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The embodied carbon dilemma

Paul Maher
27/2/2023

Future Reference

The severity of the climate emergency cannot be understated. Embodied carbon and the reuse of existing buildings remain under-represented in policy, procurement, and the design of the built environment sector. This presents a dilemma: how can we harness, rather than squander, embodied carbon?

DIT Kevin Street under demolition. Photograph by Karl Matthews [1]

While government plans like Housing for All targets an upscaling in construction, the Climate Action Plan aims to halve the country’s emissions by 2030. It is impossible to square the circle without significant changes to how buildings will be designed, procured, and built. The mitigation of one crisis is likely to worsen another.

Many perceive climate change as a sort of moral and economic debt accumulated since the beginning of the industrial revolution. To the contrary, more than half of the carbon produced by the burning of fossil fuels has been emitted in just the past three decades [2]. To put this into context, since the premiere of Seinfeld there has been as much damage done to the fate of the planet and its ability to sustain life, as the rest of the centuries and millennia of human existence combined. The most perverse aspect of this fact is that during this period we have – unlike previous generations – been acutely aware of the impact of fossil fuels on the planet.

The world’s people will face untold suffering due to the climate crisis unless there are major transformations to global society. Yet, despite the continued unequivocal warnings, a kind of apocalyptic paralysis descends on even the most conscientious of us – as is the case with any sustained exposure to the subject of climate change. ‘Human kind, cannot bear very much reality’, as T.S. Eliot muses in The Four Quartets.

In modern history, there has been an inextricable link between economic growth and increased carbon emissions, of which a key component has been the construction industry [3]. The UN’s Intergovernmental Panel on Climate Change (IPCC) has made clear that the world has little over a decade to radically reduce its carbon emissions in order to avoid catastrophe [4]. Yet construction remains skewed towards energy-intensive, new-build development.

The Irish Green Building Council’s (IGBC) Building a Zero Carbon Ireland looks at the impact of Ireland’s built environment across its whole life cycle. It shows that the construction and built environment sectors account for 37% of Ireland’s carbon emissions – equalling that of the much-maligned agricultural sector. The IGBC have indicated that without significant changes to the carbon intensity of new construction and utilisation of existing building stock, not only will targets be missed but emissions may actually grow.

Whereas inroads are being made in the reduction of operational carbon (the energy used to heat, cool, and light our buildings), there appears to be little progress in the reduction of embodied carbon in the built environment in Ireland, which international studies indicate can result in damning consequences [5]. While government plans like Housing for All targets an upscaling in construction, the Climate Action Plan aims to halve the country’s emissions by 2030. It is impossible to square the circle without significant changes to how buildings will be designed, procured, and built. The mitigation of one crisis is likely to worsen another.

Currently the construction industry is based on a wasteful economic model which often involves tearing down existing structures and buildings, disposing of the resulting material, and rebuilding anew. Adaptive retrofit can account for substantial embodied energy savings by repurposing existing buildings – compared with the embodied energy costs of demolition and new build. The reuse of existing structures can appear to present creative limitations, however, such constraints can provide the basis for more imaginative responses. Innovative solutions can find value in the buildings that have been left behind, for example in Sala Beckett by Flores & Prats Architects, pictured below.

Spanish practice Flores & Prats’ illustrate with Sala Beckett, Barcelona, how creative retrofit of a derelict neighbourhood grocery store can produce a theatre and cultural institution deeply rooted in its architectural and historical context. Their winning competition entry stood out for being the only submission not to propose full demolition of the existing building.

Encouraging the imaginative reuse of buildings has importance beyond sustainability, such as retaining social, historical or cultural characteristics of the built environment and providing an alternative to help to alleviate the wave of corporate homogeneity sweeping over the urban realm in Ireland, which is particularly notable in Dublin. In the UK, proposals to demolish and rebuild the M&S flagship store on Oxford Street has sparked a debate on carbon footprints and building retrofits, ultimately resulting in a public enquiry. The conversation on embodied carbon needs to come to the fore in Ireland.

