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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
24,491Searchable applications
313Recorded as pending
86%Approval rate · 20,067 approved or refused records
2,778Refused applications

17,289 approved · 2,778 refused · 1,284 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/1723/LAWP

    Certificate of lawfulness for a single storey rear extension

    7 Garden Close Knebworth SG3 6JF

    Received 1 Jun 2021
  2. Decided - Refused6/2020/1432/HOUSE

    Erection of first floor rear extension

    21 Bluebridge Road Hatfield AL9 7UW

    Received 19 Jun 2020
  3. Decided6/2018/2352/TPO

    To fell 1x Ash (T1) -Conservation area

    Digswell Lodge 2 Digswell Rise Welwyn Garden City AL8 7NU

    Received 14 Sept 2018
  4. Decided - Withdrawn6/2022/1907/LB

    Erection of single bridge over the leat to the River Lea, following removal of two existing bridges and erection of balustrade to river terrace

    Bush Hall Hotel Chequers Hatfield AL9 5NT

    Received 16 Aug 2022
  5. Decided - Granted6/2016/2262/LAWE

    Certificate of lawfulness for use of the kennel maids' accommodation at Bayford Kennels as a separate dwellinghouse ocupied by people not employed at Bayford Kennels.

    Bayford Kennels White Stubbs Lane Bayford Hertford SG13 8QA

    Received 28 Oct 2016
  6. Decided - Granted6/2022/0727/EMT

    Lime tree x1 - re-pollard

    11 Little Youngs Welwyn Garden City AL8 6SL

    Received 28 Mar 2022
  7. Decided6/2017/2055/TPO

    Crown Reduce by 30% and deadwood 2x Oak (T1 & T2) - Conservation Area

    6 Mandeville Rise Welwyn Garden City AL8 7JU

    Received 12 Sept 2017
  8. Decided - Granted6/2024/1529/HOUSE

    Erection of single storey front extension

    89 Wellcroft Road Welwyn Garden City AL7 3JX

    Received 12 Aug 2024
  9. Decided - Granted6/2020/2473/EM

    Alterations to existing openings on rear elevation, to include insertion of french doors

    8 Warren Dale Welwyn Garden City AL8 7HN

    Received 28 Sept 2020
  10. Decided - Granted6/2017/2143/FULL

    Sub-division of existing 5-bedroom house to form 2 x 2-bedroom house, including new front door.

    4 Somers Square Welham Green Hatfield AL9 7PS

    Received 22 Sept 2017
  11. Decided - Granted6/2020/0030/EM

    Crown Reduce T1 Pear tree by 30% Removal of lowest limb over 4 Youngs Rise on T2 Chesnut Prune Laurel hedge by 10% T3 Prune Holly Hedge by 10% T4

    6 Youngs Rise Welwyn Garden City AL8 6RU

    Received 3 Jan 2020
  12. Decided - Granted6/2018/1788/EM

    Replacement of front door and garage door

    330 Knightsfield Welwyn Garden City AL8 7NQ

    Received 9 Jul 2018
  13. Decided - Granted6/2016/1286/FULL

    Erection of three detached dwelling houses following the demolition of the existing dwelling house.

    19 Briary Wood Lane Welwyn AL6 0TE

    Received 27 Jun 2016
  14. Decided - Granted6/2018/1851/HOUSE

    Installation of front and side dormers to facilitate roof alterations and recessed rear terrace with balustrade. Erection of a front porch. Replacement front windows and doors. Alterations to windows and doors

    18 Mardley Avenue Welwyn AL6 0UD

    Received 16 Jul 2018
  15. Decided - Granted6/2023/2279/EM

    Installation of an Air Source Heat Pump at front of property. Hawthorn hedge to reduce by 50% to create space

    239 Daniells Welwyn Garden City AL7 1QD

    Received 13 Nov 2023
  16. Decided - Granted6/2021/1344/EM

    Erection of log cabin at rear of garden

    78 Oakdale Welwyn Garden City AL8 7QZ

    Received 26 Apr 2021
  17. Decided - Granted6/2020/1871/HOUSE

    Erection of a single storey side extension

    89 Lemsford Road Hatfield AL10 0DZ

    Received 29 Jul 2020
  18. Decided - Refused6/2017/1764/PN11

    Prior approval for the change of use from Office (B1 (a)) to a Dwellinghouse (C3)

    Second Floor 4 York House Wigmores South AL8 6PL

    Received 9 Aug 2017
  19. Decided6/2020/2583/TC

    Reduce 1 x Scots Pine tree rear limb by 1.5m in height and width, lift lower canopy by 0.5m. Reduce 2 x Apple trees by 1.5m height and 1m width. Reduce 1 x Pear tree by 1.5m height and 0.5m width covered by conservation area

    45 Fordwich Road Welwyn Garden City AL8 6EY

    Received 6 Oct 2020
  20. Decided6/2019/2928/TC

    Reduce 1 x Oak tree crown by 2m

    27 Reddings Welwyn Garden City AL8 7LA

    Received 19 Nov 2019
  21. Decided - Refused6/2021/0185/HOUSE

    Erection of a part single storey, part two storey rear extension and raising of the existing garage roof, following the demolition of the existing veranda and alterations to openings

    20 Beehive Green Welwyn Garden City AL7 4BG

    Received 21 Jan 2021
  22. Decided - Granted6/2021/1431/HOUSE

    Erection of single storey, part two storey side extension and a single storey, part two storey rear extension.

    7 The Brambles Welwyn AL6 0PG

    Received 6 May 2021
  23. Decided - Withdrawn6/2020/0820/EMT

    Reduce 1x Ash Tree by 30%

    125 Sweet Briar Welwyn Garden City AL7 3EB

    Received 30 Mar 2020
  24. Decided - Granted6/2023/0217/LAWP

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

    17 Crawford Road Hatfield AL10 0PF

    Received 30 Jan 2023

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

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    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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