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England · Local authority

Welwyn Hatfield Borough Council
Planning applications.

Explore collected planning applications and decisions for Welwyn Hatfield Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
20,239Searchable applications
298Recorded as pending
86%Approval rate · 16,358 approved or refused records
2,304Refused applications

14,054 approved · 2,304 refused · 1,025 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2023/2035/LAWE

    Certificate of lawfulness for installation of rear dormer to facilitate conversion of loft to habitable space and two front roof windows

    65 Heathcote Avenue Hatfield AL10 0RQ

    Received 3 Oct 2023
  2. Decided - Granted6/2023/1227/LAWP

    Certificate of lawfulness for garage conversion into a new kitchen

    6 Comet Road Hatfield AL10 0SX

    Received 12 Jun 2023
  3. Decided - Granted6/2025/2551/FULL

    Change of use from general amenity to residential land for the installation of a hardstanding with crossover

    42 Wood Close Hatfield AL10 8TX

    Received 10 Dec 2025
  4. Decided - Granted6/2024/0407/EMT

    Reduce 1 x Pear tree by 2m Reduce 1 x Apple tree by 2m back to previous cuts Reduce 1 x Maple tree by 30%

    3 Pentley Park Welwyn Garden City AL8 7RT

    Received 1 Mar 2024
  5. Decided - Refused6/2020/1681/HOUSE

    Erection of first floor extension over existing garage, removal of existing chimney, alterations to fenestration, enlargement of existing outbuilding and creation of swimming pool and terrace area.

    36 Vineyards Road Northaw Potters Bar EN6 4PA

    Received 13 Jul 2020
  6. Decided - Granted6/2022/1188/EM

    Erection of double storey side extension, new front porch and external works to rear of property

    120 Boundary Lane Welwyn Garden City AL7 4DL

    Received 23 May 2022
  7. Decided - Granted6/2020/0879/HOUSE

    Erection of single storey rear extension

    63 Heathcote Avenue Hatfield AL10 0RQ

    Received 15 Apr 2020
  8. Under Consideration6/2025/1001/COND

    Submission of details pursuant to Condition 9 (CEMP) on planning permission 6/2021/0516/VAR

    Land to North East of Welwyn Garden City Panshanger Welwyn Garden City AL7 2QJ

    Received 28 May 2025
  9. Decided - Granted6/2019/1283/COND

    Submission of details pursuant to condition 1 (BS4142 Noise Survey) on planning application 6/2018/3152/FULL

    20 Station Road Cuffley Potters Bar EN6 4HT

    Received 30 May 2019
  10. Decided - Granted6/2025/1833/EMT

    Fell dead birch tree

    10 Coneydale Welwyn Garden City AL8 7RZ

    Received 28 Aug 2025
  11. Decided - Granted6/2025/2217/EM

    Installation of EV charger

    3 Hall Grove, Welwyn Garden City, AL7 4PJ

    Received 20 Oct 2025
  12. Decided - Withdrawn6/2020/1095/PN11

    Prior approval for the change of use from offices (B1) to residential (C3) providing 64 flats

    Norton Building Bridge Road East Welwyn Garden City AL7 1JR

    Received 14 May 2020
  13. Decided - Granted6/2020/1741/PN8

    Erection of rear extension with pitch roof following demolition of conservatory/extension. Instillation of roof lights

    113 Wheatley Road Welwyn Garden City AL7 3LD

    Received 4 Jun 2020
  14. Decided - Granted6/2019/3170/LAWP

    Certificate of lawfulness for installation of rear windows to facilitate loft conversion

    105 Woodhall Lane Welwyn Garden City AL7 3TH

    Received 17 Dec 2019
  15. Decided - Granted6/2022/1111/HOUSE

    Erection of single storey rear extension

    124 Cole Green Lane Welwyn Garden City AL7 3JD

    Received 13 May 2022
  16. Decided - Granted6/2021/0354/EM

    Erection of single storey rear extension

    68 Great Ganett Welwyn Garden City AL7 3DE

    Received 4 Feb 2021
  17. Decided - Granted6/2023/2432/HOUSE

    Erection of a single storey side/rear extension

    5 Saxon Road Welwyn AL6 9JR

    Received 4 Dec 2023
  18. Decided - Granted6/2024/1149/FULL

    Erection of 4 dwellings following the demolition of existing bungalow

    The Bungalow Great North Road Hatfield AL9 6DB

    Received 19 Jun 2024
  19. Decided - Granted6/2022/0826/PN14

    To enable commencement of the development of the site ref: 6/2021/2492/FULL

    Derelict Garages Hollyfield Hatfield AL10 8LW

    Received 5 Apr 2022
  20. Decided - Granted6/2025/0008/PN6

    Prior approval for a 6m x 130m track road

    Boltons Park Farm 44 Hawkshead Road Little Heath Potters Bar EN6 1NB

    Received 3 Jan 2025
  21. Decided - Granted6/2024/1141/EMT

    Removal of Hazel tree (partially dead). Removal of Cotoneaster tree (in way of consented extension but can be replaced)

    46 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 18 Jun 2024
  22. Decided - Granted6/2021/3186/EM

    Erection of 1 x carport involving demolition of existing carport

    2 Densley Close Welwyn Garden City AL8 7JX

    Received 8 Nov 2021
  23. Decided - Refused6/2018/2588/LAWE

    Certificate of lawfulness for existing use of Offices (B1) and Training (D1)

    Groundwork East Hertford Road Hatfield AL9 5PE

    Received 9 Oct 2018
  24. Decided - Granted6/2022/2159/EMT

    T1 & T2 - to remove Conifer trees from the driveway over the course of two seasons by reducing 50% of crown in year 1 (winter of 2022/23), then the remainder of both trees to ground level during the winter of 2023/24, to prevent further damage and to enable suitable step free access to the property. The trees are likely the cause of the external cracking of adjacent property and that the displacement of the driveway and fence is a result of root proliferation, which have been planted above the property’s connection to the main sewer. If it is considered appropriate, we would place additional hedging and/or trees on other side of the garage near to the driveway.

    102 Handside Lane, Welwyn Garden City, AL8 6SY

    Received 16 Sept 2022

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

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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    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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