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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
20,100Searchable applications
298Recorded as pending
86%Approval rate · 16,241 approved or refused records
2,280Refused applications

13,961 approved · 2,280 refused · 1,016 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2026/1148/EMT

    Removal of 1 x Leylandii tree in back garden

    2 Handside Lane Welwyn Garden City AL8 6SF

    Received 1 Jul 2026
  2. Decided - Granted6/2022/1814/COND

    Submission of details pursuant of conditions 1 (landscaping) on planning permission 6/2022/1281/HOUSE

    317 St Albans Road West Hatfield AL10 9RJ

    Received 3 Aug 2022
  3. Decided - Refused6/2024/1092/HOUSE

    Erection of single storey rear extension & replacement garage

    45 School Lane Welwyn AL6 9PQ

    Received 13 Jun 2024
  4. Decided - Granted6/2026/0830/HOUSE

    Erection of single storey front, side and rear extensions

    14 Holloways Lane Welham Green Hatfield AL9 7NP

    Received 12 May 2026
  5. Decided - Granted6/2021/2347/LAWP

    Certificate of lawfulness for the creation of loft conversion incorporating hip to gable enlargements, introduction of rear dormer and insertion of front, side and rear roof lights.

    22 Hawkshead Lane Hatfield AL9 7TB

    Received 9 Aug 2021
  6. Decided - Granted6/2021/0824/HOUSE

    Demolition of the existing boundary wall and replacement piers, walls, railings, gates and alterations to entrance portico

    106 Brookmans Avenue Brookmans Park Hatfield AL9 7QQ

    Received 15 Mar 2021
  7. Decided6/2019/0215/TPO

    Fell 1x Oak Tree -Conservation area

    3A Hall Grove Welwyn Garden City AL7 4PJ

    Received 1 Feb 2019
  8. Decided - Granted6/2021/2197/HOUSE

    Demolition of attached outbuilding and erection of a single storey side extension and a single storey, part two storey rear extension and alterations to fenestration at first floor level

    40 Homestead Lane Welwyn Garden City AL7 4NF

    Received 20 Jul 2021
  9. Decided - Granted6/2019/1691/COND

    Submission of details pursuant to condition 1 (approved drawings) on planning application 6/2019/0696/LB

    31 Station Road Welham Green Hatfield AL9 7PQ

    Received 9 Jul 2019
  10. Decided - Refused6/2025/0495/HOUSE

    Erection of a single storey front extension

    1 Rowan Walk Hatfield AL10 8SX

    Received 18 Mar 2025
  11. Decided - Granted6/2021/0640/EM

    Replace existing 8x4ft timber shed with a new 10x8ft timber shed.

    25 Daniells Welwyn Garden City AL7 1QY

    Received 26 Feb 2021
  12. Decided - Granted6/2024/1736/TPO

    TPO 776 (2018) G1. One of the two remaining Sycamore has Sooty Bark disease, its boundary siting and location of property means risk of damage. Request permission for this to be felled. It is proposed that a Copper Beach and Himalayan Birch will be planted as replacements

    2 Harmer Dell Welwyn AL6 0BE

    Received 10 Sept 2024
  13. Decided - Granted6/2022/1924/TPO

    T1 - T3 - Sycamore - Crown lift to approximately 4 m over the driveway and remove major deadwood. This is to make the trees appropriate to be parked underneath. It also allows for access for larger vehicles.

    59 New Road Digswell Welwyn AL6 0AL

    Received 17 Aug 2022
  14. Decided - Refused6/2019/3241/EM

    Erection of a front porch, single storey rear extension, and raising existing flat roof height

    40 Uplands Welwyn Garden City AL8 7EW

    Received 24 Dec 2019
  15. Decided - Granted6/2025/1541/TC

    Fell 1x Apple tree as rotted at the base and has collapsed

    17 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 17 Jul 2025
  16. Decided - Granted6/2026/1514/TPO

    T1 1 x Beech to remove in sections to ground level - Tree is almost dead and in poor condition T2 1 x Beech to reduce to clear property by 1.5m - Branches rubbing on property

    6A Wendover Drive Welwyn AL6 9LT

    Received 27 Aug 2026
  17. Decided - Withdrawn6/2023/0267/ADV

    Installation of 1 x single sided non illuminated post sign (retrospective)

    129-131 Mill Green Road Welwyn Garden City AL7 3XB

    Received 3 Feb 2023
  18. Decided - Granted6/2020/0430/PN8

    Prior approval for the erection of a single storey rear extension 6m in depth, 3.70m in heights and 2.55m to the eaves

    20 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE

    Received 13 Feb 2020
  19. Decided - Granted6/2026/0901/EM

    Erection of single storey one bedroom annexe

    21 Broomhills Welwyn Garden City AL7 1RG

    Received 20 May 2026
  20. Decided - Granted6/2018/1890/EIA

    Outline permission for the change of use of land to airfield with runway and support facilities including a clubhouse, hangar and car park with all matters except access and layout reserved

    Land South of Cromer Hyde Welwyn Garden City

    Received 18 Jul 2018
  21. Decided - Granted6/2019/0661/LAWP

    Certificate of lawfulness for erection of a single storey rear extension following demolition of existing conservatory

    3 Nathans Close Welwyn AL6 9QB

    Received 20 Mar 2019
  22. Decided - Granted6/2025/1948/TPO

    Fell 1 x Horn Beam (T2) Reduce 1 x Horn Beam to previous pruning points (T1) Reduce 4 x Horn Beams to old pollard points (T3, T4, T5, T6) Lift 3 x Horn Beams by 3m and reduce by 2m's all over (T7, T8, T9) Lift 1 x Oak by 3m and reduce by 2m (T10)

    15 Bluebells Welwyn AL6 0XD

    Received 10 Sept 2025
  23. Decided6/2021/1686/TC

    Whitebeam - Lift, thin by 25% and cut back from school Maple - remove dead wood Maple - lift to 3m and dead wood Crack Willow group - lift to 3m and dead wood Silver Birch x 7 - lift crowns to 2m Rowan - lift crowns to 2m Maple x 3 - lift to 3m and cut back from building Honey Locust - lift and cut back from building

    Applecroft Primary School 14 Applecroft Road Welwyn Garden City AL8 6JZ

    Received 26 May 2021
  24. Decided - Refused6/2021/1573/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwelling to a maximum of approximately 7.235m in height

    Tylersley Farm Tylers Causeway Newgate Street Hertford SG13 8QN

    Received 17 May 2021

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

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    Planning approval rates: how to read council statistics

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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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