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

39,623Searchable applications

344Recorded as pending

86%Approval rate · 33,168 approved or refused records

4,742Refused applications

28,426 approved · 4,742 refused · 2,168 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 building Local plan Our Local Plan Pre-application advice Pre-application advice (planning applications)Conservation areas Schedule of properties removed from the Welwyn Conservation Area Article 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

Decided - GrantedW6/2013/2544/EM
Erection of single storey side and rear extensions
33 Woodland Rise, Welwyn Garden City, AL8 7LJ
Received 26 Nov 2013
Decided - RefusedS6/2014/0525/FP
Erection of front boundary wall, brick piers, railings and gates
83 Tolmers Road, Cuffley, Potters Bar, EN6 4JJ
Received 13 Mar 2014
Decided - Granted6/2017/2295/EM
Removal of Cypress Tree
62 Pentley Park Welwyn Garden City AL8 7SG
Received 6 Oct 2017
Decided - GrantedW6/2008/1190/EM
ALTERATIONS TO REAR ELEVATION INCLUDING RAISING PART OF REAR GARAGE ROOF, ENLARGEMENT OF REAR WINDOW AND REPLACEMENT OF EXISTING SIDE DOOR WITH FRENCH DOORS
334 KNIGHTSFIELD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7NQ
Received 12 Jul 2008
Decided - Granted6/2021/0531/HOUSE
Erection of single storey flat roof porch and insertion of bifold doors to rear
72 Herns Lane Welwyn Garden City AL7 2AH
Received 18 Feb 2021
Decided - Granted6/2016/2559/LB
Expansion of existing kitchen involving the reworking of internal layout including the removal of part height dividing wall and installation of ramp walkway in place of step at ground floor level and installation of first floor customer WC.
Taj Mahal 2 High Street Welwyn AL6 9EQ
Received 1 Dec 2016
Decided - Granted6/2021/1622/HOUSE
Erection of single storey rear extension
2 The Beeches Welwyn AL6 9LE
Received 20 May 2021
Decided - GrantedN6/2014/1944/FP
Erection of single storey rear extension
21 Bracken Lane Welwyn AL6 0RB
Received 1 Sept 2014
Decided - Granted6/2024/0223/TPO
Reduce and reshape crown of 1 x oak tree by 20% covered by TPO 558 (2016)
27 Mardley Wood Welwyn AL6 0UY
Received 5 Feb 2024
Decided - Granted6/2021/2469/EMH
Erection of a single storey rear extension following the demolition of existing conservatory
120 Thistle Grove Welwyn Garden City AL7 4AQ
Received 23 Aug 2021
Decided - Granted6/2016/0820/HOUSE
Proposed single storey rear extension for the creation of a disabled accessible bedroom and shower room
25 Hawbush Rise Welwyn AL6 9PR
Received 3 May 2016
Decided - Granted6/2019/0871/EM
Erection of a rear conservatory following the demolition of existing single storey rear extension
34 The Commons Welwyn Garden City AL7 4RP
Received 10 Apr 2019
Decided - Granted6/2017/0006/HOUSE
Erection of single storey rear extension.
43 Huggins Lane Welham Green Hatfield AL9 7LJ
Received 4 Jan 2017
Decided - Granted6/2022/1196/HOUSE
Erection of single side extension and two storey rear extension with insertion of roof lights
31 Attimore Road Welwyn Garden City AL8 6LQ
Received 24 May 2022
Decided - Refused6/2018/2895/EM
Erection of single storey rear extension
47 Woodhall Lane Welwyn Garden City AL7 3TB
Received 12 Nov 2018
Decided - Granted6/2019/2017/HOUSE
Alterations to fenestration, erection of a single storey rear extension, and demolition of conservatory
23 Roundwood Drive Welwyn Garden City AL8 7JZ
Received 13 Aug 2019
Decided - Refused6/2017/2512/HOUSE
Erection of single-storey extension to North elevation and replacement of existing double pitched roof with flat roof of existing garden annexe.
2 Church Cottages Bibbs Hall Lane Welwyn AL6 9BZ
Received 31 Oct 2017
Decided - GrantedW6/2014/0676/TE
Reduce Two Beech trees by upto 30%
3 The Glade Welwyn Garden City AL8 7LG
Received 25 Mar 2014
Decided - Granted6/2025/0034/LB
Installation of new and replacement windows and doors, blocking existing doors and windows, new metal mesh balustrading, internal alterations, relaying driveway, terrace and steps, erection of timber fence and gate
26 Pentley Park Welwyn Garden City AL8 7SB
Received 9 Jan 2025
Decided6/2021/2940/TC
1 x Cherry to reduce by 2m height & 1.2m width; Lift to 2.4m above ground level
24 Beehive Green Welwyn Garden City AL7 4BG
Received 13 Oct 2021
Decided - Granted6/2017/1093/EM
Fell 2 large conifer trees in rear garden
40 Brockswood Lane Welwyn Garden City AL8 7BG
Received 22 May 2017
Decided - Granted6/2020/3222/MAJ
Demolition of existing buildings and construction of new building comprising 118 residential apartments, layout of parking areas, landscaping, electricity substation and ancillary development.
Former Volkswagen Van Centre Comet Way Hatfield AL10 9TF
Received 1 Dec 2020
Decided - GrantedS6/2008/0630/LB
REPLACEMENT OF EXISTING WINDOWS
9 NORTHAW ROAD WEST, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4NW
Received 27 Mar 2008
Decided - GrantedW6/2014/2303/TE
Removal of Birch tree
83 Valley Road, Welwyn Garden City, AL8 7DR
Received 20 Oct 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

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 16 Jul 2026Updated 13 Sept 2026
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 6 Aug 2026Updated 13 Sept 2026
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 13 Aug 2026Updated 13 Sept 2026

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