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

24,273Searchable applications

313Recorded as pending

86%Approval rate · 19,881 approved or refused records

2,760Refused applications

17,121 approved · 2,760 refused · 1,267 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Dismissed6/2022/1619/HOUSE
Erection of ancillary annex following demolition of existing garage
123 Tolmers Road Cuffley Potters Bar EN6 4JW
Received 8 Jul 2022
Decided - Granted6/2020/2149/EMT
Fell 1 x Damson to ground level
24 Nutfield Welwyn Garden City AL7 1UL
Received 24 Aug 2020
Decided - Granted6/2022/0411/EM
Erection of a half height 3 panel fence in front garden between 36 Howicks Green and 34 Howicks Green
36 Howicks Green Welwyn Garden City AL7 4RH
Received 22 Feb 2022
Decided - Refused6/2021/1209/VAR
Variation of condition 5 (drawing numbers), on planning permission 6/2020/2272/HOUSE
32 Moffats Lane Hatfield AL9 7RU
Received 14 Apr 2021
Decided - Granted6/2023/2484/EM
Retrospective consent for the formation of hardstanding following the removal of a single track drive and raised brick standing and steps
16 Gooseacre Welwyn Garden City AL7 4NB
Received 12 Dec 2023
Decided - Granted6/2024/1431/EM
Installation of driveway
24 The Croft Welwyn Garden City AL7 4JY
Received 29 Jul 2024
Decided - Granted6/2018/1854/EM
Prune T1x Hawthorne by 2cm and reduce crown height by 4-5meters
9 Brockett Close Welwyn Garden City AL8 7BN
Received 16 Jul 2018
Decided6/2026/0443/PN29
Change of use of offices to 3 x 2 bedroom flats
17-17a Mill Lane Welwyn AL6 9EU
Received 11 Mar 2026
Decided6/2020/2916/TC
Ash - fell because the base of the tree is rotten and it is likely to fall down and is dangerous. See photo attached to application ("LM Dangerous Tree Photo")
Lower Meadow Hill Farm Lane Welwyn AL6 9BW
Received 9 Nov 2020
Decided - Granted6/2019/1706/MAJ
Erection of warehouse (Class B8) on stilts above existing staff car park, including bridge connection to existing office building.
Land to the Rear of Pear Building Shire Park Kestrel Way Welwyn Garden City AL7 1GA
Received 11 Jul 2019
Decided - Refused6/2021/0878/LAWP
Certificate of lawfulness for the erection of a single storey outbuilding in the rear garden to form a gymnasium and play room
1 Northaw Road East Cuffley Potters Bar EN6 4LU
Received 18 Mar 2021
Decided - Granted6/2017/0736/EM
Replacement of existing white double glazed front door with duck egg blue composite door incorporating fusion art glass, and replacement of existing metal up and over white garage door with white aluminium roller shutter door
3 The Jinnings Welwyn Garden City AL7 4QB
Received 10 Apr 2017
Decided - Granted6/2020/3009/COND
Submission of details pursuant to condition 7 (external materials) on planning permission 6/2019/1851/VAR
The Holdings Cole Green Lane Welwyn Garden City AL7 4AL
Received 16 Nov 2020
Decided - Granted6/2022/0481/HOUSE
Erection of a single storey rear extension
6 Twysdens Terrace Dellsome Lane Welham Green Hatfield Hertfordshire AL9 7DJ
Received 1 Mar 2022
Appeal Decided - Dismissed6/2020/1359/HOUSE
Erection of a two storey side and rear extension with canopy roof and single storey rear extension
44 Heron Way Hatfield AL10 8QX
Received 15 Jun 2020
Decided - Granted6/2017/0188/LAWP
Certificate of lawfulness for the conversion of existing attached garage into a utility area, as well as addition of 3 roof lights to roof.
17 Carbone Hill Northaw Potters Bar EN6 4PJ
Received 1 Feb 2017
Decided - Granted6/2016/2275/HOUSE
Erection of Orangery to the rear of the property
18 Great Break Welwyn Garden City AL7 3EZ
Received 28 Oct 2016
Decided - Granted6/2017/1468/TPO
Pollard two Sweet Chestnut trees covered by TPO 53 (1980)
5 Bluebells Welwyn AL6 0XD
Received 4 Jul 2017
Decided - Granted6/2021/0503/HOUSE
Extension to the rear, front porch extension, rear dormers and internal alterations
30 Tolmers Avenue Cuffley Potters Bar EN6 4QA
Received 16 Feb 2021
Decided - Granted6/2021/0184/COND
Submission of details pursuant to conditions 1 (surface water drainage), 11 (surface water drainage) and 12 (street management) on planning permission 6/2020/0712/VAR
Ratcliff Tail Lifts Ltd site, Bessemer Road Welwyn Garden City AL7 1ET
Received 19 Jan 2021
Decided - Granted6/2016/0605/EM
Replacement of existing garden shed and alterations to the frontage including an enlargement of the existing hard standing
95 Woodhall Lane, Welwyn Garden City, AL7 3TH
Received 29 Mar 2016
Decided6/2025/2171/TC
4 x Lime trees to re pollard. Reduce height of left hand side stem by approximately 1m to match height of rest. 2 x Cherry plums to reduce by approximately 1.5m in height and width (back to previous). 1 x Oak to reduce back to previous. Approx reduce by around 1.2m height & 1m width. 1 x Eucalyptus to fell.
12 Guessens Road Welwyn Garden City AL8 6QR
Received 13 Oct 2025
Decided - Granted6/2019/1515/HOUSE
Erection of a single storey rear extension
9 Halifax Way Welwyn Garden City AL7 2QH
Received 20 Jun 2019
Decided - Granted6/2017/2944/COND
Submission of details pursuant to condition 1 (materials samples), 8 (hard and soft landscaping details) and 11 (cycle parking provision) on planning permission 6/2017/1028/MAJ, dated 24/11/2017
20 Black Fan Road Welwyn Garden City AL7 1QA
Received 20 Dec 2017

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