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
40,297Searchable applications
283Recorded as pending
86%Approval rate · 33,821 approved or refused records
4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 9 Nov 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

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 - Granted6/2016/0445/HOUSE

    Single storey rear infill extension

    13 Pentley Park, Welwyn Garden City, AL8 7RT

    Received 17 Mar 2016
  2. Decided - GrantedS6/2015/0132/FP

    Erection of two storey side extension, single storey rear extension and front porch extension

    3 Birchway Hatfield AL10 0PD

    Received 23 Jan 2015
  3. Decided - Granted6/2023/1995/EMT

    T5-Conifer-Fell to ground level as it has outgrown its position. T6-Sycamore-Reduce crown by 3-4 metres all round to maintain its size and shape over the garage. T7-Sycamore x 2-Crown reduce all round by 3-4 metres to maintain size and shape for the area. T8-Leylandii-Reduce in height by 4-5 metres to maintain size for the area.

    Land adjacent to 22 Elm Gardens Welwyn Garden City AL8 6RY

    Received 27 Sept 2023
  4. Decided - GrantedN6/2008/0832/FP

    ERECTION OF FOUR WOODEN PERGOLAS AND ASSOCIATED SCREENING TO EXISTING GARDEN SPACE.

    Queen Elizabeth Ii Hospital Howlands Welwyn Garden City AL7 4HQ

    Received 24 May 2008
  5. Decided - Granted6/2022/0554/TPO

    Limes tree x2 - Re-pollard the trees back to the main regrowth/previous pruning points.

    7 Copper Beeches Welwyn AL6 0SS

    Received 9 Mar 2022
  6. Decided - Granted6/2018/3206/HOUSE

    Reinstatement of the current burnt down squash court

    3 The Old Rectory Hill Farm Lane Welwyn AL6 9BT

    Received 17 Dec 2018
  7. Decided - Granted6/2019/3087/EM

    Crown reduction of 3 x Hornbeam trees by 33% (T1, T2 and T3)

    154 Parkway Welwyn Garden City AL8 6HZ

    Received 5 Dec 2019
  8. Decided - WithdrawnS6/2015/0992/FP

    Erection of single storey timber framed structure to rear

    42 Crawford Road Hatfield AL10 0PE

    Received 14 May 2015
  9. Decided - Granted6/2023/0798/EMT

    T1-Eucalyptus-Crown reduce all round by 3-4 metres to maintain size and shape for the area.

    53 Springfields, Welwyn Garden City, AL8 6XT

    Received 13 Apr 2023
  10. Decided - Granted6/2021/0131/COND

    Submission of details pursuant to condition 1 (Archaeological Evaluation) on planning permission 6/2020/0673/FULL

    6 Elmoor Avenue Welwyn AL6 9PA

    Received 18 Jan 2021
  11. Decided - GrantedN6/2008/1280/FP

    ERECTION OF TWO STOREY SIDE AND SINGLE STOREY REAR EXTENSION

    6 WALNUT COURT, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4EZ

    Received 23 Jul 2008
  12. Decided - GrantedS6/2010/0087/NM

    NON-MATERIAL AMENDMENTS TO PLANNING PERMISSION S6/2009/1740/MA: INTERNAL ALTERATIONS COMPRISING OF (I) RECONFIGURED WCS AND CLEANER’S STORE TO GROUND & FIRST FLOOR PLAN; (II) ADDITIONAL STORES TO GROUND FLOOR PLAN; (III) SWITCH ROOM TO GROUND FLOOR PLANT; (III) PATCH ROOM MOVED FROM GROUND TO FIRST FLOOR; AND (IV) DEDICATED ROOF ACCESS STAIR. EXTERNAL ALTERATIONS COMPRISING (I) ‘BRIDGE LINK’ TO NORTH EXTERNAL TEACHING SPACE; (II) ENLARGED & RELOCATED ROOF ACCESS HATCH; (III) TRIANGULAR ROOFLIGHT/ESTACK COWLS OMITTED ABOVE TEACHING ROOMS - VENTILATION COWL PROPOSED; (IV) HEIGHT AND NUMBER OF GLAZED ROOFLIGHTS ABOVE ATRIUM SPACE REDUCED; (V) PV CELLS TO ROOF; (VI) COURT LANTERN: GLAZING OMITTED - PROPOSED DARK RAINSCREEN CLADDING; (VII) PARAPET HEIGHT REDUCED BY APPROXIMATELY 200MM; (VIII) CANOPY HEIGHT INCREASED BY APPROXIMATELY 850MM; AND (XI) VERTICAL VENTILATION GRILLES AT GROUND LEVEL.

