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England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
34,471Searchable applications
313Recorded as pending
87%Approval rate · 28,751 approved or refused records
3,805Refused applications

24,946 approved · 3,805 refused · 1,792 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/1619/HOUSE

    Erection of a single storey rear extension

    5 Mill Green Lane Hatfield AL9 5FD

    Received 28 Jul 2025
  2. Decided - Withdrawn6/2022/1757/HOUSE

    Erection of single storey side and rear extensions, first floor rear extension, insertion of rooflight windows. (Demolition of garage and single storey as appoved 6/2021/2417/HOUSE)

    15 The Paddocks Welwyn Garden City AL7 2BW

    Received 26 Jul 2022
  3. Decided6/2018/0548/TPO

    Fell 1 x Birch tree

    42 Springfields Welwyn Garden City AL8 6XN

    Received 23 Feb 2018
  4. Decided - GrantedW6/2014/1793/TE

    Removal of Conifer tree

    14 Moorside, Welwyn Garden City, AL7 4QH

    Received 7 Aug 2014
  5. Decided - GrantedN6/2013/2398/TC

    Conifer tree to be felled and second Conifer tree to have crown lifted by 30%

    36 Longcroft Lane, WELWYN GARDEN CITY, AL8 6EF

    Received 30 Oct 2013
  6. Decided - Granted6/2022/1608/VAR

    Variation of condition 1 (temporary use) on planning application 6/2019/0315/FULL

    Royal Veterinary College Hawkshead Lane North Mymms Hertfordshire AL9 7TA

    Received 7 Jul 2022
  7. Decided - GrantedS6/2014/1043/FP

    Erection of a fenced multi use games area with six 10 metre high lighting columns

    Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, AL9 7TA

    Received 12 May 2014
  8. Decided - Withdrawn6/2017/2503/TPO

    Reduce Two Lime Trees located in rear garden by upto 50% - Conservation Area

    38 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 30 Oct 2017
  9. Decided - WithdrawnN6/2014/1006/DS

    Approval of details reserved by conditions 3 (cross section/levels), 4 (landscaping), 5 (materials), 6 (remediation), 7 (energy efficient materials), 8 (construction method statement) and 9 (external lighting) of N6/2013/0341/FP

    Welwyn Car Repairs Ltd, Moorlands, Welwyn Garden City, AL7 4PW

    Received 9 May 2014
  10. Decided - Granted6/2022/2802/HOUSE

    Erection of single storey rear extension

    111 Crawford Road Hatfield AL10 0PF

    Received 12 Dec 2022
  11. Decided - Granted6/2022/0331/FULL

    Change of Use of existing ground floor flat (C3) into a Dental Surgery (E) to facilitate extension of existing surgery

    5 Manor Parade Hatfield AL10 9JS

    Received 14 Feb 2022
  12. Decided - Granted6/2019/0750/ADV

    Installation of 4x illuminated logo fascias and 2x illuminated freestanding totem

    Plot 5100, Mosquito Way, Hatfield Business Park, Hatfield, AL10 9WN

    Received 29 Mar 2019
  13. Decided - Granted6/2019/0334/VAR

    Variation of condition 11 (approved plans) of planning permission 6/2017/1422/FULL

    30 Upland Drive, Brookmans Park, Hatfield, AL9 6PT

    Received 13 Feb 2019
  14. Decided - GrantedN6/2014/2735/TP

    Remove lower branches of Oak tree to a height of 3-4 metres covered by TPO184

    Land adj to, 23 Brooksfield, Welwyn Garden City, AL7 2AS

    Received 19 Dec 2014
  15. Decided - Granted6/2018/0731/HOUSE

    Erection of single storey rear extension and two storey side extension (Amended description)

    1 Corner View Welham Green North Mymms Hatfield AL9 7DH

    Received 15 Mar 2018
  16. Decided - Refused6/2026/0640/HOUSE

    Erection of a two-storey front and side extensions, part single and part two storey rear extension, alterations to fenestration and external materials

    13 Lodge Drive Hatfield AL9 5HL

    Received 10 Apr 2026
  17. Decided - Granted6/2021/2931/HOUSE

    Erection of a detached double garage, and a single storey detached pool house

    8 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

    Received 12 Oct 2021
  18. Decided6/2024/0968/TC

    T1 Hornbeam - Reduce crown by 3 metres in height and 2 metres in spread. T2 Hornbeam - Reduce crown by 3 metres in height and 2 metres in spread. T3 Hornbeam - Reduce crown by 3 metres in height and 2 metres in spread.

    81 Handside Lane Welwyn Garden City AL8 6SH

    Received 23 May 2024
  19. Decided - Granted6/2021/3373/HOUSE

    Erection of two storey side extension, part single storey, part two storey rear extension and new porch

    30 Homewood Avenue Cuffley Potters Bar EN6 4QR

    Received 30 Nov 2021
  20. Decided - Granted6/2025/2552/COND

    Submission of details pursuant to Condition 6 (Materials Samples) on planning permission 6/2022/2759/FULL

    Plot 5610 Gypsy Moth Avenue Hatfield Business Park Hatfield AL10 9BS

    Received 11 Dec 2025
  21. Decided - Granted6/2021/3515/HOUSE

    Proposed single-storey rear extension to replace existing conservatory

    9 The Reeds Welwyn Garden City AL7 3BN

    Received 20 Dec 2021
  22. Decided - Granted6/2018/3001/EM

    Reduce 1 x Old Hornbeam coppice with 5 stems by 25% and 1 x Standard Hornbeam by 25%

    19 Pentley Park Welwyn Garden City AL8 7RT

    Received 23 Nov 2018
  23. Decided - Granted6/2022/0407/HOUSE

    Erection of a part first floor extension with insertion of flank window.

    189 Boundary Lane Welwyn Garden City Hertfordshire AL7 4EJ

    Received 22 Feb 2022
  24. Decided - GrantedW6/2014/1138/EM

    Alteration to vehicle hardstanding to provide extra vehicle space

    6 Dellcott Close, Welwyn Garden City, AL8 7BD

    Received 22 May 2014

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

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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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