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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
31,553Searchable applications
303Recorded as pending
87%Approval rate · 26,341 approved or refused records
3,460Refused applications

22,881 approved · 3,460 refused · 1,666 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 19 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 Counts reflect the last collected status; some records may be out of date.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 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 - Granted6/2026/0012/EMT

    To remove a hornbeam tree.

    33 Sherrardspark Road Welwyn Garden City AL8 7JW

    Received 2 Jan 2026
  2. Decided - Refused6/2017/1103/HOUSE

    Erection of part one and two storey side and rear extension and extension of existing garage, including installation of garage doors following removal of existing garage door and enlargement to existing driveway

    28 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 22 May 2017
  3. Decided - Granted6/2016/1790/HOUSE

    Erection of single storey and part two storey rear extension following demolition of existing conservatory. Alterations to openings and windows and installation of 5no. roof lights.

    10 Dicket Mead Welwyn AL6 9NX

    Received 31 Aug 2016
  4. Decided - Refused6/2021/0054/FULL

    Change of use of land from amenity to residential garden land with boundary fence.

    1 Crookhams Welwyn Garden City AL7 1PG

    Received 8 Jan 2021
  5. Decided - Withdrawn6/2023/0212/HOUSE

    Erection of a single storey side extension with front steps

    95 Mill Green Road Welwyn Garden City AL7 3XA

    Received 30 Jan 2023
  6. Decided - Granted6/2019/3062/LB

    Internal alterations to ground floor office space and associated facilities; and internal alterations to first floor staff bedroom space to facilitate its conversion to office space

    The Listed Hangar, Mosquito Way, Hatfield, AL10 9AX

    Received 3 Dec 2019
  7. Decided - Granted6/2019/0379/HOUSE

    Erection of single storey rear extension including balcony to the first floor

    Ivory House High Road Essendon Hatfield AL9 6BN

    Received 19 Feb 2019
  8. Decided - Granted6/2026/1002/EMT

    1 x Hornbeam to reduce by around 1.5m height and width.

    5 Redwoods Welwyn Garden City AL8 7NR

    Received 8 Jun 2026
  9. Decided - Refused6/2022/2235/HOUSE

    Erection of single storey rear infill extension, first floor roof and dormer extension with juliet balcony and front garage and kitchen extension, under existing canopy

    29 Stag Green Avenue Hatfield AL9 5EB

    Received 27 Sept 2022
  10. Decided - Granted6/2016/1330/EM

    Erection of single storey rear extension and insertion of replacement door to side elevation

    14 Howlands, Welwyn Garden City, AL7 4RD

    Received 30 Jun 2016
  11. Decided - Refused6/2020/2225/FULL

    Hip to gable roof alteration with rear dormer window for the creation of a new flat

    2 New Road Welwyn Garden City AL8 7TX

    Received 1 Sept 2020
  12. Decided - GrantedN6/2013/2247/FP

    Erection of first floor and part two storey rear extension and free standing garden room

    5 Lady Grove, Welwyn Garden City, AL7 4DS

    Received 24 Oct 2013
  13. Decided - Granted6/2015/2082/EM

    DD Application - Removal of deadwood and 25% reduction inc dead branches of Locust tree.

    13 Meadow Green, Welwyn Garden City, AL8 6SS

    Received 7 Oct 2015
  14. Decided - Granted6/2025/1408/EMT

    1 x Cherry to fell. 1 x False acacia to reduce by approximately 2.5m in height and width - not exceeding historic pruning points.

    292 Knightsfield Welwyn Garden City AL8 7NQ

    Received 3 Jul 2025
  15. Decided - Granted6/2022/0479/EMH

    Erection of single storey rear extension with insertion of roof lights. Removal of front hedges and new hedges to boundary and one additional parking space.

    58 Lemsford Lane Welwyn Garden City AL8 6YJ

    Received 1 Mar 2022
  16. Decided - Granted6/2020/3000/EMT

    Prunus tree - remove ivy and reduce height by up to 25%.

    46 Moorlands Welwyn Garden City AL7 4PP

    Received 13 Nov 2020
  17. Under Consultation6/2026/1384/FULL

    Change of use from Class E to Sui Generis, installation of kitchen extraction canopy and air supply system on the rear flat roof and 3x cowl lights and retractable awning to the front elevation of the building.

    41 Howardsgate Welwyn Garden City AL8 6AP

    Received 5 Aug 2026
  18. Decided - Granted6/2018/0088/EM

    Fell 1 x Hawthorne, reduce laterals of 1 x Hornbeam by 2.5m and reduce laterals of 1 x Ash by 2.5m - Conservation area

    16 The Wade Welwyn Garden City AL7 4LG

    Received 11 Jan 2018
  19. Decided - Withdrawn6/2026/1049/TC

    Birch tree in corner of boundary next to residential homes, reduction in size by 30% to the overall size of the tree

    41 High Street Welwyn AL6 9EF

    Received 16 Jun 2026
  20. Decided - Granted6/2023/2316/HOUSE

    Two storey rear extension and part garage conversion, to include raising of roof and insertion of rooflight, replacement doors and windows throughout and alterations to external openings to rear and side elevations, driveway extension and path, including removal of Leylandii tree to front

    9 The Quadrangle Welwyn Garden City AL8 6SG

    Received 16 Nov 2023
  21. Decided - Granted6/2021/2728/EMT

    Reduce crown of 1 x oak by 25-30%

    19 Fearnley Road Welwyn Garden City AL8 6HW

    Received 21 Sept 2021
  22. Decided - Granted6/2016/0148/TPO

    T1 Deodar Cedar - Reduction by 1-2m and thin crown by 10% - Conservation Area

    5 Ayot Green, Ayot St Peter, Welwyn, AL6 9AB

    Received 28 Jan 2016
  23. Decided - Granted6/2022/0483/HOUSE

    Erection of single storey rear extension, garage conversion, with insertion of roof lights into proposed and existing roofs and alterations to openings to rear.

    56 Pentley Park Welwyn Garden City AL8 7SG

    Received 1 Mar 2022
  24. Decided - Refused6/2022/2200/FULL

    Change of use from amenity land to residential land and the installation of vehicular hardstanding.

    40 Rowans Welwyn Garden City AL7 1PA

    Received 22 Sept 2022

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

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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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