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Making the case for adaptive reuse

Séamus Guidera
15/5/2023

Present Tense

How we work is changing, where we work is changing, and with that, the places we work must change too. The most sustainable place to work is often the building that is already built but there can be obstacles and challenges in achieving this, as explored in this article.

Sketch study in reuse. Image by Séamus Guidera

Within the development industry, we must see the opportunities in retaining, upgrading, and extending to help create the offices of the future.

Recent changes at all stakeholder levels in commercial construction have driven a charge in refurbishing and extending existing building stock rather than building new [1]. Within the development industry, we must see the opportunities in retaining, upgrading, and extending to help create the offices of the future. The office has evolved over the past number of decades – client expectations for ‘floor-to-ceiling height’ has increased to allow brighter interiors and more openness on a typical office floor plate (e.g. the British Council for Offices (BCO) recommends a 2.8m minimum) [2]; servicing requirements have grown both in floor and ceiling voids (150mm and 550mm respectively); while design for fire safety, universal accessibility, and staff welfare facilities have prompted changes to the layout of a typical office core. Lift sizes have expanded, cycling facilities are paramount, while fire escape and combustibility are key concerns.

The expectations of office facades have also increased. Modern workplace facades must work harder to serve the dual purpose of communicating identity and integrating architecturally, while reducing the building’s carbon and financial cost going forward. Modularity, and off-site Modern Methods of Construction (MMC) have become a crucial part of early design consideration. An inability to meet sustainability targets has resulted in the demolition of some office buildings, and warranted justification for building new and better, albeit at an expensive up-front carbon cost. Through design thinking, architects must share our commercial design knowledge to help clients evaluate real estate opportunities where refurbishment can optimise strategic outcomes.

Take for example a recently completed project in Dublin by my own practice RKD: Baggot Plaza for client Kennedy Wilson. Originally an 8500m² 1970s office across three buildings in a prime Dublin 4 location, intensive study determined that the existing building structure was capable of being stripped back and extended on several sides, then fitted out to the level expected of the fit-out tenant market. Re-using and extending the primary structure gave the development a one-year head start on competing new build developments. The design solution doubled the square meterage to 17,000m² while retaining the existing building shell. A new facade was added, and double-height spaces were introduced to increase daylight internally. The project was completed in eighteen months, a significant programme reduction on a new build, while improving the BER from F to B1, and achieving LEED Gold in the process.

Baggot Plaza by RKD.

With this in mind, the recently implemented Dublin City Development Plan 2022-2028 [3] now requests the justification for demolition of buildings as part of the planning process. This justification refers to both the retention of our built heritage, and the carbon implications of demolishing and rebuilding. This move toward retention mirrors what commercial clients are seeking – a building that is truly sustainable given the ESG (environmental, social, and governance) demands of tenants in the current office market.

Architects should work with clients to establish realistic and achievable sustainability targets at an early design stage and explore the benefits of retaining as much of the carbon-intensive structure in an existing building as possible. This might mean maintaining the structural grid and extending both laterally and vertically, looking at a new facade, or adding a new core that meets many of the modern building regulation requirements. Most often, many of these decisions help improve the performance of a building and keep the dreaded ‘stranded asset’ at bay. The benefits of retention can also yield more than sustainability targets. Good architectural practice should include a commercial design methodology which explores the potential for incorporating existing buildings as part of new development. This has both cultural and heritage benefits, more readily integrating new developments into existing urban contexts.

There is more to the Dublin City Development Plan 2022-2028 which impacts on our decision to build afresh. New office buildings over 10,000m² now must provide 5% of office net internal area as ‘Community Use’. This requirement is new to the Dublin office market and has added cost uncertainty to an already expensive construction process. Car parking allowance has also been reduced to zero in certain areas such as Zone 1, an inner-city zone served by more public transport. As this can still be seen as a risk in attracting certain tenants, an alternative approach might be to retain the building and a proportion of the existing car parking while omitting the 5% requirement for additional community space, thus incentivising adaptive reuse.

In summary, we must see the inherent potential of refurbishment, conversion, and extension in creating commercial developments that minimise embodied carbon and maximise the character of existing buildings. While admittedly not all buildings are appropriate for refurbishment to current standards and expectations, good commercial design practice and policy incentives should be focused on providing the knowledge and tools to help prioritise reuse in realising their strategic ambitions.

