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

322Recorded as pending

86%Approval rate · 33,788 approved or refused records

4,816Refused applications

28,972 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Appeal Decided - AllowedN6/2004/1721/FP
ERECTION OF ONE FLATTED BLOCK COMPRISING OF 10 TWO BEDROOM FLATS WITH ASSOCIATED PARKING AND LANDSCAPING.
Land at 12 & 14 The Avenue Welwyn AL6 0PP
Received 22 Nov 2004
Decided - Granted6/2022/0202/COND
Submission of details pursuant to condition 1 (materials), 2 (crown roof) and 3 (landscaping) on planning application 6/2020/1744/FULL
25 Hill Rise Cuffley Potters Bar EN6 4EH
Received 27 Jan 2022
Decided - RefusedN6/2007/1390/FP
EXTENSION OF EXISTING HARDSTANDING TO INCREASE DRIVEWAY
8 PLOUGHMANS END, WELWYN GARDEN CITY, HERTS, AL7 2JG
Received 18 Sept 2007
Decided - GrantedN6/2004/1518/FP
ERECTION OF A SINGLE STOREY REAR EXTENSION.
93 Salisbury Road Welwyn Garden City AL7 3RY
Received 11 Oct 2004
Decided - Granted6/2024/0947/LAWP
Certificate of lawfulness for the erection of a single storey side/rear extension
104 Birchwood Avenue Hatfield AL10 0PS
Received 21 May 2024
Decided - GrantedS6/2014/2586/MA
Demolition of existing dwelling and erection of new dwelling
Milkwood Farm Dixons Hill Close Welham Green Hatfield AL9 7EF
Received 26 Nov 2014
Decided - Granted6/2026/0495/EM
Erection of a single storey rear extension
27 Blakemere Road Welwyn Garden City AL8 7PQ
Received 17 Mar 2026
Decided - Refused6/2022/2564/COND
Submission of details pursuant to condition 5 (A - Site characterisation, B - Submission of Remediation Scheme, C - Implementation of approved Remediation Scheme, D - Reporting of unexpected contamination and E - Long term monitoring and maintenance) on planning permission 6/2019/1067/MAJ
Hilltop Neighbourhood Centre High View Hatfield AL10 8HZ
Received 9 Nov 2022
Decided - RefusedS6/2006/0474/FP
ERECTION OF A TWO STOREY SIDE AND SINGLE STOREY FRONT EXTENSION
53 Chantry Lane Hatfield AL10 9HW
Received 10 Apr 2006
Decided - Withdrawn6/2022/2257/LB
Erection of a substation, electric vehicle rapid charging hub (consisting of 8 high power chargers) and associated electrical equipment
The Beehive Beehive Lane Welwyn Garden City AL7 4BW
Received 29 Sept 2022
Decided - GrantedS6/2015/0720/AD
Installation of 1no non-illuminated high level sign, 2no illuminated entrance signs, 1no illuminated hanging sign and a pavement sign
Culpitt House, 74 - Town Centre, Hatfield, AL10 0JW
Received 1 Apr 2015
Decided - GrantedN6/2008/1315/TP
REMOVAL OF SWEET CHESTNUT COVERED BY TPO 12
8 Firway Welwyn AL6 0RD
Received 29 Jul 2008
Decided - Granted6/2021/0369/ADV
Installation of 3 x externally illuminated fascia sign, 1 x non-illuminated fascia sign, 1 x signage board
Cedar House Sopers Road Cuffley Potters Bar EN6 4RY
Received 5 Feb 2021
Decided6/2021/2528/TC
Reduce overgrowth on 1 x Beech Hedge back to original hedge height and cut off/prune branches on 1 x Fir tree covered by a conservation area
10 Blakemere Road Welwyn Garden City AL8 7PJ
Received 31 Aug 2021
Decided - WithdrawnN6/2008/0050/FP
ERECTION OF REAR CONSERVATORY
31 AYOT GREEN, AYOT ST PETER, WELWYN, HERTS, AL6 9AB
Received 10 Jan 2008
Decided - Granted6/2020/0406/COND
Submission of details pursuant to condition 1 (construction method statement) 2 (refuse and recycling details) 3 (cycle parking) and 5 (samples of materials) on planning permission 6/2018/1232/FULL
17-19 Howardsgate Welwyn Garden City AL8 6AL
Received 13 Feb 2020
Decided - Granted6/2021/2681/HOUSE
Erection of a rear garden office
1 Peregrine Way Hatfield AL10 9UP
Received 16 Sept 2021
Decided - Granted6/2018/0651/EM
Increase hardsurfacing and variety of planting following reduction in the front hedgerow length
35 Blakemere Road Welwyn Garden City AL8 7PQ
Received 8 Mar 2018
Decided - Granted6/2019/2829/EM
4 x Ash to reduce by around 4m height & 1.5m width. 1 x Hazel to reduce by 3m height. 1 x Sycamore to reduce by around 3m height & 1.5m width. 1 x Portugal Laurel to reduce by 2.5m height & trim side. 3 x Ash to reduce by 4m height & 1.5m width. 1 x Cherry to reduce by 2m height & width 2 x Apple to reduce by 1m.
15 The Old Drive Welwyn Garden City AL8 6TB
Received 8 Nov 2019
Decided - GrantedW6/2013/1589/EM
Retention of hardstanding and reinstatement of hedge
9 Elmwood, Welwyn Garden City, AL8 6LD
Received 23 Jul 2013
Decided - Granted6/2019/0594/COND
Submission of details pursuant to condition 1 (Materials), 2 (Tree Protection Plan), 3 (Window Specification) on planning permission 6/2018/1225/FULL
58 Plough Hill, Cuffley, Potters Bar, EN6 4DS
Received 13 Mar 2019
Decided - Granted6/2022/0994/HOUSE
Erection of single garage following demolition of existing
47 Codicote Road Welwyn AL6 9TT
Received 27 Apr 2022
Decided - Granted6/2024/1753/EMT
T1 pine tree lift lowest branch by 1m from branch tips which is overhanging boundary with number 19
21 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 11 Sept 2024
Decided - GrantedS6/2006/0536/FP
ERECTION OF REAR CONSERVATORY
35 Mymms Drive Brookmans Park Hatfield AL9 7AE
Received 25 Apr 2006

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