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

283Recorded as pending

86%Approval rate · 33,821 approved or refused records

4,819Refused applications

29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - RefusedW6/2004/1006/EM
ERECTION OF TWO STOREY SIDE AND SINGLE STOREY REAR EXTENSION.
131 Hollybush Lane, Welwyn Garden City, AL7 4JS
Received 2 Jul 2004
Decided - Granted6/2016/0639/HOUSE
Installation of dormer windows to front and rear elevations including alterations to front and rear elevations
6 Sharmans Close Digswell Welwyn AL6 0AR
Received 7 Apr 2016
Decided6/2024/0913/TC
Removal of 1 x Pear tree to ground level as in poor condition and starting to fail Reduction of 1 x Apple tree by approximately 1.2m in height and width to retain tree as has large cavaities
19 Barleycroft Road Welwyn Garden City AL8 6JX
Received 16 May 2024
Decided - Granted6/2015/2328/HOUSE
Erection of single storey and two storey rear extension, roof lights and alterations
9 Roe Green Lane, Hatfield, AL10 0SH
Received 17 Nov 2015
Decided - Granted6/2019/0970/HOUSE
Erection of a single storey rear extension
40 Howlands Welwyn Garden City AL7 4RE
Received 18 Apr 2019
DecidedN6/2008/2163/TC
REMOVAL OF SYCAMORES, REMOVAL OF HORSE CHESTNUT AND WORKS TO LIME TREES
COMMON LAND, AYOT ST LAWRENCE CONSERVATION AREA, AYOT ST LAWRENCE, WELWYN, HERTFORDSHIRE
Received 14 Nov 2008
Decided6/2024/0127/TC
1 x Hornbeam to remove 2 x limbs overhanging property to the rear. To shorten 2 pendulous branches by 1.5m overhanging to the rear
7 Coneydale Welwyn Garden City AL8 7RX
Received 22 Jan 2024
Appeal Decided - DismissedS6/2006/0404/FP
SINGLE STOREY SIDE AND REAR EXTENSION, ROOF ENLARGEMENT AND LOFT CONVERSION INCORPORATING REAR DORMER WINDOW, FRONT, SIDE AND REAR ROOFLIGHTS
1 Theobalds Close Cuffley Potters Bar EN6 4HH
Received 30 Mar 2006
Decided - Granted6/2022/1431/HOUSE
Erection of single storey rear extension following removal of adjoined store, removal of kitchen window and opening up, associated works and remedial works and reintroduction of first floor window
12 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE
Received 21 Jun 2022
Decided - Granted6/2017/0548/FULL
Change of use of from ground floor (A2) professional services / first floor flat (C3) to form a single residential 3-bedroom dwelling (C3) including internal and external alterations.
9-11 Church Street Welwyn AL6 9LN
Received 20 Mar 2017
Decided - Granted6/2024/0740/EM
Installation of an air source heat pump
9 The Quadrangle Welwyn Garden City AL8 6SG
Received 22 Apr 2024
Decided - GrantedS6/2014/1981/FP
Erection of two storey front and rear extensions with increased ridge height and insertion of two rear dormers and front and side rooflights
46 Hill Rise, Cuffley, Potters Bar, EN6 4EJ
Received 8 Sept 2014
Decided - Granted6/2020/0365/FULL
Change of use from existing 4-bed small HMO (C4) and self-contained unit to a small 5-bed HMO (C4) and retention of single storey rear extension
28 Roe Green Lane Hatfield AL10 0RZ
Received 10 Feb 2020
Decided - Granted6/2017/0027/PN8
Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 2.88m to the eaves
14 Magpie Walk Hatfield AL10 8RF
Received 6 Jan 2017
Decided - Granted6/2024/2275/COND
Submission of details pursuant of conditions 8 & 31 (external materials) on planning permission 6/2019/3024/MAJ
29 Broadwater Road Welwyn Garden City AL7 3BQ
Received 26 Nov 2024
Decided6/2022/1522/TC
T2 Apple - Fell to ground level
2 Lytton Gardens Welwyn Garden City AL8 6EG
Received 29 Jun 2022
Under Consultation6/2026/1881/EM
Erection of workshop/shed in back garden - dimensions 6m x 3m with a height of 2.5m to replace existing shed
159 Parkway Welwyn Garden City AL8 6JA
Received 16 Oct 2026
Decided - GrantedS6/2008/0163/FP
ERECTION OF ONE & HALF STOREY REAR EXTENSION INCLUDING ALTERATIONS FROM HIP TO GABLE AT FRONT & REAR, A JULIET BALCONY AND SIDE ROOF EXTENSIONS
20 KINGSWELL RIDE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4LH
Received 28 Jan 2008
Decided - Granted6/2016/1478/MAJ
Erection of stable block
7 Danesbury Lane Welwyn AL6 9SG
Received 21 Jul 2016
Decided - Withdrawn6/2019/1127/TPO
Reduce 2 x Beech tree by 2M , TPO 599 (2016)
10 Mardley Dell Welwyn AL6 0UR
Received 9 May 2019
Decided - GrantedN6/2007/0817/FP
ERECTION OF NEW DETACHED DOUBLE GARAGE AND ALTERATIONS TO THE ROOF OF EXISTING DWELLING
1 Oldwood Welwyn AL6 0QR
Received 30 May 2007
Decided - RefusedW6/2006/0660/EM
PROPOSED LOFT CONVERSION INCORPORATING 8 ROOF LIGHTS AND WINDOW TO REAR GABLE END.
16 Scholars Mews, Welwyn Garden City, AL8 7JQ
Received 23 May 2006
Decided - GrantedW6/2004/0546/EM
ERECTION OF REAR CONSERVATORY
205 Thistle Grove, Welwyn Garden City, AL7 4AH
Received 13 Apr 2004
Decided - Refused6/2021/1394/EMT
Removal of two oaks
1 Reddings Welwyn Garden City AL8 7LA
Received 30 Apr 2021

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.
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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