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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
32,138Searchable applications
303Recorded as pending
87%Approval rate · 26,871 approved or refused records
3,519Refused applications

23,352 approved · 3,519 refused · 1,690 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 20 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2025/2081/PN10

    Prior approval for a change of use of agricultural buildings to 2 dwellings

    Postern Gate Farm Newgate Street Village Hertford SG13 8QR

    Received 1 Oct 2025
  2. Decided - Granted6/2025/0791/EMT

    1x Leyland cypress to prune back to boundary line over 54 Chequers to clear 5m from ground level. To reduce remaining crown overhang by up to 1m to live growth points.

    56 Chequers Welwyn Garden City AL7 4SJ

    Received 28 Apr 2025
  3. Decided - Granted6/2021/1609/EMT

    Fell 1 x Bay tree, 1 x Cherry tree and 1 x Plum tree

    5 Scotts View Welwyn Garden City AL8 6HF

    Received 19 May 2021
  4. Decided - Granted6/2023/2299/HOUSE

    Retention of an existing conservatory (retrospective)

    72 Wellington Drive Welwyn Garden City AL7 2NB

    Received 14 Nov 2023
  5. Decided - Granted6/2015/2095/FULL

    Erection of single storey porch to south west elevation

    City Park, Swiftfields, Welwyn Garden City, AL7 1LY

    Received 8 Oct 2015
  6. Decided - Granted6/2021/2536/HOUSE

    Erection of single storey rear extension

    20 Coppice Close Hatfield AL10 9EF

    Received 31 Aug 2021
  7. Decided - Granted6/2016/1556/FULL

    Retention of ancillary COSHH storage area and silencers to the roof plant

    University of Hertfordshire, Bishops Rise, Hatfield, AL10 9BT

    Received 29 Jul 2016
  8. Decided - Refused6/2020/1812/HOUSE

    Erection of a single storey rear and first floor side extension following the conversion of the existing car port

    18A London Road Woolmer Green SG3 6JP

    Received 23 Jul 2020
  9. Decided6/2025/2146/TC

    T1 – Poplar (approx. 30m tall) located to the rear of the property within 10m of the boundary. Proposed work: Fell and remove to ground level including stump treatment to prevent regrowth T2 – Poplar (approx. 30m tall) located along the rear boundary adjacent to neighbouring gardens. Proposed work: Fell and remove to ground level including stump treatment to prevent regrowth T3 – Wild Plum (approx. 20m tall) located near the rear boundary fence within 10m of neighbouring property This tree is intertwined and intergrown with the T2 Poplar and cannot be separated safely. Proposed work: Fell and remove both the Wild Plum and adjoining Poplar (T2) to ground level, with stump treatment to prevent regrowth.

    127 Sweet Briar Welwyn Garden City AL7 3EB

    Received 8 Oct 2025
  10. Decided - Granted6/2025/1087/EM

    Widening and resurfacing of existing concrete drive with shingle

    31 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 9 Jun 2025
  11. Decided - Granted6/2023/1782/EMT

    Fell 1 x Cypress tree to front boundary due to damage caused by root network. This will be replaced with a boundary hedgerow

    156 Parkway Welwyn Garden City AL8 6HZ

    Received 25 Aug 2023
  12. Decided - Granted6/2019/1024/LAWP

    Certificate of lawfulness for the insertion of 3 x rear facing roof lights and a roof lantern into existing flat roof

    10 Parkfields Welwyn Garden City AL8 6ED

    Received 29 Apr 2019
  13. Appeal Decided - Allowed6/2017/0848/MAJ

    Erection of 72 residential units consisting of 46 houses (12 x 3 bed and 34 x 4 bed) and 26 flats (4 x 1 bed and 22 x 2 bed), 657 sqm retail floor space (A1) and 485.1 sqm office floor space (B1)a)) with associated landscaping, parking and infrastructure, involving demolition of existing industrial (B2) buildings and residential units.

    Entech House London Road Woolmer Green Knebworth SG3 6JE

    Received 24 Apr 2017
  14. Decided - Granted6/2024/1554/FULL

    Erection of a dwellinghouse with attached double garage and alterations to existing access from Carbone Hill

    Land adjacent to Woodvale 1 Carbone Hill Northaw Potters Bar EN6 4PJ

    Received 15 Aug 2024
  15. Decided - Granted6/2025/1302/VAR

    Variation of condition 1 (approved plans) & condition 6 (Ecological enhancements) on planning permission 6/2024/0551/FULL

    Land adjacent to Bell Lane Bell Bar The Brookmans Park Estate AL9 7AY

    Received 20 Jun 2025
  16. Decided - Granted6/2019/2894/COND

    Submission of details pursuant to condition 1 (Sample of materials) on planning permission 6/2018/0251/HOUSE

    13 Moorend Welwyn Garden City AL7 4QL

    Received 14 Nov 2019
  17. Decided - GrantedN6/2013/1331/DS

    Discharge of condition 2 (Programme of works) from planning application N6/2013/0264/CA

    3 Forge Lane Welwyn AL6 9NA

    Received 20 Jun 2013
  18. Decided - Granted6/2022/1227/HOUSE

    Erection of single storey rear/side extension with rooflight and part two storey rear extension following demolition of garage

    3 Salisbury Road Welwyn Garden City AL7 3RR

    Received 25 May 2022
  19. Decided - Refused6/2024/1797/COND

    Submission of details pursuant to Condition 1 (schedule of works and repairs methodology) on Listed Building consent 6/2022/0867/LB

    The Hope And Anchor 2 Station Road Welham Green AL9 7PJ

    Received 18 Sept 2024
  20. Decided - Granted6/2017/2111/LAWP

    Certificate of lawfulness for the erection of single storey rear extension

    11 Elm Drive Hatfield AL10 8NR

    Received 19 Sept 2017
  21. Decided - Granted6/2017/1704/HOUSE

    Erection of a part single storey rear extension and installation of 1 rooflight

    7 Parkway Gardens Welwyn Garden City AL8 6JW

    Received 3 Aug 2017
  22. Decided - GrantedS6/2014/0490/LUP

    Certificate of lawfulness for the proposed erection of single storey rear extension

    46 Pine Grove, Brookmans Park, Hatfield, AL9 7BS

    Received 10 Mar 2014
  23. Decided - GrantedW6/2015/1274/EM

    Installation of a detached timber garden room

    68 Brockswood Lane Welwyn Garden City AL8 7BQ

    Received 16 Jun 2015
  24. Decided - Granted6/2025/2057/EMT

    1 x Apple to reduce by approximately 2m height & width. 1 x Holly to reduce by 2.5m.

    4 High Grove Welwyn Garden City AL8 7DW

    Received 25 Sept 2025

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

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

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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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