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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
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2004/1194/FP

    ERECTION OF FIRST FLOOR SIDE AND SINGLE STOREY REAR EXTENSIONS

    5 Newgate Street Village Hertford SG13 8RA

    Received 4 Aug 2004
  2. Decided - Granted6/2026/1570/HOUSE

    Proposed loft conversion, enlargement of the existing roof with increase in ridge height to form a truncated hipped roof, installation of two front dormers, a rear dormer, and associated rooflights

    16 Mardley Avenue Welwyn AL6 0UD

    Received 9 Sept 2026
  3. Decided - Refused6/2019/2461/HOUSE

    Erection of a front porch and single storey, part two storey rear extension following demolition of porch

    4 Hill Ley Hatfield AL10 8LX

    Received 2 Oct 2019
  4. Decided - Granted6/2019/2380/HOUSE

    Widening of existing pedestrian dropped kerb for vehicular access

    34 Newgate Street Village, Hertford, SG13 8RB

    Received 26 Sept 2019
  5. Decided - Refused6/2016/0808/TPO

    Fell two Pine trees covered by TPO 547

    9 Reservoir Court, Hatfield, AL10 9UN

    Received 27 Apr 2016
  6. Decided - Refused6/2021/2993/HOUSE

    Roof and interior alterations, and conversion of loft to habitable use to include 1 x rear dormer

    Lynn Cottage 9A Warrengate Road North Mymms Hatfield AL9 7TT

    Received 19 Oct 2021
  7. Decided - Split6/2016/0569/LAWLB

    Certificate of lawfulness for the proposed installation of secondary glazing to 4no windows, painting window sills white and installation of additional loft insulation

    1 The Forge, Coopers Lane, Northaw, Potters Bar, EN6 4NF

    Received 30 Mar 2016
  8. Decided - Granted6/2021/3135/COND

    Submission of details pursuant to condition 1 (material samples) on planning application 6/2021/0099/HOUSE

    2D Plough Hill Cuffley Potters Bar EN6 4DR

    Received 2 Nov 2021
  9. Decided - GrantedW6/2008/1098/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION AND DOOR TO SIDE ELEVATION

    9 BROCKETT CLOSE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BN

    Received 4 Jul 2008
  10. Decided - Granted6/2019/0512/EM

    Fell 1 x Apple tree

    33 High Oaks Road Welwyn Garden City AL8 7BT

    Received 7 Mar 2019
  11. Decided - Granted6/2020/2624/EMH

    Loft conversion including insertion of 2X rear facing dormers and roof light.

    3 Barleycroft Green Welwyn Garden City AL8 6JY

    Received 9 Oct 2020
  12. Decided - RefusedN6/2007/1890/FP

    ERECTION OF TWO STOREY SIDE EXTENSION, SINGLE STOREY REAR EXTENSION AND LOFT CONVERSION, INCORPORATING DORMER WINDOWS TO FRONT AND REAR ROOF ELEVATIONS

    41 SHERRARDSPARK ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7LD

    Received 11 Dec 2007
  13. Decided - GrantedN6/2004/0251/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION

    24 Longcroft Lane Welwyn Garden City AL8 6EA

    Received 19 Feb 2004
  14. Decided - Granted6/2020/1449/TPO

    Reduce 3 x Oak Trees by 3 Metres all round and remove dead wood Covered by TPO 681 [2017] T1 & TPO 681 [2017] T2

    28 Robbery Bottom Lane Welwyn AL6 0UW

    Received 22 Jun 2020
  15. Decided - GrantedS6/2008/0105/AD

    INSTALLATION OF 3 NON-ILLUMINATED STACKBOARDS AND 6 FLAG POLES

    FORMER ROE GREEN CENTRE, BISHOPS RISE, HATFIELD, HERTS, AL10 9HE

    Received 18 Jan 2008
  16. Decided - Granted6/2026/1494/PN8

    Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 3m to the eaves

    6 West View Hatfield AL10 0PJ

    Received 25 Aug 2026
  17. Decided - GrantedN6/2009/1624/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION AND PARTIAL CONVERSION OF GARAGE

    16 THE VALLEY GREEN, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7DQ

    Received 23 Jul 2009
  18. Decided - Refused6/2026/1015/HOUSE

    Erection of open porch, alteration to fenestration, raised rear patio and installation of hipped roofs above the existing front elevation bay windows.

    2 Waterworks Cottages Northaw Road East Cuffley Potters Bar EN6 4RB

    Received 9 Jun 2026
  19. Decided - GrantedS6/2013/0437/DS

    Discharge of conditions, 3 (materials), 4 (energy efficent details), 5 (archaeological wriiten scheme) 6, (risk assessment), 7 (Bat details, Wildlife and Countyside Act and Habitat Regulations), 8 (hard and soft landscaping), 9 (site huts, storage of materials) of planning permission S6/2012/0719/MA

    17-23 Church Street Hatfield AL9 5AS

    Received 1 Mar 2013
  20. Decided - GrantedS6/2009/2637/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION

    23 Broad Acres Hatfield AL10 9LE

    Received 7 Dec 2009
  21. Decided - Withdrawn6/2016/0875/HOUSE

    Erection of garage and home office with new crossover and associated landscaping following demolition of existing garage

    Stocking Lane Cottage, Hill Farm Lane, Welwyn, AL6 9BW

    Received 6 May 2016
  22. Decided - Granted6/2017/1401/TPO

    Reduce Cypress, Laurel and Cotoneaster trees in Group 5 and Oak tree T24 by upto 3m covered by TPO 188 (1994)

    Land at 12 & 14 Turpins Chase Welwyn AL6 0RA

    Received 19 Jun 2017
  23. Decided6/2020/2049/TC

    Reduce 1 x Lawson Cypress by 3m in height

    1 The Orchard Welwyn Garden City AL8 7PL

    Received 13 Aug 2020
  24. Decided - Granted6/2019/0373/EM

    Erection of a part single, part two storey rear extension following demolition of existing conservatory

    69 Rosedale Welwyn Garden City AL7 1DP

    Received 14 Feb 2019

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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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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