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29,002 approved · 4,819 refused · 2,219 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 - Granted6/2016/1825/EM
Reduce 2 Robinia trees on the side of the rear garden by 30% and removal of lower level branches
20 Walden Road, Welwyn Garden City, AL8 7PF
Received 5 Sept 2016
Decided - Granted6/2021/1716/EM
Single storey rear extension, front porch extension, internal alterations to create open plan living space and new windows added throughout the property
70 Broadwater Crescent Welwyn Garden City AL7 3TU
Received 28 May 2021
Decided - Granted6/2026/1001/EMT
Leyland cypress hedge to reduce by approximately 3m in height.
6 Meadow Green, Welwyn Garden City, AL8 6SS
Received 8 Jun 2026
Decided - GrantedN6/2009/1710/FP
ERECTION OF SINGLE STOREY REAR EXTENSION
12 THE ORCHARD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7PL
Received 6 Aug 2009
Decided - Granted6/2019/0786/COND
Submission of details pursuant to condition 5 (Landscaping and Mitigation), 6 (Layout) for on planning permission 6/2018/1519/MAJ
Land north of Chequersfield Welwyn Garden City AL7 4SX
Received 2 Apr 2019
Decided - RefusedS6/2006/0528/FP
SINGLE STOREY REAR EXTENSION
14 Elm Drive Hatfield AL10 8NU
Received 25 Apr 2006
Decided - Granted6/2024/0203/FULL
Erection of single storey extensions to clubhouse
Brookmans Park Golf Club Golf Club Road Brookmans Park Hertfordshire AL9 7AT
Received 1 Feb 2024
Decided - Granted6/2024/0641/HOUSE
Erection of single and double storey extensions to the sides and rear with fenestration and patio alterations
28 Ravenfield Road Welwyn Garden City AL7 3UE
Received 4 Apr 2024
Decided - Granted6/2023/2039/ADV
Installation of 6 externally illuminated fascia signs (retrospective)
26 Stonehills Welwyn Garden City AL8 6NA
Received 4 Oct 2023
Decided - GrantedW6/2009/1904/EM
ERECTION OF FIRST FLOOR REAR EXTENSION AND PART GARAGE CONVERSION
6 VALLEY ROAD, WELWYN GARDEN CITY, HERTFORDSHIRE, AL8 7DF
Received 4 Sept 2009
Decided - Granted6/2023/0948/EMT
Reduce mature Ash tree by 30% (2m) and cut back Ivy branches due to excessive shading.
129 Howlands Welwyn Garden City AL7 4RL
Received 4 May 2023
Decided - Granted6/2018/1698/COND
Submission of details pursuant to condition 8 (Trees, Shrubs & TPO No. 165) on planning permission 6/2018/0285/MAJ
Unit 3C Bridgefields Welwyn Garden City AL7 1RX
Received 25 Jun 2018
Decided - Refused6/2017/2564/HOUSE
Erection of single storey rear extension, two storey front and rear extension, loft conversion to include two rear dormers and alterations to existing openings
7 Strawmead Hatfield AL10 0JG
Received 7 Nov 2017
Decided - GrantedW6/2007/1426/EM
PROPOSED CONVERSION OF GARAGE INTO HABITABLE ROOM
51 Cypress Avenue, Welwyn Garden City, AL7 1HN
Received 25 Sept 2007
Decided - Granted6/2020/2336/EM
Raising of existing garage's roof to facilitate the erection of single storey front extension.
52 Rosedale Welwyn Garden City AL7 1DR
Received 11 Sept 2020
Decided - Refused6/2018/2998/FULL
Change of use from class C3 (dwelling house) to class C4 (HMO) providing 6 bedrooms
8 Lark Rise Hatfield AL10 8RA
Received 22 Nov 2018
Decided - GrantedS6/2009/0218/FP
ERECTION OF REPLACEMENT TWO BEDROOM DWELLING INCORPORATING THE INSTALLATION OF FOUR SEMI-DORMER WINDOWS TO FRONT AND REAR ELEVATION, MINOR VARIATION TO PLANNING APPROVAL S6/2006/1596/FP, INCLUDING SIDE EASTERN EXTENSION, REVISED FENESTRATION, ALTERATIONS TO THE FRONT PORTICO AND OMISSION OF THE GARAGE BLOCK
WEST LODGE, COOPERS LANE, NORTHAW, HERTFORDSHIRE, EN6 4NF
Received 30 Jan 2009
Decided - Granted6/2017/0017/HOUSE
Installation of rear roof light.
17 Elmwood Welwyn Garden City AL8 6LD
Received 5 Jan 2017
Decided - RefusedS6/2004/1192/FP
PART CHANGE OF USE TO CAR WASH (RETROSPECTIVE APPLICATION)
The Rookery Cafe Great North Road Welham Green Hatfield AL9 5SF
Received 4 Aug 2004
Decided - RefusedN6/2005/1567/FP
ERECTION OF SINGLE STOREY REAR AND SIDE EXTENSIONS
7 The Green Welwyn AL6 9EA
Received 20 Dec 2005
Decided - Granted6/2022/2345/TPO
Periodic reduction to the crowns of Oaks T2, T3 and T4 by 30% to prior pruning points. Such action will preserve health, shape and size of trees, as well as to minimise localised seasonal shrink/swell within the zone of influence of the roots of these trees. TPO 495 (2015)
27 Shrublands Brookmans Park AL9 7AL
Received 7 Oct 2022
Decided - Granted6/2017/0864/HOUSE
Erection of front porch
1 Cedar Walk Welwyn Garden City AL7 1HQ
Received 26 Apr 2017
Decided - GrantedN6/2014/0078/DS
Discharge of condition 7 (site levels) of planning permission N6/2013/0491/MA
former Hyde Club, Hollybush Lane, Welwyn Garden City, AL7 4JS
Received 13 Jan 2014
Decided - Refused6/2018/2709/COND
Submission of details pursuant to condition 3 (cycle parking) on planning permission 6/2016/1882/FULL
Former Roche Products Site 40 Broadwater Road AL7 3AY
Received 23 Oct 2018

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
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.
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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