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

40,297Searchable applications

283Recorded as pending

86%Approval rate · 33,821 approved or refused records

4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 10 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2020/1722/EM
Replacement windows and doors
104 Mount Way Welwyn Garden City AL7 4LB
Received 14 Jul 2020
Decided - GrantedN6/2005/1443/FP
ERECTION OF A SINGLE STOREY REAR ORANGERY
42 Valley Road Welwyn Garden City AL8 7DN
Received 21 Nov 2005
Under Consultation6/2026/1530/COND
Submission of details pursuant to Condition 2 (hard and soft landscape), Condition 4 (cycle storage), Condition 5 (refuse and recycling storage) & Condition 6 (sustainability statement) on planning permission 6/2025/0393/FULL
24 Thistle Grove Welwyn Garden City AL7 4AN
Received 2 Sept 2026
Decided - GrantedN6/2006/0112/FP
ERECTION OF SINGLE STOREY SUN LOUNGE EXTENSION
The Old Stables Digswell Lane Welwyn AL6 0SP
Received 25 Jan 2006
Decided6/2020/2586/EIA
Request for a Scoping Opinion at the South Side of the Former Shredded Wheat Factory, Bridge Road, WGC.
Former Shredded Wheat Factory Bridge Road Welwyn Garden City AL8 6UN
Received 2 Oct 2020
Decided - GrantedN6/2014/0459/DS
Discharge of condition 3 (materials) of planning permission N6/2013/1677/FP
Oaklands College, The Campus, Welwyn Garden City, AL8 6AH
Received 28 Feb 2014
Decided - Granted6/2022/1515/HOUSE
Erection of single storey front, side and rear extensions and installation of new fenestration with change to materials
3 Tanglewood Welwyn AL6 0RU
Received 29 Jun 2022
Decided - Granted6/2019/3221/LB
Installation of horizontal featheredged boarding and alterations to first floor level window and removal of conservatory.
Hyde Cottage 16-18 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE
Received 23 Dec 2019
Decided - Granted6/2023/1432/EMT
T1-London Plane-Crown reduce all round by 3-4 metres to maintain size and shape. T2-Lime-Crown reduce all round by 2-3 metres to maintain size and shape.
Churchfield House Guessens Road Welwyn Garden City AL8 6RJ
Received 10 Jul 2023
Decided - GrantedN6/2013/2614/FP
Garage conversion to habitable accommodation
9 Mitchell Close, Welwyn Garden City, AL7 2NH
Received 10 Dec 2013
Decided - GrantedW6/2007/1178/EM
ERECTION OF SINGLE STOREY REAR EXTENSION, BLOCKING UP OF REAR DOOR & ALTERATIONS TO WINDOWS IN SIDE ELEVATION.
13 Brockett Close Welwyn Garden City AL8 7BN
Received 6 Aug 2007
Decided - Refused6/2022/1620/PN11
Prior approval for conversion of vacant offices to residential use
31A Howardsgate Welwyn Garden City AL8 6AP
Received 8 Jul 2022
Decided - Granted6/2025/1852/TPO
Scots pine x2 on left hand boundary - reduction of 3-4 meters off the over-extended branches and height enhancing the shape TPO 394
128 Moffats Lane Brookmans Park AL9 7RW
Received 1 Sept 2025
Decided - Granted6/2016/1495/HOUSE
Erection of single storey front extension
5 Maryland, Hatfield, AL10 8DY
Received 25 Jul 2016
Decided - Granted6/2018/0007/VAR
Variation of condition 1 (matching materials) on planning permission 6/2017/1423/HOUSE
32 Carleton Rise Welwyn AL6 9RF
Received 2 Jan 2018
Decided - GrantedN6/2009/1729/LB
ERECTION OF SATELLITE DISH
THE COTTAGES, 22-24 LEMSFORD VILLAGE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7TN
Received 10 Aug 2009
Decided6/2021/0165/TC
Oak Tree (T1) - reduction by 30%.
8 Hillside Welwyn Garden City AL7 4PZ
Received 20 Jan 2021
Decided - GrantedN6/2007/0699/FP
ERECTION OF A FIRST FLOOR REAR EXTENSION
23 Sheepcote Welwyn Garden City AL7 4QA
Received 4 May 2007
Decided - Granted6/2023/0208/PN8
Prior approval for the erection a single storey rear extension measuring 8 metres in depth, 3.34 metres in height and 3.34 to the eaves
The Cherries 43 Kentish Lane AL9 6NG
Received 27 Jan 2023
Decided - Granted6/2015/2470/HOUSE
Erection of two storey rear extension
97 Handside Lane, Welwyn Garden City, AL8 6SP
Received 15 Dec 2015
Decided - Granted6/2021/2334/TPO
Triple Stem Hornbeam - reduce and thin crown by 20-25%.
12 Bluebells Welwyn AL6 0XD
Received 6 Aug 2021
Decided - Granted6/2023/0266/COND
Submission of details pursuant to condition 1 (crown roof), on planning permission 6/2022/1342/HOUSE
55 Holloways Lane Welham Green Hatfield AL9 7NR
Received 3 Feb 2023
Decided - Granted6/2018/3176/EM
Crown reduction of 1 x Robina tree (T1) by 3m
49 Brockswood Lane Welwyn Garden City AL8 7BU
Received 13 Dec 2018
Decided - RefusedS6/2004/1427/FP
DEMOLITION OF EXISTING GARAGE AND ERECTION OF SINGLE STOREY SIDE AND REAR EXTENSION, NEW BOUNDARY GATES WITH ENTRANCE AND EXIT.
CARBONE HOUSE, CARBONE HILL, NORTHAW, POTTERS BAR, HERTFORDSHIRE, EN6 4PL
Received 27 Sept 2004

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