PlanningTrack
Get started

England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
35,183Searchable applications
313Recorded as pending
87%Approval rate · 29,309 approved or refused records
3,929Refused applications

25,380 approved · 3,929 refused · 1,830 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 22 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 Counts reflect the last collected status; some records may be out of date.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 - Withdrawn6/2015/2319/COND

    Approval of details reserved by conditions 2 (Materials), 4 (Plans) and 5 (Lifetime Home Report) on planning permission S6/2015/1034/MA - Change of use from existing offices (B1) to six residential dwellings (C3), extension and conversion of existing loft space to one dwelling and erection of new block in existing car park to provide three dwellings.

    31 Salisbury Square, Hatfield, AL9 5JD

    Received 16 Nov 2015
  2. Decided - GrantedN6/2009/1066/FP

    ERECTION OF REAR CONSERVATORY

    11 Hay Wains Woolmer Green Knebworth SG3 6HW

    Received 20 May 2009
  3. Decided - GrantedC6/1987/0790/FP

    Detached garage

    1 Meadow Green, Welwyn Garden City, AL8 6SS

    Received 1 Jan 1987
  4. Decided - Granted6/2017/0524/PN8

    Prior approval for the erection of a single storey rear extension with flat roof measuring 3.9m in depth, 3m in height and 3m to the eaves.

    8 Huggins Lane Welham Green Hatfield AL9 7LR

    Received 16 Mar 2017
  5. Decided - Refused6/2017/2510/EM

    Reduce Two Lime Trees located in rear garden by upto 50%

    38 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 27 Oct 2017
  6. Decided - Granted6/2016/1115/LAWP

    Certificate of lawfulness for the proposed conversion of garage to habitable space

    17 Mardley Hill Welwyn AL6 0UE

    Received 6 Jun 2016
  7. Decided - GrantedN6/2015/1223/FP

    Erection of a single storey rear extension and loft conversion with rear dormer

    83 Longcroft Lane, Welwyn Garden City, AL8 6EL

    Received 9 Jun 2015
  8. Decided - Granted6/2019/0159/EM

    Construction of a new brick wall measuring 7.9m long and 2m high following removal of existing fence

    4 Barleycroft Road Welwyn Garden City AL8 6JU

    Received 28 Jan 2019
  9. Decided - GrantedW6/2009/0085/EM

    REMOVAL OF HEDGE

    103 ATTIMORE ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6LG

    Received 13 Feb 2009
  10. Decided - Granted6/2023/0125/COND

    Submission of details pursuant to condition 8 (external materials) on planning permission 6/2019/2431/MAJ

    Link Drive Car Park Link Drive Hatfield AL10 8TY

    Received 17 Jan 2023
  11. Decided - Refused6/2015/2099/PN8

    Prior approval for erection of single storey rear extension measuring 8m deep by 4m high, with eaves of 2.5m in height

    30 Great North Road Brookmans Park Hatfield AL9 6NF

    Received 9 Oct 2015
  12. Decided - Granted6/2016/2007/HOUSE

    Erection of single storey front extension and conversion of garage to habitable accommodation, alterations from hip to gable roof extension and erection of a detached garage. Amendment to pp N6/2015/0793/FP (changes to roof)

    3 Heathbrow Road Welwyn AL6 0QG

    Received 29 Sept 2016
  13. Decided6/2019/1577/TC

    Fell 2 x Lombardi poplar trees (Dead and dangerous)

    175 Parkway Welwyn Garden City AL8 6JA

    Received 27 Jun 2019
  14. Decided - Refused6/2020/3357/EM

    Erection of a single storey, part two storey rear extension and alterations to fenestration

    14 Thistle Grove Welwyn Garden City AL7 4AN

    Received 15 Dec 2020
  15. Decided - Granted6/2024/0901/EM

    Remove dead section of privet hedge which has succumbed to honey fungus and replace with more resistant Griselinia hedge

    33 Blakemere Road Welwyn Garden City AL8 7PQ

    Received 18 Mar 2024
  16. Decided - Granted6/2016/1915/LAWP

    Certificate of lawfulness for the erection of single storey rear extension and front porch

    1 Byfield, Welwyn Garden City, AL8 7AL

    Received 16 Sept 2016
  17. Decided - Granted6/2021/1700/EM

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

    1 Guessens Road Welwyn Garden City AL8 6QW

    Received 27 May 2021
  18. Decided6/2021/1028/TC

    Fell 1 x Hawthorn

    15 Broadfield Place Welwyn Garden City AL8 6LJ

    Received 29 Mar 2021
  19. Appeal Decided - Dismissed6/2018/0700/HOUSE

    Retention of a raised platform that facilitates a swimming pool and erection of soft landscaping and boundary fencing

    120 Moffats Lane Brookmans Park Hatfield AL9 7RW

    Received 14 Mar 2018
  20. Decided - WithdrawnW6/2015/0358/EM

    Erection of first floor rear extension and installation of four dormer windows

    9 Brockett Close Welwyn Garden City AL8 7BN

    Received 24 Feb 2015
  21. Decided - GrantedW6/2013/1048/EM

    Alteration to window on rear elevation

    8 The Links, WELWYN GARDEN CITY, AL8 7DS

    Received 21 May 2013
  22. Decided - Withdrawn6/2020/2020/VAR

    Variation of condition 7 (drawings) on planning permission 6/2019/1065/FULL

    Beecholme 54 Codicote Road Welwyn AL6 9UJ

    Received 24 Jan 2020
  23. Decided - Granted6/2025/2540/EMT

    Reduction in height by approx 1/3 of two Yew trees (marked as Tree A and Tree B on the plan) that have grown to in excess of 36 feet, are interfering with the overhead telephone cables and are at risk of causing damage to nearby drains and house foundations Removal to ground level of non-native Conifer tree (marked as Tree C on the plan) that has grown to excessive height and spread. The tree will be replaced with a smaller, native tree.

    1 Fearnley Road Welwyn Garden City AL8 6HW

    Received 8 Dec 2025
  24. Decided - Granted6/2020/1809/HOUSE

    External and internal alterations including new windows and rooflights

    Ayot Farm Bibbs Hall Lane Welwyn AL6 9BY

    Received 23 Jul 2020

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Applications by postcode area

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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.

    UK research
    Published Updated

  • 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.

    UK research
    Published Updated

  • 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.

    UK research
    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.

Check collection coverage

More planning authorities in England

Browse all authorities