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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28,970 approved · 4,816 refused · 2,217 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/0488/FULL

    Erection of an outbuilding in rear garden for use as a grooming salon

    12 Rivenhall End Welwyn Garden City AL7 2PG

    Received 14 Mar 2017
  2. Decided - RefusedN6/2006/0102/FP

    ERECTION OF SINGLE STOREY REAR EXTENSION AND INSERTION OF THREE DORMER WINDOWS IN REAR ROOF SLOPE

    26 Turmore Dale Welwyn Garden City AL8 6HS

    Received 24 Jan 2006
  3. Decided - Granted6/2024/1467/LAWP

    Certificate of lawfulness for the conversion of garage into habitable space for a games room and store

    2 Wych Elm Lane Welwyn AL6 9TG

    Received 2 Aug 2024
  4. Decided - Granted6/2024/0112/LAWP

    Certificate of lawfulness for erection of an outbuilding following demolition of existing two outbuildings

    97 Northaw Road West Northaw Potters Bar EN6 4NS

    Received 16 Jan 2024
  5. Decided6/2023/1461/COND

    Seeking confirmation that condition 8 (contamination) on planning permission S6/1999/1115/OP has been discharged

    40 Buttercup Close Hatfield AL10 9FG

    Received 13 Jul 2023
  6. Under Consideration6/2026/1505/HOUSE

    Erection of an outbuilding to provide a home gym and office

    Folly Lodge And Arch Swanley Bar Lane Little Heath Potters Bar EN6 1NN

    Received 27 Aug 2026
  7. Decided - Granted6/2015/1965/TPO

    Removal of Silver Birch tree - Conservation Area.

    13 Mannicotts, Welwyn Garden City, AL8 7BW

    Received 21 Sept 2015
  8. Decided - Granted6/2019/2041/FULL

    Erection of air conditioning storage

    17A The Broadway Hatfield AL9 5HZ

    Received 15 Aug 2019
  9. Decided - Granted6/2016/1845/TPO

    Reduce 2 Robinia trees on the side of the rear garden by 30% and removal of lower level branches - Conservation Area

    20 Walden Road Welwyn Garden City AL8 7PF

    Received 5 Sept 2016
  10. Decided - Granted6/2017/1480/HOUSE

    Erection of detached garden implement building and gymnasium

    Ivory House High Road Essendon AL9 6HR

    Received 6 Jul 2017
  11. Decided - Granted6/2024/1205/FULL

    Implementation of plant machinery

    18 Station Road Cuffley Potters Bar EN6 4HT

    Received 27 Jun 2024
  12. Decided - Granted6/2020/1539/EMT

    Fell 1x Medlar tree Reduce crown 1x Mulberry Tree (Removal of selected branches illustrated in photographs) Reduce crown 1x Plum tree by 30%

    21 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 29 Jun 2020
  13. Decided - Granted6/2017/2302/HOUSE

    Erection of single storey rear extension and conversion of existing garage

    13 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 9 Oct 2017
  14. Decided - Granted6/2023/2571/HOUSE

    Erection of part single, part two storey side and rear extensions, formation of Portico porch and two, 2 storey bay windows

    70 Hill Rise Cuffley Potters Bar Hertfordshire EN6 4RG

    Received 29 Dec 2023
  15. Decided - GrantedN6/2009/0804/TC

    TOLIFT CROWN OF TREE 2456 SILVER BIRCH TO 3.0 METRES

    41 APPLECROFT ROAD, WELWYN GARDEN CITY, HERTS, AL8 6LA

    Received 1 May 2009
  16. Decided - GrantedW6/2014/2792/EM

    Erection of a part single and part two storey rear extension, removal of chimney, erection of garden fence and block paving of existing driveway

    29 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 24 Dec 2014
  17. Decided - GrantedN6/2007/0984/FP

    ERECTION OF A SINGLE STOREY REAR EXTENSION

    76 Pentley Park Welwyn Garden City AL8 7SG

    Received 29 Jun 2007
  18. Decided - GrantedW6/2015/0855/EM

    Erection of single storey rear extension

    16 Caponfield, Welwyn Garden City, AL7 4AP

    Received 21 Apr 2015
  19. Decided6/2022/1273/TC

    2 x conifers fell to ground level replace with smaller trees and shrubs

    45 Sherrardspark Road Welwyn Garden City AL8 7LD

    Received 30 May 2022
  20. Decided - Granted6/2020/0392/HOUSE

    Erection of a single storey rear extension.

    9 Gorseway Hatfield AL10 9GS

    Received 12 Feb 2020
  21. Decided - GrantedC6/1987/0276/FP

    Two storey rear extension for use as offices and development laboratories

    25 & 27 Brownfields, Welwyn Garden City, AL7 1AN

    Received 1 Jan 1987
  22. Decided - Granted6/2018/1063/TPO

    Crown reduce lime tree by 30% and crown lift to 3m and crown reduce Horse chestnut by 30% to balance crown covered by TPO 565 (2016)

    9 The Limes Welwyn Garden City AL7 4BD

    Received 24 Apr 2018
  23. Decided - GrantedW6/2004/0005/EM

    REPLACE EXISTING PRIVET HEDGE WITH SPECIES OF PHOTINIA

    126 Parkway, Welwyn Garden City, AL8 6HP

    Received 5 Jan 2004
  24. Decided - Refused6/2023/2113/PN8

    Prior approval for the erection of a single storey rear extension measuring 8m in depth, 2.78m in height, 2.78m to the eaves

    35 Codicote Road Welwyn AL6 9TT

    Received 18 Oct 2023

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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