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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
35,719Searchable applications
331Recorded as pending
86%Approval rate · 29,757 approved or refused records
4,033Refused applications

25,724 approved · 4,033 refused · 1,872 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/1137/HOUSE

    Erection of a single storey and two storey rear extension, insertion of four windows and four rooflights following demolition, external alternations to the buildings and all ancillary works

    Hill House Wildhill Road Hatfield AL9 6EB

    Received 10 May 2019
  2. Decided - Granted6/2018/0423/HOUSE

    Erection of a single storey rear extension and conversion of outbuildings

    16 Twelve Acres Welwyn Garden City AL7 4TG

    Received 12 Feb 2018
  3. Decided - GrantedN6/2010/0399/TC

    REDUCE TWO POPLAR TREES LOCATED IN REAR GARDEN BY 30%

    7 HANDSIDE CLOSE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SR

    Received 25 Feb 2010
  4. Decided - GrantedS6/2015/0046/FP

    Erection of single storey side and rear extension

    33 Swanley Crescent, Little Heath, Potters Bar, EN6 1NQ

    Received 1 Jan 2015
  5. Decided - Granted6/2016/0137/COND

    Approval of details reserved by condition 2 (samples of the materials) on planning permission 6/2015/2125/FULL

    53 Harmer Green Lane Digswell Welwyn AL6 0AP

    Received 25 Jan 2016
  6. Decided - Granted6/2018/3034/HOUSE

    Erection of a two storey side and single storey rear extension and installation of front and rear rooflights to facilitate loft conversion

    60 Beehive Lane Welwyn Garden City AL7 4BP

    Received 27 Nov 2018
  7. Decided - Granted6/2019/3112/COND

    Submission of details pursuant to condition 7 (surface water drainage scheme) on planning permission 6/2018/1519/MAJ

    Street Record Chequers Field Welwyn Garden City AL7 4SX

    Received 9 Dec 2019
  8. Decided - Granted6/2016/1651/HOUSE

    Erection of two storey front & rear extension and garage conversion following the removal of existing porch

    66 Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QQ

    Received 11 Aug 2016
  9. Decided - Split6/2022/2057/COND

    Submission of details pursuant to the discharge of Condition 1 (Construction Management Plan), Condition 2 (Tree Protection) and Condition 3 (Arboricultural Method Statement) on planning reference 6/2021/2492/FULL

    Derelict Garages Hollyfield Hatfield AL10 8LW

    Received 5 Sept 2022
  10. Decided - Granted6/2018/2742/HOUSE

    Installation of 1 front dormer, 1 rear dormer and 2 rooflights for loft conversion, erection of a single storey rear/side extension, increase in height of garage. Construction of rear decking area and balustrade.

    16 Mardley Avenue Welwyn AL6 0UD

    Received 24 Oct 2018
  11. DecidedN6/2009/0059/TC

    REDUCE AND SHAPE CROWN OF CRAB APPLE TREE BY 20%

    LAND AT THE ORCHARD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PL

    Received 8 Jan 2009
  12. Decided - Withdrawn6/2026/0602/EM

    Installation of dropped kerb and EV charging station

    9 Two Acres Welwyn Garden City AL7 4NS

    Received 7 Apr 2026
  13. Decided - Granted6/2021/3212/LAWP

    Certificate of lawfulness for the erection of a swimming pool outbuilding

    7 The Ridgeway Cuffley Potters Bar EN6 4AY

    Received 9 Nov 2021
  14. Decided - Granted6/2018/2356/HOUSE

    Erection of orangery

    New Park Farm New Park Road Newgate Street Hertford SG13 8RD

    Received 14 Sept 2018
  15. Decided - Granted6/2020/1371/EM

    Erection of timber gazebo in rear garden

    3 Youngs Rise Welwyn Garden City AL8 6RT

    Received 15 Jun 2020
  16. Appeal Decided - Dismissed6/2018/3012/FULL

    Subdivision of existing single dwelling into two detached dwellings with two front porches and single rear extension, alterations to the roof and insertion of front dormers

    10 & 10A Hawkshead Lane North Mymms Hatfield AL9 7TB

    Received 23 Nov 2018
  17. Decided - Refused6/2024/1206/FULL

    Change of use from B2 (light industrial) to Class E (hot food preparation and delivery)

    Unit 25 Peartree Farm Welwyn Garden City AL7 3UW

    Received 27 Jun 2024
  18. Decided - GrantedS6/2009/1740/MA

    ERECTION OF TEACHING BUILDING COMPRISING OF 2120m² FLOORSPACE (USE CLASS D1) ASSOCIATED CAR PARKING AND LANDSCAPING

    UNIVERSITY OF HERTFORDSHIRE, DE HAVILLAND CAMPUS, MOSQUITO WAY, HATFIELD, HERTFORDSHIRE

    Received 14 Aug 2009
  19. Decided - GrantedN6/2009/0138/LU

    CERTIFICATE OF LAWFULNESS FOR PROPOSED ALTERATIONS TO ROOF INCLUDING HIPPED TO GABLE AND REAR DORMER

    33 Great North Road Welwyn Garden City AL8 7TJ

    Received 23 Jan 2009
  20. Decided - Granted6/2024/2251/PN10

    Prior approval for a change of use from agricultural building to one dwellinghouse

    7 Normans Lane Welwyn AL6 9TQ

    Received 25 Nov 2024
  21. Decided6/2025/1825/TC

    Reduce 1 x Hornbeam to by 3m height and 2m width Reduce to retain suitable size & shape for garden

    26 Sheepcote Welwyn Garden City AL7 4QD

    Received 27 Aug 2025
  22. Decided - Granted6/2018/2226/COND

    Submission of details pursuant to condition 5 (bat survey) on planning permission 6/2018/0337/FULL

    7 Lanercost Close Welwyn AL6 0RW

    Received 28 Aug 2018
  23. Decided - Refused6/2021/1395/EM

    Erection of first floor rear extension

    68 Peartree Lane Welwyn Garden City AL7 3UH

    Received 30 Apr 2021
  24. Appeal Decided - Split6/2017/1325/HOUSE

    Retention of timber boundary fence part 1.72m high and retention of glazed balustrade 1.12m high

    10 Reeves Court Welwyn AL6 9FU

    Received 20 Jun 2017

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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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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