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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - RefusedS6/2013/0967/FP

    Amendment to planning application S6/2011/1623/FP; alterations to fenestration and construction of an attached garage

    1 Ashbury Close Hatfield AL10 9SQ

    Received 7 May 2013
  2. Decided - GrantedW6/2004/1106/EM

    ERECTION OF REAR CONSERVATORY

    2A Moorlands, Welwyn Garden City, AL7 4PP

    Received 19 Jul 2004
  3. Decided - Granted6/2020/2864/EMT

    Reduce 3 x Poplar trees to 7 metres

    16 Whitethorn Welwyn Garden City AL7 3EX

    Received 2 Nov 2020
  4. Decided - Granted6/2023/0391/HOUSE

    Erection of a single storey side/rear extension and partial garage conversion, with alterations to fenestration

    12 Broadfield Road Woolmer Green Hertfordshire SG3 6LZ

    Received 20 Feb 2023
  5. Decided - Withdrawn6/2023/1909/HOUSE

    Erection of single storey infill rear additions, reduction of rear utility area, fenestration alterations and new front boundary wall incorporating electric metal gates

    38 Osborne Road Little Heath Potters Bar EN6 1SF

    Received 14 Sept 2023
  6. Decided - GrantedN6/2004/1747/FP

    ALTERATIONS TO DWELLING (PLOT 4) INCLUDING ALTERATIONS TO ACCESS AND ERECTION OF DETACHED SINGLE GARAGE (VARIATION TO PLANNING PERMISSION 2004/961/FP)

    20 Briary Wood Lane Welwyn AL6 0TF

    Received 25 Nov 2004
  7. Appeal Decided - AllowedC6/1988/0820/FP

    Single storey side extension

    13 Holwell Court, Hatfield, AL9 5RL

    Received 1 Jan 1988
  8. Decided - GrantedS6/2013/2051/FP

    Erection of single storey rear extension

    1 The Grove, Brookmans Park, Hatfield, AL9 7RL

    Received 24 Sept 2013
  9. Decided6/2022/1643/TC

    Fell 3 Contoneaster trees in rear garden as all trees dead

    33 Bridge Road Welwyn Garden City AL8 6UG

    Received 12 Jul 2022
  10. Decided - RefusedS6/2009/1819/FP

    INSTALLATION OF THREE PITCHED ROOF DORMERS

    25 CARBONE HILL, NORTHAW, POTTERS BAR, HERTFORDSHIRE, EN6 4PN

    Received 2 Sept 2009
  11. Decided - GrantedN6/2007/1462/FP

    ROOFTOP INSTALLATION OF THREE ADDITIONAL POLE MOUNTED ANTENNAS, RADIO EQUIPMENT HOUSING AND REPOSITIONING OF EXISTING EQUIPMENT

    TELEPHONE EXCHANGE, WIGMORES NORTH, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6PH

    Received 2 Oct 2007
  12. Decided6/2021/3009/TC

    All three trees are purple leaf cherry trees Tree 1. Reduce crown by 25% cutting back to growth points. Thin centre of tree by 20% and also remove dead wood. Tree 2. This tree is badly diseased, so remove diseased branches and dead wood and reduce crown by 20% cutting back to growth points Tree 3. Reduce crown by 20% cutting back to growth points Tree surgeon Martin Smith, Suburban Gardens Ltd, advised that all three trees are in poor health with too much weight on the limbs and that the above works will prolong the life of the trees.

    109 Woodhall Lane Welwyn Garden City AL7 3TP

    Received 20 Oct 2021
  13. Decided - GrantedS6/2004/0171/FP

    INSTALLATION OF STANDBY GENERATOR AND ENCLOSURE

    REAR OF BUILDING 6 T MOBILE, HATFIELD BUSINESS PARK, COMET WAY, HATFIELD, HERTFORDSHIRE

    Received 2 Feb 2004
  14. Decided - WithdrawnN6/2004/0209/FP

    NEW ROOF FORMATION TO ACCOMMODATE NEW BEDROOMS AND BATHROOMS WITH DORMER WINDOWS AND NEW CONSERVATORY

    14 Firway Close Welwyn AL6 0RE

    Received 13 Feb 2004
  15. Decided - GrantedS6/2009/2170/FP

    RETENTION OF REAR CONSERVATORY

    82 PINE GROVE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7BW

    Received 2 Oct 2009
  16. Decided6/2021/3039/TC

    Hornbeam (T1) - Reduction by 30%. Peartree (T2) - Remove due to invested with Ivy, causing heavy shading and low amenity, will replace with a mix of Laurel and Photinia. Row of Conifer Trees (T3 to T12) - Remove due to being suppressed by bigger trees and excessive shading. Hornbeams (T13) - Reduction by 30%. Hornbeams (T14) - Reduction by 30%. Hornbeams (T15)- Remove due to being supressed weak specimens. Hornbeams (T16) - Remove due to being suppressed weak specimens. Hornbeams (T17) - Reduction by 30%. Hornbeams (T18) - Reduction by 30%.

    192 Handside Lane Welwyn Garden City AL8 6TD

    Received 22 Oct 2021
  17. Decided - GrantedS6/2014/2508/NM

    Non material amendment following approval of planning permission S6/2014/1022/FP - Alteration to rear elevation at first floor level by repositioning of first floor windows plus adding one additional velux roof light to east side of sloping roof over stairwell

    28 Sutherland Avenue, Cuffley, Potters Bar, EN6 4EQ

    Received 17 Nov 2014
  18. Decided - Granted6/2026/1327/EM

    Installation of two air conditioning units, one to each side elevation

    7 Elmwood Welwyn Garden City AL8 6LD

    Received 29 Jul 2026
  19. Decided - GrantedS6/2008/0885/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION

    1 COLESDALE, CUFFLEY, HERTS, EN6 4LQ

    Received 5 Jun 2008
  20. Decided - RefusedN6/2012/2563/FP

    Erection of single storey side extension, two storey rear extension and 2 roof lights to south east elevation

    27 The Avenue Welwyn AL6 0PW

    Received 4 Dec 2012
  21. Decided - GrantedW6/2009/2398/EM

    ERECTION OF SINGLE STOREY SIDE EXTENSION

    12 MANDEVILLE RISE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7JU

    Received 28 Oct 2009
  22. Decided - Granted6/2020/2105/HOUSE

    Erection of single storey rear and side extensions, a two storey front extension and a first floor side extension

    53 Homewood Avenue Cuffley Potters Bar EN6 4QQ

    Received 20 Aug 2020
  23. Decided - Granted6/2023/0109/HOUSE

    Erection of a single storey rear extension and garage conversion

    19 Hay Wains Woolmer Green Hertfordshire SG3 6HW

    Received 16 Jan 2023
  24. Decided - GrantedS6/2007/0769/FP

    ERECTION OF TWO STOREY FRONT EXTENSION AND SINGLE STOREY REAR EXTENSION

    14 Mymms Drive Brookmans Park Hatfield AL9 7AF

    Received 18 May 2007

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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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

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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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