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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
40,117Searchable applications
300Recorded as pending
86%Approval rate · 33,649 approved or refused records
4,801Refused applications

28,848 approved · 4,801 refused · 2,206 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/2231/FULL

    Replacement of existing windows in blocks E, F, G, H and J

    Oaklands College The Campus Welywn Garden City AL8 6AH

    Received 25 Oct 2016
  2. Decided - Granted6/2018/3215/HOUSE

    Erection of single storey rear extension, following demolition of existing rear extension

    61 Boundary Lane Welwyn Garden City AL7 4EG

    Received 18 Dec 2018
  3. Decided - Granted6/2017/2229/HOUSE

    Erection of a single storey rear extension following demolition of existing structure

    15 Chelwood Avenue Hatfield AL10 0RD

    Received 2 Oct 2017
  4. Decided - Granted6/2024/0524/LB

    Proposed alteration to fenestration to form double door opening

    4 Tolmers Mews Newgate Street Hertford SG13 8RG

    Received 18 Mar 2024
  5. Decided - Refused6/2023/2447/FULL

    Erection of new dwelling

    2 Copse Hill Welwyn AL6 0SG

    Received 5 Dec 2023
  6. Decided - Granted6/2020/3442/HOUSE

    Garage conversion into a habitable space, alteration to fenestration.

    9 Chalgrove Welwyn Garden City AL7 2QJ

    Received 23 Dec 2020
  7. Decided - GrantedS6/2014/2349/AD

    Installation of 5 signs including upgrading existing trough light with new LED trough light, projection sign internally illuminated and wall mounted panels and car park sign

    Co-operative Retail Services Ltd, Unit 1 Bishops Rise, Hatfield, AL10 9HE

    Received 23 Oct 2014
  8. Decided - GrantedW6/2013/2373/TE

    Reduce Lime tree crown by 25%

    128 Handside Lane, WELWYN GARDEN CITY, AL8 6SZ

    Received 29 Oct 2013
  9. Decided - Granted6/2024/1099/EM

    Installation of a hardstanding

    82 Lumbards Welwyn Garden City AL7 1PL

    Received 13 Jun 2024
  10. Decided - GrantedN6/2014/1315/FP

    Retention of partial change of use of garage to form a new kitchen

    3 Oaken Grove, Welwyn Garden City, AL7 4FD

    Received 6 Jun 2014
  11. Decided - GrantedN6/2004/1045/FP

    ERECTION OF A SINGLE STOREY REAR EXTENSION

    4 Postfield Welwyn Garden City AL7 1NE

    Received 9 Jul 2004
  12. Decided - GrantedW6/2012/2649/TE

    Removal of Birch tree and crown thin Hornbeam tree by upto 30%

    24 Mandeville Rise, WELWYN GARDEN CITY, AL8 7JU

    Received 21 Dec 2012
  13. Decided - GrantedN6/2013/1898/TP

    Reduce and shape by 2m to reduce overhang and balance Alder tree, covered by TPO 316

    The Wellington 1 High Street Welwyn AL6 9LZ

    Received 21 Aug 2013
  14. Decided - GrantedW6/2006/0204/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION AND CONSERVATORY

    13 Sherrardspark Road, Welwyn Garden City, AL8 7JW

    Received 15 Feb 2006
  15. Decided - Granted6/2023/2381/EMT

    T1 - Mophead Robina and T2 - Ornamental Malus to reduce crown by 25-30% (approximately 5-6ft) in front garden as trees are overgrown

    10 Walden Road Welwyn Garden City AL8 7PF

    Received 27 Nov 2023
  16. Decided - Granted6/2018/0417/EM

    Erection of a first floor side extension

    1 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 12 Feb 2018
  17. Decided - Granted6/2018/1609/HOUSE

    Erection of single storey rear extension

    68 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 18 Jun 2018
  18. Decided - Refused6/2025/2423/COND

    Submission of details pursuant to condition number 1 (Tree Protection Plan and Arboricultural Method Statement), 2 (Amendments to Submitted Plans), 4 (Site Waste Management Plan), 6 (Archaeological Written Scheme of Investigation) parts ii, iv-vi, 7 (contamination) and 10 (Road Safety Audit) on planning permission 6/2022/2317/MAJ

    Videne Hawkshead Road Little Heath Potters Bar EN6 1LX

    Received 18 Nov 2025
  19. Decided - Granted6/2017/0738/LAWP

    Certificate of Lawfulness for the proposed change of use from a garage to habitable room (home office)

    1 Stanborough Mews Welwyn Garden City AL8 6DB

    Received 12 Apr 2017
  20. Decided - Granted6/2022/0936/HOUSE

    Erection of rear extension and associated landscape works

    36 Great North Road Welwyn Garden City AL8 7TJ

    Received 20 Apr 2022
  21. Decided - Granted6/2022/1507/HOUSE

    Erection of a single storey rear extension with insertion of roof lights, removal of balcony and addition of Juliette balcony and insertion of log burner flue

    7 Groom Place Welwyn Garden City AL7 1GG

    Received 28 Jun 2022
  22. Decided - Granted6/2018/0946/HOUSE

    Erection of single storey rear extension

    54 Oaklands Avenue Brookmans Park Hatfield AL9 7UJ

    Received 11 Apr 2018
  23. Decided - Granted6/2024/1988/TPO

    T5 Hornbeam to reduce height by 3-4 meters reduce lateral branches by 1.5-2meters and thin by 15% (covered by TPO 811 (2018))

    11 Copper Beeches Welwyn AL6 0SS

    Received 15 Oct 2024
  24. Decided - Granted6/2016/1641/TPO

    Reduce Oak tree (T1) by 4m. in height & width plus reduce Silver birth tree (T2) by 3m. in height, 2.5m. in width & lift to 4m. covered by TPO 260 (2002)

    3 Mornington Digswell Welwyn AL6 0AJ

    Received 11 Aug 2016

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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