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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
39,707Searchable applications
343Recorded as pending
86%Approval rate · 33,249 approved or refused records
4,748Refused applications

28,501 approved · 4,748 refused · 2,171 withdrawn. Received dates in our records: 29 Apr 1948 to 21 Oct 2026. Most recent record check: 28 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/0341/EM

    Erection of single storey rear extension and garage conversion, following demolition of conservatory

    41 Longcroft Lane, Welwyn Garden City, AL8 6EB

    Received 13 Feb 2023
  2. Decided - Granted6/2020/1856/HOUSE

    Erection of a single storey rear extension

    25 Haynes Close Welwyn Garden City AL7 3EP

    Received 28 Jul 2020
  3. Decided - Granted6/2018/2555/FULL

    Erection of a rear timber pergola into an external drinking terrace, re-positioned air conditioning unit and festoon lighting and moveable planters.

    The Sun 31 Lemsford Village Welwyn Garden City AL8 7TN

    Received 4 Oct 2018
  4. Decided - GrantedN6/2014/0603/NM

    Non material amendment following approval of planning permission N6/2012/2219/FP - Change of windows to approved elevations

    4 Danesbury Park Road Welwyn AL6 9SE

    Received 27 Mar 2014
  5. Decided - Granted6/2021/1840/HOUSE

    Erection of a first floor side extension including 1 x front facing dormer window and 1 x rear facing dormer window, insertion of 2 x front facing dormer windows to existing roof and garage conversion with insertion of 1 x window to front elevation

    48 Peartree Lane Welwyn Garden City AL7 3UD

    Received 15 Jun 2021
  6. Decided - Granted6/2018/1763/COND

    Submission of details pursuant to Condition 11 (Remediation Of Contaminated Land) on planning permission 6/2018/0285/MAJ

    Unit 3-14 Bridgefields Welwyn Garden City AL7 1RX

    Received 4 Jul 2018
  7. Decided - GrantedS6/2007/0275/FP

    ERECTION OF A TWO STOREY SIDE AND REAR EXTENSION AND SINGLE STOREY REAR EXTENSION

    403 St Albans Road West Hatfield AL10 9RU

    Received 19 Feb 2007
  8. Decided - Granted6/2019/2282/FULL

    Construction of a new substation to support the delivery and operation of Site A

    Royal Veterinary College Hawkshead Lane North Mymms Hatfield AL9 7TA

    Received 16 Sept 2019
  9. Decided - Granted6/2022/2151/HOUSE

    Erection of a single storey part and two storey rear extension

    25 Birchwood Close Hatfield AL10 0PP

    Received 15 Sept 2022
  10. Under Consultation6/2026/1686/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 2.75m to the eaves

    65 Maple Grove Welwyn Garden City AL7 1NN

    Received 23 Sept 2026
  11. Decided - GrantedN6/2008/1646/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    24 MARSDEN GREEN, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6YA

    Received 21 Aug 2008
  12. Decided - GrantedS6/2013/1678/FP

    Erection of stable and formation of hardstanding

    Land at, Hawkshead Road, Brookmans Park, Hatfield, AL9 7SX

    Received 14 Aug 2013
  13. Decided - GrantedW6/2008/0906/EM

    EXTENSION AND RE-LAYING OF EXISTING HARDSTANDING

    32 PARKWAY, WELWYN GARDEN CITY, HERTS, AL8 6HQ

    Received 6 Jun 2008
  14. Decided - Granted6/2020/3254/EMT

    T1 & T2 Hornbeam to be taken down in height to original hedge height (2.5 meters). T3 Hornbeam alongside garage to fell to ground level

    133 Sweet Briar, Welwyn Garden City, AL7 3EB

    Received 3 Dec 2020
  15. Decided - Granted6/2016/1624/HOUSE

    Erection of single storey rear conservatory

    3 Hawbush Rise Welwyn AL6 9PZ

    Received 9 Aug 2016
  16. Decided - GrantedS6/2009/2435/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION AND ALTERATIONS

    36 BRADGATE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4RN

    Received 4 Nov 2009
  17. Decided - Withdrawn6/2023/0712/FULL

    Erection of an additional storey at second floor to accommodate 3 residential units including alterations to internal access, new acoustic encloser and bin and bicycle storage to rear.

    31A Howardsgate Welwyn Garden City AL8 6AP

    Received 29 Mar 2023
  18. Decided - Granted6/2020/0276/TPO

    Fell 150m of trees either side of pipe track

    Brewhouse Farm Wildhill Road Brookmans Park Hatfield AL9 6DS

    Received 30 Jan 2020
  19. Decided - GrantedW6/2007/0206/EM

    ERECTION OF FRONT PORCH

    6 Thumbswood, Welwyn Garden City, AL7 4QE

    Received 8 Feb 2007
  20. Decided - GrantedW6/2013/2558/TE

    Reduce Ash tree by 35% and reduce 1 Hawthorn, 3 Alders and 1 Maple by 30% plus removal of Dead Cherry tree

    Land adj to, 42 & 63 Guessens Court, Welwyn Garden City, AL8 6RB

    Received 26 Nov 2013
  21. Appeal Decided - Dismissed6/2015/2137/HOUSE

    Erection of two storey side and single storey rear extension involving demolition of existing garage

    53 Roe Green Close, Hatfield, AL10 9PF

    Received 20 Oct 2015
  22. Decided - GrantedN6/2008/2094/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION, ALTERATIONS TO FENSTRATION AND PROPOSED VEHICLE HARDSTANDING

    39 GREAT LEY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4TJ

    Received 5 Nov 2008
  23. Decided - Granted6/2019/1332/LB

    Erection of porch and store, alterations to windows and doors, redecorate pergola and internal alterations to include bar counter and partitions, new toilets on the ground floor and first floor

    The Wrestlers Public House 89 Great North Road Hatfield AL9 5LP

    Received 4 Jun 2019
  24. Appeal Decided - DismissedW6/2013/0095/EM

    Replace wooden slate on front elevation with brick

    260 Daniells, WELWYN GARDEN CITY, AL7 1QE

    Received 18 Jan 2013

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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