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England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
37,609Searchable applications
335Recorded as pending
86%Approval rate · 31,380 approved or refused records
4,389Refused applications

26,991 approved · 4,389 refused · 2,030 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 26 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/1284/LAWP

    Certificate of lawfulness for the proposed conversion of garage to habitable use, to include 2 no. rooflights to the front roof slope and 1 no. rooflight to the rear roof slope and new porch to the front elevation.

    178 Dragon Road Hatfield AL10 9NZ

    Received 20 Jun 2023
  2. Decided - GrantedS6/2014/0397/LUP

    Certificate of lawfulness for erection of single storey rear extension

    20 Daffodil Close Hatfield AL10 9FF

    Received 24 Feb 2014
  3. Decided - Refused6/2016/2396/TPO

    Fell Sorbus Whitebeam tree - Conservation Area

    10 Fordwich Road Welwyn Garden City AL8 6EY

    Received 9 Nov 2016
  4. Decided - GrantedW6/2015/0252/EM

    Installation of side gate

    143 Parkway, Welwyn Garden City, AL8 6JB

    Received 9 Feb 2015
  5. Decided - Refused6/2018/1918/FULL

    Erection of 3 storey rear extension reconfiguration of existing building for B1 use and associated works

    68 Great North Road Hatfield AL9 5ER

    Received 20 Jul 2018
  6. Decided - Granted6/2022/1155/EM

    Alterations to rear openings

    33 Crossway Welwyn Garden City AL8 7ED

    Received 19 May 2022
  7. Decided - Granted6/2016/1576/HOUSE

    Erection of two storey rear extension and front porch

    7 Barfolds, Welham Green, Hatfield, AL9 7NG

    Received 2 Aug 2016
  8. Decided - Granted6/2018/3161/HOUSE

    Erection of first floor front, part single part two storey rear extension, partial garage conversion and alterations to openings

    30 Heather Road Welwyn Garden City AL8 6XU

    Received 11 Dec 2018
  9. Decided - Granted6/2025/1325/EMT

    T1 Blue cedar reduce by 33%, cutting back to previous pruning cuts and balance; T2 Copper beech reduce by approximately 33%, cutting back to previous pruning cuts and balance; and T3 Pollard willow tree

    1 Stonemead Welwyn Garden City AL8 7LX

    Received 25 Jun 2025
  10. Decided - Refused6/2017/2951/COND

    Submission of details pursuant to condition 3 (archaeological scheme of investigation) on planning permission 6/2017/2342/FULL, dated 20/12/2017

    Plot 4100 Gypsy Moth Avenue Hatfield Business Park Hatfield AL10 9UH

    Received 21 Dec 2017
  11. Decided - Granted6/2021/2337/HOUSE

    Erection of single storey side and rear extension and alterations to openings, including insertion of roof light into the rear elevation of existing roof.

    9 Chalk Dale Welwyn Garden City AL7 2AP

    Received 6 Aug 2021
  12. Decided - GrantedS6/2008/2170/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION TO EXISTING GARAGE

    PENNINGTON, 30 CARBONE HILL, NORTHAW, POTTERS BAR, HERTFORDSHIRE, EN6 4PN

    Received 13 Nov 2008
  13. Decided - Granted6/2021/0510/TPO

    Fell T4 Sweet Chestnut, T6 Hornbeam and T8 Hornbeam and reduce T5, T16 Oak tree and T17, T18 Chestnut by 3-4m

    2 Copse Hill Welwyn AL6 0SG

    Received 16 Feb 2021
  14. Decided - Granted6/2018/2269/LAWP

    Certificate of proposed lawful use of land to station a Mobile Home/ family annexe for use incidental to main dwelling house

    19 Mardleybury Farm Mardleybury Road Woolmer Green Knebworth SG3 6SG

    Received 5 Sept 2018
  15. Decided - Granted6/2023/1055/HOUSE

    Proposed construction of part pitch roof over existing flat roof to existing garage and enlargement of rear ground floor window

    41 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 18 May 2023
  16. Decided - Split6/2023/0093/COND

    Submission of details pursuant to condition 19 (Details of Public Cycle parking) on planning permission 6/2018/0171/MAJ

    Former Shredded Wheat Factory Welwyn Garden City AL8 6UN

    Received 13 Jan 2023
  17. Decided - RefusedN6/2015/0232/FP

    Loft conversion incorporating four dormer windows, one rooflight following removal of one chimney

    31 Digswell Road, Welwyn Garden City, AL8 7PB

    Received 4 Feb 2015
  18. Decided - GrantedW6/2014/1927/TE

    Reduce Oak tree crown by 2-3 metres and removal of lower branches to a height of 5-6 metres plus clean to remove all dead, diseased and broken branches

    10 Holly Walk, Welwyn Garden City, AL8 7EJ

    Received 28 Aug 2014
  19. Decided6/2021/3309/TC

    Reduction of Silver Birch by 3m in height & 1.5m in width and reduction of Robinia by 4m in height & 2m in width

    2 Holly Hall Court Church Street Welwyn AL6 9LH

    Received 23 Nov 2021
  20. Decided - Granted6/2022/1291/HOUSE

    Ground floor infill extension and replace window with patio doors

    43 Longmead Hatfield AL10 0AB

    Received 1 Jun 2022
  21. Decided - Granted6/2019/1742/FULL

    Change of use of outbuildings from storage and light industrial use to ancillary residential accommodation.

    39 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 15 Jul 2019
  22. Decided - Granted6/2024/2015/HOUSE

    Erection of single storey rear extension following demolition of existing conservatory and bay window

    3 Osborne Court Osborne Road Little Heath Potters Bar EN6 1SX

    Received 21 Oct 2024
  23. Appeal Decided - AllowedW6/2008/2468/EM

    ERECTION OF TWO STOREY SIDE & REAR EXTENSION

    8 Valley Road Welwyn Garden City AL8 7DF

    Received 22 Dec 2008
  24. Decided - GrantedN6/2013/1621/FP

    Erection of two storey rear and single storey rear & side extensions

    16 Sherrardspark Road, Welwyn Garden City, AL8 7JP

    Received 30 Jul 2013

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

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Researching a proposal in Welwyn Hatfield Borough Council

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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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