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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
22,950Searchable applications
313Recorded as pending
86%Approval rate · 18,693 approved or refused records
2,632Refused applications

16,061 approved · 2,632 refused · 1,183 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/2733/HOUSE

    Erection of single storey rear and side extensions with extension to porch

    4 Bader Close Welwyn Garden City AL7 2NA

    Received 29 Dec 2016
  2. Decided - Granted6/2023/2364/VAR

    Variation of condition 16 (Plan Numbers) for planning permission 6/2021/0559/VAR

    Mulberry Manor 63 New Road Digswell Welwyn AL6 0AL

    Received 23 Nov 2023
  3. Decided - Refused6/2024/1043/HOUSE

    Replacement of 7 sliding sashes to existing frames and the full replacement of 2 sash windows. Replacement of 4 windows casement eaves only to existing frames and the full replacement of 6 casement windows and the full replacement of 2 doors

    13 Fore Street Hatfield AL9 5AN

    Received 5 Jun 2024
  4. Decided - Granted6/2017/0106/HOUSE

    Erection of single storey rear extension

    110 Mill Green Road Welwyn Garden City AL7 3XE

    Received 23 Jan 2017
  5. Decided - Granted6/2020/2996/HOUSE

    Erection of a detached garage

    48 Poppyfields Welwyn Garden City AL7 2HJ

    Received 13 Nov 2020
  6. Decided - Granted6/2018/2664/LB

    Erection of single storey side extension and raising height of existing east elevation wall

    The Manor House Hill Farm Lane Ayot St Lawrence AL6 9BP

    Received 17 Oct 2018
  7. Decided - Granted6/2019/2272/VAR

    Variation of condition 9 (Drawings) on listed building consent 6/2018/3055/LB

    Bush Hall Hotel Chequers Hatfield AL9 5NT

    Received 13 Sept 2019
  8. Decided - Refused6/2018/1828/HOUSE

    Changes to existing detached garage including: increase in height; erection of dormers; erection of canopies; installation of roof-lights; alterations to openings and external appearance, to facilitate its conversion into ancillary residential use.

    31 - 33 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 11 Jul 2018
  9. Decided - Granted6/2017/1949/TPO

    Removal of Chestnut tree covered by TPO 554 (2016) - Dead and Dangerous

    Essendon House Church Street Essendon Hatfield AL9 6AR

    Received 31 Aug 2017
  10. Decided - Granted6/2025/0604/HOUSE

    Erection of single storey rear extension

    177 Howlands Welwyn Garden City AL7 4RL

    Received 31 Mar 2025
  11. Decided - Refused6/2019/1967/HOUSE

    Erection of part single, part two-storey rear extension following demolition of garage

    6 Bennett Close Welwyn Garden City AL7 4JA

    Received 8 Aug 2019
  12. Decided - Granted6/2020/0427/EM

    Erection of a single storey rear extension

    9 Stoneycroft Welwyn Garden City AL7 1QU

    Received 14 Feb 2020
  13. Decided - Granted6/2021/2700/HOUSE

    Erection of single storey rear extension, installation of ground floor windows to east and west side and partial enclosure of existing porch

    1 Somersham Welwyn Garden City AL7 2PZ

    Received 17 Sept 2021
  14. Decided6/2020/1117/TC

    Fell 1 x Sycamore

    Ayot Farm Bibbs Hall Lane Welwyn AL6 9BY

    Received 18 May 2020
  15. Decided - Granted6/2025/0435/VAR

    Variation of condition 1 (Construction Environmental Management Plan), 3 (External materials), 5 (Fire Hydrants), 6 (Offsite Highway Improvements), 7 (Landscape & Ecology Management Plan), 8 (Vehicular accesses), 10 (Car parking), 12 (Arboricultural Impact Assessment), 13 (Landscape details) and 20 (Approved plans and details) on planning permission 6/2023/0994/VAR

    Land between The Manor House and Witehall Field Cottage Essendon Hill Essendon AL9 6AJ

    Received 7 Mar 2025
  16. Decided - Withdrawn6/2020/3376/LB

    Erection of an outbuilding

    8 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

    Received 17 Dec 2020
  17. Decided - Granted6/2024/0332/HOUSE

    Erection of a single storey rear and side wrap around extension with rooflights following the demolition of the existing shed

    60 Salisbury Road Welwyn Garden City AL7 3SB

    Received 20 Feb 2024
  18. Decided - Granted6/2022/2757/HOUSE

    Installation of air sourced heat pump sited outside rear door

    12 Bakers Grove Welwyn Garden City AL7 2DQ

    Received 5 Dec 2022
  19. Decided - Refused6/2022/1055/HOUSE

    Erection of part two storey, part single storey side extension, first floor rear extension and front porch

    7 Birch Road Woolmer Green Hertfordshire SG3 6LW

    Received 5 May 2022
  20. Decided - Granted6/2017/1383/EM

    Erection of single storey and part two storey rear extension, with erection of new rear outbuildings following demolition of existing rear outbuilding

    127 Thistle Grove Welwyn Garden City AL7 4AG

    Received 26 Jun 2017
  21. Decided - Granted6/2021/2409/EM

    Insertion of a wooden front door

    28 Cypress Avenue Welwyn Garden City AL7 1HN

    Received 16 Aug 2021
  22. Decided - Refused6/2017/0706/HOUSE

    Erection of a part single/part two storey rear extension with 2no side roof lights and rear balcony and single storey front extensions, following demolition of an existing two storey rear extension and single storey front extension.

    23 Tolmers Gardens Cuffley Potters Bar EN6 4JE

    Received 7 Apr 2017
  23. Decided - Granted6/2023/2554/EMT

    T1 Sycamore to fell to ground level

    8 Sherrardspark Road Welwyn Garden City AL8 7JP

    Received 21 Dec 2023
  24. Decided - Granted6/2020/1818/COND

    Submission of details pursuant to condition 3 (public realm management plan) on planning permission 6/2019/0564/RM, dated 18/07/2019

    Land at Waterbeach Bericot Way and Shackleton Way Welwyn Garden City AL7 2PT

    Received 22 Jul 2020

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

All planning guides

  • Understanding planning · 13 min read

    Planning application documents: what to read first

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  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

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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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