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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
36,685Searchable applications
335Recorded as pending
86%Approval rate · 30,556 approved or refused records
4,196Refused applications

26,360 approved · 4,196 refused · 1,967 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 25 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/2339/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension

    311 Knightsfield Welwyn Garden City AL8 7NJ

    Received 11 Oct 2017
  2. Decided - Granted6/2022/1261/LB

    Proposed conversion of first floor existing airing cupboard to a WC which is currently accessed via the rear bedroom.

    14 Mill Lane Welwyn AL6 9ET

    Received 27 May 2022
  3. Appeal Decided - Dismissed6/2024/1680/MAJ

    Change of use of land to 'Outdoor sport and recreation' and the construction of an equestrian livery building (Retrospective)

    Cromer Hyde Farm Marford Road Lemsford Welwyn Garden City AL8 7XD

    Received 2 Sept 2024
  4. Decided - GrantedS6/2014/1782/LUP

    Certificate of lawfulness for conversion of a single storey garage to residential accommodation

    Netherfield, Vineyards Road, Northaw, Potters Bar, EN6 4PH

    Received 8 Aug 2014
  5. Decided - GrantedN6/2008/2396/FP

    RAISING THE ROOF HEIGHT OF THE SIDE ELEVATION AND REPLACEMENT WINDOWS

    5 LITTLE YOUNGS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SL

    Received 5 Dec 2008
  6. Decided - Granted6/2018/1721/HOUSE

    Erection of two storey front, rear and side extensions

    12 The Orchard Welwyn Garden City AL8 7PL

    Received 27 Jun 2018
  7. Decided - Refused6/2018/2098/LAWP

    Certificate of lawfulness for the construction of a rear dormer window to facilitate loft conversion

    51 Homewood Avenue Cuffley Potters Bar EN6 4QQ

    Received 13 Aug 2018
  8. Decided - RefusedN6/2007/1360/FP

    ERECTION OF A FRONT BOUNDARY WALL

    65 Robbery Bottom Lane Welwyn AL6 0UL

    Received 12 Sept 2007
  9. Decided - GrantedW6/2009/1153/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    15 BIRDCROFT ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6EH

    Received 3 Jun 2009
  10. Decided - Granted6/2024/0188/EM

    Widening of existing hardstanding to facilitate parking for 2 cars following the removal of crab apple tree

    2 Colgrove Welwyn Garden City AL8 6HU

    Received 30 Jan 2024
  11. Decided - GrantedH/1999/5189/EM

    Erection of front porch

    44 Stockbreach Road, Hatfield, AL10 0BD

    Received 1 Jan 1999
  12. Decided - GrantedW6/2014/0253/TE

    Reduce two Ash trees by upto 20%

    64 Attimore Road, Welwyn Garden City, AL8 6LP

    Received 4 Feb 2014
  13. Decided - Granted6/2016/1515/TPO

    T1 conifer reduce height by 6-8 feet and lift crown up to 8ft, T2 cherry tree reduce crown by 20-25% (2-2.5m) and lift crown up to 12ft from ground - Conservation Area

    17 Walden Place, Welwyn Garden City, AL8 7PG

    Received 26 Jul 2016
  14. Decided - RefusedN6/2007/1101/FP

    ERECTION OF A TWO STOREY REAR EXTENSION AND A DETACHED GARAGE

    72 Peartree Lane Welwyn Garden City AL7 3UH

    Received 23 Jul 2007
  15. Decided - Granted6/2026/0384/EM

    Replace flat roof on garage, kitchen and dining room, garden shed (7 feet by 5 feet) and downstairs windows all like for like

    16 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 3 Mar 2026
  16. Decided - GrantedS6/2009/2613/FP

    ERECTION OF SINGLE STOREY SIDE EXTENSION AND SINGLE STOREY REAR EXTENSION

    RIDGE HOUSE FARM, CATTLEGATE ROAD, NORTHAW, ENFIELD, HERTFORDSHIRE, EN2 8AU

    Received 2 Dec 2009
  17. Decided - GrantedS6/2015/0722/FP

    Alterations to enlarge existing front porch

    30 Hawkshead Lane, Hatfield, AL9 7TB

    Received 1 Apr 2015
  18. Decided - Granted6/2023/0446/EMT

    1 x Oak to reduce by approximately 3m in height and 1.5m in width- The tree is becoming too big for the area and will create more light to a few gardens it covers.

    93 Sweet Briar Welwyn Garden City AL7 3EB

    Received 27 Feb 2023
  19. Decided - Granted6/2017/2221/PN8

    Prior Approval for the erection of a single storey rear extension measuring 6m in depth, 3.6m in height and 3m to the eaves

    101 Wellfield Road Hatfield AL10 0BY

    Received 29 Sept 2017
  20. Decided - Granted6/2019/0146/HOUSE

    Erection of part single part two storey front extension including garage conversion to habitable space, single storey rear extension and raised rear patio

    36 Church Lane Northaw Potters Bar EN6 4NX

    Received 24 Jan 2019
  21. Decided - Granted6/2019/0920/HOUSE

    Retention of existing outbuilding with changes to materials

    2 Chipmunk Chase Hatfield AL10 9GH

    Received 16 Apr 2019
  22. Decided - Granted6/2025/0951/EM

    First floor rear extension, alterations to openings on rear and side elevations plus insertion of roof lantern to existing roof

    22 Youngs Rise Welwyn Garden City AL8 6RU

    Received 22 May 2025
  23. Decided - WithdrawnN6/2014/2146/TC

    Removal of Wild Cherry tree

    54 Attimore Road, Welwyn Garden City, AL8 6LP

    Received 30 Sept 2014
  24. DecidedN6/2008/1924/TC

    WORKS TO TREE.

    LAND ADJACENT TO 40 PARKWAY, WELWYN GARDEN CITY, HERTFORDSHIRE

    Received 9 Oct 2008

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 permission drawings: how to read plans

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  • Property research · 13 min read

    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

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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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