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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
21,053Searchable applications
298Recorded as pending
86%Approval rate · 16,997 approved or refused records
2,406Refused applications

14,591 approved · 2,406 refused · 1,081 withdrawn. Received dates in our records: 5 Jan 2005 to 30 Sept 2026. Most recent record check: 13 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/0035/PN3

    Prior approval for the provision of trackways and hard surfaces both as planting beds and for parking/storage; fencing and ditching for expanded horticultural nursery business

    A Brand and Sons Bulls Lane Bell Bar Hatfield AL9 7BB

    Received 4 Jan 2018
  2. Decided - Granted6/2023/2251/EMT

    1 x Goat willow to fell in rear garden to replace with more manageable species

    75 Knightsfield Welwyn Garden City AL8 7JE

    Received 6 Nov 2023
  3. Decided - Granted6/2020/1333/EMT

    Reduce 1 x Ash Tree crown by 25%

    29 Barleycroft Road Welwyn Garden City AL8 6JX

    Received 11 Jun 2020
  4. Decided - Granted6/2025/0841/LAWP

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

    8 Green Lanes Hatfield AL10 9JT

    Received 2 May 2025
  5. Decided - Granted6/2026/0610/HOUSE

    Erection of a single storey side/infill extension, alterations to flat roofing and installation of two windows to east elevation

    47 Endymion Road Hatfield AL10 8AT

    Received 8 Apr 2026
  6. Decided - Refused6/2018/1630/COND

    Submission of details pursuant to condition 17 (details of electric charging point) on planning permission 6/2017/2104/MAJ

    51 Bridge Road East Welwyn Garden City AL7 1JR

    Received 20 Jun 2018
  7. Decided - Granted6/2022/2484/HOUSE

    Erection of a single storey rear extension with roof lantern, front porch, hip to gable roof extensions, construction of 3 x pitched roof front dormers and flat roof rear dormers with Juliet balcony, insertion of roof flights to existing rear ground floor roof and front roof, alterations to openings, external materials and new patio area following the demolition of the existing conservatory and front porch

    22 Heathbrow Road Welwyn AL6 0QG

    Received 31 Oct 2022
  8. Decided - Refused6/2019/0260/HOUSE

    Erection of first floor side extension, alterations to bathroom and part demolition of stables

    Upper Cromer Hyde Farm Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE

    Received 5 Feb 2019
  9. Decided - Granted6/2019/0459/HOUSE

    Erection of garage following demolition of shed & garage

    63 Homestead Road Hatfield AL10 0QP

    Received 27 Feb 2019
  10. Decided - Withdrawn6/2025/0739/LAWP

    Certificate of lawfulness for the erection of proposed outbuilding with flat roof

    74 Warrengate Road North Mymms Hatfield AL9 7TY

    Received 17 Apr 2025
  11. Decided - Refused6/2018/3235/FULL

    Change of use of a 6-Bedroom house in multiple occupation (C4) to a 7-bedroom house in multiple occupation (Sui Generis)

    62 Herns Lane Welwyn Garden City AL7 2AH

    Received 19 Dec 2018
  12. Decided - Granted6/2020/2853/FULL

    Change of use for flats 8 and 9 from residential to office and counselling support

    8 Queensway House Queensway Hatfield AL10 0LR

    Received 30 Oct 2020
  13. Decided - Granted6/2019/1704/TPO

    Crown reduce two sweet chestnut trees by 40% - TPO 24 Area

    23 Marlborough Close Welwyn AL6 0UG

    Received 10 Jul 2019
  14. Decided - Granted6/2023/2274/HOUSE

    Erection of a single storey side extension with pitched roof

    7B Salisbury Road Welwyn Garden City AL7 3RR

    Received 10 Nov 2023
  15. Decided - Granted6/2019/0708/FULL

    Retention of front windows and door, expansion of rear door and external ramp, replacement air conditioning condenser unit on flat roof

    57 to 59 Cole Green Lane Welwyn Garden City AL7 3PT

    Received 25 Mar 2019
  16. Decided - Withdrawn6/2020/3202/TC

    1x Oak tree- T1in the rear garden of property to crown reduce by 20% or upto 2m

    9 Theobalds Close Cuffley Potters Bar EN6 4HH

    Received 30 Nov 2020
  17. Decided - Granted6/2017/1564/EM

    Erection of a single storey side and rear, first floor side and two storey rear extension

    22 Ravenfield Road Welwyn Garden City AL7 3UE

    Received 17 Jul 2017
  18. Decided - Granted6/2022/1445/TPO

    Crown clean 1 x Beech tree covered by TPO 01 and remove dead and weak branches.

    23 Warren Way Digswell Welwyn AL6 0DQ

    Received 21 Jun 2022
  19. Decided6/2025/0691/TC

    Leyland cypress hedge to reduce by approximately 5m in height. Cut back lateral branches by approximately 1m.

    3 Junction Cottages Blakemere Road Welwyn Garden City AL8 7PH

    Received 9 Apr 2025
  20. Decided - Granted6/2022/1500/EM

    Alterations to fenestration and increased height of existing single storey conservatory to facilitate new flat roof. Materials: Aluminium or uPVC to match existing. Roof: Felt to match main house

    119 Dawley Welwyn Garden City AL7 1EB

    Received 27 Jun 2022
  21. Decided - Granted6/2026/0636/EM

    Like for like replacement of front porch

    4 Ashley Close Welwyn Garden City AL8 7LH

    Received 10 Apr 2026
  22. Decided - Granted6/2018/1442/EM

    Erection of single storey rear extension to include installation of rooflight

    453 Howlands Welwyn Garden City AL7 4HP

    Received 30 May 2018
  23. Decided - Withdrawn6/2017/2969/EM

    Erection of first floor side extensions over existing garage and utility room. Conversion of existing garage and alterations to existing porch, new front door position and associated landscape alterations

    14 Guessens Road Welwyn Garden City AL8 6QR

    Received 22 Dec 2017
  24. Decided - Granted6/2026/1336/HOUSE

    Erection of a single storey side extension

    71 Briars Lane Hatfield AL10 8EX

    Received 30 Jul 2026

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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    Published Updated

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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