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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
20,197Searchable applications
298Recorded as pending
86%Approval rate · 16,323 approved or refused records
2,295Refused applications

14,028 approved · 2,295 refused · 1,023 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/2573/FULL

    Construction of pitched roof to create balcony

    22 Parkway Welwyn Garden City AL8 6HG

    Received 10 Nov 2022
  2. Decided - Granted6/2018/2623/EM

    Remove 1x front hedge

    9 Elmwood Welwyn Garden City AL8 6LD

    Received 12 Oct 2018
  3. Decided - Granted6/2023/1457/EM

    Replacement of dying Privet Hedge / front garden. The front is 5 meters long, 6 meters to the side of the house

    42 Longcroft Lane Welwyn Garden City AL8 6EF

    Received 13 Jul 2023
  4. Decided - Granted6/2022/2526/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 2.8m in height following the demolition of existing roof

    Postern Gate Farm Newgate Street Village Hertford SG13 8QR

    Received 3 Nov 2022
  5. Decided - Granted6/2020/3244/HOUSE

    Erection of a single storey rear extension

    23 The Cloisters Welwyn Garden City AL8 6DU

    Received 3 Dec 2020
  6. Decided - Granted6/2019/0862/HOUSE

    Installation of rear dormer, front, side and rear facing roof lights & window to front elevation gable end to facilitate loft conversion

    4 Station Close Brookmans Park Hatfield AL9 7SU

    Received 10 Apr 2019
  7. Decided - Refused6/2020/1153/PN8

    Prior approval for the erection of a single storey rear extension measuring 6.6m in depth, 4.0m in height and 2.93m to the eaves

    13 Hawkshead Road Potters Bar EN6 1LZ

    Received 13 May 2020
  8. Decided - Granted6/2023/0148/COND

    Submission of details pursuant to conditions 1 (External materials), 2 (Drawing details) and 5 (Rainwater goods) on application ref: 6/2022/0775/LB

    Pennyfathers Pennyfathers Lane Welwyn Hertfordshire AL6 0EL

    Received 20 Jan 2023
  9. Decided - Granted6/2017/2518/TPO

    T1 Sycamore, Fell to ground level, T2 Beech to reduce by 1.5m in height and width, T3 Sycamore to reduce by 3m in height and 2m in width, T4 Leyland Cypress tree to reduce by 3m and trim covered by TPO 599 (2016)

    12 Mardley Dell Welwyn AL6 0UR

    Received 31 Oct 2017
  10. Decided - Withdrawn6/2020/3130/FULL

    Addition of 3 residential units to existing building.

    Inspira House Martinfield Welwyn Garden City AL7 1GW

    Received 24 Nov 2020
  11. Decided - Granted6/2025/2304/HOUSE

    Erection of part two storey, part single storey rear extension, first floor side extension and single storey front porch extension with canopy

    12 Nut Grove Welwyn Garden City AL8 7SQ

    Received 30 Oct 2025
  12. Decided - Granted6/2018/0601/HOUSE

    Erection of first floor side extension and installation of window to side elevation.

    3 Beverley Gardens Welwyn Garden City AL7 2NG

    Received 2 Mar 2018
  13. Decided - Withdrawn6/2024/2127/COND

    Submission of details pursuant to condition number 3 (Schedule of Repairs for Windows) on planning permission 6/2021/1668/LB

    26 Pentley Park Welwyn Garden Cit AL8 7SB

    Received 5 Nov 2024
  14. Decided - Granted6/2020/2162/EMT

    Hedge (T1) to be cut back to boundary and Plum Tree (T2) to fell

    62 Moorlands Welwyn Garden City AL7 4QG

    Received 25 Aug 2020
  15. Decided - Granted6/2024/2088/FULL

    Erection of four dwellings following the demolition of existing property

    9 Wendover Lodge Church Street Welwyn AL6 9LR

    Received 29 Oct 2024
  16. Decided6/2025/2052/TC

    T1 - 1 x Laurel to fell. T2 - 1 x Laurel to fell. G2 - Rear Laurel hedge to fell.

    5 Mandeville Rise Welwyn Garden City AL8 7JT

    Received 25 Sept 2025
  17. Decided - Granted6/2024/2253/LAWP

    Certificate of lawfulness for the erection of single storey rear extension, alterations to openings to side elevations and installation of rooflights

    4 The Beeches Welwyn AL6 9LE

    Received 25 Nov 2024
  18. Decided - Granted6/2026/0424/EMT

    G1 4 no Hornbeam 1 Hazel to fell to ground level (to facilitate planting of 16 hornbeams). T1 Ash Cut back to boundary line. T2 Holly to fell. T3 Yew to reduce by 2m and shape. T4 T5 Hornbeam to reduce by 2.5m and shape

    8 Densley Close Welwyn Garden City AL8 7JX

    Received 6 Mar 2026
  19. Decided - Refused6/2023/0410/HOUSE

    Erection of single storey rear extension, front porch extension, installation of one front rooflight and a rear dormer to facilitate the conversion of loft to habitable space

    65 Heathcote Avenue Hatfield AL10 0RQ

    Received 22 Feb 2023
  20. Decided - Granted6/2024/0864/LAWP

    Certificate of lawfulness for a proposed rear dormer to existing loft conversion

    47 Peplins Way Brookmans Park AL9 7UR

    Received 8 May 2024
  21. Decided - Granted6/2020/0479/HOUSE

    Erection of part first floor & single storey rear & side extensions

    12 Archers Ride Welwyn Garden City AL7 4PS

    Received 19 Feb 2020
  22. Decided - Refused6/2019/1724/HOUSE

    Erection of single storey rear, part two and part single storey front extensions following demolition of existing extension and garage with alterations to openings

    18 Crawford Road Hatfield AL10 0PG

    Received 12 Jul 2019
  23. Decided - Refused6/2024/1356/HOUSE

    Erection of a part two storey, part first floor side extension and installation of rear dormer

    Thomond Place Stonecross Road Hatfield AL10 0FL

    Received 16 Jul 2024
  24. Decided - Granted6/2022/1789/HOUSE

    Erection of double side & double rear extension

    37 Meadway Welwyn Garden City Hertfordshire AL7 4NQ

    Received 1 Aug 2022

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

  • 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.

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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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    Published Updated

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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