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

35,718Searchable applications

331Recorded as pending

86%Approval rate · 29,757 approved or refused records

4,033Refused applications

25,724 approved · 4,033 refused · 1,872 withdrawn. Received dates in our records: 29 Apr 1948 to 16 Oct 2026. Most recent record check: 23 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2019/1627/FULL
Alterations to shop front
21 Stonehills Welwyn Garden City AL8 6NA
Received 3 Jul 2019
Decided - Granted6/2023/1606/EM
Installation of hardstanding
25 Colgrove Welwyn Garden City AL8 6HY
Received 2 Aug 2023
Appeal Decided - Dismissed6/2017/1901/FULL
Erection of 4 x apartments following demolition of existing workshop
2 New Road Welwyn Garden City AL8 7TX
Received 24 Aug 2017
Decided - Refused6/2019/0062/HOUSE
Erection of a two storey rear extension
11 Cecil Crescent Hatfield AL10 0HF
Received 14 Jan 2019
Decided - GrantedS6/2014/1923/FP
Alterations to hipped roof to create gable ended roof, erection of rear dormer and installation of 3 front facing roof lights
9 Sutherland Way, Cuffley, Potters Bar, EN6 4EG
Received 29 Aug 2014
Decided - Granted6/2017/2960/EM
Erection of single storey rear extension, new rear terrace patio and front hardstanding
223 Knightsfield Welwyn Garden City AL8 7QL
Received 21 Dec 2017
Decided6/2018/2972/TPO
G1 Shelter belt of mixed species trees crown raise first line of trees where trees encroach on parking spaces to 2-3 meters -Conservation Area
Waitrose Ltd Bridge Road Welwyn Garden City AL8 6AB
Received 19 Nov 2018
Decided - Granted6/2019/2557/COND
Submission of details pursuant to condition 1 (remediation), 2 (tree protection plan), 3 (sample of materials) and 4 (hard and soft landscaping) on planning permission 6/2019/0091/FULL
Sparrow Farm, Newgate Street Village, Hertford, SG13 8QR
Received 11 Oct 2019
Decided - GrantedS6/2014/1576/LUE
Certificate of lawfulness for existing use as House in Multiple Occupation (C4)
122 Mosquito Way, Hatfield, AL10 9AY
Received 11 Jul 2014
Decided - Granted6/2017/2226/COND
Submission of details pursuant to condition 5 (refuse and recycling) on planning permission 6/2016/2214/MAJ
Gate House Fretherne Road Welwyn Garden City AL8 6NS
Received 2 Oct 2017
Decided - GrantedN6/2015/0946/FP
Erection of single storey side extension
1A Copse Hill Welwyn AL6 0SG
Received 6 May 2015
Decided - GrantedW6/2008/0011/EM
SINGLE STOREY SIDE EXTENSION TO GARAGE AND EXTERNAL ALTERATIONS FOR CONVERSION OF GARAGE
53 PEARTREE LANE, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 3UA
Received 2 Jan 2008
Decided - Granted6/2025/1586/TPO
TPO 39 T6 Beech to 25% crown reduction.
5 Jenning Wood Welwyn AL6 0SL
Received 23 Jul 2025
Decided - Granted6/2022/2781/HOUSE
Erection of single storey rear extension, garden office/study room and pergola, air conditioning/ashp units and solar panels to roofs
21 St Josephs Green Welwyn Garden City AL7 4TT
Received 7 Dec 2022
Decided - Granted6/2017/2175/HOUSE
Erection of first floor extension to front elevation, enclose existing side porch and move existing porch door to rear plus installation of bi folding doors to rear elevation
107 Newgate Street Village Hertford SG13 8QR
Received 26 Sept 2017
Decided - Granted6/2018/1530/PN14
Prior Approval for the demolition of existing office building
51 Bridge Road East Welwyn Garden City AL7 1JR
Received 8 Jun 2018
Decided - Granted6/2022/2225/EM
Replacement of wide gates and run of fence at rear of property with narrower gates and longer run of fence.
33 Springfields Welwyn Garden City AL8 6XT
Received 26 Sept 2022
Appeal Decided - AllowedN6/2014/0084/FP
Erection of two storey side extension
60 Hertford Road Digswell Welwyn AL6 0BX
Received 16 Jan 2014
Decided - Granted6/2018/0835/HOUSE
Erection of a single storey rear and part first floor rear extension following the demolition of existing conservatory and alterations to the roof to include the erection of a rear gable end wall with pitch roof along side elevation to accommodate 6 x side dormer windows
26 Georges Wood Road Brookmans Park Hatfield AL9 7BT
Received 29 Mar 2018
DecidedS6/2014/0908/RW
Modification Order to amend Definitive Map of Public Rights of Way in the North Mymms Area
North Mymms 6 & 82, North Mymms, Hatfield, AL9 7TH
Received 25 Apr 2014
Decided - Withdrawn6/2021/0769/PN8
Prior approval for the erection of a single storey rear extension measuring 4m in depth, 3.10m in height, 2.85m to the eaves
70 Heronswood Road Welwyn Garden City AL7 3ES
Received 9 Mar 2021
Decided - Withdrawn6/2021/1276/VAR
Variation of condition 8 (accessible housing) and condition 26 (drawing numbers) on planning permission 6/2020/0712/VAR for (Variation of conditions 5 (surface water drainage assessment) 18 (acoustic fencing) 21 (soft landscaping - planting and seeding) 22 (soft landscaping - boundary hedges) and 26 (drawing numbers) on planning permission 6/2018/3110/MAJ for redevelopment of the site including erection of 110 residential unit in a mix of houses and flats with supporting infrastructure including car parking and public open space following demolition of all existing buildings).
1 Bessemer Road Welwyn Garden City AL7 1GF
Received 21 Apr 2021
Decided6/2023/2018/TC
Reduce 3 x Oak Trees (T1, T2, T3) crowns by 3m and thin crowns by 10-15% Reduce to previous pollard point 1 x Hornbeam tree (T4)
5 Woodland Rise Welwyn Garden City AL8 7LE
Received 2 Oct 2023
Decided - GrantedN6/2009/0774/FP
ERECTION OF FIRST FLOOR SIDE AND SINGLE STOREY REAR EXTENSIONS
23 SHERRARDSPARK ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7JW
Received 8 May 2009

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
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Published 16 Jul 2026Updated 13 Sept 2026
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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.
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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.
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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