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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
40,308Searchable applications
287Recorded as pending
86%Approval rate · 33,826 approved or refused records
4,820Refused applications

29,006 approved · 4,820 refused · 2,220 withdrawn. Received dates in our records: 29 Apr 1948 to 3 Nov 2026. Most recent record check: 10 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 Counts reflect the last collected status; some records may be out of date.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. DecidedN6/2009/1376/TE

    REMOVAL OF EUCALYPTUS TREE

    3 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SE

    Received 17 Jun 2009
  2. Decided - Granted6/2018/0439/HOUSE

    Erection of two rear, two side, one front dormer window and installation of two roof lanterns to facilitate conversion of loft to habitable space

    15 Hill Rise Cuffley Potters Bar EN6 4ED

    Received 12 Feb 2018
  3. Appeal Decided - AllowedN6/2009/0275/FP

    ERECTION OF DETACHED REPLACEMENT DWELLING, BUND AND ACOUSTIC FENCE

    16 The Avenue Welwyn AL6 0PP

    Received 6 Feb 2009
  4. Decided - RefusedS6/2006/0183/FP

    ERECTION OF THREE 3-BEDROOM TERRACED DWELLINGS

    Land rear of 36 Clarkes Road Hatfield AL10 0HL

    Received 9 Feb 2006
  5. Decided - Granted6/2024/2140/HOUSE

    Erection of front porch with replacement windows and door

    18 Byfield Welwyn Garden City AL8 7AL

    Received 6 Nov 2024
  6. Decided - Granted6/2021/0803/PN8

    Prior approval for the erection of a single storey extension measuring 4.84m in depth, 2.55m in height and 2.55m to the height of the eaves

    35 Skimpans Close Welham Green Hatfield AL9 7PA

    Received 29 Jan 2021
  7. Decided - Granted6/2018/0858/FULL

    Erection of a new church hall and ancillary facilities with associated landscaping and parking following the demolition of existing church hall.

    Presbytery 141 Woodhall Lane Welwyn Garden City AL7 3TP

    Received 3 Apr 2018
  8. Decided - Granted6/2021/2492/FULL

    Erection of 8 dwellinghouses (1 x 4 bed, 5 x 3 bed & 2 x 2 bed) with associated vehicular access, parking and landscaping following demolition of existing garages

    Derelict Garages Hollyfield Hatfield AL10 8LW

    Received 25 Aug 2021
  9. Decided - Refused6/2022/0405/HOUSE

    Erection of a single storey rear extension and part infill side extension, Erection of a two-storey rear extension with partial loft conversion, insertion of rooflight and creation of part dormer windows following demolition of existing conservatory and single storey extension

    5 Pentley Park Welwyn Garden City AL8 7RT

    Received 22 Feb 2022
  10. Decided - GrantedW6/2008/0507/EM

    ERECTION OF TIMBER OUTBUILDING IN REAR GARDEN

    9 MANNICOTTS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7BW

    Received 6 Mar 2008
  11. Decided - Granted6/2016/1140/LAWP

    Certificate of lawfulness for the proposed installation of rear dormer window

    574 Howlands, Welwyn Garden City, AL7 4ET

    Received 8 Jun 2016
  12. Decided - GrantedS6/2004/1315/FP

    PROVISION OF 1 BED BASEMENT FLAT (AMENDMENT TO APPROVED S6/2003/1471/FP )

    North Drive off Great North Road Hatfield AL9 5EG

    Received 27 Aug 2004
  13. Decided - Granted6/2022/0256/EMT

    T1: Fell 1 x Oak (by car port) extremely comprised at the base with large basal cavities. Visible Fistulina hepatica. REF : 6/2021/2085/TPO T2: 1 x Oak (Rear) to reduce by approximately 1.5m height & width.

    3 Guessens Walk Welwyn Garden City AL8 6QS

    Received 4 Feb 2022
  14. Decided - Granted6/2026/0983/EM

    Installation of solar panels and changes to fenestration

    8 Beehive Green Welwyn Garden City AL7 4BE

    Received 3 Jun 2026
  15. Decided - GrantedW6/2006/0562/EM

    ERECTION OF REAR CONSERVATORY

    86 Carve Ley, Welwyn Garden City, AL7 3HH

    Received 28 Apr 2006
  16. Decided - WithdrawnN6/2014/0299/LB

    Installation of timber gates with supporting timber posts and retention of dwarf garden walls

    Paynes Farm New Road Woolmer Green Knebworth SG3 6LE

    Received 11 Feb 2014
  17. Decided - Split6/2020/0113/COND

    Confirmation that condition 2 (Materials) on planning permission 6/2015/2441/HOUSE has been complied with.

    5 Copse Hill Welwyn AL6 0RY

    Received 15 Jan 2020
  18. Under Consideration6/2026/0619/EM

    Part two storey rear extension, roof lantern to existing kitchen roof and alterations to openings to rear

    45 Great Dell Welwyn Garden City AL8 7HP

    Received 8 Apr 2026
  19. Decided - Granted6/2015/1633/TPO

    Crown lift Copper Beech Tree by 20% and crown thin by 25% covered by TPO 447

    118 Lemsford Lane, Welwyn Garden City, AL8 6YP

    Received 3 Aug 2015
  20. Decided - GrantedN6/2009/0335/FP

    ERECTION OF SINGLE STOREY EXTENSION TO CREATE A LINK BETWEEN TWO BLOCKS

    7A & 8 Wendover Lodge Church Street Welwyn AL6 9LR

    Received 17 Feb 2009
  21. Under Consideration6/2026/1355/FULL

    Erection of nine dwellings following demolition of existing garages and office building with associated access, internal roads, parking, landscaping, drainage and ancillary works

    Welwyn Pump Station School Lane Welwyn AL6 9PL

    Received 31 Jul 2026
  22. Decided - GrantedS6/2009/2254/FP

    EXTENSION TO EXISTING REAR DORMER AND ERECTION OF SINGLE STOREY REAR EXTENSION

    81CRANFIELD CRESCENT, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4DZ

    Received 8 Oct 2009
  23. Decided - GrantedN6/2007/1437/FP

    ERECTION OF FIRST FLOOR REAR EXTENSION AND SECURITY WALL AND GATES.

    30 Canonsfield Road Welwyn AL6 0QH

    Received 24 Sept 2007
  24. Decided - RefusedN6/2014/2330/TP

    Fell Ash tree and reduce six Ash trees by 50% covered by TPO 105

    6 New Road Woolmer Green Knebworth SG3 6JX

    Received 23 Oct 2014

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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