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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
22,377Searchable applications
295Recorded as pending
86%Approval rate · 18,185 approved or refused records
2,574Refused applications

15,611 approved · 2,574 refused · 1,156 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/0241/EM

    Erection of a detached house with garage, parking area and gazebo within rear garden

    28 High Oaks Road Welwyn Garden City AL8 7BH

    Received 9 Feb 2017
  2. Decided - Granted6/2019/3110/EM

    Fell 1 x Ash Tree

    302 Knightsfield Welwyn Garden City AL8 7NQ

    Received 9 Dec 2019
  3. Decided - Granted6/2025/0821/EMT

    1x Silver birch to reduce by approximately 2.5m height and 2m width - to maintain size for the garden. 1x Cherry to reduce by approximately 1m in height and width - to maintain size for the garden

    144 Howlands Welwyn Garden City AL7 4RG

    Received 29 Apr 2025
  4. Decided - Granted6/2020/1782/FULL

    Change of use for commercial use (nail salon).

    38 High Street Welwyn AL6 9EQ

    Received 21 Jul 2020
  5. Decided - Refused6/2020/2261/TPO

    Reduce T1 Conifer by 2-3m in height and 1m in width fell T2 Conifer reduce T3 Beech approx 2m from branch tips fell T4 Beech lift T5 Pine by 2m over neighbour's drive lift G1 mixed broadleaf/oak by 6m over The Drive All the trees are covered by TPO 633

    17 The Drive Welwyn AL6 0TW

    Received 3 Sept 2020
  6. Decided - Granted6/2021/2560/HOUSE

    Alterations to fenestrations to the main dwelling including replacement roof tiles, doors, windows, render and insertion of rear rooflights. Reduction of front porch and removal of existing pitched roof features above windows on front elevation. New windows and replacement tiles, cladding and door to the existing garage

    28 The Avenue Welwyn AL6 0PP

    Received 2 Sept 2021
  7. Decided - Granted6/2020/3066/TPO

    T1 Oak - 30% Thin, T2 Oak - 30% Thin, T3 Sweet Chestnut - 30% Thin

    4 The Drive Welwyn AL6 0TR

    Received 19 Nov 2020
  8. Decided - Withdrawn6/2018/1197/FULL

    Erection of gates and fencing

    Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ

    Received 8 May 2018
  9. Decided - Granted6/2025/2484/FULL

    Retrospective subdivision of flat into two separate dwellings

    109 Woods Avenue Hatfield AL10 8QQ

    Received 27 Nov 2025
  10. Decided6/2020/2188/TC

    Removal of Silver Birch tree

    9 Downfields Welwyn Garden City AL8 6XR

    Received 27 Aug 2020
  11. Decided - Granted6/2022/1373/HOUSE

    Erection of single storey front and rear extension

    3 Harvest Mead Hatfield AL10 0JD

    Received 13 Jun 2022
  12. Decided - Refused6/2019/0599/HOUSE

    Erection of a boundary fence following demolition of existing fence and expansion of vehicular entrance

    37 The Ridgeway, Cuffley, Potters Bar, EN6 4BB

    Received 13 Mar 2019
  13. Decided - Granted6/2026/1029/LAWP

    Certificate of lawfulness for proposed outbuilding

    Sunnyside Essendon Hill Essendon Hatfield AL9 6AJ

    Received 11 Jun 2026
  14. Decided - Refused6/2025/2246/LB

    Replace existing timber cladding with matching fibre cement weatherboard

    The Old Cottage Green Lanes Hatfield AL10 9BH

    Received 23 Oct 2025
  15. Decided - Refused6/2019/0403/HOUSE

    Erection of part single, part double storey side, rear and front extension

    47 Great North Road Brookmans Park Hatfield AL9 6LB

    Received 21 Feb 2019
  16. Decided - Granted6/2024/1384/EM

    Amendment to approved application 6/2023/0786/EM to substitute the boundary wall for a 2.2m close board fence.

    49 Marley Road, Welwyn Garden City, AL7 4BT

    Received 19 Jul 2024
  17. Decided - Refused6/2017/0158/HOUSE

    Erection of single storey rear extension incorporating a basement

    56 Plough Hill, Cuffley, Potters Bar, EN6 4DS

    Received 27 Jan 2017
  18. Decided - Granted6/2017/2595/HOUSE

    Erection of single storey side and rear extension and first floor side extension

    14 Crossway Welwyn Garden City AL8 7EE

    Received 8 Nov 2017
  19. Decided6/2026/1492/TC

    1 x Irish Yew to remove in sections to ground level. Remove as tree is close to front room window and blocking the light

    49 Knightsfield Welwyn Garden City AL8 7JE

    Received 25 Aug 2026
  20. Under Consideration6/2026/1502/HOUSE

    Erection of single storey rear extension with raising of roof to existing extension, and alterations to openings to rear and side elevations

    143 The Ryde Hatfield AL9 5DP

    Received 26 Aug 2026
  21. Decided - Refused6/2022/2727/LAWP

    Certificate of lawfulness for the erection of front porch

    9 South Drive Cuffley Potters Bar EN6 4HP

    Received 1 Dec 2022
  22. Decided - Granted6/2024/2368/HOUSE

    Proposed garage conversion with alterations to the fenestration and erection of rear conservatory

    35 Ramblers Way Welwyn Garden City AL7 2JU

    Received 11 Dec 2024
  23. Decided6/2023/0760/TC

    T1-Eucalyptus-Crown reduce all round by 3-4 metres to maintain size and shape for area.

    53 Springfields Welwyn Garden City AL8 6XT

    Received 5 Apr 2023
  24. Decided - Granted6/2019/1106/COND

    Submission of details pursuant to condition 1(submission of a detailed surface water drainage scheme for the Site) on planning application 6/2018/1922/FULL

    The Stanborough Stanborough Road Welwyn Garden City AL8 6DQ

    Received 8 May 2019

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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