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

40,233Searchable applications

309Recorded as pending

86%Approval rate · 33,741 approved or refused records

4,811Refused applications

28,930 approved · 4,811 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - WithdrawnN6/2004/1563/FP
ERECTION OF NEW FRONT FENCE AND ENTRANCE GATES
3 Harmer Dell Welwyn AL6 0BE
Received 19 Oct 2004
Decided6/2021/2888/TC
2 x Ash to fell to ground level. Neighbours are concerned they are having a negative affect on their retaining wall in their garden. One Ash is heavily Ivy Clad and the other is an old regrown coppice.
3 The Orchard Welwyn Garden City AL8 7PL
Received 8 Oct 2021
Decided - GrantedS6/2014/1443/FP
Erection of new public house and associated works
Land off, Comet Way, Hatfield, AL10 0XY
Received 27 Jun 2014
Decided - Granted6/2017/1925/HOUSE
Erection of a part two storey side and rear extension including garage conversion to habitable space
9B Brookside Hatfield AL10 9RR
Received 29 Aug 2017
Decided - Granted6/2024/0604/EM
Replacement garage doors like for like
32 Barleycroft Road Welwyn Garden City AL8 6JU
Received 27 Mar 2024
Decided - Granted6/2020/0150/HOUSE
Erection of a part single, part two storey rear extension, alterations to openings and demolition of conservatory
46 Poppyfields Welwyn Garden City AL7 2HJ
Received 22 Jan 2020
Decided - Granted6/2016/1847/TPO
Removal of Silver Birch tree - Conservation Area
13 Beehive Lane, Welwyn Garden City, AL7 4BB
Received 9 Sept 2016
Decided - Granted6/2021/3419/PN8
Prior approval for single rear extension 3.50m in depth, 3.32m in height and 2.50m to the eaves
36 Cranfield Crescent Cuffley Potters Bar EN6 4EA
Received 7 Dec 2021
Decided - Split6/2023/2182/COND
Submission of details pursuant to condition 6 (Theobalds Road Route) on planning permission 6/2023/1352/VAR
Land to the north east of King George V Playing Fields Northaw Road East Cuffley EN6 4RD
Received 25 Oct 2023
Decided - RefusedN6/2014/2274/FP
Erection of first floor side extension and part single and part two storey rear extensions
28 Great Dell, Welwyn Garden City, AL8 7HY
Received 16 Oct 2014
Decided - Granted6/2016/0090/TPO
Removal of Arm from twin stemmed Leylandii tree plus reduce by up to 12ft in height - Conservation Area
59 Marsden Road, Welwyn Garden City, AL8 6YH
Received 19 Jan 2016
Decided - Granted6/2026/1397/EM
Installation of solar energy system of 14 solar panels and removal of rear chimney
44 Attimore Road Welwyn Garden City AL8 6LP
Received 7 Aug 2026
Decided - GrantedN6/2015/0607/TC
Fell Apple tree and Blue Spruce tree
23 Dellcott Close, Welwyn Garden City, AL8 7BB
Received 19 Mar 2015
Decided - RefusedS6/2009/1392/LU
CERTIFICATE OF LAWFULNESS FOR PROPOSED SINGLE STOREY SIDE AND REAR EXTENSIONS
THE OLD STABLES, WOOSIDE PLACE, WILDHILL ROAD, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 6DN
Received 3 Jul 2009
Decided - Granted6/2023/0106/EMT
T3 Oak to reduce selective limbs by approximately 3m in height, reduce branches over sailing lawn by approximately 2m in width (tree located in scholars mews grass verge opposite number 16/17)
19 Scholars Mews Welwyn Garden City AL8 7JQ
Received 16 Jan 2023
Decided - Granted6/2021/0663/EMH
Erection of single storey rear and first floor rear extensions, reroofing house, erection of garden room with 4 x solar panels, replacement of car port and side alley roofs, insertion of satellite dish, replacement of all windows and doors and removal of Fir tree and planting of replacement Rowan tree
4 Handside Green Welwyn Garden City AL8 6SQ
Received 1 Mar 2021
Decided - GrantedN6/2014/1096/DS
Approval of details reserved by condition 3 (replacement windows), 4 (materials) and 5 (construction method statement) of planning permission N6/2013/2706/LB
56 Hertford Road Digswell Welwyn AL6 0BX
Received 16 May 2014
Decided - Withdrawn6/2022/1346/LAWP
Certificate of lawfulness for the construction of detached outbuilding
62 New Park Road Newgate Street Hertford Hertfordshire SG13 8RF
Received 10 Jun 2022
Decided - Refused6/2018/1603/HOUSE
Erection of a front garage extension with pitched roof
78 Bell Lane Brookmans Park Hatfield AL9 7AY
Received 15 Jun 2018
Decided - Granted6/2020/0401/COND
Submission of details pursuant to condition 3 (details of materials) on planning permission 6/2018/2833/FULL (APP/C1950/W/19/3231961)
111 Wheatley Road Welwyn Garden City AL7 3LD
Received 13 Feb 2020
Decided - Granted6/2016/2619/COND
Approval of details reserved by condition 3 (Site Access Plans and Drawings), condition 4 (Logistics Plan), condition 9 (Contamination Remediation Scheme) and condition 10 (Final Design of Drainage Scheme) on planning permission 6/2016/0192/MAJ
Land accessed from Green Close Brookmans Park Hatfield AL9 7ST
Received 9 Dec 2016
Decided - GrantedS6/2004/0320/FP
EXTENSION TO EXISTING REAR CONSERVATORY
152 Brookside Crescent Cuffley Potters Bar EN6 4QL
Received 4 Mar 2004
Decided - GrantedN6/2008/1188/FP
ERECTION OF SINGLE STOREY REAR EXTENSION & OUT BUILDING
158 BOUNDARY LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4DF
Received 10 Jul 2008
Decided - GrantedN6/2015/1328/LUP
Certificate of lawfulness for proposed installation of rear facing dormer window and hip to gable to facilitate loft conversion
14 Brocket Road Welwyn Garden City AL8 7TY
Received 22 Jun 2015

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