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

40,115Searchable applications

300Recorded as pending

86%Approval rate · 33,648 approved or refused records

4,801Refused applications

28,847 approved · 4,801 refused · 2,205 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 30 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2017/0121/PN8
Prior approval for the erection of a single storey rear extension measuring 3.5m. in depth, 2.945m. in height and 2.945m. to the eaves
65 Westland Drive Brookmans Park Hatfield AL9 7UG
Received 23 Jan 2017
Decided - RefusedN6/2009/1174/LU
CERTIFICATE OF LAWFULNESS FOR ERECTION OF A SINGLE STOREY REAR EXTENSION
122 HALDENS, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 1DG
Received 5 Jun 2009
Decided - Granted6/2017/0856/FULL
Change of use of the land into a car hire centre with the hours of operation: Monday-Sunday 07:00-19:00 with works to include the installation of a modular office building, the creation of a car wash area with canopy over, and the laying out of 20 parking spaces as well as the replacement of front boundary fencing with hopped railings.
Murphy Compound Ridgeway Welwyn Garden City AL7 2AD
Received 25 Apr 2017
Decided - GrantedW6/2007/1388/EM
BLOCK PAVING TO FRONT GARDEN FOLLOWING REMOVAL OF EXISTING HARDSTANDING
97 Howlands, Welwyn Garden City, AL7 4RA
Received 18 Sept 2007
Decided - Refused6/2020/1394/LAWP
Certificate of lawfulness for erection of front extension
85 Chelwood Avenue Hatfield AL10 0RF
Received 17 Jun 2020
Decided - Granted6/2017/1182/EM
Installation of 2 rooflights to rear elevation to facilitate conversion of loft to habitable space
154 Parkway Welwyn Garden City AL8 6HZ
Received 30 May 2017
Decided - GrantedS6/2004/0268/FP
ERECTION OF TWO STOREY SIDE AND PART TWO STOREY PART SINGLE STOREY REAR EXTENSIONS, AND FRONT PORCH
19 Bluebridge Avenue Brookmans Park Hatfield AL9 7RY
Received 19 Feb 2004
Decided - GrantedW6/2009/0057/EM
ERECTION OF REAR CONSERVATORY
76 HOWICKS GREEN, WELWYN GARDEN CITY, HERTFORDSHIRE, AL7 4RH
Received 9 Jan 2009
Decided - Granted6/2016/0738/HOUSE
Erection of single storey front extension, two storey side extension, single and two storey rear extensions with internal alterations
22 Elmoor Avenue Welwyn AL6 9PD
Received 20 Apr 2016
Decided - Granted6/2021/2410/EMT
Reduce 1 x Hornbeam tree by 30% and thin 1 x Oak tree by 30%
21 Coneydale Welwyn Garden City AL8 7RX
Received 16 Aug 2021
DecidedN6/2014/1837/TC
Reduce and lift crown of Cedar tree by 25% and removal of dead branches
129 Handside Lane, Welwyn Garden City, AL8 6TA
Received 15 Aug 2014
Decided - GrantedN6/2006/0610/FP
ERECTION OF SINGLE STOREY EXTENSION
16 Danesbury Park North Ride Welwyn AL6 9SA
Received 11 May 2006
Decided - Granted6/2021/1069/COND
Submission of details pursuant to conditions 1 (conservatory materials) and 2 (external materials) on planning permission 6/2020/3264/HOUSE.
Hyde Cottage 16-18 Cromer Hyde Lane Lemsford Welwyn Garden City AL8 7XE
Received 31 Mar 2021
Decided - Granted6/2024/2415/COND
Submission of details pursuant to Condition 1 (External Materials) and Condition 2 (Landscaping) on planning permission 6/2024/1282/FULL
10 Sunnyfield Hatfield AL9 5DX
Received 20 Dec 2024
Decided - WithdrawnS6/2013/1341/FP
Retention of gates, pillars and walls to front boundary
Northfield, Woodfield Lane, Brookmans Park, Hatfield, AL9 6JJ
Received 21 Jun 2013
DecidedN6/2014/2321/NM
Non material amendment following approval of planning permission N6/2013/2377/MA - Substitution of Copper cladding for an alternative material and omission of louvres
Welwyn Garden City Campus Oaklands College The Campus Welwyn Garden City AL8 6AH
Received 21 Oct 2014
Decided - GrantedW6/2014/0241/EM
Erection of timber pergola to existing house and garden room to garage
85 Pentley Park, Welwyn Garden City, AL8 7SL
Received 30 Jan 2014
Decided - GrantedN6/2013/1134/DS
Discharge of conditions 3 (Obscure Glass) of planning permission N6/2011/0235/FP - Erection of single storey side and rear extension, alterations to roof to include six dormer windows
22 Chestnut Walk Welwyn AL6 0SB
Received 28 May 2013
Decided - WithdrawnS6/2008/1683/FP
ERECTION OF SINGLE STOREY SIDE EXTENSION AND TWO STOREY REAR EXTENSION, FOLLOWING DEMOLITION OF EXISTING DETACHED GARAGE AND REAR CONSERVATORY
33 BROOKSIDE CRESCENT, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4QW
Received 28 Aug 2008
Decided - Granted6/2017/1230/HOUSE
Erection of single storey rear extension, installation of door to facilitate part conversion of existing front garage installation of rear raised patio and ramp and a side facing rooflight
24 Glebe Road Welwyn AL6 9PB
Received 6 Jun 2017
Appeal Decided - Dismissed6/2021/0847/HOUSE
Erection of a two storey front infill extension
16 Waterbeach Welwyn Garden City AL7 2PT
Received 16 Mar 2021
Decided - Granted6/2018/1113/LAWP
Certificate of lawfulness for the installation of radar and ancillary equipment to roof of the main building
College Lane Campus University of Hertfordshire Hatfield AL10 9AB
Received 30 Apr 2018
Appeal Decided - WithdrawnS6/2014/0661/FP
Erection of a detached garage
145 Tolmers Road, Cuffley, Potters Bar, EN6 4JW
Received 21 Mar 2014
Decided - Granted6/2025/0083/EMT
Trim 1 Lime back to previous cuts Grind stump of one fallen Lime Reduce Beech tree by 30% for scheduled triennial management This is a resubmission of 6/2024/1514/EMT
Wahroonga 30 Youngs Rise Welwyn Garden City AL8 6RU
Received 20 Jan 2025

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

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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.

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