For example, in the Angel Building, by Alford Hall Monaghan Morris, the concrete frame of an existing 1980’s office building is re-used, extended, and re-wrapped with a highly energy-efficient, glazed skin. The resulting Stirling-Prize-nominated building bears little resemblance to the original tired 80s office block, however, much of the embodied carbon of the primary structure is retained. In recent months, the reinforced concrete frame of the former DIT Kevin Street building was demolished and disposed of with little concern evident for its environmental impact. Could such the approach applied to the Angel Building have been implemented on the DIT Kevin Street site?

Where retention is impossible or unsustainable, the focus must immediately turn to low-carbon solutions. Paris-based office Barrault Pressacco are using sustainable materials as a primary element in the design of several low-carbon social housing projects. Ambitions to build with a lower carbon footprint have driven the practice towards construction with solid limestone as an alternative to concrete, and to building using biomaterials, including wood and hempcrete.

Barrault Pressacco’s apartments, Rue Oberkampf, Paris 11.  Photography by Maxime Delvaux

While there are some commendable low-carbon efforts internationally, the widespread favouring of carbon-intensive construction methods as the default is predictable; most systems mandate the use of concrete and steel. Typically, the pursuit of a low-carbon solution will require a monumental effort to appease and/or convince the client, building control, planning authority, fire officer, quantity surveyor, etc. The path of least resistance will be the tried-and-tested traditional methods of construction.

In order to promote the reuse of existing buildings and low-carbon construction, we need to address and remove the barriers that are currently in place. The Architects’ Journal Retrofirst campaign identifies three such barriers: taxation, policy, and procurement. Followig their suggestions, we could first cut the VAT rate on refurbishment to incentivise the reuse of existing buildings. Secondly, we could further promote the reuse of existing building stock and reclaimed construction material by introducing new clauses into planning guidance and building regulations. Thirdly, we could stimulate the circular economy and support a whole-life carbon approach in construction through publicly-financed projects [6].  

The built environment sector has a vital role to play in responding to the climate emergency. Because construction accounts for such a large percentage of Ireland’s emissions, it should be a cause for optimism; it means we have the power to significantly reduce the country’s carbon footprint by changing our approach to how we design, regulate, and construct the built environment. The solutions already exist, we now need to implement them.

Encouraging the imaginative reuse of buildings has importance beyond sustainability, such as retaining social, historical or cultural characteristics of the built environment and providing an alternative to help alleviate the wave of corporate homogeneity sweeping over the urban realm in Ireland, which is particularly notable in Dublin.

Future Reference is a time capsule. It features opinion-pieces that cover the current developments, debates, and trends in the built environment. Each article assesses its subject through a particular lens to offer a different perspective. For all enquiries and potential contributors, please contact cormac.murray@type.ie.

Future Reference is supported by the Arts Council through the Architecture Project Award Round 2 2022.

References

  1. K. Matthews, DIT Kevin Street Demolition, [online image], 15 October 2021, https://www.flickr.com/photos/turgidson/51635613291/, (accessed 22 February 2023).
  2. D. Wallace-Wells, The Uninhabitable Earth, Penguin Random House, 2019.
  3. W. Hurst, Introducing RetroFirst, [website], 2019, https://www.architectsjournal.co.uk/news/introducing-retrofirst-a-new-aj-campaign-championing-reuse-in-the-built-environment, (accessed 22 February 2023).
  4. Intergovernmental Panel on Climate Change, Climate Change2022: Mitigation of Climate Change [website], 2022, https://www.ipcc.ch/report/sixth-assessment-report-working-group-3/,(accessed 22 February 2023).
  5. In the UK the Royal Institute of Chartered Surveyors has found that, by practical completion stage, 35% of the whole-life carbon of a typical office development will already have been emitted, while the figure for residential is 51%. Royal Institute of Chartered Surveyors, Whole life carbon assessment for the built environment, [website], 2017, https://www.rics.org/profession-standards/rics-standards-and-guidance/sector-standards/building-surveying-standards/whole-life-carbon-assessment-for-the-built-environment, (accessed 22 February 2023).
  6. W. Hurst, Introducing RetroFirst, [website], 2019, https://www.architectsjournal.co.uk/news/introducing-retrofirst-a-new-aj-campaign-championing-reuse-in-the-built-environment, (accessed 22 February 2023).

