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
21,215Searchable applications
298Recorded as pending
86%Approval rate · 17,137 approved or refused records
2,424Refused applications

14,713 approved · 2,424 refused · 1,084 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2022/0754/EM

    Erection of Garden Room

    118 Oakdale Welwyn Garden City AL8 7QX

    Received 29 Mar 2022
  2. Decided - Granted6/2025/0196/HOUSE

    Erection of single storey rear extension

    3 Bradgate Cuffley Potters Bar EN6 4RW

    Received 5 Feb 2025
  3. Decided - Granted6/2021/2930/FULL

    Change of use of ground floor from estate agents office (formerly Class A2 and now E(c)(ii)) to hearing clinic (formerly Class D1 and now E(e))

    9-11 Church Street Welwyn AL6 9LN

    Received 12 Oct 2021
  4. Appeal Decided - Allowed6/2022/0228/HOUSE

    Erection of a single storey extension with mono-pitched roof.

    35 Meadway Welwyn Garden City AL7 4NQ

    Received 1 Feb 2022
  5. Decided - Granted6/2017/2368/EM

    Fell 2 x Conifer trees

    32 Turmore Dale Welwyn Garden City AL8 6HS

    Received 16 Oct 2017
  6. Decided - Refused6/2018/3193/EM

    Retention of replacement front door changed from white to red

    56 Parkway Welwyn Garden City AL8 6HH

    Received 17 Dec 2018
  7. Decided - Granted6/2023/2322/LAWP

    Certificate of lawfulness for garage conversion into a habitable space with 2 new windows, installation of new door and window to replace existing patio doors at ground floor to rear, replacement of existing front lawn with permeable paving, and change of use from dwellinghouse to house of multiple occupation

    14 Poplars Welwyn Garden City AL7 2AL

    Received 17 Nov 2023
  8. Decided - Granted6/2026/1066/ADV

    Installation of 4 x non-illuminated fascia signs

    Plot 5610 Gypsy Moth Avenue Hatfield AL10 9BS

    Received 18 Jun 2026
  9. Appeal Decided - Dismissed6/2018/0776/EM

    Erection of a front porch, alterations to elevations and removal of a front hedge

    11 Lady Grove Welwyn Garden City AL7 4DS

    Received 21 Mar 2018
  10. Decided - Granted6/2019/2090/EM

    Formation of hardstanding

    27 Great Ganett Welwyn Garden City AL7 3DB

    Received 21 Aug 2019
  11. Decided - Granted6/2020/0431/HOUSE

    Erection of single storey rear extension

    10 Wellington Drive Welwyn Garden City AL7 2NJ

    Received 14 Feb 2020
  12. Decided - Granted6/2024/1512/MAJ

    Erection of 51 ‘extra care’ dwellings (Use Class C3) with associated facilities, parking and landscaping following demolition of existing sheltered housing and care home

    Elizabeth House Elizabeth Close Welwyn Garden City AL7 2JB

    Received 8 Aug 2024
  13. Decided - Granted6/2020/2147/EMT

    1 x Lime to reduce by 5m height & width and lift to 5m above ground level.

    36 Applecroft Road Welwyn Garden City AL8 6LA

    Received 24 Aug 2020
  14. Decided - Granted6/2017/1816/EM

    Erection of 3 flats (2 x 1- bedroom and 1 x 2-bedroom) following demolition of existing building containing 2 flats and a guest room

    5 Firbank Barn Close Welwyn Garden City AL8 6SU

    Received 16 Aug 2017
  15. Decided - Withdrawn6/2025/1326/COND

    Submission of details pursuant to Condition 2 (Trees) on planning permission 6/2024/0551/FULL

    Land adjacent to Bell Lane Bell Bar AL9 7AY

    Received 25 Jun 2025
  16. Decided - Granted6/2021/1642/COND

    Submission of details pursuant to condition 1 (materials) on planning permission 6/2021/0742/HOUSE

    92 Chelwood Avenue Hatfield AL10 0RE

    Received 23 May 2021
  17. Decided - Granted6/2021/1783/EM

    Demolition and rebuilding of single storey rear extension

    43 Crossway Welwyn Garden City AL8 7ED

    Received 8 Jun 2021
  18. Decided - Granted6/2018/2215/TPO

    Reduce 1 x Beech tree in height by a maximum of 1.5 metres, thin crown by 15% and cut back of the lateral branches to allow 1.5 metres from clearance of the house covered by TPO 108

    17 Mardley Wood Welwyn AL6 0UY

    Received 28 Aug 2018
  19. Appeal Decided - Dismissed6/2019/0136/FULL

    Temporary use of land for storage of vehicles (retrospective)

    Land Adjacent to 22 The Avenue Oaklands Welwyn AL6 0PP

    Received 21 Jan 2019
  20. Decided6/2026/0736/TC

    Conifer - fell 6 trees on border of property due to excessive height to be replaced with alternative hedging. Fence also is present on boundary of property separating between 24 Moorlands and 1 The Pastures

    24 Moorlands Welwyn Garden City AL7 4PP

    Received 27 Apr 2026
  21. Decided6/2021/2855/TC

    1 x Oak reduce crown size by 25-30%

    19 Fearnley Road Welwyn Garden City AL8 6HW

    Received 5 Oct 2021
  22. Decided - Granted6/2017/1064/FULL

    Installation of 4 x dormers and alterations to the internal layout to provide additional bedrooms

    Knebworth Care Home 59 London Road Woolmer Green Knebworth SG3 6JE

    Received 16 May 2017
  23. Decided6/2020/3114/TC

    Reduction 40% of mature copper beech tree

    34 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 23 Nov 2020
  24. Decided6/2022/0693/TC

    T1 Apple x 4, T2 Apple x 2, T3 Plum x 2, T4 Medlar, T5 Apple x 3, T8 Apple, T23 Plum to ‘trim’ by 25% to clear away the old growth to promote new growth as they are fruit trees and require pruning rather than reducing. The trees are NOT being reduced or thinned. T22 Plum to ‘trim’ by 20% to clear away the old growth to promote new growth as they are fruit trees and require pruning rather than reducing. The trees are NOT being reduced or thinned. T6 Ash x 3 reduce by 3 metres in height, T7 Ash crown reduction by 25% & sever Ivy up to 1m, T9 Silver Birch x 2 crown reduction by 20%, T10 Silver Birch crown reduction by 25%, T11 Cherry x 3 reduce 20% back to old pruning points, T12 Silver Birch x 2 crown reduction by 25%, T13 Purple Leaf Plum crown reduction by 20%, T14 Maple crown reduction by 20% & crown lift to 3m, T15 Silver Birch crown reduction by 25%, T16 Silver Birch crown reduction by 25%, T17 Silver Birch crown reduction by 25%, T18 Cedar to crown lift to 5 metres & remove deadwood, T19 Scots Pine to crown lift to 5 metres & remove deadwood, T20 Lime to reduce back to previous pruning points, T21 Ash reduce 20% back to old pruning points, T25 Plum Fell to ground level, TA Ash crown reduction by 50%.

    Barnside Court Welwyn Garden City Hertfordshire AL8 6TN

    Received 23 Mar 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.

  • 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.

  • 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.

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.

Check collection coverage