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

36,767Searchable applications

335Recorded as pending

86%Approval rate · 30,628 approved or refused records

4,210Refused applications

26,418 approved · 4,210 refused · 1,976 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 25 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/2726/MAJ
Erection of 4 industrial/commercial buildings within use class B8 with associated landscaping, access and infrastructure works
The Holdings, Cole Green Lane, Welwyn Garden City AL7 4AL
Received 17 Oct 2018
Decided - Granted6/2021/3392/EM
Erection of 1 x 3 storey building comprising of 14 x dwellings with associated ancillary spaces, landscaping work, car and cycle parking, and alterations to existing access, involving demolition of existing 8 unit flat building
Ludwick Green Ludwick Way Welwyn Garden City AL7 3PL
Received 2 Dec 2021
Decided - Granted6/2022/2691/LB
Works to include: Repoint front, rear and South side of property using a like for like lime mortar mix, remove existing sand a cement render to North side, remove existing sand and cement plinth and replace with appropriate (for the property) lime render plinth. Remove existing sand and cement render strip on the South end of the fascia of the property and restore existing brickwork, remove sand and cement render from the two chimneys visible from the road and replace with appropriate lime render. Remove sand and cement render from parapet and replace with lime render and repair lead box gutter and repairs to roof at rear of property on 2 story elevation– slipped tiles to be refitted.
56 Bell Lane Hatfield AL9 7AY
Received 28 Nov 2022
Decided - Granted6/2017/1673/LAWP
Certificate of lawfulness for the erection of detached single storey garden building.
13 The Gardens Brookmans Park Hatfield AL9 7UL
Received 28 Jul 2017
Decided - Granted6/2021/3396/HOUSE
Erection of single storey front and rear extensions.
75 Woods Avenue Hatfield AL10 8QF
Received 3 Dec 2021
Decided - Granted6/2025/0164/HOUSE
Erection of single storey rear extension, new enlarged roof structure incorporating 3No. front dormers and 1No. rear dormer with no increase in ridge height, formation of first floor rooms and associated alterations
37 The Meadway Cuffley Potters Bar EN6 4ET
Received 31 Jan 2025
Decided - Refused6/2016/0245/EM
Replacement of very poor conditioned grass area in front of property with quality artificial grass and area involved 15 metres.
107 Parkway, Welwyn Garden City, AL8 6JD
Received 3 Feb 2016
Decided - Refused6/2023/0200/LAWP
Certificate of lawfulness for the erection of a porch
9 South Drive Cuffley Potters Bar EN6 4HP
Received 26 Jan 2023
Decided - Granted6/2024/1187/HOUSE
Erection of a single storey rear extension following demolition of existing conservatory and installation of rear dormer and side facing roof light to facilitate loft conversion
8 Layton Street Welwyn Garden City AL7 4FF
Received 26 Jun 2024
Decided - Granted6/2016/2378/EM
Retention of existing conservatory
49 Thistle Grove Welwyn Garden City AL7 4AD
Received 10 Nov 2016
Decided - Granted6/2020/3446/EM
Formation of hardstanding
38 Kirklands Welwyn Garden City AL8 7RD
Received 23 Dec 2020
Decided - Granted6/2024/2447/EM
Enhance existing hardstanding, doorstep and side access
20 West Mead Welwyn Garden City AL7 4SA
Received 31 Dec 2024
Decided - Granted6/2019/1507/EM
Replacement of existing conservatory and the removal of the balcony
3 Russellcroft Road Welwyn Garden City AL8 6QN
Received 20 Jun 2019
Decided - Granted6/2026/0893/HOUSE
Erection of two storey front extension with dormers, alteration to openings
Windy Ridge 40 Great North Road Welwyn AL6 0PX
Received 20 May 2026
Decided - Granted6/2016/0812/EM
Reduce Conifer tree by 25% & Holly tree by 30%
25 Attimore Road, Welwyn Garden City, AL8 6LQ
Received 28 Apr 2016
Decided - Granted6/2021/1133/HOUSE
Erection of a single storey front porch infill extension and garage conversion, single storey rear extension and insertion of new window to existing front elevation
6 Robin Mead Welwyn Garden City AL7 1PP
Received 7 Apr 2021
Decided - Granted6/2026/0934/HOUSE
Erection of a single storey front porch extension
2 Lemsford Village Lemsford Welwyn Garden City AL8 7TN
Received 28 May 2026
Decided6/2018/1491/TPO
Fell 1 x Lawson Cypress tree - conservation area
7 Attimore Close Welwyn Garden City AL8 6LN
Received 4 Jun 2018
Decided - GrantedS6/2015/1182/LUE
Certificate of lawfulness for existing outbuilding
Woodhill Farm Kentish Lane Brookmans Park Hatfield AL9 6JY
Received 3 Jun 2015
Decided - Withdrawn6/2023/0250/EM
Erection of a single storey side extension with front steps
95 Mill Green Road Welwyn Garden City AL7 3XA
Received 1 Feb 2023
Decided - Granted6/2019/0127/EM
Erection of single storey side extension with alterations to openings
24 High Oaks Road Welwyn Garden City AL8 7BH
Received 22 Jan 2019
Decided - Granted6/2017/0171/HOUSE
Erection of single storey rear extension following demolition of existing including conversion of existing garage
41 Mymms Drive Brookmans Park Hatfield AL9 7AE
Received 31 Jan 2017
Decided - GrantedS6/2008/0591/FP
DEMOLITION OF EXISTING HOUSE AND ERECTION OF REPLACEMENT DWELLING (REVISED SCHEME)
24 THE RIDGEWAY, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4AR
Received 18 Mar 2008
Decided - Granted6/2020/1220/EM
Installation of garden shed to rear and replacement of existing rear garden shed.
256 Heronswood Road Welwyn Garden City AL7 3JQ
Received 1 Jun 2020

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

View all applications

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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