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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
28,773Searchable applications
307Recorded as pending
87%Approval rate · 23,835 approved or refused records
3,200Refused applications

20,635 approved · 3,200 refused · 1,531 withdrawn. Received dates in our records: 1 Nov 1999 to 13 Oct 2026. Most recent record check: 17 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/1038/EMT

    Fell 1 x Hawthorn

    15 Broadfield Place Welwyn Garden City, AL8 6LJ

    Received 29 Mar 2021
  2. Decided - Granted6/2022/1494/VAR

    Variation of condition 10 (approved plans) and removal of Condition on planning permission 6/2021/3463/FULL

    41 The Avenue Welwyn Hertfordshire AL6 0PW

    Received 27 Jun 2022
  3. Decided - Granted6/2022/2351/TPO

    Fell Ash Tree in rear garden covered by TPO 11 A1

    83 Moffats Lane Brookmans Park Hatfield AL9 7RT

    Received 10 Oct 2022
  4. Decided - Granted6/2020/2742/HOUSE

    Demolition of single storey conservatory and construction of a single storey rear extension, part first floor rear extension and rear hipped roof extension with two rear dormers.

    47 Brookmans Avenue Hatfield AL9 7QH

    Received 21 Oct 2020
  5. Decided - Granted6/2016/0509/PN8

    Prior approval for the erection of a single storey rear extension to include roof light. Measuring 3.7m. in depth, 2.62m. in height and 2.42m. to the eaves

    62 Walnut Grove, Welwyn Garden City, AL7 4EU

    Received 23 Mar 2016
  6. Decided - Granted6/2018/2359/EM

    Fell 1 x Poplar tree

    105 Handside Lane Welwyn Garden City AL8 6SP

    Received 11 Sept 2018
  7. Decided - Granted6/2024/1620/EM

    Alterations and extension to existing outbuilding including new AC unit

    26 Dellcott Close Welwyn Garden City AL8 7BD

    Received 23 Aug 2024
  8. Decided - Granted6/2025/1078/VAR

    Variation of condition 3 (upper floor window located in a wall or roof slope) on planning permission 6/2021/3463/FULL

    41 The Avenue Welwyn AL6 0PW

    Received 6 Jun 2025
  9. Decided6/2019/0515/TPO

    Fell 1 x Apple tree - covered by conservation area

    33 High Oaks Road Welwyn Garden City AL8 7BT

    Received 7 Mar 2019
  10. Decided - Refused6/2018/2351/HOUSE

    Installation of 3x front rooflights and erection of rear dormer with conversion of loft

    35 Dalewood Welwyn Garden City AL7 2JP

    Received 14 Sept 2018
  11. Decided - Granted6/2016/0372/HOUSE

    Erection of a single storey rear ground floor extension with roof lanterns including demolition of the existing conservatory.

    49 Tolmers Road, Cuffley, Potters Bar, EN6 4JG

    Received 7 Mar 2016
  12. Decided - Granted6/2016/0479/EM

    Fell Silver Birch tree

    122 Lemsford Lane, Welwyn Garden City, AL8 6YP

    Received 22 Mar 2016
  13. Decided - Withdrawn6/2021/2387/HOUSE

    Erection of replacement conservatory

    8 Mimram Place Welwyn AL6 9HQ

    Received 12 Aug 2021
  14. Decided - Granted6/2020/2902/HOUSE

    Demolition of porch canopy, erection of single storey front and rear extensions, removal of chimney stack, first floor front and side extension and part two storey rear extension. Part garage conversion and alterations to fenestration.

    17 Greenfield Hatfield AL9 5HW

    Received 6 Nov 2020
  15. Decided - Granted6/2022/2460/COND

    Submission of details pursuant to condition 8 (Landscape Management Plan - Memorial Garden, attenuation pond and car parking area to the south) on planning permission 6/2021/2125/MAJ

    Hertfordshire Constabulary Stanborough Road Welwyn Garden City Hertfordshire AL8 6XF

    Received 25 Oct 2022
  16. Decided - Granted6/2026/0950/EMT

    Remove T1 Poplar.

    35 Attimore Road Welwyn Garden City Hertfordshire AL8 6LQ

    Received 29 May 2026
  17. Decided6/2017/2356/TPO

    Thin T1 Euonymus Europaeus crown located at rear of property by 15% of live branches and reduce crown height and spread by approx. 2 - 2.5 metres plus remove cross branches - Conservation Area

    11 Brockett Close Welwyn Garden City AL8 7BN

    Received 13 Oct 2017
  18. Decided - Granted6/2020/2130/EMH

    Erection of a single storey side extension.

    61 Crookhams Welwyn Garden City AL7 1PG

    Received 14 Aug 2020
  19. Decided - Granted6/2018/3185/EM

    Formation of crossover and parking spaces with installation of charging station with removal of section of hedge

    8 Vine Close Welwyn Garden City AL8 7PS

    Received 14 Dec 2018
  20. Decided - Granted6/2026/0390/PIP

    Erection of one detached dwelling

    Land to the North-West Harmer Green Lane, Digswell, Welwyn

    Received 3 Mar 2026
  21. Decided - Granted6/2015/1739/EM

    Alterations to rear window and doors

    21 Springfields Welwyn Garden City AL8 6XS

    Received 14 Aug 2015
  22. Decided - Refused6/2016/0912/HOUSE

    Conversion of existing garage and existing loft, to include insertion of front and rear dormers

    30 Sherrardspark Road, Welwyn Garden City, AL8 7JS

    Received 11 May 2016
  23. Decided - Granted6/2024/1589/EMT

    1 x Silver birch to reduce by 2m in height and 1m in width. To maintain size and height of tree as growing too big for area near to house

    5 The Valley Green Welwyn Garden City AL8 7DQ

    Received 21 Aug 2024
  24. Decided - Granted6/2021/3472/EM

    Installation of hardstanding to front

    60 Furzefield Road Welwyn Garden City AL7 3RJ

    Received 13 Dec 2021

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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