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Willem Janssen | Colliers | London - West End

Willem Janssen

Director National Offices

National Offices

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Professional Summary

Willem has nearly 30 years experience in the property industry, with particular expertise in office agency, desgin and development.

Willem re-joined Colliers as Lead Director in the South East Offices team in Feb 2022, having spent the previous two years working client side for a private family business in charge of a half million sq ft office portfolio across the South East, and prior to that spent nearly 12 years at Colliers as a Director in the Central London Offices team.



MA Property Valuation and Law - City University 1999

My Team

Featured Research

26 Jan 2023

South East Offices Snapshot Q4 2022

South East offices experienced an improvement in Q4 2022, with occupational demand and investment volumes improving quarter-on-quarter.
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20 Oct 2022

South East Offices Snapshot | Q3 2022

Wimbledon, Windsor, Oxford, Brighton and Richmond have all seen 4%+ uplift in prime rents during 2022 to date.
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27 Jul 2022

South East Offices Snapshot Q2 2022

Take-up in Q2 improved from Q1 with a 21% rise.
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Featured News

18 Jan 2023

The race to snap up rare BREEAM Excellent Woking office building begins.

Colliers has been instructed to let McLaren Group’s 66,500 sq ft town centre satellite office in Woking.
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19 Dec 2022

ESG regulations help to fuel the flight to quality office space

Derisking capital for safer sustainable options.
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