026
Decided - RefusedN6/2014/2534/FP
Erection of single storey rear extension and alterations to roof, including four rooflights and part extension to roof pitch
10 Raymonds Close, Welwyn Garden City, AL7 4TH
Received 19 Nov 2014
Decided - GrantedN6/2014/2407/LUE
Certificate of lawfulness for existing use as hardstanding for parking
The Grange 3 Codicote Road Welwyn AL6 9LY
Received 31 Oct 2014
Decided - GrantedN6/2015/0420/FP
Erection of two storey side extension and front porch, formation of hardstanding and retention of 1.8m close boarded fencing along southern boundary
19 Norman Road Welwyn AL6 9JW
Received 2 Mar 2015
Decided - Withdrawn6/2018/1767/LB
Installation of door and surround
Shaws Corner Bibbs Hall Lane Welwyn AL6 9BX
Received 5 Jul 2018
Decided - Granted6/2016/0467/VAR
Variation of condition 2 (approved plans) on planning permission S6/2012/1247/FP
68 Mymms Drive, Brookmans Park, Hatfield, AL9 7AD
Received 21 Mar 2016
Decided - Granted6/2019/0753/HOUSE
Erection of part single part two storey rear extension
24 Manor Road Hatfield AL10 9LJ
Received 29 Mar 2019
Decided6/2024/1947/TC
Hedge row in the back garden to remove
58 Lemsford Lane Welwyn Garden City AL8 6YJ
Received 10 Oct 2024
Decided - Granted6/2020/1110/HOUSE
The replacement of the existing white uPVC windows and doors with new amended design.
104 Mount Way Welwyn Garden City AL7 4LB
Received 18 May 2020
Decided - Refused6/2017/2506/HOUSE
Demolition of the existing conservatory. Erection of a part two, part single storey rear extension and first floor side extension. Conversion of garage into habitable accommodation. Insertion of ground floor side window and door.
22 Birchall Wood Welwyn Garden City AL7 2HL
Received 30 Oct 2017
Decided - Granted6/2025/2385/HOUSE
Erection of single storey rear extension, rooflights to existing roof
29 Brookside Crescent Cuffley Potters Bar EN6 4QW
Received 13 Nov 2025
Decided - Granted6/2016/2124/FULL
Erection of single and double storey rear extensions following demolition of existing accommodation
64 Harmer Green Lane Digswell Welwyn AL6 0AW
Received 12 Oct 2016
Decided - Granted6/2019/1714/EM
Reduce 1x Oak tree and 1x Ash tree (front) by 40% crown reduction. Reduce 2x Hornbeam and 1x Hazelnut tree (rear) by 60% crown reduction.
8 The Glade Welwyn Garden City AL8 7LG
Received 11 Jul 2019
Decided - Granted6/2019/2058/FULL
Retention of building following its part demolition
Beavers Lodge Farm, Tylers Causeway, Newgate Street, Hertford, SG13 8QN
Received 19 Aug 2019
Decided - Withdrawn6/2017/2408/LB
Replace existing boiler and associated equipment, hot water pipework, cold water pipework and heating system.
Templewood Primary School Pentley Park Welwyn Garden City AL8 7SD
Received 19 Oct 2017
Decided - Granted6/2017/1311/HOUSE
Erection of rear conservatory, following demolition of existing
10 Birchwood Close Hatfield AL10 0PP
Received 15 Jun 2017
Decided - Granted6/2016/0789/EM
Improvements and extension of existing driveway
63 Valley Road, Welwyn Garden City, AL8 7DH
Received 25 Apr 2016
Decided - GrantedS6/2015/1506/TC
Crown thin Hazel tree by 25% and removal of Apple and Prunus tree
16 Northaw Road West, Potters Bar, EN6 4NR
Received 16 Jul 2015
Decided - Granted6/2025/2151/EM
Project 1: Installation of a new driveway and EV charging Project 2: Replacement of current doors on the rear of the property to bifold Project 3: Addition of Verada Glass room to the rear of the property
168 Boundary Lane Welwyn Garden City AL7 4DF
Received 8 Oct 2025
Decided - Granted6/2018/2599/LAWP
Certificate of lawfulness for installation of rear dormer and 2x front rooflights to facilitate loft conversion
9 Hawbush Rise Welwyn AL6 9PZ
Received 10 Oct 2018
Decided - GrantedN6/2014/0685/NM
Non material amendment following approval of planning permission N6/2013/1856/FP - Amendments to ground and second floor layouts including repositioned roof lights and parapet wall
11 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 31 Mar 2014
Decided - Granted6/2017/0426/EM
1 x Atlas Cedar to reduce height by 3m and width by 2m
8 Turmore Dale Welwyn Garden City AL8 6HS
Received 6 Mar 2017
Decided6/2021/1408/TC
Privet Hedge [H1]: Relocate hedge to centre of boundary between No.40 and No.42 Handside Lane. Remove neglected and dead shrubs so boundary between No.40 and No.42 Handside Lane can be correctly designated.
42 Handside Lane Welwyn Garden City AL8 6SJ
Received 4 May 2021

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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