Architects should work with clients to establish realistic and achievable sustainability targets at an early design stage and explore the benefits of retaining as much of the carbon-intensive structure in an existing building as possible.

Present Tense is an article series aimed at uncovering perspectives and opinions from experts in their respective fields on the key issues/opportunities facing Ireland's built environment. For all enquiries and potential contributors, please contact ciaran.brady@type.ie.

Present Tense is supported by the Arts Council through the Architecture Project Award Round 2 2022.

References

1. L. Daly, ‘Irish Developers Turning Offices into Apartments as Commercial Market Demand Wanes’, The Times, 19 February 2023, https://www.thetimes.co.uk/article/irish-developers-turning-offices-into-apartments-as-commercial-market-demand-wanes-03r8p7mf0, [accessed 14 May 2023].

2. British Council for Offices, BCO Guide to Specification 2019, https://www.bco.org.uk/Research/Publications/BCOGuideToSpec2019.aspx, [accessed 14 May 2023].

3. Dublin City Council, Dublin City Development Plan 2022-2028, https://www.dublincity.ie/residential/planning/strategic-planning/dublin-city-development-plan/development-plan-2022-2028, [accessed 14 May 2023].

Contributors

Séamus Guidera

Séamus Guidera is a registered architect and Director & Commercial Sector Lead for RKD Architects in Dublin. He has participated in numerous RIAI, AAI, and cross-sector forums, along with a role as a studio tutor in the UCD School of Architecture.

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The office is hibernating

Séamus Guidera
Present Tense
Séamus Guidera
Ciarán Brady

The last decade had seen technology companies grow at a rate at which commercial property developers cannot keep up [1]. The majority of office space had been designed on a speculative basis. Build a ‘Grade A’ office, and they will come – but this is changing. Demand no longer exceeds supply, and the way we work has changed, while the way we occupy our offices is changing too. With lower occupancy and flexible working, the role of the ‘HQ’ has arguably become more important in its physical presence for larger companies. An office location, design, and provision of amenities are the bricks-and-mortar branding an organisation often requires. The machismo associated with office buildings of the past is no longer the best means to externalise one's values. Hugh Pearman once described Wilford & Sterling’s No. 1 Poultry as “exuding an astonishing sense of power and purpose” [2]. Kevin Roche, decades earlier, used similar power and purpose to make the workers of the Ford Foundation feel important. In an Irish context, Arthur Gibney strove to make the user feel important in Merrion Hall (1973), introducing his client to the Burolandschaft concept of office interiors, and an "exercise in the geometry of the module" [3] in both building and landscape terms, accentuating the structure of the pre-cast concrete frame. The theory goes that these important workers tended to be happier, more productive, and stay with the company longer. However, the design of these workplaces is changing again, and the changing culture of work is the first reason why.

The second reason is the elephant in the room. According to the UKGBC, 80% of buildings that will be occupied in 2050 have already been built [4]. 85% of Irish office buildings are below a B rating [5] and c. 15% of commercial buildings in Ireland are vacant [6]. We have an increasing amount of low-grade office space, bound for obsolescence – the dreaded stranded asset again. A change of use to residential makes perfect sense for some buildings, but not all. Site values, and potential return on office developments still hold more value than an occupied block of apartments in central locations. The structural design of more recent office buildings also limits the potential change in to residential. The office building of twenty-first-century Dublin, with small atria, deep floor plates, and bulging plot ratios are not well suited to change of use. If we believe in a future for the office, then we need architecture to ensure existing buildings can become offices of the future.

Nos. 4-5 Grand Canal Square, by Daniel Liebskind & MDO. Image credit: MDO Architects

What does this mean in design terms? Simply put, this is about design either side of the facade, while the facade remains. Feature facades have become ubiquitous with high-end new build offices – leading to monikers such as the ‘Cheesegrater’, ‘Gherkin’, etc., which all add to the value a potential tenant puts on their choice of building. These building exude a company’s core perception of itself, and its place in its community. Fit-out design, and place making give tenants a real ability to make staff feel important, and, of course, to be good neighbours. The opportunity for a cloud-based company to drop anchor and show their staff, and indeed their community, that they care is most often done through building. The best building to do this in, is one that already exists.

