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

40,297Searchable applications

303Recorded as pending

86%Approval rate · 33,806 approved or refused records

4,819Refused applications

28,987 approved · 4,819 refused · 2,218 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 8 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 Counts reflect the last collected status; some records may be out of date.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 - GrantedN6/2014/1876/TP
fell pine tree (A5) covered by TPO24 (A3)
10 Mardley Heights Welwyn AL6 0TX
Received 22 Aug 2014
Decided - Granted6/2020/0155/HOUSE
Erection of detached garage
Springfield Cottage Coopers Lane Northaw Potters Bar EN6 4NG
Received 22 Jan 2020
Decided - GrantedN6/2014/0901/LUP
Certificate of lawfulness for proposed erection of garage
34 Reynards Road Welwyn AL6 9TP
Received 23 Apr 2014
Decided - RefusedN6/2008/2105/DS
DISCHARGE OF CONDITIONS 9 (LANDSCAPING) AND 10 (PLANTING) OF PLANNING PERMISSION N6/2008/0935/MA
Rosanne House Parkway Welwyn Garden City AL8 6HG
Received 5 Nov 2008
Decided - RefusedS6/2013/1562/FP
Erection of 4 bed end of terrace dwelling
150 Dixons Hill Road, Welham Green, Hatfield, AL9 7DN
Received 24 Jul 2013
Decided - Withdrawn6/2020/1997/FULL
Demolition of 21 garages and erection of terrace of of 6 x 2 bedroom dwellings and 1 x 3 bedroom dwelling with associated parking and landscaping
Garages and Former Allotment Site Haseldine Meadows Hatfield AL10 8HB
Received 11 Aug 2020
Decided - GrantedN6/2014/0085/FP
Refurbishment of existing scout hut and installation of ramped access
1st Welwyn Scout Group, Lockleys Drive Scout Hut, Lockleys Drive, Welwyn, AL6 9NT
Received 15 Jan 2014
Decided - GrantedS6/2015/1463/LAWP
Certificate of Lawfulness for proposed loft conversion
1 Bluebridge Avenue, Brookmans Park, Hatfield, AL9 7RY
Received 7 Jul 2015
Decided - Granted6/2025/1550/HOUSE
Erection of a new ancillary outbuilding following the demolition of three ancillary outbuildings
2 Whitehill Welwyn AL6 9AF
Received 18 Jul 2025
Decided6/2024/2182/TC
T1 Birch tree to fell T2 Birch tree to fell
22 Fordwich Road Welwyn Garden City AL8 6EY
Received 12 Nov 2024
Decided - SplitN6/2014/0225/TP
Fell Oak and Scots Pine covered by TPO 24 A3
2 Mardley Heights Welwyn AL6 0TX
Received 27 Jan 2014
Decided - Granted6/2024/0478/HOUSE
Erection of garden room
158 Tolmers Road Cuffley Potters Bar EN6 4JR
Received 12 Mar 2024
Decided - GrantedS6/2007/1463/AD
INSTALLATION OF INTERNALLY ILLUMINATED FASCIA SIGNS
13 PARKHOUSE COURT, HATFIELD, HERTS, AL10 9RQ
Received 4 Oct 2007
Decided - Granted6/2020/2815/HOUSE
Erection of timber frame garden building
67 Valley Road Welwyn Garden City AL8 7DR
Received 28 Oct 2020
Decided - GrantedW6/2013/0061/EM
Formation of new front door and gates on front elevation and installation of satellite dish on rear elevation
5 Elmwood, WELWYN GARDEN CITY, AL8 6LD
Received 14 Jan 2013
Decided - GrantedS6/2004/1395/FP
ERECTION OF CATTLE POLE BARN
BOLTONS PARK FARM, HAWKSHEAD ROAD, NORTH MYMMS, HERTFORDSHIRE, EN6 1NB
Received 17 Sept 2004
Decided - Granted6/2025/0242/EMT
T1 & T2 - 2 x Sycamore to reduce lateral branches over hanging neighbours garden by approximately 2-2.5m. Remove low limb on first tree over garden, remove 3 limbs on second tree over magnolia.Large overhanging branches causing a nuisance to neighbours. Removing secondary branches over lawn to provide space and light for smaller plants and shrubs T3 & T4 2 x Norway maple to remove low limbs over lawn area, reduce remaining laterals over lawn by 1.5m. Reduce laterals to open up lawn area T5 & T6 2 x Plum to remove in sections to ground level. Grind out stumps to approximately 200mm below existing ground level. Over Mature - Poor form T7 1 x Holm oak to remove low limbs, reduce lateral growth over lawn area by 1.5m. To open up lawn area T8 1 x Spruce to lift to 2m above ground - Lift off lawn to make maintenance easier
11 The Valley Green Welwyn Garden City AL8 7DQ
Received 11 Feb 2025
Decided - Granted6/2018/0635/HOUSE
Erection of first floor rear extension including installation of windows to existing rear and side elevations
7 Aldock Welwyn Garden City AL7 4QF
Received 6 Mar 2018
Decided - GrantedW6/2013/0690/EM
Erection of single storey side extension
108 Handside Lane, WELWYN GARDEN CITY, AL8 6SY
Received 2 Apr 2013
Decided - Granted6/2024/2269/COND
Submission of details pursuant of condition 11 (recycling) and Condition 34 (refuse) on planning permission 6/2019/3024/MAJ
29 Broadwater Road Welwyn Garden City Hertfordshire AL7 3BQ
Received 26 Nov 2024
Decided - Granted6/2019/1019/EM
Erection of a single storey side and rear extension, following demolition of existing rear conservatory and side extension
50 Church Road Welwyn Garden City AL8 6QJ
Received 23 Apr 2019
Decided - Granted6/2016/1041/EM
Installation of 2no. rear roof lights to accommodate loft conversion
42 Colgrove, Welwyn Garden City, AL8 6HU
Received 25 May 2016
Decided - Granted6/2025/2408/EM
Replacement like for like roof
18 Cole Green Lane Welwyn Garden City AL7 3PW
Received 18 Nov 2025
Decided - GrantedN6/2004/0202/FP
ERECTION OF REAR CONSERVATORY
9 Scotts View Welwyn Garden City AL8 6HF
Received 11 Feb 2004

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

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