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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
36,530Searchable applications
335Recorded as pending
86%Approval rate · 30,424 approved or refused records
4,168Refused applications

26,256 approved · 4,168 refused · 1,958 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 24 Oct 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2021/2893/FULL

    Change of use from storage (Class B8) and commercial (Class E) to non-residential institution (Class F1) and associated external alterations.

    Unit 19 Martinfield Business Centre Martinfield Welwyn Garden City AL7 1HG

    Received 8 Oct 2021
  2. Decided - RefusedN6/2009/1321/DS

    DISCHARGE OF CONDITION 2 (SOFT AND HARD LANDSCAPING) FROM PLANNING PERMISSION N6/2007/0817/FP

    1 Oldwood Welwyn AL6 0QR

    Received 17 Jun 2009
  3. Decided - Refused6/2018/2157/FULL

    Erection of 3 dwellings with associated parking, bins and cycle provision following the demolition of existing house and outbuilding

    41 Hawkshead Lane North Mymms Hatfield AL9 7TD

    Received 20 Aug 2018
  4. Decided - Granted6/2016/0993/PN8

    Prior approval for the erection of single storey rear extension measuring 5m depth, 3.3m high and 2.9m eaves height

    11 Holliers Way Hatfield AL10 8HJ

    Received 17 May 2016
  5. Decided - Granted6/2025/1010/EMT

    1 x Ash to remove in section to near ground level, tree has a large lean with poor form and significant overhang on neighbours gardens

    8 The Limes Welwyn Garden City AL7 4BD

    Received 29 May 2025
  6. Decided - Granted6/2024/2136/TPO

    T1 Oak to crown reduce on western side, over residential gardens, by 1m leaving a minimum 2m crown radius, and to crown lift the tree to 4m any branching material with a diameter less than 4cm. (Covered by TPO 515 (2016) A2)

    Kellard House London Road Woolmer Green SG3 6FP

    Received 6 Nov 2024
  7. Decided - Granted6/2023/0695/EM

    Installation of solar panels to rear and side roof

    24 Woodland Rise Welwyn Garden City AL8 7LF

    Received 28 Mar 2023
  8. Decided - Granted6/2024/1479/EM

    Replacement of existing driveway surface (concrete, tarmac and paving) with SUDS compliant resin, with brick paving border and sandstone paving to replace current paved section

    3 Coneydale Welwyn Garden City AL8 7RX

    Received 5 Aug 2024
  9. Decided - Granted6/2024/1457/EMT

    1 x Bay to reduce width to existing hedge width, reduce height by 2.5m

    7 Attimore Close Welwyn Garden City AL8 6LN

    Received 1 Aug 2024
  10. Decided - GrantedN6/2009/1137/TE

    REMOVAL OF DISEASED ROBINIA TREE FROM FRONT GARDEN

    27 DIGSWELL ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PB

    Received 10 Jun 2009
  11. Decided - Refused6/2016/2450/FULL

    Erection of four residential flats including change of use from D1 (Non-residential institution) to C3 (Dwellinghouses)

    58 St Albans Road East Hatfield AL10 0EH

    Received 21 Nov 2016
  12. Decided - Granted6/2017/0791/HOUSE

    Erection of single storey rear and side extension, conversion of roof into habitable space with installation of two rear dormer windows.

    12 Parkway Close Welwyn Garden City AL8 6HJ

    Received 13 Apr 2017
  13. Decided - Granted6/2016/0042/TPO

    Reduce Conifer tree by 50%, second Conifer tree by 30% plus thinning of Apple tree - Conservation Area

    49 Blakemere Road, Welwyn Garden City, AL8 7PQ

    Received 8 Jan 2016
  14. Under Consultation6/2026/1735/MAJ

    Erection of a small animals teaching hospital (Use Class F1), together with associated parking, landscaping, servicing, plant and associated works following demolition of existing buildings

    Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

    Received 1 Oct 2026
  15. Decided - GrantedS6/2008/0218/FP

    ERECTION OF SINGLE STOREY FRONT EXTENSION

    2 Birchwood Close Hatfield AL10 0PP

    Received 5 Feb 2008
  16. Decided - Withdrawn6/2026/0675/LAWE

    Certificate of lawfulness for the conversion of dwelling into two 1 bedroom flats

    49 Woods Avenue Hatfield AL10 8QE

    Received 16 Apr 2026
  17. Decided - Granted6/2019/1205/ADV

    Installation of 1 x non-illuminated fascia sign

    City Park Swiftfields Welwyn Garden City AL7 1LY

    Received 17 May 2019
  18. Decided - Granted6/2018/2591/HOUSE

    Erection of single storey rear extension

    75 Pine Grove Brookmans Park Hatfield AL9 7BL

    Received 9 Oct 2018
  19. Decided - Granted6/2026/1351/EMT

    Front: 1 x Robinia reduce lateral branches overhanging the roof by approximately 1.5m To prevent debris falling into gutters

    292 Knightsfield Welwyn Garden City AL8 7NQ

    Received 31 Jul 2026
  20. Decided - GrantedW6/2015/0005/TE

    Crown reduce 5 Field Maple trees by 40%

    39 Middlefield, Welwyn Garden City, AL7 4DQ

    Received 5 Jan 2015
  21. Decided - GrantedW6/2013/1282/EM

    Erection of two storey side extension and alterations to front and side extensions

    49 Brockswood Lane, Welwyn Garden City, AL8 7BU

    Received 14 Jun 2013
  22. Decided - GrantedW6/2013/1543/TE

    Reduce Leyland trees by 1-5 metres

    1 Coneydale, Welwyn Garden City, AL8 7RX

    Received 19 Jul 2013
  23. Decided - GrantedS6/2014/1250/LUP

    Certificate of lawfulness for proposed single storey rear extensions

    113 Dixons Hill Road, Welham Green, Hatfield, AL9 7EE

    Received 3 Jun 2014
  24. Decided - Granted6/2019/1037/EM

    Erection of shed

    2 Lytton Gardens Welwyn Garden City AL8 6EG

    Received 29 Apr 2019

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 permission drawings: how to read plans

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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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