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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
32,515Searchable applications
303Recorded as pending
87%Approval rate · 27,206 approved or refused records
3,559Refused applications

23,647 approved · 3,559 refused · 1,706 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2021/2123/LAWP

    Certificate of lawfulness for installation of mezzanine

    Aquarius House Bessemer Road Welwyn Garden City AL7 1HH

    Received 14 Jul 2021
  2. Decided - Granted6/2026/0470/LAWP

    Certificate of lawfulness for alterations to roof, hip to gable and addition of a rear facing dormer

    19 Selwyn Crescent Hatfield AL10 9NL

    Received 16 Mar 2026
  3. Decided - Granted6/2018/0160/FULL

    Change of use of field margin land to residential (retrospective).

    30 Bluebell Way Hatfield AL10 9FJ

    Received 17 Jan 2018
  4. Decided - GrantedS6/2013/1640/LUP

    Certificate of lawfulness for the formation of dormer on rear elevation

    29 Skimpans Close, Welham Green, Hatfield, AL9 7PA

    Received 31 Jul 2013
  5. Decided - Refused6/2020/0739/LAWP

    Certificate of lawfulness for the erection of an outbuilding

    68 Hillcrest Hatfield AL10 8HG

    Received 17 Mar 2020
  6. Decided - GrantedW6/2015/1067/TE

    Reduce Oak tree by 40%

    25 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 21 May 2015
  7. Decided - Granted6/2021/2987/EM

    Erection of a detached shed in rear garden

    4 Guessens Road Welwyn Garden City AL8 6QR

    Received 18 Oct 2021
  8. Decided - Granted6/2024/1815/LAWP

    Certificate of lawfulness for the erection of first floor extension, single storey rear extension, single storey side and rear extension, alterations to fenestrations and installation of roof a roof light to rear roof slope

    24 Fulling Mill Lane Welwyn AL6 9NS

    Received 20 Sept 2024
  9. Decided - Granted6/2018/2300/LB

    Omission of 5 x rooflights from south-facing roofslope of extension

    Oshwal Centre Coopers Lane Road Northaw Potters Bar EN6 4DG

    Received 7 Sept 2018
  10. Decided - Granted6/2022/0776/HOUSE

    Erection of first floor side extension and single storey rear extension

    20 Reynards Road Welwyn Hertfordshire AL6 9TP

    Received 30 Mar 2022
  11. Decided - Granted6/2019/0896/TPO

    Crown reduce by 30% two oak trees (T13 and T14) covered by TPO 711 (2017)

    19 Oak Piece Welwyn AL6 0XE

    Received 12 Apr 2019
  12. Decided - Refused6/2024/2043/HOUSE

    Erection of a single storey side and rear extension following the demolition of the existing conservatory, chimney removal and fenestration alterations

    24 Springfields Welwyn Garden City AL8 6XP

    Received 23 Oct 2024
  13. Decided - Granted6/2022/2106/COND

    Submission of details pursuant to condition 17(b) (Highway management and maintenance) on planning reference 6/2018/0171/MAJ

    Former Shredded Wheat Factory 3 Bridge Road Welwyn Garden City AL8 6UN

    Received 9 Sept 2022
  14. Decided - Granted6/2023/1191/EM

    Restrospective application for formation of a hardstanding

    55 Broomhills Welwyn Garden City AL7 1RE

    Received 5 Jun 2023
  15. Decided - Granted6/2020/1163/EMT

    Fell 1 x Ash Tree [T1]

    120 Handside Lane Welwyn Garden City AL8 6SZ

    Received 22 May 2020
  16. Under Consideration6/2026/1527/COND

    Submission of details pursuant to condition numbers 1 (Construction Environmental Management Plan), 2 (Arboricultural Method Statement and Tree Protection Plan), 3 (Construction Method Statement - Phase 2 only) and 4 (Site Waste Management Plan) on planning permission 6/2025/1024/RM

    Land at Hollybush Lane to the east of A1000 and north of Ascots Lane Welwyn Garden City AL7 4EG

    Received 1 Sept 2026
  17. Decided - Granted6/2019/2590/ADV

    Installation of 1x internally illuminated fascia sign, 1x internally illuminated projecting sign and 1x internally illuminated internal TV screen sign

    60 Howardsgate Welwyn Garden City AL8 6BP

    Received 15 Oct 2019
  18. Decided - Granted6/2025/0386/HOUSE

    Erection of a single storey front and side extension with alterations to the existing extension including a replacement roof

    4 Whitegate Cottages Great Braitch Lane Hatfield AL10 9BG

    Received 27 Feb 2025
  19. Decided - Refused6/2017/0302/LAWP

    Certificate of lawfulness for the erection of porch following demolition of existing porch

    149 Blythway Welwyn Garden City AL7 1DS

    Received 17 Feb 2017
  20. Decided - Granted6/2019/1782/EM

    Erection of a single garage with new front door, single storey side and rear extension and a first floor side extension, installation of a side gable window and rooflights to facilitate conversion of loft, ground floor rear window, alterations to openings, erection of front fences and gates and extension of vehicle hardstanding and crossover following the demolition of attached double garage and utility room

    34 Sherrardspark Road Welwyn Garden City AL8 7JS

    Received 19 Jul 2019
  21. Decided - Granted6/2017/0680/COND

    Submission of details pursuant to condition 1 (materials) on planning permission 6/2016/2684/HOUSE dated 13/03/2017

    91 Brookmans Avenue Brookmans Park Hatfield AL9 7QG

    Received 5 Apr 2017
  22. Decided - RefusedW6/2015/0648/EM

    Erection of perimeter wall

    40 Mill Green Road, Welwyn Garden City, AL7 3XF

    Received 7 Apr 2015
  23. Decided - GrantedW6/2014/0693/EM

    Painting of brickwork

    112 - 116 Sweet Briar, Welwyn Garden City, AL7 3EA

    Received 1 Apr 2014
  24. Decided - GrantedN6/2013/1902/LUP

    Certificate of lawfulness for the proposed erection of single storey rear extension

    15 Robbery Bottom Lane Welwyn AL6 0UL

    Received 29 Aug 2013

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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