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A blueprint for cities, investors, developers and communities Acknowledgements C40 Cities, Arup, Urban Partners C40 is a network of nearly 100 mayors of the world’s leading cities working to deliver the urgent action needed right now toconfront the climate crisis and create a future where everyone, everywhere, can thrive. Mayors of C40 cities are committed Arup is the creative force at the heart of many of the world’s most prominent projects in the built environment and acrossindustry. Working in more than 140 countries, the firm’s designers, engineers, architects, planners, consultants and technical Arup has worked with C40 since 2009 to develop strategic analysis and research that is central to progressing ourunderstanding of how cities contribute to climate change mitigation and adaptation. The partnership supports a strong Urban Partners is a leading European urban investment manager, owner and operator with a 20-year track record ofdelivering strong, risk-adjusted returns through market cycles. Urban Partners develops, actively manages and financeshigh-quality assets in prime locations across Northern Europe. Founded as Nrep in 2005, Urban Partners has more than €23 This blueprint was co-created and co-delivered by the C40 Cities and Arup partnership, and Urban Partners Reviewers Contributors Authors Cassie Sutherland, C40Andrea Fernandez, C40Ismat Fathi, C40Josu Mozos, C40 Alice Charles, ArupAnna Alletto, Arup Hélène Chartier, C40 CitiesMichael O’Neill, C40 CitiesLéan Doody, Arup Thure Krarup, Urban PartnersAnders Beg Sørensen, Urban Partners Contents 03A call to actionP.69 01Urbanregeneration Foreword حKarin Wanngård,Mayor of Stockholm Stockholm's strength lies in its abilityto grow sustainably. As one of Europe'sfastest-growing capitals, we see ourincreasing population not just as achallenge, but also an opportunity tobuild a more equitable and resilient green infrastructure, and will play acentral role in furthering Stockholm’sambitious goal to be fossil-fuel free by2040. By involving residents in everystep, we are also ensuring that this new The lessons we've learned in Stockholmare valuable, but we also know thattackling the challenges of urbanisationrequires shared knowledge. This report The Stockholm Royal Seaportrepresents one of the latest chaptersin this story. As one of the largestdevelopment projects in Northern Jerome Frost,CEO, Arup حMark Watts,Executive Director, C40 Cities A global focus on material reuse andresource efficiency, coupled with fiscalcontraction and changing lifestyle European cities are grappling with asustained housing crisis. While the causesare complex, 70%of European mayors warehouses, and gasyards into a mixed-use community with ample greenspace,centred on two schools and a university.To-date, 1,700 homes have been built, ofwhich almost 40% are affordable. Thenew Clichy-Batignolles neighbourhoodin Paris, also built over a former rail The exciting truth is that by scalingbrownfield urban regeneration, manyof our cities’ converging challenges –lack of affordable housing, lack of greenspaces, the need to unlock private rank insufficient supply as a key driverof unaffordability.1It's clear that buildingmore homes needs to be part of thesolution - however it’s critical that weget it right. The old model of sprawling Done well, these types of regenerationprojects often seem obvious, almostinevitable to the public. They can alsotrigger wider community and investor Cities urgently need to embrace thisidea. With a stronger, more actionabledefinition of brownfield urbanregeneration, towns and cities will bebetter able to meet the needs of their This report, developed with Arupand Urban Partners, shares bestpractices with the aim of acceleratingthe delivery of these types ofambitious projects in cities acrossEurope. Informed by inspiringcase studies and expert insights, itoffers recommendations across allstages of a project - from visioning The vast areas of brownfield land andempty office space in Europe’s citiesrepresent a significant opportunity.Unlocking these sites —old industrialareas, rail yards, and commercial But as this report makes clear, schemesof this kind aren't inevitable. They areplanned. And they represent one of themost effective ways to ensure our townsand cities remain vibrant, sustainable, For Arup, this is an exciting agendabecause it encourages us to be bolder,more creative and thoughtful about theway we approach urban development. Itcalls on built environment practitioners,planners, funders, and city leaders to beambitious in our regeneration efforts. Successful places combine intention andhappenstance, big plans and gradualevolution. The very human story of townsand cities often results in significantareas of brownfield land, underused and Cities across Europe are realisingthe potential of these sites todeliver ambitious, thriving, greenneighbourhoods that benefit bothexisting and new residents. For UNLOCKING SUST