We need to embrace the large-scale refurbishment of existing office buildings to provide the next wave of ‘new offices’ as and when they come. The way we have designed speculative offices in the recent past, with an unknown future user, has been wasteful. We have provided fit-outs to entice a tenant, which will subsequently be ripped out and replaced. We have designed structures, vertical circulation, and sanitary spaces to allow for maximum occupancy, when this is often not required. The constraints that come with an existing building should, and can, be embraced. Floor-to-ceiling minimums of 2.8m are an arbitrary, agent-led, recommendation without taking in to account the depth of the floor plate. The over-design for floor loadings, mechanical ventilation, WC provision, lifts, etc. all encourage us to build new. As architects, we can strive to prove the workability of retention, and more so prove that future workplaces can change, grow, and adapt as required.

No.4-5 Grand Canal Square, office strip-out. Image credit: Séamus Guidera

The main reason to retain what we have, is not accreditation led – it is common sense. We have an abundance of flexible buildings in Dublin, and few have been designed to be flexible. The houses of Merrion Square were not designed to cater for tenements, nor offices, but they have operated as both throughout theire lifetime. 1970s speculatively built offices were not designed to be converted into apartments, but they are well suited to it. We don’t know what flexibility we are designing into the office buildings of the last decade, but it is our job as architects to make it work, and to lead the conversation in designing the headquarters of the future.

25/3/2024
Present Tense

In post-pandemic Dublin, discussion regarding commercial property has centred on vacancy, demand, alternate use, and financing. In this article, Séamus Guidera considers the lesser discussed architectural opportunities of commercial offices downsizing and offers a broader rethink of what purposes a corporate HQ serves.

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TEST SITE

Ailbhe Cunningham
Present Tense
Ailbhe Cunningham
Ciarán Brady

Throughout Europe, contemporary best practice approaches to urban development strive to balance complex and urgent social demands with heightened requirements for climate mitigation and ecological repair. Initiatives such as the European Urban Initiative exist to lead in the definition, funding, and guidance of such practices [1]. Although evidenced in emerging policies and strategies at both EU and national levels, processes of urban development largely preclude the meaningful participation of urban inhabitants and lead to arduous disputes during regeneration projects. While socially engaged architectural practice is evident in Ireland [2], formal structures for community participation in built environment regeneration projects remain inadequate [3].

TEST SITE is a socially engaged architecture project responding to a derelict site earmarked for urban regeneration on Kyrl’s Quay, Cork city centre [4]. Located on the central island of Cork city centre, the Kyrl’s Quay site is home to a wealth of natural and industrial heritage, neither of which are protected under current development standards. Combining art, architecture, and ecology, the TEST SITE project acts as a temporary agora to encourage public collaboration with the city, in particular this vacant site. Co-created with artist Aoife Desmond, the project encompasses a practice that is person-centred and co-designed. The project is dedicated to the examination, and promotion, of diverse and sustained social engagement within the built environment. It functions as a curated public meeting space facilitating discussions, workshops, and social activities that bring people together centred around themes such as heritage, identity, and the concept of belonging to a specific space. TEST SITE recognises the value of situated knowledge in the delivery of equitable urban development; the value of both expert-by-experience and expert-by-specialism knowledge.

Emergent Ecology Herbal Tincture Making Workshop with Jo Goodyear. Image credit: TEST SITE

Expert-by-specialism knowledge is primarily leveraged in making decisions concerning long-term urban development strategies in the built environment. Decisions are predominantly informed by quantitative data sets such as that gathered by sensors and monitors. Expert-by-experience knowledge, also referred to as lay or community knowledge [5], can exhibit heterogeneity when acquired through collective explorations such as living labs. Within urban neighbourhoods, living labs are projects that occur amid communities, incorporating collaborative and participatory processes. These processes involve a spectrum of diverse and underrepresented spatial experiences, providing essential insights for achieving urban development that is both equitable and resilient.

