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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
24,834Searchable applications
313Recorded as pending
86%Approval rate · 20,376 approved or refused records
2,807Refused applications

17,569 approved · 2,807 refused · 1,310 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2019/0634/HOUSE

    Erection of single storey front and two storey side extension following demolition of existing garage and front extension

    99 Robbery Bottom Lane Welwyn AL6 0UL

    Received 18 Mar 2019
  2. Decided - Granted6/2020/0139/EM

    Erection of conservatory following demolition of existing conservatory

    73 Uplands Welwyn Garden City AL8 7EH

    Received 20 Jan 2020
  3. Decided - Refused6/2024/1486/LB

    Proposal to increase door height and width by cutting the beam and installing new timber posts on the face of the wall

    6 Hall Grove Welwyn Garden City AL7 4PN

    Received 5 Aug 2024
  4. Decided - Granted6/2026/1013/HOUSE

    Erection of a single storey rear/side extension and garage conversion with alterations to the fenestration

    77 Holme Road Hatfield AL10 9LG

    Received 9 Jun 2026
  5. Decided - Refused6/2020/3057/LAWP

    Certificate of lawfulness for proposed Garage conversion and knock through

    20 Queens Avenue Welwyn Garden City AL7 4BZ

    Received 18 Nov 2020
  6. Decided - Granted6/2018/0705/LAWP

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

    11 Nursery Hill Welwyn Garden City AL7 1UE

    Received 15 Mar 2018
  7. Appeal Decided - Dismissed6/2021/1107/HOUSE

    Erection of a single storey rear extension, a two storey rear, front and side extension, a roof extension and insertion of a rear box dormer.

    379 St Albans Road West Hatfield AL10 9RU

    Received 6 Apr 2021
  8. Decided - Granted6/2017/0776/LAWP

    Certificate of lawfulness for the conversion of garage to habitable space

    17 Briary Wood Lane Welwyn AL6 0TE

    Received 18 Apr 2017
  9. Decided - Granted6/2019/1030/TPO

    Reduce 1 x Yew trees by 2 to 3 metres covered by TPO 556 (2016)

    16 The Green Welwyn AL6 9EA

    Received 29 Apr 2019
  10. Decided - Granted6/2018/1997/LAWP

    Certificate of lawfulness for the formation of a hardstanding which utilises the existing access and dropped kerb

    53 High Road Essendon Hatfield AL9 6HS

    Received 30 Jul 2018
  11. Decided - Granted6/2023/1021/EMT

    Fell 1 Leyland cypress tree to ground level.

    65 Valley Road Welwyn Garden City AL8 7DR

    Received 15 May 2023
  12. Decided - Granted6/2020/1152/TPO

    Reduce 1 x Oak TPO 646 (2017) T1 by 20% Reduce 1 x Hornbeam TPO 646 (2017) T2 by 25%

    4 Firway Welwyn AL6 0RD

    Received 18 May 2020
  13. Decided - Granted6/2022/1380/RM

    Application for the approval of reserved matters (appearance, means of access, landscaping, layout, and scale) following the grant of Outline permission on application 6/2020/2814/OUTLINE for the erection of two dwellings.

    9 Sycamore Avenue Hatfield AL10 8LZ

    Received 15 Jun 2022
  14. Decided - Granted6/2022/2322/EMT

    Dead or dying mature Ash tree - to fell to ground level. The tree appears to be suffering from Ash die back or similar disease. In June 2016 a large branch fell from the tree, directly on to our car on the drive below, crushing the car (witten off) now appears to becoming a danger to property and even to life

    4 Elmwood Welwyn Garden City AL8 6LE

    Received 5 Oct 2022
  15. Decided6/2025/1680/TC

    Mixed plums to reduce by 2m in height and 2.5m in width, reduce to clear house by 1.5m, lift over pathway to 2.5m

    53 Longcroft Gardens Welwyn Garden City AL8 6JR

    Received 5 Aug 2025
  16. Decided - Granted6/2025/2241/COND

    Submission of details pursuant to condition 22 (Noise Impact Assessment), on planning permission 6/2021/3367/MAJ

    Ludwick Green Ludwick Way Welwyn Garden City AL7 3QN

    Received 23 Oct 2025
  17. Decided - Granted6/2016/2351/LAWP

    Certificate of lawfulness for a garage conversion

    25 Homewood Avenue Cuffley Potters Bar EN6 4QQ

    Received 8 Nov 2016
  18. Decided - Granted6/2025/1384/EMT

    1 x Ash to remove in sections to ground level, The tree is becoming too large for the space provided. It's largely hanging over 2 neighbours causing a nuisance to both. While not advance, Ash dieback is present

    42 Marsden Green Welwyn Garden City AL8 6YB

    Received 2 Jul 2025
  19. Decided - Granted6/2022/2224/HOUSE

    Erection of proposed front extension

    7 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 26 Sept 2022
  20. Decided6/2024/2139/TC

    1 x Hazel to reduce by approximately 2m in height and 1.2m in width. This is in order to maintain size and shape Retrospective: 1 x Goat Willow to remove in sections to ground level. This is due to the proximity to boundary and its causing a nuisance to neighbours

    48 Valley Road Welwyn Garden City AL8 7DN

    Received 6 Nov 2024
  21. Decided - Granted6/2017/0999/HOUSE

    Erection of a first floor side and part rear extension

    4 Peplins Close Brookmans Park Hatfield AL9 7UX

    Received 9 May 2017
  22. Decided - Granted6/2018/1449/HOUSE

    Erection of single storey rear extension

    25 Cecil Crescent Hatfield AL10 0HF

    Received 30 May 2018
  23. Decided - Granted6/2024/1773/HOUSE

    Erection of part single, part two storey side extension following the demolition of the existing conservatory and alterations to openings

    3 The Crest Welwyn AL6 0EF

    Received 12 Sept 2024
  24. Decided - Granted6/2022/0207/EM

    Extending existing hardstanding

    132 Howlands, Welwyn Garden City, AL7 4RG

    Received 28 Jan 2022

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 permission drawings: how to read plans

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  • Property research · 13 min read

    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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