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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
40,295Searchable applications
322Recorded as pending
86%Approval rate · 33,786 approved or refused records
4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2019/1844/LAWP

    Certificate of lawfulness for the erection of a two storey rear extension

    Bury Lodge Digswell Lane Welwyn AL6 0SN

    Received 25 Jul 2019
  2. Decided - RefusedN6/2013/1829/TP

    Crown lift to 8m Corsican Pines T1, T2 and T3 covered by TPO 242

    Land at 34a & 34b Hertford Road Digswell Welwyn AL6 0DB

    Received 8 Aug 2013
  3. Decided - GrantedN6/2006/0275/FP

    ERECTION OF REAR CONSERVATORY

    16 The Squirrels Welwyn Garden City AL7 2JH

    Received 2 Mar 2006
  4. Decided - Granted6/2019/1717/HOUSE

    Erection of a single storey rear extension

    5 Mimram Walk Welwyn AL6 9EZ

    Received 10 Jul 2019
  5. Decided - Split6/2019/2620/COND

    Submission of details pursuant to condition 1 (plant and equipment noise) and 2 (cycle parking) on planning permission 6/2019/2000/FULL

    6 City Park Swiftfields Welwyn Garden City AL7 1LY

    Received 18 Oct 2019
  6. Decided - GrantedN6/2013/0722/FP

    Replacement of two windows with fire doors and erection of bin and buggy stores

    Trevelyn House, Church Road, WELWYN GARDEN CITY, AL8 6PR

    Received 5 Apr 2013
  7. Decided - Granted6/2016/1231/EM

    Replacement of windows

    9 Marsden Close, Welwyn Garden City, AL8 6YE

    Received 20 Jun 2016
  8. Decided - Granted6/2017/0827/TPO

    Reduce Hawthorn tree by upto 60% - Conservation Area

    17 Hillside Welwyn Garden City AL7 4PZ

    Received 21 Apr 2017
  9. Decided - Split6/2015/1946/COND

    Approval of details reserved by condition 3 (materials), 5 (privacy screens) and 6 (specification of external materials) on planning permission 6/2016/0011/VAR

    The Frythe, 5 Digswell Hill, Welwyn, AL6 9AR

    Received 16 Sept 2015
  10. Decided - Granted6/2019/1940/FULL

    Erection of 1x dwelling following the demolition of existing portal framed storage building (Class B8)

    Cuffley Hills Barn, The Ridgeway, Cuffley, EN6 4AY

    Received 7 Aug 2019
  11. Decided - Refused6/2015/2204/OUTLINE

    Outline planning permission for the erection of 1no two bedroom bungalow with approval sought for access and layout

    Rear of 10 Parsonage Road, North Mymms, Hatfield, AL9 7LS

    Received 28 Oct 2015
  12. Decided - Granted6/2025/0623/HOUSE

    Retention of a single storey rear extension

    5 Booths Close Welham Green Hatfield AL9 7NW

    Received 31 Mar 2025
  13. Decided - Granted6/2019/2082/FULL

    Erection of building (Use Class B1(a)/B8) following demolition of existing building (Use Class B2)

    Unit 4A, Travellers Lane, Welham Green, Hatfield, AL9 7HF

    Received 19 Aug 2019
  14. Decided - Granted6/2021/3475/HOUSE

    Alterations to ground floor layout and proposed first floor extension

    9 Codicote Road Welwyn AL6 9ND

    Received 13 Dec 2021
  15. Decided - Granted6/2022/1037/HOUSE

    Replacement of rear flat roof with hipped roof and increase in width of rear dormer

    11 Turpins Chase Welwyn Hertfordshire AL6 0QZ

    Received 4 May 2022
  16. Decided - Granted6/2020/1838/TPO

    Reduce 1 x Oak Tree [ T1] by 40% around 4m covered by TPO 671 (2017)

    Rivendell 13C Oaklands Rise Welwyn AL6 0RN

    Received 27 Jul 2020
  17. Decided - Granted6/2024/1883/EM

    Installation of electric car charging point to the left of my porch

    133 Handside Lane Welwyn Garden City AL8 6TA

    Received 30 Sept 2024
  18. Decided - GrantedS6/2015/1111/FP

    Erection of single storey rear extension and single storey side extension with internal alterations and loft conversion

    12 Woodgate Avenue Northaw Potters Bar EN6 4EW

    Received 27 May 2015
  19. Decided - Split6/2026/0518/COND

    Submission of details pursuant to Condition 2 (Archaeological Works) on planning permission 6/2024/2418/MAJ

    26 Station Road Welham Green Hatfield AL9 7PG

    Received 20 Mar 2026
  20. Decided - Granted6/2024/1775/LAWP

    Certificate of lawfulness for garage conversion into habitable space

    28 Great North Road Welwyn AL6 0PS

    Received 13 Sept 2024
  21. Decided - RefusedN6/2009/1025/FP

    CHANGE OF USE FROM (A1) RETAIL TO (D1) VETERINARY CLINIC WITH ANCILLARY PET HEALTHCARE PRODUCT SALES

    160 HOLLYBUSH LANE, WELWYN GARDEN CITY, HERTS, AL7 4JU

    Received 14 May 2009
  22. Decided - GrantedN6/2013/2071/FP

    Erection of single storey front and rear extensions

    42 Barleycroft Road, Welwyn Garden City, AL8 6JU

    Received 24 Sept 2013
  23. Decided - Granted6/2017/1746/COND

    Submission of details pursuant to condition 10 (written scheme of investigation) on planning permission S6/2015/1061/MA dated 05.11.2015

    Plot 6000 Hatfield Business Park Hatfield Avenue Hatfield AL10 9UA

    Received 7 Aug 2017
  24. Decided - Refused6/2023/0182/COND

    Submission of details pursuant to condition 1 (landscaping) on planning permission 6/2022/2357/HOUSE

    59 Northaw Road West Northaw Potters Bar EN6 4NP

    Received 25 Jan 2023

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

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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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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