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

40,295Searchable applications

322Recorded as pending

86%Approval rate · 33,786 approved or refused records

4,816Refused applications

28,970 approved · 4,816 refused · 2,217 withdrawn. Received dates in our records: 29 Apr 1948 to 29 Oct 2026. Most recent record check: 7 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 Counts reflect the last collected status; some records may be out of date.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

Decided6/2021/1631/TC
Lawson Cypress - fell
18 Rooks Hill Welwyn Garden City AL8 6ET
Received 21 May 2021
Decided - Granted6/2025/0469/EM
Converting front garden into driveway
68A Springfields Welwyn Garden City AL8 6XN
Received 13 Mar 2025
Decided - GrantedN6/2015/0492/FP
Erection of single storey side extension
7 Dayemead, Welwyn Garden City, AL7 4RX
Received 6 Mar 2015
Decided - RefusedW6/2007/0553/EM
FORMATION OF VEHICLE HARDSTANDING
9 Picketts, Welwyn Garden City, AL8 7HJ
Received 3 Apr 2007
Decided - Refused6/2025/0278/LAWP
Certificate of lawfulness for the part conversion of garage to habitable space with insertion of a door and window
13 Flamingo Close Hatfield AL10 9LU
Received 17 Feb 2025
Decided - Granted6/2017/0537/EM
Erection of a single storey rear extension with rear garden glazing (french sliding/folding doors) flat roof and installation of 3 rooflights.
33 Springfields Welwyn Garden City AL8 6XT
Received 15 Mar 2017
Decided - GrantedC6/1988/7026/AD
Illuminated signs.
Attimore Barn Ridgeway Welwyn Garden City AL7 2AD
Received 1 Jan 1988
Decided - Granted6/2021/3417/VAR
Variation of condition 2 (replace approved drawings) on planning permission 6/2020/1620/HOUSE
5 Ryelands Welwyn Garden City AL7 4LH
Received 7 Dec 2021
Decided - Refused6/2026/0752/VAR
Variation of condition 3 (levels), 6 (hard and soft landscaping), 7 (materials), 9 (energy statement) and 16 (approved plans) on planning permission 6/2024/1554/FULL
Land adjacent to Woodvale 1 Carbone Hill Northaw Potters Bar EN6 4PJ
Received 28 Apr 2026
Decided - Refused6/2020/1716/EMT
Removal of oak tree
19 Scholars Mews Welwyn Garden City AL8 7JQ
Received 14 Jul 2020
Decided - Granted6/2023/0082/LAWP
Certificate of Lawful Development for a proposed loft conversion with alterations to the roof including a rear dormer, front rooflights and formation of hipped to gable roof and new porch
79 Holloways Lane Welham Green Hatfield AL9 7NU
Received 12 Jan 2023
Decided - RefusedN6/2014/0657/FP
Installation of timber gates with supporting timber posts and retention of dwarf garden walls
Paynes Farm New Road Woolmer Green Knebworth SG3 6LE
Received 11 Feb 2014
Decided - Granted6/2018/0494/FULL
Erection of 7 x 4-bedroom dwellings with associated parking, bin/cycle storage and landscaping and retention of the existing vehicular access, following demolition of existing public house
The East Great North Road Welwyn Garden City AL8 7TB
Received 20 Feb 2018
Decided - GrantedS6/2014/1084/FP
Erection of two storey detached 4 bedroom dwellinghouse
2 Farm Close, Cuffley, Potters Bar, EN6 4RQ
Received 12 May 2014
Decided - Granted6/2023/0330/TPO
T9-T10 Willow x 2. Re pollard back to historic points. Trees covered by TPO 701 (2017)
Hertfordshire Constabulary Central Area Headquarters And Hatfield Police Station Comet Way Hatfield AL10 9SJ
Received 10 Feb 2023
Decided - GrantedN6/2008/0814/FP
ERECTION OF SINGLE STOREY SIDE EXTENSION
35 Mardley Avenue Welwyn AL6 0TU
Received 23 May 2008
Decided6/2022/0337/TC
T1 -1 x 20 ft conifer, fell to ground level 1 x grind conifer stump
40 The Vineyard Welwyn Garden City AL8 7PU
Received 14 Feb 2022
Decided - GrantedS6/2009/1470/FP
AMENDMENT TO PLANNING PERMISSION S6/2007/0273/MA COMPRISING REFURBISHMENT OF ELE HOUSE INVOLVING ALTERATIONS TO THE ELEVATIONS AND THE ADDITION OF PLANT TO THE ROOF
Ele House University Of Hertfordshire College Lane Hatfield AL10 9AB
Received 14 Jul 2009
Decided - Withdrawn6/2023/0269/HOUSE
Retention and remodelation of the as-built single storey side extension, alterations to main dwelling with an attached front garage and link extension. Erection of outbuilding (Part retrospective)
95 Robbery Bottom Lane Welwyn AL6 0UL
Received 3 Feb 2023
Decided - GrantedN6/2004/1000/FP
ERECTION OF SINGLE STOREY REAR EXTENSION TO PROVIDE FACILITIES FOR A DISABLED PERSON.
7 Bushey Ley Welwyn Garden City AL7 3EY
Received 1 Jul 2004
Appeal Decided - Dismissed6/2020/1546/HOUSE
Erection of two storey side extension following demolition of existing garage
Little House, West End Lane, Essendon, Hatfield, AL9 6AU
Received 29 Jun 2020
Decided - GrantedW6/2014/0786/EM
Erection of a single storey side and rear extension and insertion of 3no. Rooflights
131 Oakdale, Welwyn Garden City, AL8 7QS
Received 25 Feb 2014
Decided - Granted6/2019/1972/FULL
Retention of a driveway
Woodland North West of The Ridgeway, Cuffley
Received 8 Aug 2019
Decided - Granted6/2022/2918/HOUSE
Erection of part single storey, part two storey rear extensions, following demolition of a conservatory and alteration to fenestration.
1 Deerswood Avenue Hatfield AL10 8RX
Received 29 Dec 2022

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