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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
21,145Searchable applications
298Recorded as pending
86%Approval rate · 17,075 approved or refused records
2,412Refused applications

14,663 approved · 2,412 refused · 1,083 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/3072/EMT

    Reduce crown of walnut tree by 4 metres in height and 2- 3 metres on sides

    40 Mill Green Road, Welwyn Garden City, AL7 3XF

    Received 26 Oct 2021
  2. Decided - Granted6/2018/2879/HOUSE

    Erection of part single, part two storey side & rear extensions

    76 Tolmers Road Cuffley Potters Bar EN6 4JY

    Received 8 Nov 2018
  3. Decided - Granted6/2019/0212/FULL

    Change of use from retail shop (use class A1) to restaurant (use class A3) and installation of associated extract system

    47 Cole Green Lane Welwyn Garden City AL7 3PP

    Received 1 Feb 2019
  4. Decided - Granted6/2020/2544/EM

    Replacement of canopy and external bin store

    17 Vine Close Welwyn Garden City AL8 7PS

    Received 1 Oct 2020
  5. Decided - Granted6/2018/1120/HOUSE

    Erection of two storey side extension

    43 Forresters Drive Welwyn Garden City AL7 2JA

    Received 30 Apr 2018
  6. Decided - Granted6/2022/2004/LAWP

    Certificate of lawfulness for hip to gable roof extension with rear dormer window and rooflights to front roof slope, to facilitate loft conversion to habitable accommodation. Summerhouse and store outbuilding to rear garden.

    8 The Gardens Brookmans Park Hertfordshire AL9 7UL

    Received 30 Aug 2022
  7. Decided - Granted6/2024/1693/COND

    Submission of details pursuant to Condition 4 (Materials), Condition 5 & 6 (Ecology), Condition 7,8 & 9 (Manufacturing information, electric charging points and solar panels), Condition 10 (Refuse and recycling storage), Condition 12 (Hard and soft landscaping), Condition 13 (Gates), Condition 17 (Bike storge), Condition 20 (External lighting) on Planning permission 6/2023/1898/FULL

    58 Harmer Green Lane Digswell AL6 0AW

    Received 4 Sept 2024
  8. Decided - Granted6/2021/3315/HOUSE

    Erection of single storey side/rear extensions to include insertion of 3 x roof lights and a sun pipe, involving the demolition of the existing conservatory

    7 Willow Grove Welwyn Garden City AL8 7NA

    Received 24 Nov 2021
  9. Decided - Granted6/2023/2127/COND

    Submission of details pursuant of condition 2 (landscape) on planning permission 6/2023/1389/FULL

    Boltons Park Farm 44 Hawkshead Road Little Heath Potters Bar EN6 1NB

    Received 19 Oct 2023
  10. Decided - Granted6/2022/0653/EMT

    2 x birches (identified as large and small on the plan) to 25% reduction of the crown, primarily from the upper branches. We will endeavour to maintain the existing overall shape of the trees.

    23 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 21 Mar 2022
  11. Decided - Split6/2019/2210/COND

    Submission of details pursuant to condition 1 (Noise) and 2 (Pre-Completion Testing) on planning application 6/2018/2034/PN11

    9-11 Stonehills Welwyn Garden City Herts AL8 6WA

    Received 5 Sept 2019
  12. Decided - Granted6/2017/2855/HOUSE

    Erection of single storey ground floor front extension and garage extension, first floor side extension, two storey rear extension, alterations to openings to facilitate loft conversion including rear juliet balcony following remodelling of existing dwelling

    93 Brookmans Avenue Brookmans Park Hatfield AL9 7QG

    Received 7 Dec 2017
  13. Decided - Granted6/2024/0595/TPO

    T1 - Spruce / Fir - 2 Meter crown reduction and removal of dead wood. Reason for Work to be carried out is general maintenance and to allow more light in to clients and neighbouring properties. Trees location is in the garden at the rear of the property on the back boundary fence line TPO 677 (2017)

    8 Mardley Hill Welwyn AL6 0TN

    Received 27 Mar 2024
  14. Decided - Withdrawn6/2019/0409/HOUSE

    Installation of front and side wall, with railings positioned above and sliding electronic gates on each side

    31 The Meadway Cuffley Potters Bar EN6 4ET

    Received 22 Feb 2019
  15. Decided - Granted6/2017/2321/TPO

    Crown reduce multi-stem oak by upto 30% covered by TPO 641 (2017)

    8 Mardley Heights Welwyn AL6 0TX

    Received 10 Oct 2017
  16. Decided6/2019/2565/TC

    Reduce 1x Fastigiate Pyrus tree (P1) by 30%

    26 Guessens Road Welwyn Garden City AL8 6RA

    Received 14 Oct 2019
  17. Decided6/2025/0239/TC

    Remove 3 x Thuja in sections to ground level

    25 Rooks Hill Welwyn Garden City AL8 6EU

    Received 11 Feb 2025
  18. Decided - Granted6/2020/2579/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 7.6m in height.

    45 Codicote Road Welwyn AL6 9TT

    Received 5 Oct 2020
  19. Decided - Granted6/2022/2403/EMT

    Reduction in crown by 40% of mature beech tree

    34 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 17 Oct 2022
  20. Decided - Granted6/2023/2512/TPO

    T1 Oak tree - Reduce crown back to previous reduction points, approx 30% crown reduction.

    6 Heath Close Little Heath Potters Bar EN6 1LT

    Received 18 Dec 2023
  21. Decided - Granted6/2024/0236/HOUSE

    Erection of single storey side and rear extension following demolition of existing rear conservatory, installation of two rooflights to front roofslope and fenestration alterations

    14 Woodgate Avenue Northaw Potters Bar EN6 4EW

    Received 5 Feb 2024
  22. Decided6/2023/0975/TC

    Height reduction of seven Leylandii-type evergreen trees. To reduce height to 5m The trees at their current height are blocking light into both 27 and 29 Reddings

    29 Reddings Welwyn Garden City AL8 7LA

    Received 9 May 2023
  23. Decided - Granted6/2022/2612/HOUSE

    Erection of a part single storey, part first floor side extension with installation of roof lights

    27 Marlborough Close Welwyn AL6 0UG

    Received 16 Nov 2022
  24. Decided - Granted6/2018/2983/FULL

    Erection of single storey rear extension

    70 Great North Road Welwyn AL6 0TA

    Received 20 Nov 2018

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 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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