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

34,738Searchable applications

313Recorded as pending

87%Approval rate · 28,943 approved or refused records

3,852Refused applications

25,091 approved · 3,852 refused · 1,808 withdrawn. Received dates in our records: 29 Apr 1948 to 14 Oct 2026. Most recent record check: 22 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 Counts reflect the last collected status; some records may be out of date.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 - Refused6/2020/0858/PN8
Prior approval for the erection of a single storey rear extension measuring 6.00m in depth, 3.00m in height and 3.00m to the eaves following demolition of the existing rear and side extension
63 Holloways Lane Welham Green Hatfield AL9 7NU
Received 8 Apr 2020
Decided - GrantedS6/2008/2423/DS
DISCHARGE OF CONDITION 4 (LIGHTING) OF PLANNING PERMISSION S6/2008/1127/MA
UNIVERSITY OF HERTFORDSHIRE, COLLEGE LANE, HATFIELD, HERTFORDSHIRE, AL10 9PN
Received 12 Dec 2008
Decided - Granted6/2022/1394/HOUSE
Proposed garage conversion, rear/side infill, raising ridge of garage with, loft conversion, conversion of main house roof into habitable with roof lights to front and rear slopes
2 Wyton Welwyn Garden City Hertfordshire AL7 2PF
Received 16 Jun 2022
Decided - Granted6/2020/0319/EM
Fell 1x Pine tree
91 Daniells Welwyn Garden City AL7 1QT
Received 5 Feb 2020
Decided - GrantedW6/2009/2073/EM
REPLACEMENT FRONT DOOR
485 HOWLANDS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4HP
Received 23 Sept 2009
Decided - Granted6/2026/0839/EM
Rear garden landscaping comprising the installation of two louvered aluminium pergolas, a multi-level porcelain terrace, and integrated soft landscaping.
133 Sweet Briar Welwyn Garden City AL7 3EB
Received 12 May 2026
Decided - Granted6/2020/1457/EM
Erection of timber shed in rear garden
2 Parkway Close Welwyn Garden City AL8 6HJ
Received 22 Jun 2020
Decided - GrantedN6/2009/2407/TP
REMOVAL OF DEAD TREE, DEAD WOOD AND TRIMMING CONIFERS (DDD)
51 New Road Digswell Welwyn AL6 0AQ
Received 2 Nov 2009
Decided - GrantedW6/2013/1126/EM
Replace the existing side and rear windows with new UPVC double glazed windows, works to include replacement front door, patio doors, and back door
12 Elm Gardens, WELWYN GARDEN CITY, AL8 6RY
Received 28 May 2013
Decided - Granted6/2016/2021/HOUSE
Erection of ground floor rear extension following demolition of existing extension
27 Gould Close Welham Green Hatfield AL9 7EB
Received 27 Sept 2016
Decided - GrantedN6/2013/0483/TC
Reduce Eucalyptus tree by upto 30%
84 Handside Lane, WELWYN GARDEN CITY, AL8 6SJ
Received 13 Mar 2013
Decided - Granted6/2016/1384/TPO
T1 Betula pendula - Crown thin by 20% plus T2 Prunus cerasifera - Crown reduce by 2m to reduce loading on weak branch unions and reduce risk of failure - Conservation Area
122 Sweet Briar, Welwyn Garden City, AL7 3EA
Received 7 Jul 2016
Decided - Split6/2017/1323/COND
Submission of details pursuant to condition 2 (materials samples - brickwork) and condition 3 (drawings of roof eaves and verges, windows and doors and front porch) on planning permission 6/2015/1987/FULL, dated 07/01/2016
24 Mill Lane Welwyn AL6 9ET
Received 20 Jun 2017
Decided - GrantedS6/2009/2323/LU
CERTIFICATE OF LAWFULNESS FOR A PROPOSED HIP-TO-GABLE ROOF EXTENSION WITH REAR DORMER, INSERTION OF ROOF LIGHTS TO FRONT ROOF SLOPE
15 OAKLANDS AVENUE, BROOKMANS PARK, HATFIELD, HERTS, AL9 7UH
Received 20 Oct 2009
Decided - Granted6/2023/2492/EM
Upgrading insulation and replacement of cladding and roofs, change of glass pitched roof of existing conservatory to flat roof, partial garage conversion and changes to fenestration with anthracite Aluminium windows and doors
2 Fern Grove Welwyn Garden City AL8 7ND
Received 13 Dec 2023
Decided - Granted6/2020/1116/HOUSE
Garage Conversion with window to front elevation
8 Wyton Welwyn Garden City AL7 2PF
Received 18 May 2020
Decided - GrantedS6/2014/0402/NM
Non material amendment following approval of planning permission S6/2012/2606/FP - Single front entrance door, internal layout amendments: revised kitchen, bathroom and dining room locations. Revised en-suite bathroom location and gallery profile plus omit window and relocate doorway to existing rear extension.
The Old Reading Room 32 High Road Essendon Hatfield AL9 6HW
Received 4 Mar 2014
Decided - GrantedN6/2014/0695/AD
Retention of illumninated signage in relation to Automated Teller Machine
Stadium Service Station Stanborough Road Welwyn Garden City AL8 6XA
Received 1 Apr 2014
Decided - Granted6/2026/0733/FULL
Erection of two dwellings together with car parking and landscaping following the demolition of existing bungalow
Tylersley Farm Tylers Causeway Newgate Street Hertford SG13 8QN
Received 27 Apr 2026
Decided - Granted6/2022/1705/HOUSE
Erection of single storey rear extension and garage
The Old Vicarage Vineyards Road Northaw Potters Bar EN6 4NZ
Received 19 Jul 2022
Decided - Granted6/2023/2029/FULL
Installation of 81 replacement windows to rear of Charter House
Charter House NHS England Parkway Welwyn Garden City AL8 6JL
Received 2 Oct 2023
Decided - Granted6/2019/0318/LAWP
Certificate of lawfulness for the erection of single storey side, two storey rear extension with pitched roof
Heathfield 1 Pottersheath Road Welwyn AL6 9TA
Received 12 Feb 2019
Decided - GrantedW6/2013/0887/EM
Installation of velux kerbed window to rear roof
Wahroonga, 30 Youngs Rise, WELWYN GARDEN CITY, AL8 6RU
Received 29 Apr 2013
Decided - GrantedS6/2013/1852/DS
Discharge of condition 8 of planning permission S6/2012/1181/MA - Alterations comprising refurbishment and extension to Prince Edward Hall to provide a new reception area and student/visitor cafe, refurbish and extension to the Hutton Building and Hutton Hall to accommodate the consolidation and co-location of staff and student facilities, including a new extension within the existing quadrant. Alterations to pedestrian routes and the landscaped setting of the buildings, including an improved heritage walkway linking these two focuses of activity (Comprising Phase 1 of the development identified in the University of Hertfordshire 2020 Estate Vision)
University of Hertfordshire, College Lane, Hatfield, AL10 9AB
Received 27 Aug 2013

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

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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