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
36,685Searchable applications
335Recorded as pending
86%Approval rate · 30,556 approved or refused records
4,196Refused applications

26,360 approved · 4,196 refused · 1,967 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 25 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2018/3213/EM

    Erection of single storey rear extension, following demolition of existing rear extension

    61 Boundary Lane Welwyn Garden City AL7 4EG

    Received 18 Dec 2018
  2. Decided - Withdrawn6/2022/1923/TC

    Front perimeter hedge consisting of Cypress and Privet to cut to ground level and grind out stumps to enable planting of a new hedge.

    3 The Valley Green Welwyn Garden City Hertfordshire AL8 7DQ

    Received 17 Aug 2022
  3. Decided - Granted6/2017/2150/EM

    3 x Cypress to fell to ground level 1 x Pyracanthea to fell to ground level 1 x Cotoneaster to reduce by 1m height & 1.5m width and 1 x Holly hedge to reduce to 2m above ground level

    7 Elmwood Welwyn Garden City AL8 6LD

    Received 22 Sept 2017
  4. Decided - Granted6/2026/1249/HOUSE

    Erection of a single storey side extension and garage

    61 Great North Road Welwyn Garden City AL8 7TL

    Received 16 Jul 2026
  5. Decided - GrantedN6/2013/0604/FP

    Erection of part one, part two storey front and side extensions

    12 Dolesbury Drive Welwyn AL6 0QF

    Received 20 Mar 2013
  6. Decided - RefusedN6/2007/1956/FP

    RETROSPECTIVE APPLICATION FOR THE ERECTION OF A SINGLE STOREY EXTENSION TO FORM SMOKING ENCLOSURE.

    DIGSWELL PARK SPORTS FIELD, KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE

    Received 19 Dec 2007
  7. Decided - GrantedN6/2013/0879/TC

    Removal of Cherry tree

    24 Turmore Dale, WELWYN GARDEN CITY, AL8 6HS

    Received 30 Apr 2013
  8. Decided - Granted6/2021/3444/EM

    Erection of 2 x single storey rear extensions, partial conversion of garage to habitable use, alterations to ground floor openings, removal of existing garden steps and associated landscaping works

    82 Valley Road Welwyn Garden City AL8 7DP

    Received 8 Dec 2021
  9. Decided - Granted6/2016/2052/HOUSE

    Erection of single storey rear extension with roof terrace and alterations to openings

    15 East Ridgeway, Cuffley, Potters Bar, EN6 4AW

    Received 29 Sept 2016
  10. DecidedN6/2008/1751/TE

    REMOVAL OF CEDAR TREE, REDUCE HEIGHT OF FURTHER CEDAR TREE BY APPROX 2 METRES, REDUCE FURTHER TREE BY APPROX 3 METRES

    194 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6TD

    Received 18 Sept 2008
  11. Decided - RefusedS6/2007/1729/TP

    CROWN REDUCTION OF BEECH TREE COVERED BY TPO350 T1

    North Place 82 Great North Road Hatfield AL9 5BL

    Received 15 Nov 2007
  12. Decided - Refused6/2022/0951/HOUSE

    Erection of single storey front extension and part first floor rear extension

    13 Holme Road Hatfield Hertfordshire AL10 9LH

    Received 21 Apr 2022
  13. Decided - Granted6/2022/2611/LAWP

    Certificate of lawfulness for the provision of a twin unit mobile home (caravan) within the existing lawful planning unit to provide additional accommodation for a family member as part of one household will not comprise development.

    43 London Road Woolmer Green SG3 6JE

    Received 15 Nov 2022
  14. Decided - Granted6/2025/1704/EMT

    Removal of dead Cypress tree and replacement with hedgerow to match existing

    27 Russellcroft Road Welwyn Garden City AL8 6QX

    Received 8 Aug 2025
  15. Decided - Granted6/2017/2331/HOUSE

    Erection of single storey front extension, single storey rear extension and part side part rear first floor extension, installation of rear dormer to facilitate loft conversion, 3x roof lights and alterations to openings following demolition of existing conservatory and conversion of garage to habitable space

    125 Peplins Way Brookmans Park Hatfield AL9 7UT

    Received 11 Oct 2017
  16. Decided - GrantedN6/2014/1764/FP

    Erection of single storey side and rear extension and extended rear dormer with access to side terrace

    7 Honeymead Welwyn AL6 0EG

    Received 7 Aug 2014
  17. Decided - Granted6/2019/1131/HOUSE

    Retention of outbuilding

    170 Crawford Road Hatfield AL10 0PA

    Received 9 May 2019
  18. Decided - GrantedW6/2008/1999/EM

    INSTALLATION OF REPLACEMENT FRONT DOOR

    18 LADY GROVE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4DU

    Received 20 Oct 2008
  19. Decided - GrantedN6/2013/2326/TP

    Reduce Sycamore, Laurels and Conifers by 2 metres covered by TPO188 G5

    12 Turpins Chase Welwyn AL6 0RA

    Received 30 Oct 2013
  20. Decided - GrantedW6/2013/0372/EM

    Retention of existing porch and extension to hard standing

    12 Pentley Close, WELWYN GARDEN CITY, AL8 7SH

    Received 18 Feb 2013
  21. Decided - Withdrawn6/2017/2913/OUTLINE

    Outline application for 2 dwellings following demolition of existing dwelling, with all matters except access reserved

    9 Broom Hill Welwyn AL6 0SF

    Received 18 Dec 2017
  22. Decided - Granted6/2023/2220/EMT

    T1 Removal of purple Plum T2. Shaping of Copper Spruce 1-2m of height removed T3. Trees/big bushes to left hand side of driveway (unknown variety) to reduce height by approx 2m and thin back T4. Trees to RHS of property. Reduce height by 2m

    27 High Oaks Road Welwyn Garden City AL8 7BJ

    Received 1 Nov 2023
  23. Decided - Granted6/2023/0366/COND

    Submission of details pursuant to condition 1 (materials) condition 2 (tree management) on planning permission 6/2021/2466/FULL

    Scout Hut Northaw Road West Northaw Potters Bar Hertfordshire EN6 4NP

    Received 16 Feb 2023
  24. Decided - Granted6/2016/2355/TPO

    Crown reduce Ash tree by 30% - Conservation Area

    86 The Vineyard Welwyn Garden City AL8 7PU

    Received 2 Nov 2016

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