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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
34,098Searchable applications
313Recorded as pending
87%Approval rate · 28,486 approved or refused records
3,748Refused applications

24,738 approved · 3,748 refused · 1,775 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 21 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 Counts reflect the last collected status; some records may be out of date.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 - RefusedN6/2008/2274/FP

    ERECTION OF FRONT PORCH AND EXTENSION TO GARAGE

    6 Dicket Mead Welwyn AL6 9NX

    Received 15 Jan 2009
  2. Decided - GrantedS6/2009/2321/LU

    CERTIFICATE OF LAWFULNESS FOR A PROPOSED SINGLE STOREY REAR EXTENSION TO AN EXISTING GARAGE

    7 ST MARKS COTTAGE, WILD HILL, HATFIELD, HERTS, AL9 6EB

    Received 20 Oct 2009
  3. Decided - Granted6/2024/0590/LAWP

    Certificate of lawfulness for the erection of a single storey side and rear extensions, rear dormer loft extension and detached garage following the demolition of existing rear extension and detached outbuilding

    37 The Avenue Welwyn AL6 0PW

    Received 26 Mar 2024
  4. Decided - Granted6/2017/0350/COND

    Approval of details reserved by condition 3 (Materials) and condition 4 (Traffic Management) on planning permission N6/2014/0766/FP

    36 High Street Welwyn AL6 9EQ

    Received 22 Feb 2017
  5. Decided - Granted6/2023/1087/EM

    Erection of single storey rear extension, insertions of bifold doors & raising existing parapet to side

    20 Coneydale, Welwyn Garden City, AL8 7RZ

    Received 23 May 2023
  6. Decided - GrantedW6/2014/0590/EM

    Formation of vehicle hardstanding

    77 Uplands, Welwyn Garden City, AL8 7EH

    Received 19 Mar 2014
  7. Decided - Granted6/2018/0235/FULL

    Erection of single storey side extension

    28-60 Guessens Grove Welwyn Garden City AL8 6RF

    Received 24 Jan 2018
  8. Decided - GrantedN6/2013/2508/TP

    Prune Hornbeam back from building by 2 metres

    23 Oaklands Rise Welwyn AL6 0RN

    Received 27 Nov 2013
  9. Decided - Granted6/2021/0096/HOUSE

    Erection of single storey rear extension

    1 Mill Green Road Welwyn Garden City AL7 3UU

    Received 13 Jan 2021
  10. Decided - GrantedS6/2012/2608/MA

    Replacement boundary fence to Nyn Park Estate

    Nyn Park, Well Road, Northaw, POTTERS BAR, EN6 4BS

    Received 11 Dec 2012
  11. Decided - Refused6/2021/2157/LAWP

    Certificate of lawfulness for a single storey side extension, front porch extension and erection of outbuilding

    19 Carbone Hill Northaw Potters Bar EN6 4PJ

    Received 16 Jul 2021
  12. Decided - Granted6/2019/1965/HOUSE

    Erection of single storey front extension, first floor side extension and part single, part two storey rear extension

    11 Stag Green Avenue Hatfield AL9 5EB

    Received 8 Aug 2019
  13. Decided - Granted6/2018/0549/HOUSE

    Erection of part single, part two storey side and rear extensions and two storey front extension

    43 Hill Rise Cuffley Potters Bar EN6 4EH

    Received 23 Feb 2018
  14. Decided - GrantedN6/2009/1847/DS

    DISCHARGE OF CONDITION 4 ( WINDOW DETAILS) FROM PLANNING PERMISSION N6/2008/2396/FP

    5 LITTLE YOUNGS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SL

    Received 26 Aug 2009
  15. Decided - GrantedW6/2009/2520/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    4 Little Dell, Welwyn Garden City, AL8 7HZ

    Received 10 Nov 2009
  16. Decided - RefusedN6/2013/1645/LUP

    Certificate of lawfulness for the propsed alterations to front elevations to incorporate existing terraces within dwelling

    33- 47 Hyde Valley, Welwyn Garden City, AL7 4NE

    Received 29 Jul 2013
  17. Decided - Granted6/2017/0850/TPO

    Fell Oak tree (T1) and deadwood Oak tree (T2) and lift 2 lower branches covered by TPO 89 (1983)

    16 Bluebells Welwyn AL6 0XD

    Received 24 Apr 2017
  18. Decided - Granted6/2021/3387/PN8

    Prior approval for a single storey rear extension measuring 6m in depth, 2.7m in height and 2.7m to the eaves.

    68 Brooksfield Welwyn Garden City AL7 2AN

    Received 2 Dec 2021
  19. Decided - Granted6/2018/2627/LAWP

    Certificate of lawfulness for the erection of 2x single storey side extensions and I x single storey rear extension.

    2A Whitehill Ayot St Peter Welwyn AL6 9AF

    Received 11 Oct 2018
  20. Decided - Granted6/2025/2150/COND

    Submission of details pursuant to condition number 25 (Ecological Management Plan) on planning permission 6/2022/1375/MAJ

    Land at Hollybush Lane to the east of A1000 and north of Ascots Lane Welwyn Garden City AL7 4EG

    Received 8 Oct 2025
  21. Decided - Granted6/2023/0492/EMT

    1 x Cherry to remove 1 limb, reduce remaining overhanging branches back by 1.2m. Reduce 2 lowest branches over garden area by 1m. 1 x Pear to reduce lower collection of branches overhanging the carpark by 1m. Church have voiced concerns about overhanging branches.

    5 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 3 Mar 2023
  22. Decided6/2021/2952/TC

    1 x Plum to fell to ground level. Growing on a bank with roots becoming exposed and largely leaning over neighbouring property. 1 x Leyland Cypress to reduce by 1m height. 1 x Magnolia to reduce by approximately 1.5m.

    33 Attimore Road Welwyn Garden City AL8 6LQ

    Received 14 Oct 2021
  23. Decided - Granted6/2018/2308/HOUSE

    Erection of two storey rear extension

    5 Mary Proud Court Oak Piece Welwyn AL6 0XG

    Received 7 Sept 2018
  24. Decided - RefusedS6/2015/1109/LUP

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

    6 Great North Road Brookmans Park Hatfield AL9 6NF

    Received 26 May 2015

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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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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