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

40,288Searchable applications

321Recorded as pending

86%Approval rate · 33,780 approved or refused records

4,816Refused applications

28,964 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedW6/2014/0858/TE
Reduce Oak tree crown by 25%
22 Woodland Rise, Welwyn Garden City, AL8 7LF
Received 14 Apr 2014
Decided - GrantedS6/2014/2713/FP
Erection of a single storey rear extension
65 Hill Rise, Cuffley, Potters Bar, EN6 4RX
Received 19 Dec 2014
Decided6/2026/0750/TC
1 x Plum to fell.
33 Attimore Road Welwyn Garden City AL8 6LQ
Received 28 Apr 2026
Decided - Granted6/2026/1467/LB
Replacement like-for-like front door and one window
3 Holly Hall Court Church Street Welwyn AL6 9LH
Received 19 Aug 2026
Decided - Granted6/2020/1331/EM
Installation of three air source heat pumps in the rear garden
38 Parkway Welwyn Garden City AL8 6HQ
Received 11 Jun 2020
Decided - Refused6/2020/0799/HOUSE
Erection of two storey side extension, part single/part two storey rear extension and front porch
2D Plough Hill, Cuffley, Potters Bar, EN6 4DR
Received 30 Mar 2020
Decided6/2020/1941/TC
Oak (T1) - Fell
12 Mandeville Rise Welwyn Garden City AL8 7JU
Received 5 Aug 2020
Decided - Granted6/2016/2690/MAJ
Erection of a 5-storey building to provide 30 x 2 bedroom residential flats
Woolworth House Bessemer Road Welwyn Garden City AL7 1GR
Received 20 Dec 2016
Decided - GrantedN6/2006/0166/FP
PROPOSED EXTERNAL ALTERATIONS
32-79 GUINNESS HOUSE, LITTLE HARDINGS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2EN
Received 7 Feb 2006
Decided - Granted6/2016/2005/HOUSE
Erection of first floor and part two storey side extension
29 Sheepcote, Welwyn Garden City, AL7 4QA
Received 28 Sept 2016
Decided - Granted6/2015/2384/TPO
Dead and Dangerous tree application - Removal of Cherry Plum tree - Conservation Area.
19 Brockswood Lane, Welwyn Garden City, AL8 7BE
Received 24 Nov 2015
Decided - RefusedS6/2004/0460/FP
CONSTRUCTION OF A 5 BED HOUSE TO REPLACE EXISTING DWELLING.
Linden Lodge Bulls Lane Hatfield AL9 7BB
Received 23 Mar 2004
Decided - Refused6/2017/0923/HOUSE
Erection of a detached garage
3 Mill Green Cottages Mill Green Bush Hall Lane Hatfield AL9 5PB
Received 2 May 2017
Decided - GrantedS6/2014/2766/LUE
Certificate of Lawfulness for internal alterations to accomodate a garage conversion and infill of garage door and replace with window and door
19 Meadow Croft Hatfield AL10 0SG
Received 23 Dec 2014
Decided - GrantedW6/2004/0497/EM
EXTENSION TO EXISTING DRIVEWAY
52 Oakdale, Welwyn Garden City, AL8 7QZ
Received 30 Mar 2004
Decided - Granted6/2018/2852/HOUSE
Erection of a single storey rear extension and replacement of side door with window
38 Sloansway Welwyn Garden City AL7 1ND
Received 6 Nov 2018
Decided - Refused6/2018/0020/HOUSE
Erection of a two storey rear extension and conversion of garage into a habitable room
16 Daffodil Close Hatfield AL10 9FF
Received 3 Jan 2018
Decided - GrantedS6/2007/0381/FP
ERECTION OF DOUBLE STOREY SIDE EXTENSION
24 The Sidings Hatfield AL10 9SR
Received 7 Mar 2007
Decided - Granted6/2015/1609/EM
Replacement front garden wall
19 Coneydale Welwyn Garden City AL8 7RX
Received 28 Jul 2015
Decided - Granted6/2023/1210/HOUSE
Erection of single storey rear extension with insertion of rooflight and roof lantern, following demolition of conservatory, garage conversion with raising of front parapet, rooflight and replacement roof
7 Barleycroft Road Welwyn Garden City AL8 6JX
Received 7 Jun 2023
Decided - GrantedW6/2014/0011/EM
Erection of two storey side extension
58 Crossway, Welwyn Garden City, AL8 7EE
Received 6 Jan 2014
Decided - Granted6/2023/0835/COND
Submission of details pursuant to the discharge of condition 4 (Perimeter Walls) on planning permission 6/2022/1476/HOUSE approved by Appeal APP/C1950/D/22/3306336
11 Aldock Welwyn Garden City AL7 4QF
Received 19 Apr 2023
Decided - RefusedS6/2014/1659/TP
Removal of numerous trees, within an 11 metre radius of the garage, covered by TPO166 W1
Empty Plot Adjacent to, 48 The Ridgeway, Cuffley, Potters Bar, EN6 4BA
Received 11 Jul 2014
Appeal Decided - DismissedN6/2007/0364/MA
ERECTION OF 61 BED RESIDENTIAL CARE HOME FOR THE ELDERLY.
Monread Lodge 38 London Road Woolmer Green Knebworth SG3 6HG
Received 5 Mar 2007

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