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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
22,951Searchable applications
313Recorded as pending
86%Approval rate · 18,694 approved or refused records
2,632Refused applications

16,062 approved · 2,632 refused · 1,183 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/2024/HOUSE

    Erection of first floor loft conversion including installation of 3 x front and 2 x rear dormers, alterations to openings and pitched roof to existing garage

    28 King James Avenue Cuffley Potters Bar EN6 4LR

    Received 2 Aug 2018
  2. Decided - Granted6/2024/2389/TPO

    5 DAY NOTICE - All trees covered by TPO 877 (2023) W1. T1. Beech to fell (hollow at base, cavities and significant decay progression) T2. Beach to fell (dead) T3. Beech to fell/monolith (decay) T4. Beech to remove remaining crown and reduce stem by a further 2/3m (previously failed).

    Land at Digwell Lakes, A1000 Bessemer Road or Digswell Park Road, Welwyn Garden City, AL6 0ST

    Received 13 Dec 2024
  3. Decided - Granted6/2022/2682/LAWP

    Certificate of lawfulness for loft conversion with hip to gable to include rear dormer with juliet balcony, two front rooflights and one first floor side elevation window.

    20 Crawford Road Hatfield Hertfordshire AL10 0PG

    Received 24 Nov 2022
  4. Decided - Refused6/2018/1395/PN8

    Prior approval for the erection of single storey rear extension measuring 5m in depth, 3.3m in height, 2.3m to the eaves

    6 Worcester Road Hatfield AL10 0DX

    Received 21 May 2018
  5. Decided - Granted6/2024/0165/LAWP

    Certificate of lawfulness for removal of chimney stack to front and installation of two side facing Velux windows

    20 Canonsfield Road Welwyn AL6 0QH

    Received 29 Jan 2024
  6. Decided - Granted6/2023/1317/EMT

    2 x Fir trees to fell (Chamaecyparis Ellwoodii)

    17 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 26 Jun 2023
  7. Decided - Refused6/2017/2122/HOUSE

    Erection of a single and part two story rear extension following part rear demolition

    11 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 20 Sept 2017
  8. Decided - Granted6/2023/0502/COND

    Submission of details pursuant to the discharge of condition 16 (anti social behaviour) and 17 (car parking) on planning permission 6/2021/2207/MAJ

    Campus West The Campus Welwyn Garden City AL8 6BX

    Received 6 Mar 2023
  9. Decided - Refused6/2018/1831/EM

    Erection of a part two storey, part first floor rear extension

    4 Coneydale Welwyn Garden City AL8 7RY

    Received 12 Jul 2018
  10. Decided - Granted6/2021/3151/HOUSE

    Erection of a part two storey, part single storey rear extension involving demolition of existing conservatory

    61 Holme Road Hatfield AL10 9LG

    Received 4 Nov 2021
  11. Decided - Granted6/2021/2697/TPO

    Crown to reduce by 20% and T3, T4 and T5 lime and remove dead wood

    The Vicarage 48 Parkway Welwyn Garden City AL8 6HH

    Received 17 Sept 2021
  12. Decided - Granted6/2020/1337/TPO

    Reduce 1x Cedar tree by 3m (T1) covered by TPO 668 (2017)

    3 Adele Avenue Digswell Welwyn AL6 0AU

    Received 12 Jun 2020
  13. Appeal Decided - Dismissed6/2021/3157/FULL

    Change of use from amenity to residential land with the formation of a hardstanding and new access.

    4 Coningsby Close Welham Green Hatfield AL9 7PU

    Received 4 Nov 2021
  14. Decided - Granted6/2019/1039/EM

    Fell 2 x Silver Birch trees Remove deadwood from 1 x Oak tree

    Coopers Grill House 3 Beehive Lane Welwyn Garden City AL7 4BW

    Received 29 Apr 2019
  15. Decided - Granted6/2024/2116/PN10

    Prior approval for the change of use of agricultural building to dwelling

    Tolmers Park Farm Newgate Street Village Hertford SG13 8RG

    Received 4 Nov 2024
  16. Decided - Granted6/2018/1108/HOUSE

    Installation of velux window in roof for ventilation purposes

    13 Danesbury Park North Ride Welwyn AL6 9SA

    Received 27 Apr 2018
  17. Decided - Granted6/2025/1657/EM

    Erection of a single storey rear & side extension

    11 Crookhams Welwyn Garden City AL7 1PG

    Received 31 Jul 2025
  18. Decided - Granted6/2026/0010/EM

    The proposed works include the replacement of several windows, the removal of an external door, and the addition of a chicken coop and run

    22 Elm Gardens Welwyn Garden City AL8 6RY

    Received 5 Jan 2026
  19. Decided - Granted6/2017/1651/FULL

    Erection of entrance pods to Unit 1 & 2

    The Beacons Beaconsfield Road Hatfield AL10 8RS

    Received 27 Jul 2017
  20. Decided - Granted6/2018/1802/COND

    Submission of details pursuant to condition 7 (external lighting) on planning permission 6/2018/0285/MAJ

    3 - 14 Bridgefields Welwyn Garden City AL7 1RX

    Received 6 Jul 2018
  21. Decided - Granted6/2018/0711/LAWE

    Certificate of lawfulness for the change of use from workshop to self contained dwelling

    Ponsbourne Grange Ponsbourne Park Newgate Street Hertford SG13 8QS

    Received 15 Mar 2018
  22. Decided - Granted6/2018/2543/HOUSE

    Erection of single storey rear and two storey side extension following demolition of rear and side conservatories

    12 Mardley Wood Welwyn AL6 0UX

    Received 3 Oct 2018
  23. Decided - Granted6/2021/3011/HOUSE

    Erection of single storey front extension

    11 Copper Beeches Welwyn AL6 0SS

    Received 20 Oct 2021
  24. Decided - Withdrawn6/2017/1385/EM

    Removal of Himalayan Birch tree

    180 Handside Lane Welwyn Garden City AL8 6SZ

    Received 12 May 2017

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

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    Planning application documents: what to read first

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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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