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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
40,250Searchable applications
321Recorded as pending
86%Approval rate · 33,746 approved or refused records
4,812Refused applications

28,934 approved · 4,812 refused · 2,213 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 6 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedS6/2004/0710/FP

    ERECTION OF WOODEN TRELLIS ABOVE EXISTING WOODEN FENCE.

    46 Vineyards Road Northaw Potters Bar EN6 4PA

    Received 10 May 2004
  2. Decided - GrantedS6/2015/1471/NM

    Non material amendment following approval of planning permission S6/2014/1696/FP - Additional window to kitchen areas and large feature window facing rear gardens designs altered plus additional car parking space adjacent to garage serving plot 4.

    2 Hill Rise, Potters Bar, EN6 4EE

    Received 8 Jul 2015
  3. Decided - GrantedS6/2013/2531/FP

    Erection of rear single storey outbuilding for ancillary use

    32A Brookmans Avenue, Brookmans Park, Hatfield, AL9 7QJ

    Received 28 Nov 2013
  4. Decided - GrantedN6/2014/2227/AD

    Installation of 1x illuminated fascia sign, 1x illuminated hanging sign and 2x other signs

    32 Howardsgate, Welwyn Garden City, AL8 6BB

    Received 9 Oct 2014
  5. Decided - GrantedW6/2007/0910/EM

    ERECTION OF 2 STOREY SIDE EXTENSION & INSERTION OF REAR FRENCH DOORS

    8 Haynes Close, Welwyn Garden City, AL7 3EP

    Received 14 Jun 2007
  6. Decided - Granted6/2017/0082/PN8

    Prior approval for the erection of a single storey pitched roof rear extension measuring 4m. in depth, 3.8m. in height and 2.8m. to the eaves

    10 New Road Woolmer Green Knebworth SG3 6JX

    Received 17 Jan 2017
  7. Decided - Granted6/2016/2213/EM

    Erection of a Garden Room. 5.5m x 4.2m x 2.43m H, clad in cedar wood with mono pitch roof

    12 Willow Grove Welwyn Garden City AL8 7NA

    Received 21 Oct 2016
  8. Decided - Refused6/2019/1718/HOUSE

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

    16 Roe Green Close Hatfield AL10 9PE

    Received 12 Jul 2019
  9. Decided - GrantedW6/2014/1334/EM

    Erection of two storey side extension

    47 Peartree Lane, Welwyn Garden City, AL7 3UA

    Received 12 Jun 2014
  10. Decided - GrantedS6/2009/2616/DS

    DISCHARGE OF CONDITIONS 3 (MATERIALS), 4 (DRAINAGE), 5 (LANDSCAPING), 8 (WHEEL WASHING), 9 (LIGHTING), 10 (FOUL & SURFACE WATER), 11 (FOUL DRAINAGE), 12 (SUSTAINABLE DRAINAGE) 16 (PARKING) FROM PLANNING PERMISSION S6/2008/0894/MA

    DE HAVILLAND HOUSE, ENDYMION MEWS, HATFIELD, HERTFORDSHIRE, AL10 0EW

    Received 3 Dec 2009
  11. Decided - Granted6/2021/0385/LB

    Removal and replacement of the existing flat roof membrane with a new single ply roofing membrane. The existing rooflights are to be retained and dressed appropriately.

    Cockaigne Housing Group Clubhouse 69 The Ryde Hatfield AL9 5DN

    Received 8 Feb 2021
  12. Decided - GrantedW6/2014/0375/EM

    Conversion of garage into habitable accommodation and enlargement of vehicle hardstanding

    11 The Vineyard, Welwyn Garden City, AL8 7PY

    Received 17 Feb 2014
  13. Decided - GrantedN6/2010/0166/TE

    REMOVAL OF SYCAMORE TREE LOCATED IN REAR GARDEN

    42 HANDSIDE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SJ

    Received 15 Jan 2010
  14. Decided - Granted6/2026/0268/HOUSE

    Erection of outbuilding in rear garden

    Ponsbourne Manor Topthorn House 5 The Ridings Newgate Street Village Hertford SG13 8QX

    Received 16 Feb 2026
  15. Decided - GrantedS6/2008/2460/FP

    CHANGE OF USE FROM TWO BEDROOM DWELLING TO 2NO. ONE BED FLATS

    29A SALISBURY SQUARE, HATFIELD, HERTFORDSHIRE, AL9 5JD

    Received 16 Jan 2009
  16. Decided - Granted6/2018/0380/EM

    Trim top and sides of 1 x Yew tree, reduce overhang of 1 x Apple tree and reduce overhang of 1 x Yew tree to neighbours garden by 2m and trim top and sides all by 25 %

    5 Homerfield Welwyn Garden City AL8 6QZ

    Received 6 Feb 2018
  17. Decided - Granted6/2021/3113/LAWP

    Certificate of lawfulness for the erection of single storey rear extension, roof extension with enlarged rear dormer window and 3no. rooflights to front elevation.

    31 School Lane Welwyn AL6 9PQ

    Received 1 Nov 2021
  18. Decided - Granted6/2021/0684/EM

    Erect a 3ft high fence on boundary line between driveways of no. 23 and no. 25 to provide enclosure of each drive and privacy.

    25 Daniells Welwyn Garden City AL7 1QY

    Received 2 Mar 2021
  19. Decided - Granted6/2021/2723/HOUSE

    Erection of a two storey rear extension

    43 The Crescent Welwyn AL6 9JG

    Received 21 Sept 2021
  20. Decided - GrantedN6/2013/2024/TP

    Fell ash, fell sycamore, crown lift 2 x birch, reduce 2 sycamore & 2 horse chestnut, crown raise the perimeter trees to clear road and footpath, covered by TPO 260.

    4 Mornington Digswell Welwyn AL6 0AJ

    Received 17 Sept 2013
  21. Decided - GrantedN6/2009/2729/TC

    THIN SYCAMORE TREE BY 25% LOCATED IN REAR GARDEN

    4 HANDSIDE CLOSE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 6SR

    Received 24 Dec 2009
  22. Decided - Granted6/2021/3195/PN15

    Prior approval for the installation of proposed 16.0m Phase 8 Monopole C/W wraparound Cabinet at base and associated ancillary works.

    College Lane Hatfield AL10 9AA

    Received 8 Nov 2021
  23. Decided - GrantedN6/2013/2470/TC

    Reduce Bay tree by 33%

    27 Barleycroft Road, WELWYN GARDEN CITY, AL8 6JX

    Received 7 Nov 2013
  24. Decided - Granted6/2015/2107/TPO

    Fell Lawson Cypress tree to ground level - Conservation Area.

    5 Barleycroft Green, Welwyn Garden City, AL8 6JY

    Received 12 Oct 2015

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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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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