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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
40,146Searchable applications
300Recorded as pending
86%Approval rate · 33,676 approved or refused records
4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 1 Nov 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/2624/FULL

    Erection of new dwelling with front landscaping following the demolition of existing dwelling

    19 The Avenue Welwyn AL6 0PW

    Received 30 Dec 2025
  2. Decided - Granted6/2023/1137/FULL

    Change of use of amenity land to residential, following the removal and replacement of boundary wall with new brick wall, grass and hedging

    2 Brooksfield Welwyn Garden City AL7 2BJ

    Received 30 May 2023
  3. Decided - GrantedN6/2008/1223/TP

    THIN CROWN AND CUT BACK BY 25% GROUP OF HORNBEAMS COVERED BY TPO 69 G3

    11 Oak Piece Welwyn AL6 0XE

    Received 16 Jul 2008
  4. Decided - GrantedS6/2006/0637/FP

    TWO STOREY SIDE EXTENSION, PITCHED ROOF TO EXISTING SINGLE STOREY SIDE EXTENSION, ENLARGEMENT OF SINGLE STOREY SIDE EXTENSION, INFILL OF REAR OF THE PROPERTY AND ALTERATIONS TO FRONT ROOF TO INCORPORATE DORMER WINDOW.

    20 Sycamore Avenue Hatfield AL10 8LZ

    Received 17 May 2006
  5. Decided - GrantedS6/2009/1342/FP

    ERECTION OF TWO STOREY SIDE EXTENSION

    1 East Lodge Great North Road Hatfield AL9 5JX

    Received 26 Jun 2009
  6. Decided - Granted6/2022/2849/COND

    Submission of details pursuant to condition 5 (external lighting scheme) on planning permission S6/2015/1342/PP

    Northaw And Cuffley Bowling Club King George V Playing Field Northaw Road East Cuffley Potters Bar EN6 4RD

    Received 16 Dec 2022
  7. Decided - Granted6/2020/1091/HOUSE

    Erection of single storey front porch and canopy, single storey side, two storey rear extension, increase in roof height with installation of rear dormers

    13 Bradgate Cuffley Potters Bar EN6 4RW

    Received 14 May 2020
  8. Decided - Granted6/2018/1026/EM

    Fell 1x variegated acer tree

    1 Homerfield Welwyn Garden City AL8 6QZ

    Received 18 Apr 2018
  9. Decided - Granted6/2021/2400/FULL

    Expansion of office space into adjacent storage area, installation of 1 x window to front elevation and relocation of signage

    Unit 1 Travellers Close Welham Green Hatfield AL9 7JL

    Received 16 Aug 2021
  10. Decided - GrantedS6/2014/2671/LUP

    Certificate of lawfulness for a roof extension to include hip to gable enlargement and installation of rear dormer and 2 velux roof windows in existing front roof slope

    39 Oaklands Avenue, Brookmans Park, Hatfield, AL9 7UH

    Received 11 Dec 2014
  11. Decided - GrantedW6/2014/2307/EM

    Enlargement to existing hardstanding

    16 Sherrardspark Road, Welwyn Garden City, AL8 7JP

    Received 17 Oct 2014
  12. Decided - GrantedS6/2015/1400/LUP

    Certificate of lawfulness for the proposed erection of single storey side extension

    9 Georges Wood Road, Hatfield, AL9 7BY

    Received 30 Jun 2015
  13. Decided - Granted6/2025/2429/HOUSE

    Installation of windows to roof and loft conversion

    19 Yew Grove Welwyn Garden City AL7 2HY

    Received 19 Nov 2025
  14. Decided - GrantedS6/2006/0319/LU

    CERTIFICATE OF LAWFULNESS (PROPOSED) FOR LOFT CONVERSION INCORPORATING HIP TO GABLE ENLARGEMENT OF ROOF AND REAR DORMER WINDOW AND ROOFLIGHT TO FRONT ROOF SLOPE.

    11 Oaklands Avenue Brookmans Park Hatfield AL9 7UH

    Received 14 Mar 2006
  15. Decided - Granted6/2025/2143/LAWP

    Certificate of lawfulness for the erection of two single storey side extensions, flat roof porch and flat roof outbuilding

    19 The Avenue Welwyn AL6 0PW

    Received 8 Oct 2025
  16. Decided - GrantedW6/2006/0306/EM

    ERECTION OF REAR CONSERVATORY

    13 Meadow Green, Welwyn Garden City, AL8 6SS

    Received 13 Mar 2006
  17. Decided - GrantedN6/2008/2031/LU

    CERTIFICATE OF LAWFULNESS FOR THE PROPOSED ERECTION OF ENCLOSURE TO EXISTING SWIMMING POOL AND ERECTION OF OUTBUILDING

    38 Reynards Road Welwyn AL6 9TP

    Received 21 Oct 2008
  18. Decided - Withdrawn6/2017/1259/EM

    Erection of a part single storey side, first floor side and first floor rear extension with alterations to openings, following the removal of existing shed.

    120 Handside Lane Welwyn Garden City AL8 6SZ

    Received 8 Jun 2017
  19. Decided - Granted6/2021/0273/COND

    Submission of details pursuant to condition 11 (Soft Landscaping Works), on planning permission 6/2019/1382/FULL

    Kellard House (formally Entech House) Woolmer Green SG3 6JE

    Received 29 Jan 2021
  20. Decided - Refused6/2025/1921/HOUSE

    Erection of first floor front dormer extension, replacement roof to existing front dormer, enlargement of rear dormer, enlargement of front porch and garage conversion. Alterations to the fenestration and internal alterations, re tile house and render existing brickwork

    16 Marlborough Close Welwyn AL6 0UG

    Received 8 Sept 2025
  21. Decided - GrantedS6/2014/2170/DS

    Approval of details reserved by condition 4 (remediation) and 5 (soft landscaping) of S6/2014/1097/FP

    Garages at, Wood Close, Hatfield, AL10 8TY

    Received 2 Oct 2014
  22. Decided - Refused6/2021/3014/LB

    Erection of a single storey rear extension

    17 Danesbury Park North Ride Welwyn AL6 9SA

    Received 20 Oct 2021
  23. Decided - GrantedS6/2014/2268/LUP

    Certificate of lawfulness for a front porch and conversion of laundry room to internal utility room

    35 Travellers Lane, Hatfield, AL10 8SB

    Received 14 Oct 2014
  24. Decided - GrantedW6/2014/1857/EM

    Resurfacing of existing hardstanding

    14 The Valley Green, Welwyn Garden City, AL8 7DQ

    Received 19 Aug 2014

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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Guides to planning records

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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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