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Single-family houses in Vancouver that were built prior to 1940 are a cache of wood from British Columbia (BC) old-growth forests. The purpose of this paper is to discuss the environmental and heritage values of maintaining this finite resource, assess the current policy and regulatory efforts of the City of Vancouver to save this resource and recommend further opportunities to improve and expedite these efforts.

Using the City of Vancouver as a case study, this paper identifies effective policy practices to encourage and facilitate salvaging and reusing old wood resources. Additionally, the paper discusses the key challenges and risks that need to be addressed for these policy approaches to succeed.

Pre-1940 houses constitute about 40 percent of single-family houses that have been demolished in Vancouver in the past few years. The City of Vancouver enacted the Green Demolition Bylaw in 2014 requiring a minimum of 75 percent diversion of demolition waste. However, wood from these houses has been mainly chipped and recycled as biomass fuel or landscape mulch rather than reused. The result shows that regulatory enforcement along with support for infrastructure development may be crucial to protect the remainder of this valuable heritage resource.

This paper considers the environmental and heritage values of wood elements used in old houses and recommends further policy and regulatory interventions to maximize wood salvaging and reuse. Since protecting entire houses may not be always feasible, retention of wood elements is proposed as an alternative path for maintaining and cherishing this ancient and irreplaceable heritage.

The circular economy (CE) requires that ‘used’ materials continue to be in circulation after their initial use has finished. Materials are typically sourced in the building industry as new materials in bulk that carry guarantees of safety, quality and delivery. The distributed and diverse origins of used materials mean that they do not normally carry these guarantees. Furthermore, existing potential procurement systems for reused materials such as eBay allow users to present their auctions in a loosely structured form that can make it difficult to manage and procure multiple items to satisfy the quantities, condition and type required by the contractor. Therefore, this chapter proposes an information system to support the agile procurement of used materials at a scale that is appropriate for construction projects to support the CE. It describes the development of a tool called ‘JunkUp’ that would allow multiple auctions of similar items from diverse sellers to be managed as a single item. Based on this system, in future work, it should be possible to use this tool to test strategies to address the risk to safety, quality and delivery of reused materials in construction. This should ultimately lead to the opportunity to increase material reuse (and reduce waste) in the building and construction sector and support an agile CE for the building industry.

Outlines the problems and pressures inherent in the processes of conservation in Italy, particularly in the light of EC regulations and the high concentration of artistic and architectural heritage sites in the country. Gives a background to the architecture and construction of towns in Italy, and explains the current system of planning regulations and the problems attached to it. Explores the situations in Bologna and Florence, giving examples of the diversity of approach of municipal authorities. Suggests that many opportunities for British surveyors exist in Italy, due to a distinct lack of organization and management in many restoration projects underway.

This seventh article in the “Small urban spaces” series deals with the “hardware” of squares and similar enclosures including statues, seating and bollards. Railing and pavings have been covered in earlier articles.

Today three out of four Europeans live in towns and cities. Urban areas are concentrated with most of the environmental challenges facing our society, but also bring together the commitment and innovation needed to resolve these challenges. The European Commission has long recognised the important role that local authorities play in improving the environment and their high level of commitment to genuine progress; in this regard, it launched the European Green Capital Award (EGCA) in 2009 as an initiative to promote and reward cities making efforts to improve the urban environment and move towards healthier and sustainable living areas. The EGCA is given each year to the city deemed to be most deserving on the basis of 10 environmental parameters: the local contribution to global climate change, local mobility and passenger transport, the availability of local public open areas, the quality of local ambient air, noise pollution, waste production and management, water consumption, waste water treatment, environmentally sustainable management of the local authority and sustainable land use.

This chapter has been composed on the basis of materials found in the literature and on websites, and thanks to contacts created with some departments of the municipalities considered.

Stockholm, Hamburg and Copenhagen represent the winning cities in 2010, 2011 and 2014, respectively. This chapter focuses on the successful experiences of these cities, which show how the convergence of the environmental and economic development is important in order to reach sustainable development.

This chapter shows that environmental protection must not be thought of as a cost for our society. On the contrary, it illustrates how it can support economic development in urban contexts if well planned, managed and participated in at a municipal scale.

The purpose of this paper is to explore the intersection of building material reuse and heritage value, and raises questions about how “preservation” has traditionally been defined and conceptualized. With a grounding in the realities of global climate change, the paper argues for further research on the topic and for the active engagement of the preservation field in reuse efforts.

After a review of existing literature, this study takes a descriptive and conceptual approach to explore the heritage values generated through material reuse.

This paper finds that processes of material reuse are richly embedded with heritage value and offer a conceptual challenge to established modes of heritage practice.

The findings of this paper suggest that heritage practitioners should actively engage with material reuse efforts to better understand the heritage values generated from such processes. Areas of future research and collaboration are identified.

