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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
27,951Searchable applications
307Recorded as pending
87%Approval rate · 23,084 approved or refused records
3,108Refused applications

19,976 approved · 3,108 refused · 1,497 withdrawn. Received dates in our records: 5 Jan 2005 to 13 Oct 2026. Most recent record check: 17 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2933/HOUSE

    Erection of a single storey front and rear extension following the removal of the existing conservatory

    3 Scotts View Welwyn Garden City AL8 6HF

    Received 12 Oct 2021
  2. Decided - Granted6/2025/2436/EM

    Replacement front door

    17 Guessens Road Welwyn Garden City AL8 6QL

    Received 21 Nov 2025
  3. Decided - Granted6/2020/3046/HOUSE

    Erection of a single storey rear extension and alterations to fenestration and glazed canopy area following the demolition of existing rear conservatory

    36 Elm Gardens Welwyn Garden City AL8 6RY

    Received 18 Nov 2020
  4. Decided - Granted6/2023/1845/EMT

    Pollard crown of weeping willow by 40% to previous pollard points.

    313 Knightsfield Welwyn Garden City AL8 7NJ

    Received 4 Sept 2023
  5. Decided - Granted6/2022/2824/HOUSE

    Erection of first floor side extension, single garage conversion, with window to replace existing garage door and alterations to openings on rear elevation.

    24 Westcott Welwyn Garden City AL7 2PP

    Received 13 Dec 2022
  6. Decided - Granted6/2019/2915/LAWP

    Certificate of lawfulness for the erection of a single storey side and rear extension

    Old Cottage 10A Hawkshead Lane North Mymms Hatfield AL9 7TB

    Received 20 Nov 2019
  7. Decided - Granted6/2018/2840/EM

    Erection of single storey front and rear extensions, installation of 3 rooflights and 1 rear window to facilitate garage conversion to habitable space

    16 High Oaks Road Welwyn Garden City AL8 7BH

    Received 5 Nov 2018
  8. Decided - Granted6/2025/0842/EM

    Erection of a ground floor extension after demolition of existing extension. Garage replacement like for like

    20 Parkfields Welwyn Garden City AL8 6ED

    Received 2 May 2025
  9. Appeal Decided - AllowedS6/2014/2470/FP

    Erection of single storey side extension, single and two storey rear extension and internal alterations

    17a New Park Road, Newgate Street, Hertford, SG13 8RD

    Received 11 Nov 2014
  10. Decided - Granted6/2024/1065/EM

    Replacement of upper windows like for like

    6 Mandeville Rise Welwyn Garden City AL8 7JU

    Received 7 Jun 2024
  11. Decided - Granted6/2021/2285/HOUSE

    Erection of a single storey side extension

    21 Kingswell Ride Cuffley Potters Bar EN6 4LH

    Received 30 Jul 2021
  12. Decided - Refused6/2023/0974/LAWP

    Certificate of lawfulness for the erection of replacement porch following the demolition of existing porch, fenestration alterations, and the replacement of existing concrete drive with block paving

    4 Fallowfield Welwyn Garden City AL7 1EE

    Received 9 May 2023
  13. Decided - Refused6/2024/2369/LAWE

    Certificate of lawfulness for the demolition of a brick boundary wall and the erection of a 1.8m timber boundary fence

    49 Marley Road Welwyn Garden City AL7 4BT

    Received 11 Dec 2024
  14. Decided - Granted6/2025/1892/VAR

    Removal of Conditions 9 (Highways Engineering), 11 (Maintenance and Adoption Plan for underground surface water), 12 (Access) on planning permission 6/2021/1649/VAR

    36 The Ridgeway Cuffley Potters Bar EN6 4AX

    Received 3 Sept 2025
  15. Decided - Granted6/2018/0054/HOUSE

    Formation of vehicular access to a classified road

    89 Northaw Road West Northaw Potters Bar EN6 4NS

    Received 8 Jan 2018
  16. Decided - Refused6/2022/0629/PN27

    Prior approval for the construction of an additional storey to facilitate the enlargement of the dwellinghouse to a maximum of approximately 7.7m

    Woodside Garden Lodge Wildhill Road Hatfield AL9 6DD

    Received 17 Mar 2022
  17. Decided - Granted6/2020/2965/EMT

    Fell 1 x Silver Birch Tree

    24 Springfields Welwyn Garden City AL8 6XP

    Received 11 Nov 2020
  18. Decided - Granted6/2026/1408/HOUSE

    Reinstatement of the previously truncated chimney

    Wytmead Essendon Hill Essendon Hatfield AL9 6AW

    Received 10 Aug 2026
  19. Decided - Granted6/2022/1513/HOUSE

    Erection of front porch

    15 Stirling Way Welwyn Garden City AL7 2QA

    Received 28 Jun 2022
  20. Decided - Granted6/2022/0791/EM

    Installation of Electric Car Charging Point

    24 Turmore Dale Welwyn Garden City AL8 6HS

    Received 30 Mar 2022
  21. Decided - Refused6/2018/2206/TPO

    Fell 6x Lime trees (G1)

    11 Stanborough Close Welwyn Garden City AL8 6XB

    Received 24 Aug 2018
  22. Decided - Granted6/2026/1440/TPO

    4 x English Oak (Quercus robur), identified as T1, T2, T3 and T4 on the accompanying sketch plan, protected under TPO 641 (2017). Proposed works: Crown reduction of up to 20%; crown thinning of up to 20%; crown lift to approximately 3–4m; removal of epicormic trunkal growth; selective pruning to provide approximately 2m clearance from the dwelling and approximately 1m clearance from overhead lines. Reason for works: Continued periodic arboricultural management of this established group of Oaks, maintaining appropriate clearance from the dwelling and overhead services whilst retaining a balanced, natural canopy and the amenity value of the trees.

    10 Mardley Heights Welwyn AL6 0TX

    Received 17 Aug 2026
  23. Decided - Granted6/2024/1684/EM

    Insertion of Velux rooflights to existing roof and proposed pergola to rear

    2 Parkfields Welwyn Garden City AL8 6ED

    Received 3 Sept 2024
  24. Decided - Granted6/2017/0058/HOUSE

    Erection of single storey rear extension

    79 Longcroft Lane Welwyn Garden City AL8 6EL

    Received 13 Jan 2017

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 permission drawings: how to read plans

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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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