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
39,536Searchable applications
344Recorded as pending
86%Approval rate · 33,083 approved or refused records
4,730Refused applications

28,353 approved · 4,730 refused · 2,167 withdrawn. Received dates in our records: 29 Apr 1948 to 21 Oct 2026. Most recent record check: 27 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/0496/TPO

    Fell T1, T2, T3 Lombardy Poplar. Appears to be dying but no signs of disease. Branch falls have damaged cars, request to remove and replace with three new trees. Covered by TPO187 G2 and TPO904 G2

    2 Woodfield Road Welwyn Garden City AL7 1JQ

    Received 18 Mar 2025
  2. Decided - GrantedN6/2008/1105/FP

    CHANGE OF USE OF FIRST FLOOR FROM B1 (OFFICES) TO A2 (LETTINGS AGENCY)

    8 HOWARDSGATE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6BG

    Received 4 Jul 2008
  3. Decided - Granted6/2023/2439/HOUSE

    Erection of part single, part two storey rear extension, single storey front extension, garage conversion and infill extension of walkway, fenestration alterations, chimney removal

    57 Mymms Drive Brookmans Park Hatfield AL9 7AE

    Received 4 Dec 2023
  4. Decided - Granted6/2024/0175/EMT

    1 x Lime to repollard back to existing pruning points (approximately 2m)

    32 Blakemere Road Welwyn Garden City AL8 7PJ

    Received 29 Jan 2024
  5. Decided - Granted6/2023/1970/EMT

    T1, T2, T3 Apple trees - to fell old and unproductive trees T1 is growing out at an angle over the shed and greenhouse and T2 has widespread canker and bracket fungus on both main stems. T3 has canker and suffered very badly from a woolly aphid attack in the hot summer.

    31 Longcroft Lane Welwyn Garden City AL8 6EB

    Received 25 Sept 2023
  6. Decided - Granted6/2019/0553/EM

    Erection of a single storey front and side extension

    25 Elmwood Welwyn Garden City AL8 6LD

    Received 11 Mar 2019
  7. Decided - Granted6/2017/2257/EM

    Erection of single storey rear extension with alterations to openings following part demolition of existing party wall

    52 Bridge Road Welwyn Garden City AL8 6UR

    Received 25 Sept 2017
  8. Decided - GrantedN6/2015/0243/FP

    Roof extension incorporating dormers to provide additional accommodation

    16 Great North Road Welwyn AL6 0PL

    Received 5 Feb 2015
  9. Decided - Granted6/2018/1173/HOUSE

    Erection of a single storey rear extension

    1 Rooks Close Welwyn Garden City AL8 6JT

    Received 4 May 2018
  10. Decided - Granted6/2020/1470/EMT

    Fell 14x Conifer trees

    8 Little Wade, Welwyn Garden City, AL7 4LE

    Received 23 Jun 2020
  11. Decided - GrantedS6/2008/0132/FP

    ERECTION OF SINGLE STOREY AND TWO STOREY SIDE AND REAR EXTENSION, SINGLE STOREY FRONT EXTENSIONS, FIRST FLOOR SIDE EXTENSION; ALTERATIONS TO ROOF TO INCLUDE TWO DORMER WINDOWS TO REAR ROOF ELEVATION

    Brookmans House 71 Brookmans Avenue Brookmans Park Hatfield AL9 7QG

    Received 23 Jan 2008
  12. Decided - Granted6/2016/2574/PN25

    Application for certificate of appropriate alternative development

    36A Town Centre Hatfield AL10 0LD

    Received 24 Nov 2016
  13. Decided - GrantedS6/2014/0297/FP

    Erection of a single storey side extension, first floor front and rear extensions to include a replacement roof, an increase in ridge height, accommodation within roofspace, 3no. front dormer windows, 3no. Rear dormer windows, alterations to the chimneys and the erection of a porch

    32 Hill Rise, Cuffley, Potters Bar, EN6 4EJ

    Received 10 Feb 2014
  14. Decided - Granted6/2015/1721/LAWP

    Certificate of lawfulness for the proposed erection of a single storey side extension and detached leisure outbuilding

    1 Reynards Road Welwyn AL6 9TR

    Received 12 Aug 2015
  15. Decided - GrantedN6/2015/1476/FULL

    Change of use from ancillary basement to (D2) Assembly and Leisure

    4 Howardsgate Welwyn Garden City AL8 6BQ

    Received 9 Jul 2015
  16. Decided - GrantedW6/2007/1373/EM

    ERECTION OF SINGLE STOREY SIDE AND REAR EXTENSION FOLLOWING THE DEMOLITION OF EXISTING OUTBUILDING, AND INSTALLATION OF A SIDE FENCE AND GATE

    68 Springfields, Welwyn Garden City, AL8 6XN

    Received 17 Sept 2007
  17. Decided - GrantedN6/2014/0372/TC

    Removal of Poplar tree

    16 Marsden Road, Welwyn Garden City, AL8 6XZ

    Received 14 Feb 2014
  18. Decided - WithdrawnN6/2014/0641/FP

    Erection of two storey side extension

    47 Peartree Lane, Welwyn Garden City, AL7 3UA

    Received 28 Mar 2014
  19. Decided - Granted6/2020/3469/HOUSE

    Erection of rear dormer with juliet balcony

    19 Hanyards Lane Cuffley Potters Bar EN6 4AT

    Received 31 Dec 2020
  20. Decided - GrantedW6/2013/2653/TE

    Crown reduce Oak tree by 20%

    12 Roundwood Drive, Welwyn Garden City, AL8 7JZ

    Received 13 Dec 2013
  21. Decided - Granted6/2020/0092/HOUSE

    Erection of a two storey side and rear and a two storey rear extension and erection of an infill extension between the house and garage to facilitate garage conversion

    1 The Dell Digswell Welwyn AL6 0BQ

    Received 15 Jan 2020
  22. Decided6/2021/2510/TC

    1 x Cherry to reduce by 1.2m height & width and lift to 2.5m, 1 x Portugal Laurel to reduce by 0.5m height and reduce width 1m and balance crown

    159 Parkway Welwyn Garden City AL8 6JA

    Received 27 Aug 2021
  23. Decided - RefusedS6/2004/0943/FP

    ERECTION OF TWO STOREY SIDE EXTENSION, SINGLE STOREY REAR AND EXTENSION TO GARAGE AND PORCH.

    37 Peplins Way Brookmans Park Hatfield AL9 7UR

    Received 23 Jun 2004
  24. Decided - Granted6/2025/0309/EM

    Alterations to openings at rear of property, replacing fascia at front of property with new brick parapet, insertion of rooflights in flat roof, replacing front door & surround, block paving to front garden forming hard standing

    22 Guessens Road Welwyn Garden City AL8 6RA

    Received 19 Feb 2025

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