Contributors

Paul Maher

Paul Maher is an architect based in Dublin. Paul studied at the Dublin School of Architecture, DIT, and the University of Westminster. He has since worked for award-winning practices in New York, Rotterdam, and London. Paul has worked on projects in the civic, residential, educational, and public realm sectors. His work has featured in publications such as The Architects' Journal, Casabella, Drawing Matter, and Architecture Today.

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Patriarchal powers after dark: the feminist right to the night

Aoife McGee
Future Reference
Aoife McGee
Cormac Murray

Our present unequal urban structure is not accidental, but by design [2, 7, 13]. It emerges from systemic failure to acknowledge the needs of women and other genders that do not conform to the heteronormative, able-bodied white male default. This is evident in the restricted mobility of women in the city, the scheduling of the workday that often interferes with caring responsibilities and the threat of Violence against Women and Girls (VAWG) [1] that exerts control over women’s bodies and how they inhabit space. Darkness alters perception, diminishes passive surveillance, and reshapes social dynamics, often concentrating alcohol-fuelled economies and male-dominated activities in specific zones. After dark, streets feel dangerous, spaces of refuge are inaccessible, and mobility options are more complex. The mental map of the city shifts according to the geographies of fear and perceived unsafety. [2, 3] 

Women’s mobility becomes constrained not only by physical design but also by cultural expectations, risk calculations, and the burden of self-protection, the all-too-familiar and emotionally exhausting ‘safety work’, such as altering routes to get home safe, keys in the pocket, private taxis at night to avoid public transport, and journey-tracking text messages. Feminist scholars have described this as a temporal injustice: access to the city is structured not only by where one can go, but when and under what conditions [4, 5]. The “right to the night” thus extends Henri Lefebvre’s right to the city into the temporal domain, asserting that equitable urban citizenship must include a safe and meaningful presence after dark [6]. Lefebvre imagined the city as a process, not finite, which aligns with Doreen Massey’s consideration of urban space as dynamic “never finished, never closed…as a simultaneity of stories-so-far’.

Caroline Criado Perez exposes the pervasive gender data gap, which perpetuates the gender inequalities and promotes a neoliberal agenda which seeks to protect male supremacy [7]. She argues the lack of sex-disaggregated data results in a world designed by and for men, effectively rendering women invisible and creating significant, often dangerous, inequalities. Architecture, urban design, and planning have historically privileged male norms of movement, visibility, and occupation, resulting in nighttime landscapes that intensify vulnerability for some and enable freedom for others. Can we play a role in addressing this inequity of freedom by reflecting on the status quo and challenging the lived reality that restricts women at night?

Through a radical feminist lens [8], which understands intersectionality [9] and seeks to dismantle patriarchy as the social system of women’s oppression, we can reframe our approach to designing public spaces to promote greater social justice. Emerging feminist research positions co-design as a gender-responsive architectural method that can translate lived experiences into spatial change.

Milan Gender Atlas pursuesan innovative exploration of urban phenomena in the city, supported by theMunicipality, which intends to promote direct action. Source: criticalspatialpractice.co.uk/milan-gender-atlas-2021/

CollectiuPunt 6, are an intersectional feminist collective who challenge spatialhierarchies and power imbalance to address how these impact urban space. Source: www.punt6.org/en/en-punt-6/

Rather than treating participation as a procedural requirement, these examples advance co-design as a supportive knowledge-producing practice that can challenge the male-normative assumptions embedded in briefs, standards, and spatial typologies. Feminist urbanism has long argued that everyday experience - particularly the embodied, emotional, and temporal dimensions of navigating the city - constitutes a form of expertise [8]. Women’s diverse narratives of fear, avoidance, and adaptation are spatial data that reveal how environments function in practice. This data then emboldens architects and urban designers to act with purpose, respectful of the needs of those the public space will serve.

