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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
40,295Searchable applications
322Recorded as pending
86%Approval rate · 33,786 approved or refused records
4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/0165/ADV

    New ATM label to replace existing

    13 Stonehills Welwyn Garden City AL8 6ND

    Received 31 Jan 2025
  2. Appeal Decided - Dismissed6/2017/0492/EM

    Erection of single storey rear extension with the installation of 3 rooflights.

    47 Broomhills Welwyn Garden City AL7 1RE

    Received 14 Mar 2017
  3. Decided - GrantedN6/2014/0379/FP

    Erection of single storey rear extension following demolition of existing conservatory

    4 Chelveston, Welwyn Garden City, AL7 2PW

    Received 19 Feb 2014
  4. Decided - Granted6/2016/1497/LAWP

    Certificate of lawfulness for the erection of double garage following demolition of existing garage

    41 Hawbush Rise Welwyn AL6 9PR

    Received 25 Jul 2016
  5. Decided - Refused6/2015/1637/PN8

    Prior approval for the erection of a single storey rear extension measuring 4.5m deep and 2929mm maximum high and 2815mm to the eaves

    77 High Dells Hatfield AL10 9HY

    Received 30 Jul 2015
  6. Decided - GrantedN6/2014/1847/FP

    Erection of two storey & single storey rear and side extension and vehicle crossover

    139 The Vineyard, Welwyn Garden City, AL8 7PX

    Received 18 Aug 2014
  7. Decided - RefusedN6/2008/0181/FP

    USE OF PREMISES FOR MIXED A1/A2/B1 PURPOSES AND ALTERATION TO FRONT ELEVATION OF BUILDING (PARTIALLY RETROSPECTIVE)

    11 London Road Woolmer Green Knebworth SG3 6JE

    Received 21 Jan 2008
  8. Decided - RefusedN6/2014/1516/FP

    Erection of side extension and part change of use of A1 (Retail Unit) to A5 (Fish & Chip Takeaway)

    Spar Stores, 2 Westfield, Welwyn Garden City, AL7 1QS

    Received 2 Jul 2014
  9. Decided - Granted6/2022/0313/TPO

    Reduce crown of 1 x Oak tree by 30% covered by TPO 812 (2018) (T7)

    5 Hensley Close Welwyn AL6 9QD

    Received 10 Feb 2022
  10. Decided - Granted6/2016/1133/COND

    Approval of details reserved by condition 3 (materials) of planning appeal APP/C1950/D/14/2229043 (N6/2014/1687/FP)

    9 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 6 Jun 2016
  11. Decided - Granted6/2026/0561/HOUSE

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

    32 Yew Grove Welwyn Garden City AL7 2HY

    Received 26 Mar 2026
  12. Decided - RefusedN6/2009/1158/FP

    ERECTION OF TWO BEDROOM DWELLING

    Land rear of the Grange 3 Codicote Road Welwyn AL6 9LY

    Received 4 Jun 2009
  13. Decided - Refused6/2020/0891/HOUSE

    Erection of single storey extensions following demolition of existing garage and annex structure

    Ayot Cottage Ayot St. Lawrence AL6 9BT

    Received 17 Apr 2020
  14. Decided - Refused6/2020/3279/HOUSE

    Erection of a single storey rear extension, a front porch extension and proposed window openings to dwellinghouse.

    17 Ayot Green Ayot St Peter Welwyn AL6 9BA

    Received 7 Dec 2020
  15. Decided - Granted6/2022/1681/HOUSE

    Erection of a two storey side extension and installation of front and rear dormer

    45 The Meadway Cuffley Potters Bar EN6 4ET

    Received 15 Jul 2022
  16. Decided - GrantedN6/2014/2135/DS

    Approval of details reserved by condition 3 (materials) of N6/2014/0308/FP

    3 Mannicotts, Welwyn Garden City, AL8 7BW

    Received 22 Sept 2014
  17. Decided - Granted6/2025/1353/HOUSE

    Erection of a part two storey side and rear wraparound extension and part single storey extension

    8 The Paddocks Welwyn Garden City AL7 2BP

    Received 30 Jun 2025
  18. Decided - Granted6/2019/0532/LAWE

    Certificate of lawfulness for existing C4 HMO for four people

    63 Longmead Hatfield AL10 0AD

    Received 8 Mar 2019
  19. Decided - Granted6/2026/0415/EM

    Replace existing driveway and path with driveway and path of permeable block paving

    128 Thistle Grove Welwyn Garden City AL7 4AQ

    Received 6 Mar 2026
  20. Decided - RefusedN6/2008/2461/FP

    ERECTION OF TWO STOREY REAR EXTENSION AND FRONT DORMER WINDOW

    BADGER COTTAGE, 6 WHITEHILL, AYOT ST PETER, WELWYN, HERTFORDSHIRE, AL6 9AF

    Received 19 Dec 2008
  21. Decided - Granted6/2021/0862/HOUSE

    Garden room extension to car port

    Hatfield Lodge Newgate Street Hertford SG13 8NH

    Received 17 Mar 2021
  22. Decided - GrantedS6/2013/0355/FP

    Demolition of 8 prefabricated bungalows, construction of 2 houses & 4 bungalows & associated works (affordable housing)

    The Bungalows, Essendon Hill, Essendon, Hatfield, AL9 6AQ

    Received 13 Feb 2013
  23. Decided - Granted6/2015/1791/COND

    Approval of details reserved by condition 3 (materials and condition 4 (Hedge removal) on planning permission N6/2014/2085/FP

    115 Brooksfield Welwyn Garden City AL7 2BL

    Received 20 Aug 2015
  24. Decided - Granted6/2026/1365/EMT

    Reduction of dead branches to Pear tree, reduction in size and shaping to Magnolia tree and small reduction in size to ligustrum japonicum tree Ligustrum Japonicum tree – reduction 10% Magnolia tree – reduction 25% Pear tree – reduction 20%

    4 Handside Green Welwyn Garden City AL8 6SQ

    Received 3 Aug 2026

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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