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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
40,146Searchable applications
300Recorded as pending
86%Approval rate · 33,676 approved or refused records
4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 31 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2007/0425/LU

    CERTIFICATE OF LAWFULNESS FOR EXISTING REAR CONSERVATORY.

    12 Poundwell Welwyn Garden City AL7 3NP

    Received 15 Mar 2007
  2. Decided - WithdrawnN6/2009/1344/FP

    ERECTION OF TWO STOREY REAR EXTENSION

    89 OAKDALE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7QP

    Received 23 Jun 2009
  3. Decided - Granted6/2019/1848/HOUSE

    Erection of single storey rear extension

    55 Green Lanes Hatfield AL10 9JY

    Received 29 Jul 2019
  4. Decided - Granted6/2021/1440/FULL

    Erection of a first floor rear extension, loft conversion with insertion of a rear dormer and installation of 3 x front skylights, ground floor residential access, to create 1 x additional residential unit.

    18 Station Road Cuffley Potters Bar EN6 4HT

    Received 7 May 2021
  5. Decided - GrantedS6/2013/1920/FP

    Development of 5no residential apartments to incorporate a Grade II Listed Mural to side elevation in place of 2no houses (approved under S6/2012/1790/S73B) and substitution of 1no two storey unit with 1no two and half storey units

    Former Three Valleys Water, Bishops Rise, Hatfield, AL10 9HJ

    Received 3 Sept 2013
  6. Decided - Refused6/2019/0103/EM

    Redesign of driveway including alterations to landscaping

    85 Valley Road Welwyn Garden City AL8 7DR

    Received 21 Jan 2019
  7. Decided - Granted6/2019/2326/HOUSE

    Erection of single storey side and rear extension following demolition of conservatory

    28 Lemsford Lane Welwyn Garden City AL8 6YJ

    Received 23 Sept 2019
  8. Decided - Granted6/2024/2172/EM

    Erection of a single storey rear extension and part garage conversion, including raising of garage roof

    7 Nut Grove Welwyn Garden City AL8 7SQ

    Received 11 Nov 2024
  9. Decided6/2025/0829/TC

    T1 Conifer to fell as becoming swamped in Ivy causing it to split apart.

    2 Hyde Valley Welwyn Garden City AL7 4NA

    Received 30 Apr 2025
  10. Decided - Granted6/2018/1268/HOUSE

    Erection of a first floor rear extension including installation of side window

    40 The Gardens, Brookmans Park, Hatfield, AL9 7UL

    Received 14 May 2018
  11. Decided - Granted6/2024/2114/FULL

    Erection of new detached dwelling with basement and installation of heat pump following the demolition of the existing dwelling

    20 Bell Lane Brookmans Park AL9 7AY

    Received 1 Nov 2024
  12. Decided - Granted6/2021/2550/HOUSE

    Erection of a part two storey, part single storey rear extension following demolition of rear conservatory.

    38 Hyde Way Welwyn Garden City AL7 3AE

    Received 1 Sept 2021
  13. Decided - Granted6/2020/3190/FULL

    Construction of a dormer window, installation of front rooflights and a hip-to-gable roof enlargement to facilitate the conversion of the existing building into 3 flats

    2 New Road Welwyn Garden City AL8 7TX

    Received 27 Nov 2020
  14. Decided - GrantedS6/2013/0494/FP

    Erection of first floor rear and side extension

    5 Bradmore Way, Brookmans Park, HATFIELD, AL9 7QY

    Received 12 Mar 2013
  15. Decided - Granted6/2018/0565/EM

    Reduce 1 x Yew tree by 30% and trim sides

    17 Meadow Green Welwyn Garden City AL8 6SS

    Received 27 Feb 2018
  16. Decided - GrantedW6/2007/1252/EM

    FORMATION OF VEHICULAR HARDSTANDING

    35 Ryelands, Welwyn Garden City, AL7 4LH

    Received 22 Aug 2007
  17. Decided - GrantedS6/2004/0319/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    14 Stag Green Avenue Hatfield AL9 5DZ

    Received 4 Mar 2004
  18. Decided - GrantedS6/2007/0838/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    6 Peplins Close Brookmans Park Hatfield AL9 7UX

    Received 11 Jun 2007
  19. Decided6/2024/0649/TC

    Removal of partially dead Cherry Tree close to boundary and outbuilding

    14 Cole Green Lane Welwyn Garden City AL7 3PW

    Received 5 Apr 2024
  20. Decided - Granted6/2017/2120/EM

    1 x Robinia to fell to ground level, 1 x Goat Willow to lift to 3.5m above ground level and 1 x Plum to thin, lift to 2.5m and reduce by 1m height and width

    108 Lemsford Lane Welwyn Garden City AL8 6YP

    Received 20 Sept 2017
  21. Decided - Granted6/2019/2247/EM

    Retrospective fell 1x Silver birch tree

    5 Valley Road Welwyn Garden City AL8 7DG

    Received 10 Sept 2019
  22. Decided - Granted6/2025/0059/LAWP

    Certificate of lawfulness to change the use of an existing dwellinghouse to an incidental outbuilding (C3 Use) for purposes ancillary to the residential use of the dwelling known as 15 Swanley Bar Lane

    15A Swanley Bar Lane Little Heath Potters Bar EN6 1NR

    Received 15 Jan 2025
  23. Appeal Decided - DismissedN6/2007/0585/FP

    ERECTION OF FIRST FLOOR SIDE EXTENSION AND SINGLE STOREY REAR EXTENSION

    28 Attimore Road Welwyn Garden City AL8 6LP

    Received 11 Apr 2007
  24. Decided - RefusedN6/2015/1444/PN8

    Prior approval for the erection of single storey timber lean-to measuring 4.5m deep and 2.9m high and 2.15m to the eaves

    109 Salisbury Road Welwyn Garden City AL7 3RY

    Received 7 Jul 2015

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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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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