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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
24,737Searchable applications
313Recorded as pending
86%Approval rate · 20,288 approved or refused records
2,802Refused applications

17,486 approved · 2,802 refused · 1,303 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/3072/TPO

    Thin and reduce volume and remove epicormic trunk growth to crown break of 1 x Oak tree by 30% - Covered by TPO 695 (2017)

    40 Tolmers Road Cuffley Potters Bar EN6 4JF

    Received 29 Nov 2018
  2. Decided - Granted6/2021/3091/EM

    Erection of garden pod/summerhouse in rear garden

    30 Coneydale Welwyn Garden City AL8 7RZ

    Received 28 Oct 2021
  3. Decided - Granted6/2021/1005/TPO

    Fell oak tree T1

    7 The Drive Welwyn AL6 0TW

    Received 26 Mar 2021
  4. Decided - Granted6/2021/2825/TPO

    Oak (T1) - crown reduction, of up to 25% to reduce excessive shading of the property covered by TPO 930 Hornbeam x 1 to reduce crown of up to 25% covered by a conservation area

    4 Ashley Close Welwyn Garden City AL8 7LH

    Received 1 Oct 2021
  5. Decided - Granted6/2021/3101/EM

    Erection of a single storey side/rear extension with raised decking area following demolition of existing single storey side extension

    65 Lemsford Lane Welwyn Garden City AL8 6YN

    Received 29 Oct 2021
  6. Decided - Granted6/2020/0048/HOUSE

    Erection of a front porch, first floor rear and side extensions, two storey gable ended front extension, 1 no. front and 2. No rear dormer windows and front and rear rooflights to facilitate a loft conversion. Insertion of first floor side windows and alteration to fenestration.

    18 Pine Grove Brookmans Park Hatfield AL9 7BS

    Received 10 Jan 2020
  7. Under Consultation6/2026/1579/HOUSE

    Erection of part single, part two storey rear extension and the installation of two new windows within the side elevation

    55 Wood Common Hatfield AL10 0UE

    Received 10 Sept 2026
  8. Decided - Granted6/2019/0857/MAJ

    Removal of existing children's playground and reinstatement of ground as parkland; construction of new playground including splash pad with associated changing room facility; kiosk; fencing around compound; outdoor gym equipment; drainage; earthworks and landscaping

    Stanborough Park North Stanborough Park Stanborough Road AL8 6DF

    Received 9 Apr 2019
  9. Decided - Refused6/2022/2136/COND

    Submission of details pursuant of condition 4 (SUDs) on planning permission 6/2019/2431/MAJ

    Link Drive Car Park Link Drive Hatfield AL10 8TY

    Received 13 Sept 2022
  10. Decided - Refused6/2016/0233/FULL

    Erection of 1no four bedroom dwellinghouse following demolition of existing house

    7 Orchard Close, Cuffley, Potters Bar, EN6 4QD

    Received 10 Feb 2016
  11. Decided - Withdrawn6/2025/1046/EMT

    T1 Plum - Fell due to rotting T2 Cherry Plum - lift the crown to about 3m and lightly shape T3 Tulip tree - lift the crown by 3m, reduce the overhanging canopy away from the house and away from the phone lines, and reduce the overall height by 5m T5 Cherry - lift the crown to about 3m and lightly shape T7 Yew Tree - lift the crown by 3m, reduce the overall diameter by 20% and thin the crown

    40 Handside Lane Welwyn Garden City AL8 6SJ

    Received 2 Jun 2025
  12. Decided - Granted6/2021/1580/TPO

    Lift canopy of 1 x Oak tree to 4m above ground level

    15 Reeves Court Welwyn AL6 9FU

    Received 18 May 2021
  13. Decided - Granted6/2017/1781/TPO

    T1: Oak - Reduce by 3 m. T2: Cherry to fell. TPO 238 (2001)

    21C Canonsfield Welwyn AL6 0QB

    Received 7 Aug 2017
  14. Decided - Granted6/2019/0551/TPO

    Reduce 3 x Oak trees (T1, T2, T3) by 30% and crown clean and 1 x Chestnut tree (T4) by 30% and crown clean - covered by TPO 700 (2017)

    1 Copse Hill Welwyn AL6 0SG

    Received 5 Mar 2019
  15. Decided - Refused6/2021/1562/LAWP

    Certificate of lawfulness for a single storey rear extension to replace existing conservatory

    29 Upperfield Road Welwyn Garden City AL7 3LP

    Received 17 May 2021
  16. Decided - Granted6/2019/1418/HOUSE

    Erection of a single storey rear extension

    32 Barnfield Road Welwyn Garden City AL7 3TQ

    Received 12 Jun 2019
  17. Decided6/2024/1333/TC

    1 x Silver Birch to reduce by approximately 2.5m height and 1.5m in width due to substantial lateral growth

    222 Handside Lane Welwyn Garden City AL8 6TD

    Received 11 Jul 2024
  18. Decided - Granted6/2019/2202/EM

    Fell of 5 x Leylandii trees

    114 The Commons Welwyn Garden City AL7 4SB

    Received 4 Sept 2019
  19. Decided - Granted6/2016/0837/HOUSE

    Erection of part single, part double flank and rear extensions to existing detached house

    4 Dolesbury Drive Welwyn AL6 0QF

    Received 3 May 2016
  20. Decided - Granted6/2018/1036/EM

    Fell 1 x Holly tree on boundary of numbers 16 and 17 of the Old Drive

    16 The Old Drive Welwyn Garden City AL8 6TB

    Received 23 Apr 2018
  21. Decided - Granted6/2021/0461/HOUSE

    Erection of single storey front, rear and side extensions, increase in ridge height to facilitate a first floor extension and associated alterations

    53 Mardley Hill Welwyn AL6 0TT

    Received 12 Feb 2021
  22. Decided - Granted6/2016/0336/HOUSE

    Conversion of garage into habitable room

    3 Blakemere Road, Welwyn Garden City, AL8 7PQ

    Received 26 Feb 2016
  23. Decided - Granted6/2021/2053/HOUSE

    Conversion of garage to habitable use with alterations to front elevation

    25 Chelveston Welwyn Garden City AL7 2PW

    Received 7 Jul 2021
  24. Decided - Refused6/2017/2708/FULL

    Erection of chalet bungalow following demolition of existing dwelling

    The Spinney Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 21 Nov 2017

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

    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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