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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
40,146Searchable applications
300Recorded as pending
86%Approval rate · 33,676 approved or refused records
4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 2 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 Counts reflect the last collected status; some records may be out of date.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 buildingLocal plan Our Local PlanPre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation AreaArticle 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

  1. Decided - Withdrawn6/2019/2182/LAWE

    Certificate of lawfulness for the existing use of an HMO

    28 Roe Green Lane Hatfield AL10 0RZ

    Received 2 Sept 2019
  2. Decided - Granted6/2020/1349/EM

    Replace existing shed with summerhouse/shed

    77 Knightsfield Welwyn Garden City AL8 7JE

    Received 12 Jun 2020
  3. Decided - Refused6/2024/1233/PN10

    Prior Approval for the change of use of an agricultural building into a single dwellinghouse (Class C3)

    Beavers Lodge Farm Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 1 Jul 2024
  4. Decided - Granted6/2023/2289/TC

    Fell T1 - English Walnut (dead)

    2 Mannicotts Welwyn Garden City AL8 7BW

    Received 13 Nov 2023
  5. Decided - Refused6/2017/1321/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension and the installation of 6 roof lights to facilitate loft conversion

    24 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 19 Jun 2017
  6. Decided - Split6/2022/2137/COND

    Submission of details pursuant of condition 19 (contamination) on planning permission 6/2019/2431/MAJ

    Link Drive Car Park Link Drive Hatfield AL10 8TY

    Received 13 Sept 2022
  7. Decided - Granted6/2026/0829/HOUSE

    Erection of single-storey rear extension, two-storey rear extensions and front porch, first-floor rear balcony, replacement rear patio, alterations to openings, installation of new windows and rendering of all external walls

    37 The Ridgeway Cuffley Potters Bar EN6 4BB

    Received 12 May 2026
  8. Decided - GrantedN6/2009/1593/FP

    TWO STOREY REAR EXTENSION

    7 Farm Close, Welwyn Garden City, AL8 6RP

    Received 23 Jul 2009
  9. Decided - Granted6/2023/0326/COND

    Submission of details pursuant to condition 7 (details of the demountable barrier) on planning permission 6/2019/2431/MAJ

    Link Drive Car Park Link Drive Hatfield AL10 8TY

    Received 9 Feb 2023
  10. Decided - GrantedW6/2005/1336/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    62 Homestead Lane, Welwyn Garden City, AL7 4NF

    Received 21 Oct 2005
  11. Decided - Granted6/2021/1116/EMT

    Reduce 3 x Leyland Cypress by 6ft height

    110 Mill Green Road Welwyn Garden City AL7 3XE

    Received 6 Apr 2021
  12. Decided - GrantedN6/2015/1370/FP

    Erection of first floor rear extension

    57 Rosedale Welwyn Garden City AL7 1DP

    Received 23 Jun 2015
  13. Decided - Granted6/2023/0888/TPO

    T1 reduce oak by 1.5 metres due to size and risk of damage. T4 reduce oak by 1.5 metres due to excessive shading and risk of damage. All trees covered by TPO 640 (2017)

    2 The Drive Welwyn AL6 0TR

    Received 26 Apr 2023
  14. Decided - GrantedS6/2008/0553/FP

    ERECTION OF SINGLE STOREY SIDE EXTENSION

    57 Bishops Rise Hatfield AL10 9BX

    Received 11 Mar 2008
  15. Decided - Granted6/2017/2898/PN11

    Prior Approval for the change of use from Use Class B1 (a) (Offices) to Use Class C3 (Residential) to provide 2 self-contained units (1x1-bed and 1x2-bed) and associated refuse storage.

    First Floor York House 4 Wigmores South Welwyn Garden City AL8 6PL

    Received 12 Dec 2017
  16. Decided - Refused6/2016/1464/PN8

    Prior approval for erection of single storey rear extension measuring 6m length, 2.917m high and 2.917m eaves height

    6 Hyde Valley, Welwyn Garden City, AL7 4NA

    Received 19 Jul 2016
  17. Decided - Granted6/2017/2974/HOUSE

    Erection of single storey rear extension

    108 Cole Green Lane Welwyn Garden City AL7 3JD

    Received 28 Dec 2017
  18. Decided - GrantedS6/2015/0433/LUP

    Garage conversion into habitable room

    41 Wellfield Road, Hatfield, AL10 0BY

    Received 3 Mar 2015
  19. Decided - Refused6/2026/0658/HOUSE

    Proposed loft conversion with three side facing dormer windows, one further dormer for the stairs and three side facing roof slope skylights

    38 Butterwick Way Welwyn AL6 9GH

    Received 14 Apr 2026
  20. Decided - Granted6/2022/0510/HOUSE

    Erection of new porch following the demolition of existing porch

    103 Mount Way Welwyn Garden City AL7 4LA

    Received 3 Mar 2022
  21. Decided - RefusedC6/1988/0235/FP

    Two storey and single storey rear extension for office use, and formation of car park, after partial demolition of existing building

    22 Parkway, Welwyn Garden City, AL8 6HG

    Received 1 Jan 1988
  22. Decided - Granted6/2026/0408/COND

    Submission of details pursuant of condition 1 (air ventilation, extraction and odour control systems) on planning permission 6/2023/0653/FULL

    14 Market Place Hatfield AL10 0LN

    Received 5 Mar 2026
  23. Decided - Granted6/2018/3151/FULL

    Erection of a replacement dwelling

    Millers Carbone Hill Northaw Potters Bar SG13 8RG

    Received 11 Dec 2018
  24. Under Consideration6/2026/1368/HOUSE

    Installation of solar panels to the front and rear roofslopes and removal of rear chimney

    44 Attimore Road Welwyn Garden City AL8 6LP

    Received 3 Aug 2026

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

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    Planning application documents: what to read first

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  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

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  • 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.

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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.

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