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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
25,027Searchable applications
313Recorded as pending
86%Approval rate · 20,550 approved or refused records
2,824Refused applications

17,726 approved · 2,824 refused · 1,325 withdrawn. Received dates in our records: 5 Jan 2005 to 2 Oct 2026. Most recent record check: 15 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/0180/HOUSE

    Erection of single storey side/rear extension, following demolition of existing garage and garden canopy

    44 Lady Grove Welwyn Garden City AL7 4DU

    Received 29 Jan 2024
  2. Decided - Granted6/2021/2637/EM

    Retain garden shed erected by previous owners and erection of a garden room in rear garden

    15 Greenfield Welwyn Garden City AL8 7HW

    Received 9 Sept 2021
  3. Decided - Granted6/2023/0987/VAR

    Variation of condition 19 (Approved Plans and Details) and associated conditions 5 (Highway Improvement Works), 7 (Vehicular Access), 9 (Car Parking), 11 (Arboricultural Impact Assessment) and 12 (Landscaping Details) on planning permission 6/2021/3290/FULL

    Land between The Manor House and Whitehall Field Cottage Essendon Hill Essendon AL9 6AJ

    Received 9 May 2023
  4. Decided - Granted6/2026/1178/EM

    Proposed ground and first floor rear extension

    7 Moorend Welwyn Garden City AL7 4QL

    Received 7 Jul 2026
  5. Decided - Granted6/2019/1883/HOUSE

    Erection of a single storey rear extension and installation of window to facilitate conversion of garage to habitable space following demolition of conservatory and single storey rear extension

    11 The Reeds Welwyn Garden City AL7 3BN

    Received 1 Aug 2019
  6. Decided - Granted6/2022/1553/TPO

    T1 - 1 x Oak at front of property, reduce low branches that are currently extending towards the property by 1m. This will ensure a 1m clearance to the property from the Oak.

    27 Oaklands Rise Welwyn Hertfordshire AL6 0RN

    Received 4 Jul 2022
  7. Decided - Granted6/2021/3425/LB

    Installation of 1 x non-illuminated sign on front elevation and relocation of existing signage from ground floor to first floor level

    Comet Hotel St Albans Road West Hatfield AL10 9RH

    Received 7 Dec 2021
  8. Decided6/2020/1860/TC

    Line of Lawson Cypress to reduce by 4m height to match with hedge and prune back 2 subsiding limbs - in a conservation area

    49 Marsden Green Welwyn Garden City AL8 6YD

    Received 28 Jul 2020
  9. Decided - Withdrawn6/2025/1330/HOUSE

    Erection of first floor side and front extension

    24 Hawkshead Lane North Mymms AL9 7TB

    Received 25 Jun 2025
  10. Decided - Granted6/2020/0656/FULL

    Change of use from B1(c) light industrial to a gym (D2) to incorporate a new vehicular access and revised layout of the approved rear parking area

    Unit 3 Swallow End Welwyn Garden City AL7 1JA

    Received 9 Mar 2020
  11. Decided - Refused6/2023/1862/PN8

    Prior approval for the erection of a single storey rear extension measuring 5m in depth, 3m in height and 3m to the eaves

    1 Rowan Walk Hatfield AL10 8SX

    Received 7 Sept 2023
  12. Decided - Refused6/2022/0979/HOUSE

    Erection of two storey front extension, a first floor side extension and new garage following the demolition of the front utility room, with minor alterations to the front landscape and the creation of a new crossover

    20 Roundwood Drive Welwyn Garden City Hertfordshire AL8 7JZ

    Received 25 Apr 2022
  13. Decided - Granted6/2018/2291/EM

    Erection of single storey rear extension and alteration to ground floor rear window

    1 Palmerston Close Welwyn Garden City AL8 7DL

    Received 6 Sept 2018
  14. Decided - Refused6/2024/1194/HOUSE

    Erection of a part single, part double storey rear extension to replace existing rear extension, single storey side extension and conversion of existing outbuilding, raising of roof to existing garage, installation of a rear dormer window to facilitate a loft conversion

    38 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 26 Jun 2024
  15. Decided6/2019/1553/TC

    Reduce1 x Apple Tree by 1.5m height & width Covered by conservation area

    44 Valley Road Welwyn Garden City AL8 7DN

    Received 25 Jun 2019
  16. Under Consultation6/2026/1691/HOUSE

    Installation of new parapet wall to front elevation and raising of part of existing flat roof.

    35 Fordwich Road Welwyn Garden City AL8 6EY

    Received 25 Sept 2026
  17. Decided - Granted6/2019/0384/HOUSE

    Erection of a porch, first floor infill extension, replacement of front dormer windows and alterations to openings

    5 Broom Hill Welwyn AL6 0SF

    Received 19 Feb 2019
  18. Decided - Granted6/2017/0840/TPO

    1 x Fell Leyland Cypress to ground level - Conservation Area

    1 High Grove Welwyn Garden City AL8 7DW

    Received 24 Apr 2017
  19. Decided - Granted6/2024/0187/HOUSE

    Erection of porch following removal of existing porch

    The Old Stables Wildhill Road Hatfield AL9 6DD

    Received 30 Jan 2024
  20. Decided - Granted6/2024/0731/EM

    Installation of 10 solar panels on each pitch of the roof

    11 Cherry Croft Welwyn Garden City AL8 7QU

    Received 19 Apr 2024
  21. Decided - Refused6/2021/3104/COND

    Submission of details pursuant of condition 10 (Construction Management Plan) from description of proposal 6/2017/1641/MAJ

    Onslow St Audreys School Old Rectory Drive Hatfield AL10 8AB

    Received 29 Oct 2021
  22. Decided - Withdrawn6/2016/1032/HOUSE

    Erection of a rear conservatory

    4 Batford Close, Welwyn Garden City, AL7 2LQ

    Received 24 May 2016
  23. Decided - RefusedW6/2013/0277/EM

    Formation of hardstanding to include double driveway

    27 Little Thistle Welwyn Garden City AL7 4AE

    Received 5 Feb 2013
  24. Decided - Granted6/2022/2120/EMT

    1 x Bay to reduce width to existing hedge width, reduce height by 2.5m The tree is becoming far too large for the surrounding area. 1 x Tooner Sinensis to pre poison return approximately 4 weeks later to fell to ground level. The tree is damaging the fence it has started to grow onto

    7 Attimore Close Welwyn Garden City AL8 6LN

    Received 12 Sept 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

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    Planning application documents: what to read first

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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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