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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
23,900Searchable applications
313Recorded as pending
86%Approval rate · 19,556 approved or refused records
2,721Refused applications

16,835 approved · 2,721 refused · 1,237 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 14 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2024/1253/EM

    Part single and part two storey rear extension, single storey front extension, garden outbuilding following demolition of existing garage and alterations to driveway

    86 The Vineyard Welwyn Garden City AL8 7PU

    Received 4 Jul 2024
  2. Decided - Granted6/2022/0539/EM

    Erection of garden room to rear of garden.

    44 Crookhams Welwyn Garden City AL7 1PF

    Received 7 Mar 2022
  3. Decided - Refused6/2026/0827/HOUSE

    Erection of part single and part two storey rear extension, two storey side extension and a single storey front porch following demolition of the existing garage

    14 Birch Drive Hatfield AL10 8NX

    Received 12 May 2026
  4. Decided - Granted6/2019/0542/LB

    Installation of internal secondary glazing

    Great Nast Hyde House Wilkins Green Lane Hatfield AL10 9RB

    Received 8 Mar 2019
  5. Decided - Granted6/2021/1787/FULL

    Installation of 2 air source heat pumps and associated air to water heat pumps within an acoustic enclosure

    Hatfield Swim Centre Lemsford Road Hatfield AL10 0RU

    Received 9 Jun 2021
  6. Decided - Granted6/2018/1381/HOUSE

    Erection of single storey rear/side extension following demolition of existing conservatory

    21 Beehive Green Welwyn Garden City AL7 4BG

    Received 23 May 2018
  7. Appeal Decided - Allowed6/2023/0066/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of 12 metres in height

    Woodhurst Cattlegate Road Northaw Enfield EN2 8AU

    Received 11 Jan 2023
  8. Call In/Major Objection6/2026/0707/PIP

    Permission in Principle application for the demolition of existing buildings and erection of four detached dwellings

    Cuffley Hills Barn The Ridgeway Cuffley EN6 4AY

    Received 21 Apr 2026
  9. Under Consultation6/2026/1636/HOUSE

    Installation of an air conditioning/heat pump unit & alterations to side elevation window

    22 Digswell Road Welwyn Garden City AL8 7PA

    Received 18 Sept 2026
  10. Decided - Granted6/2018/1474/EM

    Fell 1 x Ash and 1 x Sycamore

    93 The Commons Welwyn Garden City AL7 4RZ

    Received 4 Jun 2018
  11. Decided - Granted6/2018/2198/FULL

    Change of use from Residential Dwellinghouse (Use Class C3) to a Private Children's Home (Use Class C2)

    81 Jasmine Gardens Hatfield AL10 0BN

    Received 24 Aug 2018
  12. Decided - Refused6/2018/0432/HOUSE

    Erection of two storey side and rear extensions following the demolition of existing garage and conservatory, extension and raising of roof height, installation of 2 rear dormer windows and 3 rooflights to facilitate loft conversion, removal of one chimney and extension of the existing, carry existing glazed balustrade up into roof and construction of 2 rear balconies.

    62 Brookmans Avenue Brookmans Park Hatfield AL9 7QQ

    Received 12 Feb 2018
  13. Decided - Granted6/2024/0992/HOUSE

    Erection of a two storey side extension following the demolition of existing side extension and fenestration alterations

    28 Hillcrest Hatfield AL10 8HG

    Received 28 May 2024
  14. Decided6/2023/0309/TC

    TREE WORKS - MAINTENANCE G1 – Line of beech trees (Originally planted as hedge but been allowed to grow to mature trees through lack of maintenance). Reduce crown by up to 1.5-2m (or back to boundary) on eastern side. Justification for works; 1.minimise the risk of dead/hung up crown debris 2.minimise the risk from existing deadwood within the crowns 3.maintaining the overall crown overhang to an appropriate size/spread 4.improve natural ambient light to the adj property block, specifically Nos 84, 86 & 88.”

    No 2, 4 & 6 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 8 Feb 2023
  15. Decided - Granted6/2016/2648/PN11

    Prior approval for a proposed change of use from office (Class B1) to residential (Class C3) to include the creation of 4 flats

    58 Bridge Road East Welwyn Garden City AL7 1JU

    Received 12 Dec 2016
  16. Decided6/2020/0471/TC

    Fell group of Oak trees TG2

    14 Broadfield Place Welwyn Garden City AL8 6LJ

    Received 18 Feb 2020
  17. Decided - Granted6/2018/2466/EM

    Reduce 1x Spruce by 3m height & 1.5m width

    291 Knightsfield Welwyn Garden City AL8 7NH

    Received 25 Sept 2018
  18. Decided - Granted6/2018/0990/LAWP

    Certificate of the lawfulness for conversion of loft with hip to gable roof extension and rear dormer

    7 Lemsford Village Welwyn Garden City AL8 7TN

    Received 16 Apr 2018
  19. Decided - Granted6/2024/1336/HOUSE

    Erection of single-storey rear and side extensions, first floor rear extension, second floor rear roof extension, rear single storey basement with rooflights, and external and internal alterations

    32 Parkway Welwyn Garden City AL8 6HQ

    Received 12 Jul 2024
  20. Decided - Granted6/2016/1827/EM

    Reduce height of Birch tree by 12ft (3.6m) and branches by 2ft (0.6m).

    79 Sweet Briar, Welwyn Garden City, AL7 3EB

    Received 6 Sept 2016
  21. Decided - Withdrawn6/2018/3098/PN8

    Prior approval for the erection of single storey rear extension measuring approximately 6m in depth, 3.2m in height and 3m to the eaves

    9 Bramble Road Ellenbrook Hatfield AL10 9RZ

    Received 4 Dec 2018
  22. Decided - Granted6/2024/0406/EMT

    T1 Crab apple to crown reduced by up to 30%. T3 Douglas fir to fell.

    4 Hall Grove Welwyn Garden City AL7 4PL

    Received 1 Mar 2024
  23. Decided - Granted6/2024/1621/EMT

    Remove three poplar trees.

    16 Whitethorn Welwyn Garden City AL7 3EX

    Received 23 Aug 2024
  24. Appeal Decided - Dismissed6/2018/1554/HOUSE

    Erection of a single storey side extension

    The Mulberries Danesbury Park Road Welwyn AL6 9SE

    Received 8 Jun 2018

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

  • 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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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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