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28,874 approved · 4,802 refused · 2,208 withdrawn.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: 2 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 Counts reflect the last collected status; some records may be out of date.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 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 - Granted6/2015/2091/HOUSE
Erection of a single storey front extension and alterations to openings
2 Stirling Way, Welwyn Garden City, AL7 2QA
Received 8 Oct 2015
Decided - GrantedN6/2012/2604/FP
Installation of 2 metre high timber fence
7A & 7B Hall Grove, WELWYN GARDEN CITY, AL7 4PJ
Received 11 Dec 2012
Decided - RefusedN6/2014/0916/FP
Demolition of redundant outbuildings, conversion and extension of existing barns to form 1 x 5 bed dwelling and 1 x 2 bed dwelling, diversion of public footpath and associated landscape works
Roebuck Farm, 57 Lemsford Village, Welwyn Garden City, AL8 7TR
Received 11 Apr 2014
Decided - GrantedS6/2004/1457/FP
ERECTION OF SINGLE STOREY FRONT, SIDE, AND REAR EXTENSIONS FOLLOWING REMOVAL OF EXISTING GARAGE
14 Astwick Avenue Hatfield AL10 9LA
Received 4 Oct 2004
Decided - GrantedS6/2014/0398/LUP
Certificate of Lawfulness for erection of single storey rear extension
67 Birchwood Avenue Hatfield AL10 0PR
Received 24 Feb 2014
Decided - Granted6/2023/1344/COND
Submission of details pursuant to condition 11 (Air ventilation, extraction and odour control) on planning permission 6/2022/0366/VAR
Land adjacent to 45 Broadwater Road Welwyn Garden City AL7 3AX
Received 29 Jun 2023
Decided - Granted6/2021/3088/HOUSE
Installation of a garden "rotating seater pod" in back garden.
30 Coneydale Welwyn Garden City AL8 7RZ
Received 28 Oct 2021
Decided - Granted6/2017/1058/HOUSE
Retention of a wooden structure at rear of property
36 Springfields Welwyn Garden City AL8 6XN
Received 15 May 2017
Decided - GrantedW6/2013/2396/TE
Conifer tree to be felled and second Conifer tree to have crown lifted by 30%
36 Longcroft Lane, Welwyn Garden City, AL8 6EF
Received 30 Oct 2013
Decided - Granted6/2015/2502/LB
Change of paint colour of St Mary's gate and railings
Mansion House, North Mymms Park, Tollgate Road, North Mymms, Hatfield, AL9 7TR
Received 16 Dec 2015
Decided - Granted6/2024/0261/HOUSE
Erection of front porch extension
26 Heron Way Hatfield AL10 8QL
Received 7 Feb 2024
Decided - WithdrawnN6/2014/1178/FP
Garage conversion to habitable accommodation
4 Great Sampsons Field, Welwyn Garden City, AL7 1FW
Received 23 May 2014
Decided - Granted6/2023/1743/EM
Erection of a rear garden room for office use
13 Marley Road Welwyn Garden City AL7 4BT
Received 17 Aug 2023
Decided6/2018/2272/TPO
Pollard 2 x Poplar trees - covered by conservation area
11 Elmwood Welwyn Garden City AL8 6LD
Received 5 Sept 2018
Decided - GrantedW6/2007/0578/EM
ERECTION OF SINGLE STOREY REAR EXTENSION.
3 Long Ley, Welwyn Garden City, AL7 2HE
Received 10 Apr 2007
Decided - GrantedS6/2004/1631/FP
LOFT CONVERSION COMPRISING OF ENLARGEMENT OF ROOF, SIDE DORMER AND REAR DORMER WITH FULL HEIGHT WINDOWS
29 The Gardens Brookmans Park Hatfield AL9 7UL
Received 4 Nov 2004
Decided - RefusedN6/2013/0780/FP
Erection of first floor rear, single storey side extensions, front storm porch and garage following demolition of existing garage and store
28 Brocket Road, WELWYN GARDEN CITY, AL8 7TY
Received 15 Apr 2013
Decided - Granted6/2022/0408/HOUSE
Hip to gable roof conversion, installation of rear dormer and erection of a single storey rear extension
22 Westland Drive Hatfield AL9 7UQ
Received 22 Feb 2022
Decided - Granted6/2016/2705/COND
Approval of details reserved by condition 3 (Hard & soft landscape) 4 (Materials) and 7 (Boundary treatment) on planning permission 6/2015/2356/FULL
Land to the rear of 19-21 Furzen Crescent Hatfield AL10 9QN
Received 21 Dec 2016
Decided - Granted6/2016/0916/HOUSE
Replacement of front porch
3 Broadfield Road Woolmer Green Knebworth SG3 6LZ
Received 11 May 2016
Decided - GrantedS6/2013/1059/LUP
Certificate of proposed lawfulness for the erection of single storey rear extension
53 Homewood Avenue, Cuffley, POTTERS BAR, EN6 4QQ
Received 21 May 2013
Decided - GrantedW6/2008/2457/EM
INSTALLATION OF SATELLITE DISH
79 SWEET BRIAR, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3EB
Received 19 Dec 2008
Decided - Refused6/2020/0287/FULL
Retention of converted garage as a self-contained residential unit
182 Dragon Road Hatfield AL10 9NZ
Received 31 Jan 2020
Decided - Granted6/2024/0564/HOUSE
Erection of a single storey rear extension/conservatory
6 Station Road Digswell Welwyn AL6 0DG
Received 21 Mar 2024

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