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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
19,399Searchable applications
298Recorded as pending
86%Approval rate · 15,675 approved or refused records
2,175Refused applications

13,500 approved · 2,175 refused · 982 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2024/1788/LAWP

    Certificate of lawfulness for a proposed side dormer

    2 Twelve Acres Welwyn Garden City AL7 4TG

    Received 17 Sept 2024
  2. Decided - Granted6/2020/1258/MAJ

    Use of land as an extension to the caravan site for the provision of an outdoor recreation area for use in connection with the existing caravan park

    The Firs Park, Woodside Lane, Hatfield, AL9 6DG

    Received 19 May 2020
  3. Decided - Refused6/2021/1405/FULL

    Erection of two storey rear extension, single storey side extension, front porch, loft conversion with the installation of 1 x front dormer and 1 x rear juliet balcony and alterations to fenestration

    49 Mulberry Mead Hatfield AL10 9EH

    Received 4 May 2021
  4. Decided - Granted6/2021/0114/EM

    Replacement of single glazed windows and doors (16 in total) with new double glazing matching like for like with same opening configurations. The front door will stay original with a new double glazed glass panel

    1 Nut Grove Welwyn Garden City AL8 7SQ

    Received 14 Jan 2021
  5. Decided - Granted6/2024/0644/EM

    Erection of 12 x 10 ft shed in rear garden

    4 The Old Drive Welwyn Garden City AL8 6TB

    Received 4 Apr 2024
  6. Under Consideration6/2026/1431/FULL

    Erection of four 4-bedroom detached dwellings with associated landscaping and parking, following the demolition of the existing stable building

    Lodge Farm 124 Harmer Green Lane Digswell Welwyn AL6 0ET

    Received 13 Aug 2026
  7. Decided - Granted6/2023/2072/TPO

    TPO 752 (2018) G4-Hornbeam- reduce by 4-5m, back to old prune points. Touching house Red hatch G3- Hornbeam along boundary- reduce by 3-4m back to old pruning point. To increase light for trees which have been coppiced about 5 years ago Blue dot G3-Hornbeam at rear of garden which are fully grown - remove growth of 6-8m vertically in order to coppice and pollard. General woodland maintenance T1 in G3 - Oak- multi stem Oak to reduce lateral branches by 2 meters and deadwood due to proximity to house

    4 Bracken Lane Welwyn AL6 0RB

    Received 10 Oct 2023
  8. Decided - Withdrawn6/2020/2411/HOUSE

    Erection of single storey detached garden room outbuilding in rear.

    6 Ayot Green Ayot St Peter Welwyn AL6 9AB

    Received 21 Sept 2020
  9. Decided - Withdrawn6/2025/0675/FULL

    Erection of boundary walls with railings and gates along front boundary

    Land adjacent to Bell Lane Bell Bar The Brookmans Park Estate AL9 7AY

    Received 7 Apr 2025
  10. Decided - Split6/2023/1363/COND

    Submission of details pursuant to condition 2 (Demolition and construction management plan( and Condition 4 (Contamination) on planning permission 6/2021/2747/MAJ

    The Frythe Frythe Avenue Welwyn AL6 9GG

    Received 30 Jun 2023
  11. Under Consideration6/2026/1375/ADV

    Installation of internally illuminated fascia signage to comprise 2 No white acrylic 'Mcdonald's' letterset and 2 No yellow acrylic 'golden arch'

    The Stanborough Stanborough Road Welwyn Garden City AL8 6DQ

    Received 4 Aug 2026
  12. Decided - Granted6/2026/0981/ADV

    Installation of one self service laundry kiosk to Tesco superstore curtilage

    Tesco Superstore Great North Road Hatfield AL9 5JY

    Received 3 Jun 2026
  13. Decided - Refused6/2022/2450/EM

    Part single storey and part two storey rear extension, single storey side extension, Velux loft conversion, alterations to openings, patio area with balustrading and addition of solar panels to existing and proposed roofs.

    16 Walden Road Welwyn Garden City AL8 7PF

    Received 24 Oct 2022
  14. Decided - Refused6/2019/2761/COND

    Submission of details pursuant to condition 1 (construction method statement) on planning permission 6/2019/0585/FULL

    Stanborough School Lemsford Lane Welwyn Garden City AL8 6YR

    Received 1 Nov 2019
  15. Decided - Granted6/2021/3231/EM

    Erection of a single storey rear extension involving demolition of existing outbuilding, and insertion of 1 x door to existing side elevation

    536 Howlands Welwyn Garden City AL7 4ET

    Received 11 Nov 2021
  16. Decided - Granted6/2018/2598/LB

    Listed Building consent to undertake an Asbestos Refurbishment and Demolition survey.

    Templewood Primary School Pentley Park Welwyn Garden City AL8 7SD

    Received 10 Oct 2018
  17. Decided - Granted6/2019/1674/LAWP

    Certificate of lawfulness for a hip to gable loft conversion, installation of a rear dormer window, insertion of 3 x front roof lights and alteration to ground floor side elevation.

    11 Westland Drive Brookmans Park Hatfield AL9 7UG

    Received 8 Jul 2019
  18. Decided - Granted6/2026/0271/HOUSE

    Front garden boundary treatment and landscaping

    38 The Grove Brookmans Park AL9 7RN

    Received 16 Feb 2026
  19. Decided - Granted6/2021/2634/EMT

    Reduce 2 x Laurel Hedge (T1, T7) to 2m and 1 x Laurel Hedge (T5) to 3m Reduce 1 x Holly tree (T2) by 30% Reduce and shape 1 x Damson tree (T3) by 2m Reduce 1 x Pyracantha Hedge (T4) to 2m Reduce and shape 1 x Chestnut tree (T6) by 20% Reduce 1 x Sycamore tree (T8) by 30%

    6 Youngs Rise Welwyn Garden City AL8 6RU

    Received 9 Sept 2021
  20. Decided - Granted6/2025/1929/EMT

    T1 x Cherry to remove in sections to ground level - Crown is in decline due to its age related decline

    22 Beehive Green Welwyn Garden City AL7 4BG

    Received 9 Sept 2025
  21. Decided - Granted6/2020/0464/EM

    Fell 1 x Conifer tree

    33 Great Dell Welwyn Garden City AL8 7HP

    Received 18 Feb 2020
  22. Decided - Granted6/2023/0766/HOUSE

    Erection of single storey rear extension, conversion of existing store/office and new patio area

    Rozel Great North Road Hatfield AL9 6DA

    Received 6 Apr 2023
  23. Decided - Granted6/2019/2841/HOUSE

    Erection of part single part two storey rear extension

    24 Manor Road Hatfield AL10 9LJ

    Received 11 Nov 2019
  24. Decided - Granted6/2018/1829/EM

    Erection of single storey side extension

    291 Knightsfield Welwyn Garden City AL8 7NH

    Received 11 Jul 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

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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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