Despite their intrinsic interaction with aged and existing infrastructure, there has been limited engagement in the heritage and preservation field with the topics of deconstruction, building material reuse, or construction and demolition waste practices more generally. This paper thus provides descriptive research on a topic that has been unevenly explored.

Building on the thematic intersection of architectural waste and conservation, the purpose of this paper is to look at the demolition and deconstruction of Honest Ed’s and Mirvish Village – an iconic site in downtown Toronto. In doing so, it examines contradictory site values and tensions inherent in sustainable heritage practices.

This article uses a “follow-the-thing” methodology – an approach developed by the cultural geographer Nicky Gregson (Gregson et al., 2009) – to demonstrate how engaging with processes of building demolition and deconstruction can begin to reveal the site’s multiple legacies.

Recognizing that materials are not lost, but instead move through and are determined by various physical, spatial and cultural conditions, this piece demonstrates how an attention to the choreography of demolition and deconstruction may deepen our understanding of notions of ownership, responsibility and stewardship.

Exposing material trajectories and various actors in the chain, this work challenges the save/discard binary which underpins conventional heritage practices and provides insight into new ways of considering the significance of demolition/deconstruction sites as well as broader social and environmental landscapes implicated in its reconfiguration.

Whereas heritage value is often defined in contrast with perceptions of loss, this piece suggests that engagement with processes of demolition and deconstruction constitutes a form of conservation that simultaneously acknowledges the difficult heritage of these procedures, while also commemorating the site’s ongoing transformation.

The purpose of this paper is to address a gap in current heritage practice within the USA, as defined by the US Secretary of Interior’s Standards, which offers no treatment for a building entering the end of its lifecycle.

Building on research conducted for “Deconstructing the Culture of Demolition,” Master of Design Studies thesis completed in 2018, this paper seeks to better understand how deconstruction industry practice could be changed by the inclusion of heritage values through a case study of the sustainability non-profit Emergent Structures of Savanah, Georgia.

The benefits of replacing demolition with deconstruction extend beyond the preservation of materials alone. Applying critical heritage theories to deconstruction practice addresses challenging issues in the discipline, such as mutability of heritage objects and equity in heritage practice. Deconstruction redefines the concept of death in the built environment, harnessing its energy to serve the heritage goals of memory, revival and sustainable community development.

The findings are based on real-world practice, linking heritage methodology to deconstruction practice. These examples will be useful to preservation professionals who deal with demolition in the course of their work, to rethink the idea of waste and value in heritage practice.

This paper explores best practices in promoting heritage value and community engagement through deconstruction. This insight will promote interdisciplinary communication around historic materials and their treatment, which remains unexplored in both deconstruction and heritage research.

The study aims to explore factors affecting stilt construction and the possibilities of using innovative materials and construction methods to re-establish the traditional stilt structures.

The study employs a qualitative research method using an in-depth interview with selected architects to document experience and insights of the architects on the challenges and possibilities of using innovative materials and construction methods to re-establish the traditional stilt structures. Purposive sampling was used to determine the respondents for the study. Architects with experience designing stilt houses in architects' architectural practice were selected to take in the study.

Study revealed that generally architects are keen on using stilt structures. Building materials and costs associated with designing and constructing stilt structures were identified as the key challenges. However, architects suggest using recycled building materials as possible solutions to encourage the construction of stilt structures in Malaysia. The architects also preferred to use hybridized recycled materials for stilt structures as hybridized materials have improved structural properties and functions. Additionally, the study identified “psychological hesitation” or “accessibility” as a factor affecting the construction of stilt buildings.

Throughout this study, some limitations have been dealt with. The first is the limitation of sample size. Contemporary stilt architecture is not very common in Malaysia today, and not many architects have experience in designing stilt houses. Although the method of purposive sampling was used, a larger sample size could have generated a more diverse result. The second limitation is the dearth of research on contemporary stilt houses in Malaysia. As stilt construction is uncommon in Malaysia and the existing material focuses primarily on traditional Malay houses, this has been one of the major challenges. Finally, most of the literature on stilt construction is from Southeast Asia, limited or insufficient studies and literature on local stilt construction would have a greater benefit to the study.

The outcomes from this study would benefit the scholars who have an interest in exploring stilts construction in contemporary architecture as well as innovative construction materials and construction methods. As the study brings forth the challenges and possibilities of restoring the traditional stilt constructions, the study can be used as a reference by designers to garner a deeper understanding of the traditional stilt construction and encourage designers to focus on possible innovations for stilt construction from the aspects of materials and methods in ensuring the traditional element is present in future design and construction.

The study is a response to an obvious dearth body of knowledge in stilt construction in the Malaysian context. The study identifies the key challenges and possible and practical solutions. The findings of this study represent a scholastic effort that can be used as a reference by academics and scholars.