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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
37,763Searchable applications
335Recorded as pending
86%Approval rate · 31,528 approved or refused records
4,425Refused applications

27,103 approved · 4,425 refused · 2,032 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 26 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 Counts reflect the last collected status; some records may be out of date.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. Appeal Decided - Dismissed6/2018/1861/EM

    Installation of 1 x rear dormer to facilitate extension of existing loft

    348 Howlands Welwyn Garden City AL7 4HD

    Received 16 Jul 2018
  2. Decided - Granted6/2026/0768/HOUSE

    Erection of single storey side extension

    8 Dawley Welwyn Garden City AL7 1DZ

    Received 1 May 2026
  3. Decided - Refused6/2026/0948/HOUSE

    Erection of part single, part two storey rear extension and installation of two windows within the right elevation.

    55 Wood Common Hatfield AL10 0UE

    Received 29 May 2026
  4. Decided6/2026/1618/TC

    2 x Apples to reduce by approximately 4ft height and width. Thin outer canopy by 20% crown volume

    39 High Oaks Road Welwyn Garden City AL8 7BT

    Received 17 Sept 2026
  5. Decided - GrantedW6/2013/2389/TE

    Reduce Two low branches of Beech tree by 50%

    7 Mannicotts, Welwyn Garden City, AL8 7BW

    Received 3 Oct 2013
  6. Decided - Granted6/2022/2402/VAR

    Variation of condition 2 (revised drawings) on planning permission 6/2022/0971/HOUSE

    31 Mardley Avenue Welwyn AL6 0TU

    Received 17 Oct 2022
  7. Decided - GrantedS6/2008/0861/FP

    ERECTION OF FIRST FLOOR EXTENSION OVER EXISTING GARAGE AND TWO STOREY REAR EXTENSION

    20 PLEASANT RISE, HATFIELD, HERTFORDSHIRE, AL9 5DS

    Received 29 May 2008
  8. Decided - GrantedC6/1987/0460/FP

    Two storey and single storey rear extension

    14 Dellcott Close, Welwyn Garden City, AL8 7BD

    Received 1 Jan 1987
  9. Decided - Granted6/2026/0218/COND

    Submission of details pursuant to condition number 3 (Written Scheme of Investigation) on listed building consent 6/2024/1850/VAR

    Templewood Primary School Pentley Park Welwyn Garden City AL8 7SD

    Received 9 Feb 2026
  10. Decided - GrantedS6/2014/0489/FP

    Erection of part two and part first floor rear extension, rear conservatory, two storey front extension and alterations to roof

    31 Mymms Drive, Brookmans Park, Hatfield, AL9 7AE

    Received 10 Mar 2014
  11. Decided - GrantedN6/2014/0334/FP

    Erection of single storey side and rear extensions

    53 Newfields, Welwyn Garden City, AL8 6YS

    Received 12 Feb 2014
  12. Decided - Granted6/2017/1862/EM

    Reduce 1 x Hawthorn tree by up to 1.5m in height & width

    389 Knightsfield Welwyn Garden City AL8 7NB

    Received 22 Aug 2017
  13. Decided - Granted6/2024/2213/ADV

    Proposal to install 3x Fascia, 4x Aluminium panel signs

    Shire Park Heart Falcon Way Welwyn Garden City AL7 1TW

    Received 18 Nov 2024
  14. Decided - Granted6/2021/0941/HOUSE

    Erection of timber garden summerhouse to rear garden

    4 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 23 Mar 2021
  15. Decided - Granted6/2015/1562/HOUSE

    Erection of two storey front and rear extensions and a single storey rear extension.

    17 Barfolds, Welham Green, Hatfield, AL9 7NG

    Received 23 Jul 2015
  16. Decided - Granted6/2017/1569/HOUSE

    Erection of a rear conservatory following demolition of existing rear porch

    3 Hunsdon Welwyn Garden City AL7 2PN

    Received 18 Jul 2017
  17. Decided - GrantedW6/2008/0030/EM

    ERECTION OF SINGLE STOREY SIDE AND REAR EXTENSION

    97 SALISBURY ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3RY

    Received 10 Jan 2008
  18. Decided - Granted6/2023/0659/LAWP

    Certificate of lawfulness for garage conversion to habitable room

    1 Pond Field Welwyn Garden City AL7 1PR

    Received 23 Mar 2023
  19. Decided - Granted6/2024/1792/FULL

    Erection of a rear extension

    109 Woods Avenue Hatfield AL10 8QQ

    Received 17 Sept 2024
  20. Decided - Split6/2016/1494/COND

    Approval of details reserved by condition 9 (archaeological scheme) on outline planning permission N6/2011/359/OP

    Queen Elizabeth II Hospital, Howlands, Welwyn Garden City, AL7 4HQ

    Received 25 Jul 2016
  21. Decided - Granted6/2024/0250/TPO

    T1 Hornbeam To clear phone lines by 50cm. T17 Oak Crown lift to 4m. T19 Oak Crown lift 4m; Remove deadwood. T20 Oak Crown lift 4m; Remove deadwood extending to cabin; and crown reduce to previous pruning points. T21 Oak Crown lift to 3m. T22 Oak Crown lift to 3m; Crown reduce by 20%; Remove deadwood. T23 Oak Crown lift to 3m. T24 Oak Crown lift to 3m. T25 Oak Crown reduction by 25%. Covered by TPO02 G39

    The Spinney Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 6 Feb 2024
  22. Decided - Refused6/2018/0727/HOUSE

    Erection of a front porch, alterations to elevations and removal of a front hedge

    11 Lady Grove Welwyn Garden City AL7 4DS

    Received 19 Mar 2018
  23. Decided - Refused6/2019/1345/MAJ

    Creation of a new landscaped area through the re-profiling of existing earth works (undertaken in connection with residential development to the north) involving the demolition of existing structures and new planting - Retrospective

    Former The Frythe 5 Digswell Hill Welwyn AL6 9AR

    Received 5 Jun 2019
  24. Decided - GrantedN6/2007/1379/FP

    CHANGE OF USE OF LAND FROM AGRICULTRAL TO RECREATIONAL (FORMATION OF TENNIS COURT & ENCLOSURE)

    The Manor House Hill Farm Lane Ayot St Lawrence Welwyn AL6 9BP

    Received 23 Aug 2007

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

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How to search planning applications

Guides to planning records

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    Planning approval rates: how to read council statistics

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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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