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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
36,530Searchable applications
335Recorded as pending
86%Approval rate · 30,424 approved or refused records
4,168Refused applications

26,256 approved · 4,168 refused · 1,958 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 24 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 Counts reflect the last collected status; some records may be out of date.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 - Dismissed6/2024/2021/HOUSE

    Erection of carport, construction of brick steps to primary front door and replacement of secondary front door with window and removal of steps

    36 Applecroft Road Welwyn Garden City AL8 6LA

    Received 21 Oct 2024
  2. Decided - Granted6/2017/1774/EM

    Erection of a single storey rear extension following the demolition of existing store room

    95 Sweet Briar Welwyn Garden City AL7 3EB

    Received 11 Aug 2017
  3. Decided - GrantedC6/1988/0842/FP

    Single storey rear extension

    8 Kingsmead, Potters Bar, EN6 4AN

    Received 1 Jan 1988
  4. Decided - Granted6/2015/2362/VAR

    Variation of condition 2 (drawings) on planning application S6/2014/0227/FP

    17 Kingsmead, Cuffley, Potters Bar, EN6 4AN

    Received 19 Nov 2015
  5. Decided - GrantedN6/2009/1098/FP

    ERECTION OF THREE BEDROOM DWELLING, FOLLOWING DEMOLITION OF EXISTING DWELLING

    61 Robbery Bottom Lane Welwyn AL6 0UL

    Received 27 May 2009
  6. Decided - Withdrawn6/2025/0794/TPO

    TG1 Mixed Group- Growing over the rear of the garden form neighbouring property. Cut back level with boundary line. This is made up of Hazel and Elderberry. These are in the garden of Mardley Avenue T1. Hawthorn - Left of the rear garden adjacent to veg patch. Pollard back to historical points TG2. X3 Cypress Trees - In the rear garden adjacent to the pond. Reduce the height by 1.5 metres and shape with hedge cutters (TPO 24 A3)

    27 Mardley Hill Welwyn AL6 0TT

    Received 28 Apr 2025
  7. Decided - Granted6/2016/0616/FULL

    Conversion of existing single dwellinghouse into two dwellinghouses

    2 De Havilland Close Hatfield AL10 0DR

    Received 6 Apr 2016
  8. Decided - Granted6/2021/2264/EM

    Erection of single storey rear extension with insertion of roof light and additional French doors to existing rear elevation.

    21 Golden Dell Welwyn Garden City AL7 4EE

    Received 28 Jul 2021
  9. Decided - GrantedN6/2013/1153/FP

    Loft conversion with dormer to rear and insertion of first floor rear and front windows

    2 Oaklea Welwyn AL6 0PU

    Received 3 Jun 2013
  10. Decided - Granted6/2016/0744/EM

    Improving styled concrete driveway with gravel, gravelling part of the lawn and replacing existing pathways to house and back gate.

    49 Attimore Road, Welwyn Garden City, AL8 6LG

    Received 19 Apr 2016
  11. Decided - GrantedN6/2014/2264/TP

    Crown reduce False Acacia tree from guttering and Crown Lift two London Plane trees by upto 3m - Covered by TPO316

    The Wellington 1 High Street Welwyn AL6 9LZ

    Received 14 Oct 2014
  12. Decided - Granted6/2016/2525/HOUSE

    Erection of 2 single storey rear extensions following demolition of existing conservatory

    42 London Road Welwyn AL6 9JA

    Received 28 Nov 2016
  13. Decided - Granted6/2017/1143/TPO

    Removal of Leylandii hedge (A) from the front of property plus removal of two Eucalyptus trees (B & C) from the rear of the property - Conservation Area

    15 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 25 May 2017
  14. Decided - Granted6/2020/0484/EM

    Fell 1 x Norway Spruce (T1) Fell 1 x Crab Apple (T2) Reduce 1 x Beech tree (T3) to 12ft

    13 Reddings Welwyn Garden City AL8 7LA

    Received 20 Feb 2020
  15. Decided - GrantedN6/2008/2367/FP

    ERECTION OF TWO STOREY SIDE AND SINGLE STOREY REAR EXTENSIONS AND ERECTION OF DETACHED OUTBUILDING

    75 HERNS LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 2AQ

    Received 1 Dec 2008
  16. Decided - Granted6/2023/1526/EM

    Erection of conservatory to rear of property (retrospective)

    179 Howlands Welwyn Garden City AL7 4RL

    Received 20 Jul 2023
  17. Decided - Granted6/2021/0174/EMT

    Reduce crown of 2 x Ash Trees in rear garden by 40%

    64 Attimore Road Welwyn Garden City AL8 6LP

    Received 20 Jan 2021
  18. Decided - Granted6/2022/0187/LAWE

    Certificate of lawfulness for existing outbuilding

    51 Kentish Lane Brookmans Park AL9 6NG

    Received 27 Jan 2022
  19. Decided - WithdrawnW6/2014/1846/EM

    Erection of single storey extension to existing garage

    40 Digswell Road, Welwyn Garden City, AL8 7PA

    Received 18 Aug 2014
  20. Decided6/2017/1718/TPO

    To reduce 2x Ash trees by 30% back to previous cutting points and lift crown to 5 or 6 m above ground- Conservation Area

    12 The Old Drive Welwyn Garden City AL8 6TB

    Received 1 Aug 2017
  21. Decided - Granted6/2017/1737/HOUSE

    Erection of a single storey side extension

    4 Cattlegate Road Northaw Potters Bar EN6 4DL

    Received 7 Aug 2017
  22. Decided - Granted6/2022/1399/HOUSE

    Erection of single storey rear extension & replacing all windows with new

    37 High Oaks Road Welwyn Garden City Hertfordshire AL8 7BT

    Received 17 Jun 2022
  23. Decided - Granted6/2021/3265/LAWP

    Certifcate of lawfulness for the erection of garage conversion with insertion of PVCu window and rooflight. The wall below window will be render to match existing.

    4 Hillside Way Welwyn AL6 0TY

    Received 16 Nov 2021
  24. Decided - Granted6/2024/1160/COND

    Submission of details pursuant to Condition 1 (sections and elevations) on Listed Building consent 6/2024/0524/LB

    4 Tolmers Mews Newgate Street Hertford SG13 8RG

    Received 21 Jun 2024

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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