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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
40,201Searchable applications
309Recorded as pending
86%Approval rate · 33,714 approved or refused records
4,806Refused applications

28,908 approved · 4,806 refused · 2,210 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 5 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/1248/EM

    Raise hardstanding at front of property

    113 Mount Way Welwyn Garden City AL7 4LA

    Received 8 Jun 2017
  2. Decided - Granted6/2025/0431/LB

    Erection of single storey infill extension to existing annexe

    The Vines 51A High Road Essendon Hatfield AL9 6HS

    Received 7 Mar 2025
  3. Decided - Granted6/2023/0926/EMT

    T1 1 x Oak to reduce branches in north westerly direction (towards property) by 1.2m up to a height of 10m. T2 1 x Oak to reduce lowest 3 limbs in northerly direction by 1.2-1.5m.

    26 Reddings Welwyn Garden City AL8 7LA

    Received 2 May 2023
  4. Decided - GrantedN6/2009/1856/FP

    ERECTION OF REAR ELEVATION CONSERVATORY

    10 LITTLE DELL, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7HZ

    Received 25 Aug 2009
  5. Decided - Granted6/2020/3388/HOUSE

    Enlargement to the existing ground floor side extension serving the kitchen with additional floorspace above to enlarge bedroom 1. Addition of three dormer windows, alterations to garage outbuilding and inclusion of 10 x 5 metre non-enclosed outdoor swimming pool level with existing lawn surface.

    Lord Mead House Lord Mead Lane Welwyn AL6 9BW

    Received 18 Dec 2020
  6. Decided - Granted6/2016/2586/PN14

    Prior approval as to the method of demolition and any proposed restoration of the site for the demolition of 19 garage blocks and the conversion of space to residential parking area, providing 19 parking spaces

    Caponfield Garages, Caponfield Welwyn Garden City AL7 4AP

    Received 1 Dec 2016
  7. Decided - Granted6/2026/1054/EM

    Replacement of the existing Finlock guttering at both the front and rear of the property with a modern guttering system

    155 Heronswood Road Welwyn Garden City AL7 3EL

    Received 17 Jun 2026
  8. Decided - Refused6/2016/1324/PN11

    Prior approval for the proposed change of use of from office (class B1) to residential (class C3) to provide 31 dwellings

    Mercury House, 1 Broadwater Road, Welwyn Garden City, AL7 3BQ

    Received 29 Jun 2016
  9. Decided - Granted6/2026/0676/EMT

    Silver birch to crown reduce by 20% (roughly 2 meters).

    20 Elmwood Welwyn Garden City AL8 6LE

    Received 16 Apr 2026
  10. Decided - Refused6/2023/0867/LAWP

    Certificate of lawfulness for a garden annexe building

    52 Beehive Lane Welwyn Garden City AL7 4BP

    Received 24 Apr 2023
  11. Decided - Granted6/2016/2276/COND

    Approval of details reserved by condition 2 (Materials) on planning permission 6/2016/0796/HOUSE

    The Limes, 51 High Road, Essendon, Hatfield, AL9 6HS

    Received 28 Oct 2016
  12. Decided - Granted6/2021/1759/TPO

    Reduce 1 x Oak tree by 2m in height & width

    27 Blakes Way Welwyn AL6 9RE

    Received 4 Jun 2021
  13. Decided - Granted6/2017/1463/EM

    Erection of a single storey rear extension and alterations to openings

    105 Woodhall Lane Welwyn Garden City AL7 3TH

    Received 3 Jul 2017
  14. Decided - Granted6/2016/1305/LAWP

    Certificate of lawfulness for the proposed erection of rear conservatory

    4 Batford Close, Welwyn Garden City, AL7 2LQ

    Received 28 Jun 2016
  15. Decided - Granted6/2017/1857/LAWP

    Certificate of lawfulness for the erection of a single storey rear infill extension

    11 Heathlands Welwyn AL6 0UU

    Received 21 Aug 2017
  16. Decided - Split6/2016/0478/COND

    Approval of details reserved by condition 2 (materials), condition 4 (landscaping), condition 5 (construction method) and condition 6 (archaeological scheme) on planning permission 6/2015/1987/FULL

    24 Mill Lane Welwyn AL6 9ET

    Received 21 Mar 2016
  17. Decided - GrantedC6/1988/0686/FP

    Single storey rear extension

    15 Middlefield, Welwyn Garden City, AL7 4DQ

    Received 1 Jan 1988
  18. Decided - GrantedS6/2013/1236/LUP

    Certificate of lawfulness for installation of two transformers on concrete foundations

    Hatfield Grid Sub Station, North Mymms, Hertfordshire, AL4 0QT

    Received 12 Jun 2013
  19. Decided - GrantedN6/2006/0278/TP

    WORK TO TREES COVERED BY TPO188 (GROUP 5)

    12 Turpins Chase Welwyn AL6 0RA

    Received 6 Mar 2006
  20. Decided - GrantedN6/2013/1964/S73A

    Variation of condition 2 (approved plans) of planning permission N6/2012/1306/FP (Change of Use of stable building to form a single residential dwelling, with associated parking and replacement roof)

    Whitehill Stables, Whitehill, Ayot St Peter, Welwyn, AL6 9AF

    Received 9 Sept 2013
  21. Decided - WithdrawnN6/2009/1431/FP

    ERECTION OF TWO STOREY REAR EXTENSION AND INSTALLATION OF DORMER WINDOW TO THE SIDE ELEVATION

    135 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6TA

    Received 8 Jul 2009
  22. Decided - GrantedN6/2010/0117/TE

    POLLARD TWO LIME TREES TO ORIGINAL POINT (APPROX 1-2 METRES)

    2 TILECROFT, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7QY

    Received 26 Jan 2010
  23. Decided - GrantedS6/2007/1929/FP

    ERECTION OF SINGLE STOREY SIDE & TWO STOREY REAR EXTENSION AND FRONT PORCH

    34 HILL RISE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4EJ

    Received 14 Dec 2007
  24. Decided - Granted6/2023/2539/FULL

    Proposed two additional 1 bed units at third floor level to infill the section to the rear within the footprint of the building approved under the prior approval application 6/2020/3226/PN32 and alterations to fenestration and internal layout

    Sylvia Adams House 24 The Common Hatfield AL10 0ND

    Received 20 Dec 2023

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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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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