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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
35,316Searchable applications
319Recorded as pending
87%Approval rate · 29,421 approved or refused records
3,956Refused applications

25,465 approved · 3,956 refused · 1,840 withdrawn. Received dates in our records: 29 Apr 1948 to 16 Oct 2026. Most recent record check: 23 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/3239/EM

    Re pollard 1 x Goat Willow tree

    13 Hillside Welwyn Garden City AL7 4PZ

    Received 20 Dec 2018
  2. Decided - GrantedN6/2008/1630/CD

    ERECTION OF 4 BED CHILDREN'S HOME FOR CHILDREN AGED 5-11 YEARS WITH A NEW ACCESS FROM HERNS LANE

    SIR FREDERIC OSBORN SCHOOL, HERNS LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2AF

    Received 3 Sept 2008
  3. Decided - GrantedN6/2014/0289/FP

    Erection of single storey side extension

    11 Russellcroft Road, Welwyn Garden City, AL8 6QY

    Received 7 Feb 2014
  4. Decided - GrantedN6/2010/0282/TE

    DISMANTLE MULTI STEMMED LAWSON CONIFER ON RIGHT BOUNDARY TO GROUND LEVEL AND DISMANTLE TWO LAWSON CONIFERS SITUATED ADJACANT TO RIGHT HAND CORNER OF GARDEN TO GROUND LEVEL

    8 ASHLEY CLOSE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LH

    Received 10 Feb 2010
  5. Decided - Granted6/2022/2699/EM

    Erection of single storey rear extension and part first floor rear extension with glazed canopy to side/rear.

    151 Boundary Lane Welwyn Garden City, AL7 4EQ

    Received 28 Nov 2022
  6. Appeal Decided - DismissedS6/2014/2003/FP

    Alterations to extended dwelling to include: Removal of 5no. Dormer windows, removal of first floor side extension, replacement of two storey front extension with single storey entrance porch and retention of single storey rear extension

    Flint Cottage Blackhorse Lane Potters Bar EN6 3NB

    Received 9 Sept 2014
  7. Decided - GrantedN6/2008/0785/FP

    ERECTION OF SINGLE STOREY CONSERVATORY TO REPLACE EXISTING

    26 Harmer Green Lane Digswell Welwyn AL6 0AT

    Received 15 May 2008
  8. Decided - GrantedW6/2014/0865/EM

    Erection of single storey front extension and alterations to existing fenestration

    26 Windhill, Welwyn Garden City, AL7 1RQ

    Received 23 Apr 2014
  9. DecidedN6/2009/0956/TE

    TO REMOVE THE CHERRY TREE FROM THE FRONT OF THE PROPERTY

    33 APPLECROFT ROAD, WELWYN GARDEN CITY, HERTS, AL8 6JZ

    Received 19 May 2009
  10. Decided6/2023/1976/TC

    T1 Beech - Crown reduce by 2-3 metres all round to maintain size and shape

    14 The Valley Green Welwyn Garden City AL8 7DQ

    Received 26 Sept 2023
  11. Decided - GrantedS6/2009/1914/DS

    DISCHARGE OF CONDITIONS 5 (SAMPLES OF MATERIALS) & 6 (CROSS SECTIONS AND LEVELS) & 7 (SETTING OUT) FROM PLANNING PERMMISSION S6/2009/1914/DS

    1 TOLMERS AVENUE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4QE

    Received 2 Sept 2009
  12. Decided - Granted6/2021/3356/LAWP

    Certificate of lawfulness for the conversion of loft into a habitable space

    4 Bramble Road Hatfield AL10 9SA

    Received 29 Nov 2021
  13. Decided - Granted6/2021/1334/HOUSE

    Erection of a ground and first floor side extension with internal alterations and new gable over bedroom 4

    42 The Grove Brookmans Park Hatfield AL9 7RN

    Received 26 Apr 2021
  14. Decided - Granted6/2024/0448/LAWP

    Certificate of lawfulness for the erection of a single storey side extension to replace existing canopy

    Birchwood Nursery School Birchway Hatfield AL10 0PD

    Received 8 Mar 2024
  15. Decided - Granted6/2022/1762/PN8

    Prior approval for the erection of a flat roof single storey rear extension measuring 6m in depth, 3.20m in height and 2.40m to the eaves

    5 Knolles Crescent Welham Green Hatfield AL9 7DZ

    Received 27 Jul 2022
  16. Decided - GrantedS6/2014/2510/FP

    Erection of a two storey side extension and single front and rear extensions including replacement garage

    113 Bramble Road Hatfield AL10 9SD

    Received 17 Nov 2014
  17. Decided - GrantedW6/2013/0305/EM

    Conversion of garage and internal alterations, removal of brick pier adjacent to driveway and new front open porch and rooflights

    38 Holwell Road, WELWYN GARDEN CITY, AL7 3RQ

    Received 11 Feb 2013
  18. Decided - Refused6/2019/0604/EM

    Replacement of front door

    178 Heronswood Road Welwyn Garden City AL7 3EU

    Received 14 Mar 2019
  19. Decided - Granted6/2020/0697/EMT

    Reduce 1 x Birch Tree [T1] by 30%

    9 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 11 Mar 2020
  20. Decided - Granted6/2026/0356/EM

    Erection of part two storey, part single storey side extension and formation of new parking space & crossover, following demolition of existing single storey side extension and part of attached tandem garage

    6 Densley Close Welwyn Garden City AL8 7JX

    Received 26 Feb 2026
  21. Decided - GrantedS6/2014/2396/FP

    Erection of 2 semi detached dwellings following demolition of existing detached dwelling

    67 Mymms Drive, Brookmans Park, Hatfield, AL9 7AA

    Received 29 Oct 2014
  22. Decided - GrantedN6/2012/2526/FP

    Part demolition of existing dwelling and erection of two storey rear/side extension, single storey rear extension and installation of new windows

    5 Ayot Green, Ayot St Peter, WELWYN, AL6 9AB

    Received 29 Nov 2012
  23. Decided - Granted6/2016/2530/EM

    Erection of cosmetic chimney

    176 Heronswood Road Welwyn Garden City AL7 3EU

    Received 25 Nov 2016
  24. Decided - Granted6/2021/3445/HOUSE

    Erection of 2 x single storey rear extensions, partial garage conversion and alterations to ground floor openings. Removal of existing garden steps and retaining wall to facilitate alterations to garden landscaping, to include new garden retaining wall with glazed balustrade, garden steps and raised patio area.

    82 Valley Road Welwyn Garden City AL8 7DP

    Received 8 Dec 2021

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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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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