What methodologies might we employ to understand lived experience at night? One such critical framework is Doreen Massey’s theory of Power Geometry [10]. Massey argued that space is constituted through relations of power that enable some groups to move freely while constraining others. Applied to night-time urbanism, Power Geometry reveals how the ability to inhabit darkness is itself a privilege. Men, particularly those aligned with dominant social groups, often move through nighttime space with relative autonomy. In contrast, women, girls, and other marginalised groups experience heightened surveillance of their own behaviour and curtailed spatial freedom. 

Co-design, a participatory design approach, when informed by feminist principles seeks to redress gender inequality and elevate lived experience as design expertise, redistributing epistemic and spatial power. When women and girls participate in defining problems and generating solutions, they expose the micro-geographies of safety and danger that conventional planning overlooks: poorlylit desire lines, bus stops without escape routes, dead frontages that eliminate refuge, or thresholds where harassment routinely occurs. Translating these insights into architectural parameters can reshape environments in ways that support presence rather than avoidance. Importantly, such changes are not limited to token gestures like brighter lighting, increased surveillance or police presence. Feminist design emphasises relational safety: the presence of other people, diversity of activities, and spaces that support care, waiting, and rest.

Massey’s framework also cautions that co-design does not automatically equal empowerment. Power relations persist within participatory processes themselves. Whose voices are heard, whose knowledge is deemed credible, and who ultimately controls implementation remain critical questions. For co-design to translate into spatial change, it must occur early enough to influence briefs, budgets, and land-use decisions, and must be supported by institutions capable of acting on its outcomes. Otherwise, participation risks becoming symbolic, leaving the underlying geometry of power intact. State systems must support the opportunity for meaningful engagement and the dynamism that is required for context-specific approaches to emerge, led by the community [11].

Architecture has the capacity to materialise social relations. Nighttime environments are not neutral backdrops but active agents shaping behaviour and perception. By treating women’s diverse lived experiences as architectural knowledge, designers can move beyond security-driven responses, applying defensible architecture strategies [12], such as Safety by Design, toward supportive environments that promote inclusivity. Democratic planning processes in the form of gender-responsive co-design do not simply act as a tool for consultation but a mechanism for producing new forms of space - spaces where the right to the night is not aspirational but meaningfully constructed. Co-design then becomes an architectural practice of spatial justice, promoting equitable access to the city after dark.

27/4/2026
Future Reference

The design of our cities stems from long-standing patriarchal power systems that govern urban development, influence financial allocation, compound social inequality, and subjugate women. These inequalities are further amplified at nighttime. Within a patriarchal planning system, how can we design safe, inclusive and accessible urban spaces which remain agile to the demands of all genders?

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The boy who cried renderings: the ethics of architectural visualisations

Hermano Luz Rodrigues
Future Reference
Hermano Luz Rodrigues
Cormac Murray

Although scattered voices have raised concerns over the years, debate within the field on the problems associated with architectural renderings have remained scarce. The heightened visibility and public concern surrounding renderings would seem to warrant greater scrutiny; yet, broadly speaking, this has not yet materialised [1].

Instances of public critique and backlash against renderings continue to surface in public discourse. Earlier this year, an Instagram reel depicting the contrast between early renderings and photos of realised public constructs in Copenhagen received over 2.7 million views and thousands of comments [2]. Also recently viral was AntiRender, a website allowing users to upload a rendering and, in return, receive a bleak, ‘realistic’ reinterpretation of it, stripped of ‘happy families’ and ‘impossibly green trees’ [3]. In the past decade or two, more consequential cases have emerged, including instances in which renderings became central to an organised community protest[4], a pre-emptive project closure and resignation [5], and even the unlawful replication of a project [6].

