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

35,415Searchable applications

331Recorded as pending

87%Approval rate · 29,499 approved or refused records

3,978Refused applications

25,521 approved · 3,978 refused · 1,842 withdrawn. Received dates in our records: 29 Apr 1948 to 16 Oct 2026. Most recent record check: 23 Oct 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 Counts reflect the last collected status; some records may be out of date.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 - RefusedN6/2008/1828/FP
ERECTION OF SINGLE STOREY SIDE AND REAR EXTENSIONS
MELBOURNE STUD, WATEREND LANE, AYOT ST PETER, WELWYN, HERTFORDSHIRE, AL6 9BB
Received 25 Sept 2008
Decided - Granted6/2015/1805/EM
Remove Epicormic growth and crown lift Oak tree to 4m
29 Roundwood Drive, Welwyn Garden City, AL8 7JZ
Received 26 Aug 2015
Decided - Granted6/2021/1429/EM
Replacement of garage door with traditional style side hinged door with windows.
30 Youngs Rise Welwyn Garden City AL8 6RU
Received 6 May 2021
DecidedN6/2008/1378/TE
REMOVAL OF DEAD TREE IN REAR OF GARDEN
23 WOODLAND RISE, WELWYN GARDEN CITY, AL8 7LJ
Received 6 Aug 2008
Decided - Withdrawn6/2018/1751/HOUSE
Erection of first floor side and two storey rear extensions including alterations to openings
1 Palmerston Close Welwyn Garden City AL8 7DL
Received 2 Jul 2018
Appeal Decided - Dismissed6/2019/0221/EM
Installation of 1 x rear dormer to facilitate extension of existing loft
348 Howlands Welwyn Garden City AL7 4HD
Received 1 Feb 2019
Decided - GrantedS6/2013/1329/S73A
Variation of condition 1 (time limit) from planning permission S6/2010/0204/FP - Erection of first floor rear extension and enlarged front dormer
29 St Albans Road East, Hatfield, AL10 0EJ
Received 19 Jun 2013
Decided - Granted6/2022/0624/HOUSE
Erection of rear conservatory
2 Gresley Close Welwyn Garden City Hertfordshire AL8 7QB
Received 16 Mar 2022
Decided - Granted6/2017/2097/HOUSE
Erection of single storey rear extension
56 Rivenhall End Welwyn Garden City AL7 2PH
Received 18 Sept 2017
Decided - Granted6/2021/0985/EMT
Reduce Twin Stem Silver Birch by 2m height & 1.5m width. Reduce 1x Silver Birch by 2m height and 1.5m width. Fell 1x Whitebeam. Reduce 1x Elder by 2m height. Fell 1x Hawthorn to ground level
24 Fordwich Road Welwyn Garden City AL8 6EY
Received 25 Mar 2021
Decided - Granted6/2026/0404/HOUSE
Replacement roof of existing garage/outbuilding, incorporating skylights along with other internal and external alterations following partial demolition of outbuilding
116 Harmer Green Lane Digswell Welwyn AL6 0ET
Received 5 Mar 2026
Decided - Refused6/2016/0672/HOUSE
Erection of part two and part single storey side and rear extensions
16 The Grove, Brookmans Park, Hatfield, AL9 7RN
Received 12 Apr 2016
Decided - RefusedS6/2014/0480/FP
Erection of detached garage following demolition of existing garage
7 High Dells Hatfield AL10 9JD
Received 5 Mar 2014
Decided - Granted6/2020/0010/COND
Submission of details pursuant conditions 3 (Scheme to Protect Occupiers from Traffic Noise) 4 (Construction Method Statement) & 6 (Scaled plan of both hard and soft landscape) on planning application 6/2019/1552/FULL
2 Maran Avenue Welwyn AL6 9HS
Received 3 Jan 2020
Decided - Granted6/2016/1586/LB
Replacement of 4no. sash windows at front of property with identical sash windows and the replacement of 2no. side windows with identical windows
10 Park Street, Hatfield, AL9 5AX
Received 3 Aug 2016
Decided - RefusedS6/2013/2053/FP
Alterations to existing front boundary wall, railings and gates
63 The Ridgeway, Cuffley, Potters Bar, EN6 4BD
Received 20 Sept 2013
Decided - Granted6/2017/1331/EM
Fell 1 x Ash tree and 1 x Cherry tree
40 Reddings Welwyn Garden City AL8 7LA
Received 20 Jun 2017
Decided - Granted6/2022/0651/HOUSE
Erection of single storey rear extension
13 Attimore Close Welwyn Garden City AL8 6LN
Received 21 Mar 2022
Decided - GrantedS6/2009/1626/FP
CONVERSION OF INTEGRAL GARAGE TO UTILITY ROOM AND STUDY AND ADDITIONAL HARD STANDING FOR CAR PARKING SPACE
46 Bluebell Way Hatfield AL10 9FJ
Received 31 Jul 2009
Decided - Granted6/2016/0191/TPO
Fell 9 Sycamore trees, 1 Beech tree and 1 Oak tree plus reduce 2 Beech trees, 1 Chestnut tree and 1 Oak trees by 25% covered by TPO 24
12 Mardley Hill Welwyn AL6 0TN
Received 1 Feb 2016
Decided - Granted6/2021/1279/COND
Submission of details pursuant to condition number 3 (air quality impact assessment) on planning permission 6/2019/2430/MAJ
1 and 1a and 3-9 Town Centre Hatfield AL10 0JZ
Received 21 Apr 2021
Decided - Granted6/2018/0228/EM
Erection of a garden shed in rear garden - retrospective
32 Parkway Welwyn Garden City AL8 6HQ
Received 15 Jan 2018
Decided - Granted6/2016/2116/EM
T1- Monterey Cypress, reduce crown by 30%
23 Parkfields, Welwyn Garden City, AL8 6EE
Received 23 Sept 2016
Decided - GrantedW6/2013/0376/EM
Erection of single storey rear conservatory
31 Thistle Grove, WELWYN GARDEN CITY, AL7 4AD
Received 22 Feb 2013

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