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

40,295Searchable applications

322Recorded as pending

86%Approval rate · 33,786 approved or refused records

4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2008/2068/FP
CONVERSION OF GARAGE INTO HABITABLE ACCOMMODATION AND EXTENSION TO FRONT PORCH
34 POPPYFIELDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2HJ
Received 31 Oct 2008
Decided - GrantedW6/2013/0760/TE
Reduce and thin crown of Oak tree in rear garden by 20% and reduce crown of Rowan tree in front garden by upto 40%
25 Rosedale, WELWYN GARDEN CITY, AL7 1DW
Received 17 Apr 2013
Decided - Granted6/2018/1382/HOUSE
Erection of two storey side extension and alterations to openings on existing side and rear elevations following demolition of existing detached garage
20 Oak Road Woolmer Green Knebworth SG3 6LS
Received 23 May 2018
Decided - Granted6/2017/1106/TPO
Crown reduce two oak trees by 20% and fell a dying oak tree covered by TPO 170 (1992)
61A Pine Grove Brookmans Park Hatfield AL9 7BL
Received 22 May 2017
Decided6/2021/3256/TC
Oak tree 1 - Crown reduction in rear garden overhanging pergola and house up to 2m not exceeding previous cuts. Oak tree 2 - Crown reduction from branch tips in height and lateral growth up to 2m, in back garden leaning not exceeding previous cuts. Oak tree 3 - Crown reduction from branch tips in height and lateral growth up to 2m, in front of house. Remove a small twin-stem ash tree in front of drive.
51 Brockswood Lane Welwyn Garden City AL8 7BU
Received 15 Nov 2021
Decided - GrantedN6/2008/0815/FP
ERECTION OF SINGLE STOREY REAR EXTENSION
98 BUSHEY LEY, WELWYN GARDEN CITY, HERTS, AL7 3HQ
Received 23 May 2008
Decided - GrantedW6/2015/0313/EM
Replacement of gate
10 Fordwich Road, Welwyn Garden City, AL8 6EY
Received 17 Feb 2015
Decided - Granted6/2019/2518/VAR
Variation of condition 1 (hours of operation) on planning permission 6/2019/0909/FULL
Studio 2 Mardleybury Court Woolmer Green Knebworth SG3 6LP
Received 9 Oct 2019
Decided - GrantedC6/1988/7044/AD
Advert
31a Howardsgate, Welwyn Garden City, AL8 6AP
Received 1 Jan 1988
Decided - Granted6/2017/2691/HOUSE
Erection of front porch, two storey side and rear extension
10 Tolmers Avenue Cuffley Potters Bar EN6 4QE
Received 20 Nov 2017
Decided - Granted6/2020/1383/HOUSE
Erection of first storey rear extension
8 Longcroft Lane Welwyn Garden City AL8 6EA
Received 16 Jun 2020
Decided - GrantedW6/2007/0841/EM
ERECTION OF SINGLE STOREY REAR EXTENSION AND RAISING OF ROOF AND ALTERATIONS TO REAR ELEVATION OF GARAGE
18 Turmore Dale, Welwyn Garden City, AL8 6HS
Received 1 Jun 2007
Decided - Granted6/2016/2090/EM
50% reduction in Poplar tree
5 Fordwich Road, Welwyn Garden City, AL8 6EX
Received 10 Oct 2016
Decided - Granted6/2023/1681/COND
Submission of details pursuant to condition number 1 (Archaeological Written Scheme of Investigation) on planning permission 6/2022/1250/HOUSE
13 Elmoor Avenue Welwyn AL6 9PG
Received 10 Aug 2023
Decided - Granted6/2024/2038/HOUSE
Erection of a front porch extension, two storey rear extension, single storey side extension, detached single storey therapy room, regraded front driveway and rear garden and raised patio. All works are to facilitate wheelchair access
3 Reddings Welwyn Garden City AL8 7LA
Received 22 Oct 2024
Decided - Granted6/2016/2040/EM
Erection of first floor rear extension
12 Camfield, Welwyn Garden City, AL7 4ED
Received 22 Sept 2016
Decided - Granted6/2021/3065/HOUSE
Alterations to fenestrations
98 Salisbury Road Welwyn Garden City AL7 3SB
Received 26 Oct 2021
Decided - GrantedN6/2013/2710/FP
Erection of a porch
26 Harmer Green Lane Digswell Welwyn AL6 0AT
Received 20 Dec 2013
Decided - Split6/2024/2303/COND
Submission of details pursuant of condition 1 (Construction Management Scheme), condition 3 (samples of the materials), condition 4 (hard and soft landscape plan), condition 5 (energy efficient construction materials and processes), condition 6 (refuse and recycling storage) & condition 8 (balcony screen) on planning permission 6/2024/0608/FULL
13 Tolmers Road Cuffley Potters Bar EN6 4JF
Received 29 Nov 2024
Decided - Granted6/2023/0260/TPO
T1 - Oak – height 16m / spread 14m Notes of Condition of tree: Previously been pruned hard and has re-grown 3-4m of thus healthy. Requested woks: Reduce crown over all by 1m. Reduce height from 16m to 15m and width from 14m to 13m. Reasons for woks: Due to size and light issue within small garden.
47 Hill Rise Cuffley Potters Bar EN6 4RX
Received 2 Feb 2023
Decided - Granted6/2023/0504/TPO
Three Lombardy poplars (T3, T10 and T11) to be removed to facilitate improvement works to existing underground utilities. One Lombardy poplar (T2) to be removed due to extensive basal cavity with evidence of decay. TPO 561 (2016)
Hatfield Pumping Station Bishops Rise Hatfield AL10 9UN
Received 6 Mar 2023
Decided - GrantedN6/2007/0353/FP
ERECTION OF A BOILER ROOM AND ALTERATIONS TO ELEVATIONS
1 Watchmead Welwyn Garden City AL7 1LT
Received 2 Mar 2007
Decided - GrantedN6/2013/0275/AD
Installation of 1 x illuminated fascia sign
Simmons (Bakers) Ltd, 67 Moors Walk, WELWYN GARDEN CITY, AL7 2BQ
Received 7 Feb 2013
Decided - Granted6/2022/2446/LAWE
Certificate of lawfulness to demonstrate the building has been solely used for agriculture as part of an established agricultural unit.
Building adjacent to 7 Normans Lane Welwyn AL6 9TQ
Received 21 Oct 2022

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

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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