A reason for the passivity towards the responsibilities of renderings  may lie in the tendency to frame present concerns through a ‘this-has-always-existed’ lens. A recent news article on manipulative images, amid widespread anxiety over the harmful spread of AI deepfakes, illustrates how concern is raised only to be quickly shut down [7]. Its central takeaway is that manipulated images are nothing new: the author alleges such images have long existed. Attempts to discuss renderings, whose current debates on imagery deception and societal harm are not too distant from those surrounding deepfakes, are similarly curtailed by this reflex.

This appeal to a limited interpretation of tradition is problematic. While it is sensible to situate contemporary concerns within their histories, it is specious to use historical resemblance to trivialise and undermine present problems. By assimilating current issues to past instances, the view risks turning a blind eye to key differences, such as scale and access, that may significantly alter their impact.

More importantly, this tendency assumes that direct continuity or lineage can be traced among imaging technologies; for example, that renderings today are essentially the same as those referred to in the past as renderings. Yet, as John May argues, imaging technologies have undergone foundational transformations such that they may share ‘virtually nothing in common’ with earlier iterations of the same technology beyond name and resemblance [8]. However, making sense of what has changed, and how, is complicated. Architecture, he suggests, has struggled with this confusion [9].

Susan Piedmont-Palladino similarly notes foundational shifts in the evolution of architectural renderings and how such shifts altered and obscured their understanding [10]. In earlier eras, she observes, architectural renderings were ‘more akin to paintings,’ but later they were more closely aligned with photography. These categories carry widely diverging public associations, with the former tending toward imaginative connotations and the latter toward associations with truth. Renderings’ sly movement between these fields has led to what Piedmont-Palladino describes as an ‘almost exquisite confusion between real and unreal.’

Renderings became entangled in interpretive ambiguity not only through visual changes, but also through their increasing alignment with data-driven simulation. This trajectory persists today, as rendering practices rely on increasingly sophisticated digital models, environmental data, and physics-based simulations. Previous literature indicates that improvements in accuracy were often presented as a means of mitigating renderings’ ethical implications [11]. However, the realisation of such aspirations has, in many ways, had the opposite effect. By incorporating greater fact-resemblance, renderings have reshaped how seriously their imagery are perceived. This has and continues to intensify public expectations of trust and validity, raising the stakes of their representations.

These technological and associative developments affect public judgment and understanding. There remains significant confusion regarding how architectural visualisations should be framed and how their truth-values versus their imaginative status ought to be assessed, despite their ubiquitous presence in decision-making processes. This evolving ambiguity should not be overlooked. However, ethical concerns and questions of trust surrounding renderings have become so entrenched that the topic is often treated as settled, and new calls for attention are readily dismissed. Much like the cautionary tale of The Boy Who Cried Wolf, concerns regarding renderings are discounted because they resemble earlier alarmism. Yet it is worth recalling that, in the tale, despite the town’s seemingly justified dismissal, in the end the wolf was dangerously real.

23/3/2026
Future Reference

In professional discussions around architecture today, renderings are the elephant in the room. They are a principal means of communicating large-scale project proposals and frequently face widespread criticism on their accuracy and ethics. As a general subject, however, they remain marginally studied. Are attacks on their realism merely hysterics, or a cause for concern?

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For the want of a bike shop, we lose the city

Róisín Murphy
Future Reference
Róisín Murphy
Cormac Murray

McCormack’s was established in 1984, its current owner is Daire O’Flaherty. At only 18m2, this shop had a powerful presence. It poured out onto the footpath with negotiations of punctures, pedals, pumps, prices, all conducted in the plein air of Dublin's Appian way: Dorset Street. Pronounced in dublin-ese with two distinctly independent syllables:  Dor-set, the common pronunciation is miles from the English variant, and lightyears from the ancient route it is descended from: Slige Midluachra [1].

