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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
22,859Searchable applications
313Recorded as pending
86%Approval rate · 18,606 approved or refused records
2,619Refused applications

15,987 approved · 2,619 refused · 1,180 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2014/1088/DS

    Approval of details reserved by condition 16 (vibration investigation) of appeal decision APP/C1950/A/10/2142040

    Former Mount Pleasant Depot, Mount Pleasant Lane, Hatfield, AL9 5BY

    Received 12 May 2014
  2. Decided - Granted6/2021/1725/EMT

    Reduce crown of Purple Plum by 3m and re-pollard Hawthorn by 3m

    34 Fordwich Road Welwyn Garden City AL8 6EY

    Received 1 Jun 2021
  3. Decided - Granted6/2016/2612/FULL

    Erection of a type C secure store to replace existing storage unit and relocation of existing plant

    1-5 Shoplands Welwyn Garden City AL8 7RH

    Received 8 Dec 2016
  4. Decided - Refused6/2021/1362/FULL

    Removal of existing timber sheds and masonry boundary wall and construction of new single storey side extension with flat roof and roof lights. Installation of new window in existing part of restaurant and minor internal alterations.

    14-16 Newgate Street Village Hertford SG13 8RA

    Received 28 Apr 2021
  5. Decided - Granted6/2017/1302/TPO

    1 x Eucalyptus to fell to ground level and 1 x Norway maple sapling to fell to ground level Conservation Area

    45 Elmwood Welwyn Garden City AL8 6LD

    Received 4 Apr 2017
  6. Decided - Granted6/2022/1746/EM

    Roof Light added to existing flat roof rear extension

    24 Lady Grove Welwyn Garden City AL7 4DU

    Received 25 Jul 2022
  7. Decided - Withdrawn6/2024/1288/FULL

    Erection of a new dwelling following demolition of existing dwelling

    53 Brookmans Avenue Brookmans Park AL9 7QG

    Received 8 Jul 2024
  8. Decided - Granted6/2017/0972/LAWE

    Certificate of Lawfulness for existing garage conversion including replacement of garage door with brick and installation of front door and windows to create habitable space

    Orchard Cottage Great North Road Welwyn Garden City AL8 7SR

    Received 5 May 2017
  9. Decided - Granted6/2018/2095/LAWP

    Certificate of lawfulness for installation of rear dormer and 2 x front velux window to facilitate loft conversion

    6 Bradmore Way Brookmans Park Hatfield AL9 7QX

    Received 10 Aug 2018
  10. Decided - Granted6/2025/1933/HOUSE

    Erection of garage following demolition of existing garage

    6 Firway Welwyn AL6 0RD

    Received 9 Sept 2025
  11. Decided - Granted6/2019/1624/HOUSE

    Erection of a single storey front extension and part single, part first floor side and part single part two storey rear extension, following demolition of existing garage and alterations to fenestration.

    46 Bramble Road Hatfield AL10 9SA

    Received 3 Jul 2019
  12. Decided6/2022/0563/TC

    T1 on the plan: Hornbeam request permission to fell urgently on the advice of a tree surgeon who has identified honey fungus at the base of the tree. Grind out the root and treat the soil. T3-T6 on the plan: Reduce height of 4 x Leylandii by 30% to maintain good health and appearance. T7 on the plan: Reduce height of Holly by maximum of 30% to maintain good health and appearance. Replace the Hornbeam with a tree of equivalent amenity value - possibly a copper beech tree.

    13 Sherrardspark Road Welwyn Garden City Hertfordshire AL8 7JW

    Received 9 Mar 2022
  13. Decided - Granted6/2024/0016/HOUSE

    Erection of front porch and single storey rear extension with rooflights following demolition of existing conservatory and shed/store, fenestration alterations, installation of side door and soil vent pipe

    54 Homestead Lane Welwyn Garden City AL7 4NF

    Received 3 Jan 2024
  14. Decided - Granted6/2021/3296/HOUSE

    Erection of a part two storey, part single storey rear extension, involving demolition of existing conservatory, a single storey front extension and porch, and insertion of 1 x window to side elevation

    10 The Croft Welwyn Garden City AL7 4JY

    Received 22 Nov 2021
  15. Decided - Refused6/2020/1113/HOUSE

    Erection of part single, part double storey rear extension, single storey side extension, part garage conversion and erection of front porch

    11 The Quadrangle Welwyn Garden City AL8 6SG

    Received 18 May 2020
  16. Decided - Granted6/2023/0943/LAWP

    Certificate of lawfulness for erection of single storey rear extension with insertion of rooflights, following demolition of existing conservatory

    2 Kingsley Court Welwyn Garden City AL7 4HZ

    Received 3 May 2023
  17. Decided - Granted6/2023/0647/HOUSE

    Erection of a single storey rear/side extension with roof light and insertion of window to existing side elevation

    20 Monks Rise Welwyn Garden City Hertfordshire AL8 7NF

    Received 22 Mar 2023
  18. Decided - Split6/2018/0524/COND

    Confirmation that conditions attached to application S6/2013/2231/MA have been complied with

    1-12 Green Close Brookmans Park Hatfield AL9 7ST

    Received 21 Feb 2018
  19. Decided - Granted6/2017/0832/LAWP

    Certificate of lawfulness for the erection of hip to gable conversion and installation of a dormer window for a loft conversion

    37 The Grove Brookmans Park Hatfield AL9 7RL

    Received 21 Apr 2017
  20. Decided - Granted6/2020/0965/HOUSE

    Erection of single storey rear extension

    2 Heathcote Avenue Hatfield AL10 0RH

    Received 29 Apr 2020
  21. Decided - Withdrawn6/2020/1523/COND

    Submission of details pursuant to condition 9 (447/19/1000 Rev E completed to the Highway Authority's satisfaction) and condition 10 (new vehicular access) on planning permission 6/2019/1172/FULL

    Unit 1 Swallow End Welwyn Garden City AL7 1JA

    Received 29 Jun 2020
  22. Decided - Refused6/2022/1127/PN14

    Prior approval for the demolition of existing dwelling

    61 New Road Digswell Welwyn AL6 0AL

    Received 16 May 2022
  23. Decided - Granted6/2023/1205/HOUSE

    Erection of single storey rear extension

    11 Sandpiper Close Hatfield AL10 9UQ

    Received 6 Jun 2023
  24. Decided - Refused6/2017/0385/LAWE

    Certificate of lawfulness for existing extension of garage conversion replacement of garage door with brickwork and installation of door and windows

    Orchard Cottage Great North Road Welwyn Garden City AL8 7SR

    Received 24 Feb 2017

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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