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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
40,258Searchable applications
321Recorded as pending
86%Approval rate · 33,753 approved or refused records
4,813Refused applications

28,940 approved · 4,813 refused · 2,214 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2020/0234/HOUSE

    Erection of first floor side extension

    12 Carleton Rise Welwyn AL6 9RA

    Received 28 Jan 2020
  2. Decided - Granted6/2020/0778/FULL

    Erection of 2x dwellings following demolition of existing bungalow

    8 Firway Welwyn AL6 0RD

    Received 24 Mar 2020
  3. Decided - RefusedS6/2013/1281/FP

    Alterations to the roof to provide additional habitable accommodation within the roofspace, including the formation of a crown and the insertion of two dormer windows to the front and two rooflight windows to the rear

    19 New Park Road, Newgate Street, Hertford, SG13 8RD

    Received 24 Jun 2013
  4. Decided - Granted6/2025/2026/VAR

    Variation of Condition 25 (Drawing Numbers) on planning permission 6/2019/0217/MAJ

    Northaw House Coopers Lane Northaw Potters Bar EN6 4FG

    Received 22 Sept 2025
  5. DecidedS6/2009/2277/DS

    DISCHARGE OF CONDITION 4 (CHALK-MINING) FROM PLANNING PERMISSION S6/2009/1342/FP

    1 East Lodge Great North Road Hatfield AL9 5JX

    Received 13 Oct 2009
  6. Decided - WithdrawnN6/2015/0361/FP

    Erection of a detached house, garage, parking area and loggia within the rear garden

    28 High Oaks Road, Welwyn Garden City, AL8 7BH

    Received 20 Feb 2015
  7. Decided - Granted6/2016/1721/EM

    Reduce Stone Pine tree by 30% and reduce Pear and Apple tree by 10%

    37 Valley Road, Welwyn Garden City, AL8 7DH

    Received 23 Aug 2016
  8. Decided - Granted6/2020/1460/MAJ

    Proposed erection of a temporary modular teaching building (Class D1 use).

    Land to the east of Learning Resource Centre University of Hertfordshire College Lane Campus Hatfield AL10 9UW

    Received 17 Jun 2020
  9. Decided - Granted6/2018/0082/HOUSE

    Erection of single storey rear extension

    7 Cranfield Crescent Cuffley Potters Bar EN6 4DY

    Received 10 Jan 2018
  10. Decided - Granted6/2019/3043/EM

    Reduce 1 x Poplar tree (crown reduction) by 3m

    29 Springfields Welwyn Garden City AL8 6XS

    Received 2 Dec 2019
  11. Decided - GrantedS6/2008/1936/FP

    ERECTION OF SUMMER HOUSE IN REAR GARDEN AND CONVERSION OF GARAGE INTO HABITABLE ACCOMMODATION

    27 NORTHAW ROAD EAST, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4LU

    Received 8 Oct 2008
  12. Decided - GrantedW6/2013/0599/EM

    Repairs to roof and replace window on rear elevation

    17 High Oaks Road, WELWYN GARDEN CITY, AL8 7BJ

    Received 15 Mar 2013
  13. Decided6/2018/0928/TPO

    Cut back lower growth, remove crossing branches, lift and cut back over carpark of 1 x Cherry tree by 1m, remove any crossing branches and reduce crown of 1 x Pear tree by 15 % and reduce 1 x Apple tree by around 1.5-2m and cut back overhang over carpark by around 1m - conservation area

    5 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 9 Apr 2018
  14. Decided - Granted6/2024/2089/HOUSE

    Erection of a part two, part single storey rear extension and insertion of new first floor window within the side elevation

    252 Thistle Grove Welwyn Garden City AL7 4AL

    Received 29 Oct 2024
  15. Decided - Withdrawn6/2016/0410/PN8

    Prior approval for the erection of proposed single-storey rear flat roofed extension measuring 5.2m. in length, 3m. in height and 3m. to the eaves

    19 Tolmers Road, Cuffley, Potters Bar, EN6 4JF

    Received 29 Feb 2016
  16. Decided - Withdrawn6/2016/2042/FULL

    Conversion of existing barns to form 1, 5 bedroom dwelling including demolition of redundant outbuildings and reconstruction of Eastern corner

    Roebuck Farm, 57 Lemsford Village Welwyn Garden City AL8 7TR

    Received 3 Oct 2016
  17. Decided - Granted6/2020/2824/LAWE

    Certificate of lawfulness for the use of property as a HMO

    53 De Havilland Close Hatfield AL10 0DS

    Received 28 Oct 2020
  18. Decided - Granted6/2026/0832/EM

    Install inline rooftop solar panels front and back (14 rear, 10 front), with back garden installations of backup battery and air source heat pump unit

    180 Heronswood Road Welwyn Garden City AL7 3EU

    Received 12 May 2026
  19. Decided - Granted6/2020/0834/LAWP

    Certificate of lawfulness for the erection of front porch extension

    4 Two Oaks Drive Welwyn AL6 0EZ

    Received 3 Apr 2020
  20. Decided - GrantedW6/2007/0664/EM

    ERECTION OF TWO STOREY SIDE EXTENSION

    5 Picketts, Welwyn Garden City, AL8 7HJ

    Received 30 Apr 2007
  21. Decided - GrantedS6/2004/0814/LU

    APPLICATION FOR CERTIFICATE OF LAWFULNESS: NON-COMPLIANCE; CONDITION 2 OF PLANNING PERMISSION E6/2023/73 + P/400-73 RELATING TO AGRICULTURAL OCCUPANCY

    Tylersley Farm Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 1 Jun 2004
  22. Decided - Granted6/2023/1954/HOUSE

    Erection of a front attached garage

    91 Brookmans Avenue Hatfield AL9 7QG

    Received 21 Sept 2023
  23. Decided - GrantedW6/2014/0846/EM

    Erection of single storey rear extension

    16 Great Break, Welwyn Garden City, AL7 3EZ

    Received 24 Apr 2014
  24. Decided - GrantedW6/2013/1741/EM

    Installation of one ground floor window and replacement first floor window

    27 Birdcroft Road, Welwyn Garden City, AL8 6EH

    Received 15 Aug 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

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

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    Planning application documents: what to read first

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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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