Unlike the case of the ill-fated Delaney’s bike shop in Harold’s Cross, allegedly Dublin’s oldest [2], it was not the increasing cost of business that shut McCormack’s. Right up to its closure, this institution was hopping, with a lively mix of locals and commuters dropping by. According to the shop owner, it was closed because the landowner valued the site more highly once it was vacant [3].

The bike shop was part of a three-storey suite of early Victorian buildings, with a modified-Georgian terrace lining the west of it. Over the past few years its neighbouring buildings have similarly been drained of residential and retail tenants. Relatively recently this city block was home to a multitude of residents and traders. Today the signature calling card of vacancy is visible: permanently-opened windows in the upstairs accommodation, allowing the elements in. Nobody lives or works here to shut them, to provide essential daily care for the properties.

Daire is well-versed and articulate in what makes a city both at the ground level and also the urban theory behind it. On Dorset street, he had a frontline view of Dublin’s traffic congestion during the morning rush hour, the worst it has ever been. He sees an opportunity in the widespread overhaul of the city’s transport system, which is being redesigned to prioritise public transport for decarbonisation and public health: more and more people are choosing bikes to get into work, and live healthily in the city. In his view bikes are a key component of any liveable city, like Paris or Amsterdam perhaps. What good will the ambition to encourage cycling be, without centrally-located facilities for bike repair and maintenance? It is akin to building a motorway without including for new garages or fuel stations.

McCormack’s now has a premises in Drumcondra, not far from its former home. Daire has yet to establish whether business has actually improved. However the same lack of protection exists in the new premises. While there are limitations to hosting a  bike shop in a small retail unit (cycling shops are ideally suited to larger premises), McCormack’s 41 years of business clearly evidences the ability to adapt and survive in small, tight spaces. Shutting small independent retailers down will make larger out of town suburban shops more tempting to customers. It also offloads a responsibility to repair the existing urban fabric – an essential and under-practised aspect of the circular economy.

At a municipal level, there are no obvious consequences for ousting an established small business tenant in pursuit of greater profit, nor any meaningful incentives for landlords to help their continued operation. The desire to sell off buildings with a clean slate of no sitting tenants is widespread in Dublin, and the results are most keenly felt by the communities who make use of small businesses.

The closure of specialised small businesses, like bike shops, locksmiths, butchers, grocers, are part of a broader list of fatalities to our city, with the loss of art and cultural spaces, pubs and restaurants regularly causing public outcry. In an ecosystem of property speculation, few tenancies are safe. The liveable city we aspire to is increasingly precarious.

While these changes can seem inevitable and often happen stealthily over time, the failure of policy to protect small independent businesses will cost the city in easily-measurable ways. Daire famously once broke up a fight between two locals arguing over money; he, and many others like him, are eyes, ears and a friend to the street. This is increasingly relevant when the media and political debate focus on inner-city crime and public safety.

The fight for the city is not just in art spaces, pubs, heritage properties, it is the fight to protect small independent retailers and those committed to living and doing business in our city. If Dublin is to stay open for business, it has to protect them too. If indeed ‘we are Dublin Town’ let us aim to be like Paris or Berlin, with a feast of small independent retailers providing vibrancy to streets [4]. Task forces looking at the bigger picture of our urban centre, encouraging external investment in the city, need to be clear-eyed on the draining of its smaller, but equally essential, tenants. Otherwise fixing the city through grand gestures will be like trying to save a marriage, while having an affair.

15/2/2026
Future Reference

After forty-one years in business, what was probably Dublin’s smallest bike shop: McCormack’s on Dorset Street, pulled down the shutters for the last time. In this article, Róisín Murphy uses the closure as a lens on the wider disappearance of small, long-standing businesses from the city, asking how liveable Dublin can remain if independent traders and venues continue to vanish.

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