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29,002 approved · 4,819 refused · 2,219 withdrawn.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: 8 Nov 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2018/1028/LAWP

    Certificate of lawfulness for the erection of a single storey rear extension and porch

    24 Link Walk Hatfield AL10 8TS

    Received 19 Apr 2018
  2. Decided - Granted6/2015/1751/HOUSE

    Erection of shed in front garden

    5 Barley Croft 57 London Road Woolmer Green Knebworth SG3 6HY

    Received 18 Aug 2015
  3. Decided - GrantedS6/2007/0507/TP

    PROPOSED REDUCTION OF 2 METRES AND 20% CROWN THIN TO TREE T9 (OAK) AND REDUCTION IN HEIGHT OF TREE T10 (HORNBEAM) TO 9 METRES COVERED BY TPO 209

    9 Theobalds Road Cuffley Potters Bar EN6 4HQ

    Received 28 Mar 2007
  4. Decided - Refused6/2018/0514/FULL

    Erection of a part single, part two storey rear extension to both properties and alterations to openings to facilitate conversion of existing houses to form 4 x 1 bedroom and 3 x 2-bedroom flats with associated car parking and cycle stores, following the partial demolition of existing dwellings

    14 & 16 Bishops Rise Hatfield AL10 9HB

    Received 21 Feb 2018
  5. Decided - Granted6/2016/2432/FULL

    Erection of single dwelling with basement accommodation and access ramp to the rear of property following demolition of existing dwelling

    19 Woodland Way Welwyn AL6 0RX

    Received 17 Nov 2016
  6. Decided - GrantedW6/2008/0306/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION, TWO STOREY SIDE EXTENSION, REDUCTION OF HEIGHT TO GARAGE, DEMOLITION OF EXISTING PORCH, ERECTION OF NEW PORCH, RELOCATION OF EXISTING WINDOWS AND DOORS AND ERECTION OF NEW WINDOWS AND DOORS

    318 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7NQ

    Received 15 Feb 2008
  7. Decided - Granted6/2016/0904/TPO

    Crown lift Apple tree to 2.5m. and reduce by upto 3m. - Conservation Area

    4 Meadow Green, Welwyn Garden City, AL8 6SS

    Received 10 May 2016
  8. Decided - Granted6/2018/0849/EM

    Reduce 1x Maple tree by 1.5m height and 1.5m width and 1x Cherry lateral branches to 2m and Fell 1x Eucalyptus

    110 Parkway Welwyn Garden City AL8 6HN

    Received 3 Apr 2018
  9. Decided6/2025/2485/TC

    Mulberry tree to crown thin by 15% and reduce height and spread by 1.5m. Whitebeam tree to thin crown by 15% and reduce height and spread by up to 2-4m. Lime tree to crown lift by 5m and reduce canopy by 30%.

    21 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 27 Nov 2025
  10. Decided - Granted6/2015/2360/HOUSE

    Erection of single storey rear extension

    25 Woodside Road Digswell Welwyn AL6 0DS

    Received 19 Nov 2015
  11. Decided - Refused6/2018/0237/COND

    Submission of details pursuant to condition 1 (materials schedule), 2 (proposed landscape plan), 6 (refuse store) and 7 (cycle store) on planning permission 6/2016/2624/FULL

    Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ

    Received 24 Jan 2018
  12. DecidedN6/2014/2475/TC

    Removal of branch from Yew tree located at rear of churchyard

    St Marys Church Church Street Welwyn AL6 9LX

    Received 11 Nov 2014
  13. Decided - GrantedN6/2014/0612/LUP

    Certificate of lawfulness for proposed loft conversion, dormer window on rear roof slope and two roof lights on front roof slope

    35 Great Ley, Welwyn Garden City, AL7 4TJ

    Received 25 Mar 2014
  14. Decided - Granted6/2020/1702/HOUSE

    Erection of single storey rear extensions following demolition of existing conservatory; garage conversion and first floor extension over existing garage

    3 Buttercup Close Hatfield AL10 9FH

    Received 14 Jul 2020
  15. Decided - Granted6/2017/0884/FULL

    Partial demolition of CP Snow building, alterations to CP Snow psychology wing, demolition of associated outbuildings, landscaping and ancillary works

    University Of Hertfordshire College Lane Hatfield AL10 9AB

    Received 27 Apr 2017
  16. Decided - RefusedN6/2009/0971/LU

    ERECTION OF A NEW OUTBUILDING TO REAR, ALTERATION TO EXISTING ROOF TO FORM A NEW DORMER WINDOW AND THREE ROOFLIGHTS

    8 Great North Road Welwyn AL6 0PL

    Received 1 May 2009
  17. Decided - Granted6/2022/0455/VAR

    Variation of condition 4 (compliance with the approved Flood Risk Assessment) and 5 (detailed surface water drainage scheme) on planning permission 6/2017/2202/OUTLINE

    Land at Waterbeach, Bericot Way and Shackleton Way Welwyn Garden City AL7 2PT

    Received 25 Feb 2022
  18. Decided - Split6/2022/0516/COND

    Submission of details pursuant of condition 4 (traffic noise scheme) and condition 6 (photovoltaic panels, air source heat pump and electric vehicle charging points) of planning reference 6/2020/1365/FULL

    34 Vineyards Road Northaw Potters Bar EN6 4PA

    Received 3 Mar 2022
  19. Decided - WithdrawnS6/2007/1407/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION & INSERTION OF TWO DORMER WINDOWS TO FRONT ELEVATION

    10 OLD FRENCH HORN LANE, HATFIELD, HERTFORDSHIRE, AL10 8AJ

    Received 17 Oct 2007
  20. Decided - RefusedS6/2015/1027/DS

    Approval of details reserved by condition 3 (landscape plan) on planning permission S6/2014/0703/FP

    47 Mymms Drive, Hatfield, AL9 7AE

    Received 15 May 2015
  21. Decided - Granted6/2025/0071/EMT

    Reduce beech tree stem growing over no 7 Parkway Gardens by 30%.

    21 Birdcroft Road Welwyn Garden City AL8 6EH

    Received 17 Jan 2025
  22. Decided - GrantedS6/2009/1618/FP

    CHANGE OF USE FROM ESTATE AGENT (A2) TO TAXI OFFICE (SUI GENERIS)

    25 PARK STREET, HATFIELD, HERTFORDSHIRE, AL9 5AT

    Received 28 Jul 2009
  23. Decided - Granted6/2017/1644/HOUSE

    Single storey extension to the rear, roof alteration to the side and single storey infill to the front.

    21 Mornington Digswell Welwyn AL6 0AJ

    Received 26 Jul 2017
  24. Decided - Granted6/2025/1811/EMT

    1 x Cherry to remove 1 x decayed limb that overhangs number 42 completely back to the boundary line, remaining overhanging branches to cut back by 2.5m.

    144 Oakdale Welwyn Garden City AL8 7QT

    Received 27 Aug 2025

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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  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

  • 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.

  • 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.

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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