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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 8 Nov 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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

  1. Under Consultation6/2026/1330/HOUSE

    Erection of single storey rear extension with undercroft storage and associated landscaping/land level alterations, alterations to fenestration and part conversion of garage to habitable room

    7 Elmoor Close Welwyn AL6 9PF

    Received 29 Jul 2026
  2. Decided - Granted6/2022/0451/PN8

    Prior approval for the erection of single storey rear extension

    2 King James Avenue Cuffley Potters Bar Hertfordshire EN6 4LR

    Received 24 Feb 2022
  3. Decided - Granted6/2016/0833/TPO

    Reduce Beech tree by upto 12ft covered by TPO 24 (1976)

    4 Mardley Dell Welwyn AL6 0UR

    Received 3 May 2016
  4. Decided - Withdrawn6/2018/2759/PN8

    Prior approval for the erection of single storey rear extension measuring 8m in depth, 2.8m in height, 2.8m to the eaves

    74 Brocket Road Welwyn Garden City AL8 7TU

    Received 25 Oct 2018
  5. Decided - Withdrawn6/2020/2365/EM

    Removal of old flagstone to existing pathway and driveway and renewed with neutral colored semi-permeable block paving. Formation of new vehicular hard standing in neutral colored semi-permeable block paving. Formation of new part-established yew hedge and erection of timber trellis fencing around part of new vehicular hard standing

    3 The Valley Green Welwyn Garden City AL8 7DQ

    Received 15 Sept 2020
  6. Decided - Granted6/2025/1263/EM

    Erection of single storey side extension and garage conversion

    24 St Audreys Green Welwyn Garden City AL7 3RT

    Received 19 Jun 2025
  7. Decided - Refused6/2019/0135/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3.47m in height, 2.5m to the eaves

    6 Whitethorn Welwyn Garden City AL7 3EX

    Received 22 Jan 2019
  8. Decided - Granted6/2025/1357/FULL

    Replacement of existing externally facing ATM with new model ATM with illuminated surrounding acrylic collar

    The Howard Centre Units 12 And 12a Howardsgate Welwyn Garden City AL8 6HA

    Received 30 Jun 2025
  9. Decided - Granted6/2019/2896/COND

    Submission pursuant to condition 1 (Methodology and Schedule of repair to the render on the north wall) on listed building consent application 6/2019/1414/LB

    4 London Road Welwyn AL6 9EL

    Received 18 Nov 2019
  10. Decided - GrantedN6/2006/0678/FP

    TWO STOREY AND SINGLE STOREY REAR EXTENSION AND INTEGRAL GARAGE

    32 Attimore Road Welwyn Garden City AL8 6LP

    Received 25 May 2006
  11. Decided - Granted6/2021/2585/HOUSE

    Erection of single storey rear extension

    64 Newfields Welwyn Garden City AL8 6YT

    Received 6 Sept 2021
  12. Decided - Withdrawn6/2017/1797/HOUSE

    Erection of single storey front extension

    11 Elm Drive Hatfield AL10 8NR

    Received 15 Aug 2017
  13. Decided - GrantedS6/2013/0542/NM

    Non material amendmnet following approval of planning permission S6/2012/2070/FP - Alterations to the size of the orangery and garage plus amendments to first floor window positions

    6 Shrublands, Brookmans Park, Hatfield, AL9 7AL

    Received 22 Mar 2013
  14. Decided - GrantedS6/2007/1040/FP

    CONVERSION OF LOFT AND INSERTION OF REAR DORMER WINDOW

    31 Bluebridge Road Brookmans Park Hatfield AL9 7UW

    Received 10 Jul 2007
  15. Decided - GrantedN6/2007/0291/FP

    ERECTION OF A 2.4 METRE HIGH PALISADE FENCE TO CAR COMPOUND

    Grange of Welwyn Great North Road Welwyn Garden City AL8 7TQ

    Received 22 Feb 2007
  16. Decided - GrantedW6/2007/0470/EM

    ERECTION OF REPLACEMENT SUMMER HOUSE

    20 Guessens Road, Welwyn Garden City, AL8 6RA

    Received 19 Mar 2007
  17. Decided - Granted6/2019/0632/HOUSE

    Erection of a single storey rear extension

    4 The Close Brookmans Park Hatfield AL9 7QN

    Received 18 Mar 2019
  18. Decided - GrantedN6/2013/1100/NM

    Non material amendment following approval of planning permission N6/2013/0236/FP - Inclusion of a double door from lounge onto rear garden

    14 Wilga Road, WELWYN, AL6 9PS

    Received 29 May 2013
  19. Decided - GrantedN6/2013/1060/FP

    Erection of porch

    11 Bennett Close, WELWYN GARDEN CITY, AL7 4JA

    Received 22 May 2013
  20. Decided - GrantedS6/2013/1202/FP

    Erection of two storey rear extension

    34 Somers Road, Welham Green, HATFIELD, AL9 7PX

    Received 7 Jun 2013
  21. Decided - GrantedS6/2008/0960/FP

    ERECTION OF FRONT PORCH AND SINGLE STOREY REAR EXTENSION

    12 PLOUGH HILL, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4DR

    Received 21 Jun 2008
  22. Decided - Granted6/2022/1660/EMT

    T1- Oak in rear garden - Reduce crown by 3 metres to suitable points of growth.

    6 Densley Close, Welwyn Garden City, AL8 7JX

    Received 14 Jul 2022
  23. Decided - Refused6/2020/1381/HOUSE

    Erection of single storey and part first floor rear and side extension, installation of rear dormer and 3 x roof lights

    51 Peplins Way Hatfield AL9 7UR

    Received 16 Jun 2020
  24. Decided - Granted6/2024/1166/LAWP

    Certificate of lawfulness for a garage conversion with replacement of door with window

    48 Springfields Welwyn Garden City AL8 6XN

    Received 21 Jun 2024

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.

  • 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.

  • 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.

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