    UNIVERSITY OF HERTFORDSHIRE, DE HAVILLAND CAMPUS, MOSQUITO WAY, HATFIELD, HERTFORDSHIRE

    Received 26 Jan 2010
  13. Decided - Refused6/2022/1133/LAWP

    Certificate of Lawfulness for a proposed front porch.

    76 Birchwood Avenue Hatfield AL10 0PS

    Received 17 May 2022
  14. Decided - Refused6/2021/1271/HOUSE

    Erection of part single and part two storey rear extension and replacement porch canopy

    51 Hall Grove Welwyn Garden City AL7 4PQ

    Received 20 Apr 2021
  15. Decided - Granted6/2024/0359/EMT

    1 x Silver Birch to reduce by 2m height and 2m width; and 3 x lowest branches to be shortened by around 3.5m.

    62 Pentley Park Welwyn Garden City AL8 7SG

    Received 26 Feb 2024
  16. Decided - GrantedW6/2013/2557/TE

    Removal of Sycamore tree

    13 Monks Rise, Welwyn Garden City, AL8 7NF

    Received 26 Nov 2013
  17. Decided - Granted6/2020/0130/COND

    Submission of details pursuant to conditions 1 and 3 (sedum roof species mix, the growing medium, the irrigation proposals and the maintenance plan) on planning application 6/2018/2944/HOUSE

    2 Elm Gardens Welwyn Garden City AL8 6RY

    Received 20 Jan 2020
  18. Decided6/2026/1729/TC

    1 x Ash to reduce by 2m height and 2m width. Remove deadwood greater than 30mm in diameter.

    36 Attimore Road Welwyn Garden City AL8 6LP

    Received 30 Sept 2026
  19. Decided - Granted6/2017/0235/FULL

    Erection of a detached house with garage, parking area and gazebo within rear garden

    28 High Oaks Road Welwyn Garden City AL8 7BH

    Received 9 Feb 2017
  20. Decided - Refused6/2017/2737/EM

    Installation of 1 x UPVC window to facilitate conversion of existing garage to habitable space, following removal of the up/over door

    11 The Jinnings Welwyn Garden City AL7 4QB

    Received 23 Nov 2017
  21. Decided - Granted6/2025/0017/HOUSE

    Erection of single storey rear extension and outbuilding

    4 The Pastures Welwyn Garden City AL7 4PX

    Received 6 Jan 2025
  22. Decided - GrantedN6/2014/1090/FP

    Erection of single storey side/rear extension and first floor rear extension

    21E Canonsfield Welwyn AL6 0QB

    Received 14 May 2014
  23. Decided - Granted6/2021/3078/HOUSE

    Erection of single storey front extension and single storey rear extension.

    43 Sloansway Welwyn Garden City AL7 1NA

    Received 27 Oct 2021
  24. Decided - GrantedW6/2008/0958/EM

    ERECTION OF SINGLE STOREY REAR EXTENSION

    126 BLYTHWAY, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1ED

    Received 21 Jun 2008

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

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Researching a proposal in Welwyn Hatfield Borough Council

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How to search planning applications

Guides to planning records

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  • 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.

  • 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.

  • 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.

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