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

36,090Searchable applications

333Recorded as pending

86%Approval rate · 30,078 approved or refused records

4,098Refused applications

25,980 approved · 4,098 refused · 1,897 withdrawn. Received dates in our records: 29 Apr 1948 to 20 Oct 2026. Most recent record check: 24 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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2025/0401/HOUSE
Erection of single storey rear and side extensions and front porch canopy, roof alterations with front and rear dormers and rear balcony following the demolition of existing conservatory and detached garage
57 Tolmers Road Cuffley Potters Bar EN6 4JG
Received 3 Mar 2025
Decided - Refused6/2021/0003/TPO
Hornbeam (T1) to be removed to ground level, T1 to be tidied up and lose of lower branches and Hornbeam (T2) requires back 2 stems to be removed
17 Turpins Ride Welwyn AL6 0QU
Received 4 Jan 2021
Decided - Refused6/2022/0382/FULL
Increase in roof height with hip to gable roof conversion to facilitate conversion of loft into habitable space and installation of additional vehicle crossover
13 Plough Hill Cuffley Potters Bar EN6 4DN
Received 7 Feb 2022
Decided - Granted6/2025/0904/HOUSE
Erection of a double storey rear extension, single storey side and rear extension, loft conversion with change in roof shape to crown roof with front and rear dormer windows
65 Brookmans Avenue Brookmans Park AL9 7QG
Received 16 May 2025
DecidedN6/2008/2285/TC
REDUCE AND THIN TREES BY 25% IN REAR GARDEN
23 Coneydale, Welwyn Garden City, AL8 7RX
Received 24 Nov 2008
Decided - GrantedS6/2009/0933/FP
AMENDMENTS TO PLANNING APPLCATION S6/2006/0841/FP (ERECTION OF DWELLINGHOUSE), INCLUDING ALTERATIONS TO FENESTRATION PROVISION OF ADDITIONAL WINDOWS TO FIRST FLOOR SIDE ELEVATIONS. REMOVAL OF MOCK TUDOR CLADDING INCREASING WIDTH OF CHIMNEY STACK AND PROVISION OF ROOF SKYLIGHT
23 HILL RISE, CUFFLEY, POTTERS BAR, HERTFORDSHIRE, EN6 4EH
Received 20 May 2009
Decided - Granted6/2016/0425/HOUSE
Conversion of garage into habitable room, incorporating new window and brick wall.
31 Beauchamps, Welwyn Garden City, AL7 1FG
Received 15 Mar 2016
Decided - Granted6/2016/1973/HOUSE
Erection of double storey rear extension following demolition of existing conservatory
49 Tolmers Road, Cuffley, Potters Bar, EN6 4JG
Received 26 Sept 2016
Decided - RefusedS6/2009/1405/FP
ERECTION OF SINGLE STOREY FRONT AND REAR EXTENSION AND TWO STOREY SIDE EXTENSION
2 De Havilland Close Hatfield AL10 0DR
Received 5 Jun 2009
Decided - Granted6/2019/1405/EIA
Request for a screening opinion for proposed residential re-development for (6/2019/0108/PN11)
29 Broadwater Road Welwyn Garden City AL7 3BQ
Received 6 Jun 2019
Decided - GrantedS6/2009/1890/MA
ERECTION OF TEACHING AND RESEARCH CENTRE COMPRISING MAIN RECEPTION AND RESEARCH LABORATORIES
HAWKSHEAD HOUSE, ROYAL VETERINARY COLLEGE, HAWKSHEAD LANE, BROOKMANS PARK, HATFIELD, HERTFORDSHIRE, AL9 7TA
Received 24 Aug 2009
Decided - Granted6/2019/1990/FULL
Erection of a new fence, a replacement fence, installation of lights and formation of hardstanding for outside seating area
The Red Lion 11 Digswell Hill Welwyn AL6 9AJ
Received 9 Aug 2019
Decided - Withdrawn6/2021/0372/VAR
Variation of condition 2 (Refuse and Recycling) and condition 3 (Bicycle shed details) on planning permission (6/2018/2124/FULL)
The Red House 54 New Road Digswell Welwyn AL6 0AH
Received 5 Feb 2021
Decided - Granted6/2024/0311/HOUSE
Erection of first floor side extension, alterations to rear fenestration, installation front boundary wall with gates, raised patio and erection of covered barbeque area
45 Pine Grove Brookmans Park Hertfordshire AL9 7BL
Received 16 Feb 2024
Decided - Refused6/2020/2846/HOUSE
Erection of single storey side/rear extension
1 Barneswood Digswell Welwyn AL6 0EU
Received 30 Oct 2020
Decided - Granted6/2016/1170/HOUSE
Erection of two storey side extension and installation of dormer window and rooflight
51 Peartree Lane, Welwyn Garden City, AL7 3UA
Received 14 Jun 2016
Decided - GrantedS6/2015/0766/TP
To crown reduce by 30% four ash trees identified as T1, T5, T6 and T7 in the tree location photographs supplied covered by TPO 468
Land rear of, 40 & 42 Georges Wood Road, Brookmans Park, Hatfield, AL9 7BT
Received 8 Apr 2015
Appeal Decided - Allowed6/2023/1212/HOUSE
Installation of solar panels to roof
6 Little Youngs Welwyn Garden City AL8 6SL
Received 7 Jun 2023
Decided - GrantedS6/2013/1738/S73A
Variation of condition 2 (approved plans) of planning permission S6/2013/0396/FP (single storey studio in rear garden)
6 Georges Wood Road, Brookmans Park, Hatfield, AL9 7BZ
Received 7 Aug 2013
Decided - Withdrawn6/2022/1688/FULL
Erection of a two storey side and part two storey rear extension including demolition of existing detached garage.
10 Thrush Avenue Hatfield AL10 8QU
Received 18 Jul 2022
Decided - Granted6/2018/1386/LAWP
Certificate of lawfulness for the erection of a single storey side and rear extension and ramped access to the front and rear
5 Boltons Cottages Swanley Bar Lane Little Heath Potters Bar EN6 1NS
Received 23 May 2018
Decided - Granted6/2017/0704/COND
Submission of details pursuant to condition 7 (replacement tree details) on estate management consent 6/2016/1523/EM, dated 30/01/2017.
11 Valley Road Welwyn Garden City AL8 7DG
Received 4 Apr 2017
Decided - Granted6/2019/2193/HOUSE
Erection of single storey side extension and installation of a balcony
90 Harmer Green Lane Digswell Welwyn AL6 0EP
Received 4 Sept 2019
Decided - Granted6/2022/1981/EMT
1 x Variegated maple to prune out reversion growth, reduce remaining by 1.5m height and width. 1 x Deodar cedar to reduce by 2.5m in height and 1.2m in width. 1 x Weeping willow to reduce by 1.5m height and 2m width
13 The Old Drive, Welwyn Garden City, AL8 6TB
Received 25 Aug 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.
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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