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

35,983Searchable applications

331Recorded as pending

86%Approval rate · 29,987 approved or refused records

4,083Refused applications

25,904 approved · 4,083 refused · 1,892 withdrawn. Received dates in our records: 29 Apr 1948 to 16 Oct 2026. Most recent record check: 23 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 Counts reflect the last collected status; some records may be out of date.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

Appeal Decided - Dismissed6/2017/2976/HOUSE
Erection of a detached, part single, part two storey, two-bedroom dwelling
6 The Links Welwyn Garden City AL8 7DS
Received 28 Dec 2017
Decided - Granted6/2021/1920/HOUSE
Erection of single storey rear extension, part single storey side extension, and partial conversion of garage.
2 Sheepcote Welwyn Garden City AL7 4QD
Received 24 Jun 2021
Decided - GrantedN6/2015/0374/TP
Lift branches of Beech tree to 7m in height, remove upto four branches of overhanging Hornbeam tree and reduce two Hornbeam trees and three Ash trees by upto 30% covered by TPO 280
15 Oaklands Rise Welwyn AL6 0RN
Received 24 Feb 2015
Decided - Granted6/2015/2260/FULL
Creation of 2no semi detached three bedroom properties following conversion of loft and rear extension of existing detached property.
15 Plough Hill, Cuffley, Potters Bar, EN6 4DN
Received 5 Nov 2015
Decided - Granted6/2025/0366/LAWP
Certificate of lawfulness for the installation of a new revolving door and Disability Discrimination Act compliant automatic swing door to replace the existing sliding entrance doors at the existing Affinity Water Limited (AWL) site
The Hub Tamblin Way Hatfield AL10 9EZ
Received 26 Feb 2025
Decided - Granted6/2026/1137/EMT
1 x Hornbeam to reduce by approximately 2m in both height and width, not exceeding historic pruning points.
20 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 30 Jun 2026
Decided - Granted6/2018/2224/FULL
Erection of 1 x dwelling including 2 x parking spaces following demolition of 12 x garages
Garage site to rear of 10 -12 Little Ganett Welwyn Garden City AL7 3DG
Received 28 Aug 2018
Decided6/2018/0573/TPO
Reduce 1 x Yew tree by 30% and trim sides - conservation area
17 Meadow Green Welwyn Garden City AL8 6SS
Received 27 Feb 2018
Decided - Granted6/2018/1731/HOUSE
Erection of single storey front extension, part single, part two storey rear extension, hip to gable roof alterations and installation of rooflights to facilitate loft conversion to habitable space and alterations to openings
25 Green Lanes Hatfield AL10 9JU
Received 29 Jun 2018
DecidedS6/2009/2529/TP
REMOVAL OF CEDAR TREE COVERED BY TPO T4 (POSSIBLE DDD)
FORMER HOWE DELL SCHOOL, OLD RECTORY DRIVE, HATFIELD, HERTS, AL10 8AD
Received 25 Nov 2009
Decided - Granted6/2022/2228/FULL
Installation of a “private-wire” electricity cable between the Energy Centre, Tewin Road and Colt Technology Services Group Limited, 20 Black Fan Road, Welwyn Garden City, AL7 1QA (Option 3).
20 Black Fan Road Welwyn Garden City AL7 1QA
Received 27 Sept 2022
Decided - Withdrawn6/2024/0995/LAWP
Certificate of lawfulness for a proposed front porch
29 Warren Close Hatfield AL10 0AL
Received 29 May 2024
Decided - Granted6/2023/2077/EMT
To maintain a suitable size for the garden, reduce the following: 1 x Apple - by 2m height and 1.2m width thin canopy by 20% volume 1 x Pear - by 2.5m in height and 1.2m in width 1 x Box elder - by 2m height 1.5m in width
11 The Orchard Welwyn Garden City AL8 7PL
Received 11 Oct 2023
Decided - RefusedN6/2014/0539/FP
Erection of 2x two storey side extensions
7 Densley Close, Welwyn Garden City, AL8 7JX
Received 17 Mar 2014
Decided - GrantedN6/2013/2002/NM
Non material amendment following approval of planning permission N6/2013/1029/FP - Amendment in the location of the antennas on the top left hand platform
Campus West, The Campus, WELWYN GARDEN CITY, AL8 6AJ
Received 26 Sept 2013
Decided - Granted6/2025/1993/EM
Switching of position of window and door in rear study; Switching of position of window and door in utility room; Master bedroom south facing window x1 - opacified glass in same frame style/ materials/ size to adjacent window, Discreet conservation style sun tunnels x2 on roof; Solar panels on south side of roof; Replacement of 2x garden sheds with small garden room with garden storage area
15 Guessens Road Welwyn Garden City AL8 6QL
Received 16 Sept 2025
Decided - Granted6/2021/0857/EMH
Erection of 9ft x 9ft summerhouse in rear garden and low level 6ft x 3ft bike shed to the side following the removal of current 8ft x 6ft shed.
77 The Vineyard Welwyn Garden City AL8 7PY
Received 11 Mar 2021
Decided - Refused6/2019/0253/EM
Erection of front porch
82 Lemsford Lane Welwyn Garden City AL8 6YL
Received 4 Feb 2019
Appeal Decided - Dismissed6/2024/0657/HOUSE
Partial removal of previous boundary wall with installation of new boundary fence and various tree works
73 Knightsfield Welwyn Garden City AL8 7JE
Received 8 Apr 2024
Decided - Granted6/2021/2232/HOUSE
Erection of a single storey rear extension
48 Cecil Crescent Hatfield AL10 0HG
Received 26 Jul 2021
Decided - Granted6/2020/0836/HOUSE
Erection of a single storey rear extension
129 Bramble Road Hatfield AL10 9SD
Received 6 Apr 2020
Decided - Granted6/2017/1979/EM
Removal of Beech tree
16 Russellcroft Road Welwyn Garden City AL8 6QT
Received 4 Sept 2017
Decided - Granted6/2023/1340/HOUSE
Erection of single storey rear infill extension
4 Hook Lane Northaw Potters Bar Hertfordshire EN6 4DA
Received 29 Jun 2023
Decided - Granted6/2019/2168/TPO
Fell 1 x Pine (Replace) TPO 775 (2018) G3
54 Harmer Green Lane Digswell Welwyn AL6 0AW
Received 2 Sept 2019

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