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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
32,192Searchable applications
303Recorded as pending
87%Approval rate · 26,921 approved or refused records
3,523Refused applications

23,398 approved · 3,523 refused · 1,692 withdrawn. Received dates in our records: 29 Apr 1948 to 13 Oct 2026. Most recent record check: 20 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2022/0107/EM

    Erection of 1 x wooden garden room and 1 x wooden shed in rear garden

    192 Handside Lane Welwyn Garden City AL8 6TD

    Received 17 Jan 2022
  2. Decided - Refused6/2019/2637/LAWP

    Certificate of lawfulness for erection of rear dormer and installation of roof lights to facilitate loft conversion

    63 Holloways Lane, Welham Green, Hatfield, AL9 7NU

    Received 21 Oct 2019
  3. Decided - Granted6/2025/1256/VAR

    Variation of condition 14 (Approved Plans), on planning permission 6/2024/1190/FULL

    57 Great North Road Brookmans Park AL9 6LA

    Received 18 Jun 2025
  4. Decided - Granted6/2022/0351/EMT

    1 x Cherry to reduce by approximately 2.5m height & 1.5m width. Lift to 4m above ground level. Client wishes to reduce the tree back to its previous size 3-4 years back.

    25 Rooks Hill Welwyn Garden City AL8 6EU

    Received 14 Feb 2022
  5. Decided - Granted6/2023/0469/EMH

    Replacement of single glazed windows with double glazed windows

    2 Roundwood Drive Welwyn Garden City AL8 7JZ

    Received 1 Mar 2023
  6. Decided - Granted6/2025/1521/EM

    Replace front 4 white aluminium windows like for like

    7 Roundwood Drive Welwyn Garden Cit AL8 7JZ

    Received 15 Jul 2025
  7. Decided - RefusedN6/2012/2378/FP

    Change of use of land to form a vehicle crossover and hardstanding

    177 Thistle Grove, WELWYN GARDEN CITY, AL7 4AG

    Received 7 Nov 2012
  8. Decided - Granted6/2015/1601/COND

    Approval of conditions reserved by condition 3 (Tree Protection) of planning permission N6/2015/0863/FP - Erection of garage and single storey rear extension following demolition of existing swimming pool and rear conservatory and garage

    47 New Road Digswell Welwyn AL6 0AQ

    Received 28 Jul 2015
  9. Decided - Granted6/2021/1357/COND

    Submission of details pursuant to condition number 4 (surface water drainage) on planning permission 6/2018/2863/FULL.

    36 The Ridgeway Cuffley Potters Bar EN6 4AX

    Received 28 Apr 2021
  10. Decided - Withdrawn6/2022/1973/EMT

    T1 Oak - crown reduction by 2m from branch tips to help prevent future failure. Tree has had a recent snap out in the crown. Included union on large main scaffold limb. T2 Ash - crown lift to 4m

    12 High Oaks Road Welwyn Garden City AL8 7BH

    Received 24 Aug 2022
  11. Decided - GrantedN6/2013/0794/FP

    Erection of rear porch to replace existing rear porch, new canopy roof attached to rear of dwelling house and replace existing timber weather boarding on western elevation of existing utility room with brick work

    30 High Oaks Road, WELWYN GARDEN CITY, AL8 7BH

    Received 8 Apr 2013
  12. Decided6/2023/1176/EIA

    Request for a screening opinion associated with residential redevelopment providing 151 apartments

    B&Q Swallowfields Welwyn Garden City AL7 1JD

    Received 2 Jun 2023
  13. Decided - Granted6/2022/2296/EMH

    Replacement of roof tile that is not in keeping with council standards. To be replaced with a tile that is in fitting with the rest of the road

    35 Fordwich Road Welwyn Garden City AL8 6EY

    Received 3 Oct 2022
  14. Decided - Granted6/2024/0843/FULL

    Change of use from acupuncture herbal medicine (Class E) to sui generis for a nail spa and change main door to sliding glass door

    39A Howardsgate Welwyn Garden City AL8 6AP

    Received 3 May 2024
  15. Decided - GrantedN6/2015/1066/TC

    Reduce Oak tree by 40%

    25 Barleycroft Road, Welwyn Garden City, AL8 6JX

    Received 21 May 2015
  16. Decided - Granted6/2021/1782/EM

    Erect new shed type structure in place of current shed and move current shed alongside.

    251 Knightsfield Welwyn Garden City AL8 7RA

    Received 8 Jun 2021
  17. Decided - Granted6/2022/0356/RM

    Application for Approval of Reserved Matters (appearance, means of access, landscaping, layout and scale) following the grant of Outline Planning Permission 6/2019/2162/OUTLINE for the erection of 39 dwellings

    Land south-west of Filbert Close Hatfield AL10 9SH

    Received 15 Feb 2022
  18. Decided - Granted6/2023/2117/EM

    Replace existing windows to front of house and upper windows to rear with UPVC windows

    31 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 18 Oct 2023
  19. Decided - Granted6/2022/0370/EM

    Erection of single storey rear extension to existing garage, installation of 2 dormer windows to the rear to facilitate a loft conversion.

    18 Longcroft Lane Welwyn Garden City AL8 6EA

    Received 16 Feb 2022
  20. Decided - Granted6/2021/2353/EMT

    Remove 2 x limbs of 1 x Box Elder tree and three branches from the hazel growing within reduce group of Holly by 2.5m

    391 Knightsfield Welwyn Garden City AL8 7LY

    Received 9 Aug 2021
  21. Decided - GrantedW6/2014/1666/TE

    Cut back ash tree from roof and reduce to approx 3 metres

    26 Pentley Park, Welwyn Garden City, AL8 7SB

    Received 18 Jul 2014
  22. Decided - Granted6/2016/2140/HOUSE

    Erection of single storey rear extension and new pitched roof to existing side lean to

    43 Wilshere Road Welwyn AL6 9PU

    Received 14 Oct 2016
  23. Decided - Granted6/2026/0674/HOUSE

    Erection of single storey rear infill extension

    4 Marlborough Close Welwyn AL6 0UG

    Received 16 Apr 2026
  24. Decided - Granted6/2021/1259/EM

    Rebuild front porch and replace PVC/Glass sides with brick. Existing height, width and depth of structure to remain the same.

    356 Howlands Welwyn Garden City AL7 4HD

    Received 19 Apr 2021

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

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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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