In her novel Braiding Sweetgrass, Robin Wall Kimmerer, a Potawatomi botanist, describes the shifting responses and actions of students to scientific instruments during academic botanical field trips – how they recurrently shy away from their own senses and become heavily reliant on the readings of scientific instruments [6]. Through a series of grounding and landing activities, Kimmerer guides students to return focus to understanding and trusting their lived sense of place and not just the measurements and readings of the scientific equipment employed.

The intention behind activities undertaken at TEST SITE could be considered as an urban equivalent to Kimmerer’s field trip grounding activities, moving from a reliance on policy and quantitative data alone towards knowledge building that includes engagement with complex and varied hands-on comprehension of the urban built environment. The project works from the position that the human experience of urban inhabitants is a valid and crucial source of data in need of robust and formal consideration in relation to the long-term strategies for sustainable and equitable urban development.

Ecology Mapping Participatory Knowledge Mapping Workshop with Niamh Ní Dhuill. Image credit: TEST SITE

Lived experiences are fleeting and ephemeral. In order to be drawn upon in a formal capacity, it is crucial to capture and translate the lived experience of the protagonist of the built environment into spatial knowledge [7]. TEST SITE is undertaken from the informed position that a socially engaged practice of architecture can capture ephemeral and complex socio-spatial qualities of the built environment, as experienced by urban dwellers. With this comes the need to develop processes that capture the situated learnings that emerge through hands-on experience of a place.

One such means is to co-produce socio-spatial representations [8]. Tangible and lasting lessons emerge from temporary spatial activations once a structured process of reflection and representation is instigated to complement ongoing activations.

Through TEST SITE we continue to test methods that encompass the contributions of wide and varied voices; be they regular contributors, collaborators or once-off visitors from extended civil society. Ultimately intending to expand the complex web of knowledge that can shape long term strategies and approaches to sustainably developing our local built environment.

Returning to and concluding with the writings of Robin Wall Kimmerer, she describes the importance that the Potawatomi elders place on ceremonies as a means of “remembering to remember” [9]. Perhaps temporary activations of vacant, derelict, and public land can act as a form of ceremony and learning in the built environment; a means of remembering to remember and value the lived experiences of a city's residents when formulating plans and strategies for its future.

26/2/2024
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TEST SITE is an initiative blending art, architecture, and ecology to foster public engagement in urban regeneration in Cork city. Highlighting the gap between policy and participatory practice, it showcases how co-designed projects can integrate community knowledge into sustainable urban development, offering a model for inclusive planning in shaping the cities of the future.

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Fragmented territories: the spatial infrastructures of occupation

Shelly Rourke
Present Tense
Shelly Rourke
Ciarán Brady

Prior to entering the West Bank, one cannot ignore the large red warning signs indicating that entrance by Israelis is dangerous and forbidden. Passing through the checkpoints, barrels of machine guns are pointed directly at passing buses, ready to fire at any unexpected occurrence. Multiple soldiers in their 20s hover around the gated barriers and concrete pods, scrutinising the documentation of the people passing through.  

Growing up singing Christmas carols, I became familiar with Bethlehem, only to realise that it is not just a mystical place existing solely in religious stories but a real city. The people living here are subject to a dystopian reality, living under brutal occupation. They are observed by snipers, hindered by military checkpoints restricting their movement, and surrounded by the constant sounds of gunshots, keeping them in a perpetual state of fear. Facial recognition cameras subject them to discrimination, while AI-controlled machine guns ensure pinpoint accuracy if fired upon [1].

In August 2023, I arrived in Bethlehem, West Bank, to participate in an international camp at the Lagee Centre in Aida Refugee Camp. Aida is surrounded by a nine-metre-tall wall made of precast panels that encircle and spatially confine the community. Under the vigilant gaze of the Israeli military, watchtowers punctuate at irregular intervals along the wall of occupation and control, overseeing the 6,000 refugees, displaced since the Al Nabka (the catastrophe) of 1948. Ask any child in Aida about their origin, and they will instantly name their grandparents' townlands, showing keys that no longer unlock any door. Following the initial tents of the 1950s, their grandparents were given a 7m² plot of land on which they built their home. As families expanded, each generation added a new floor. Reinforced steel bars pierce the rooftops, inviting the next generation to build upon them, resulting in a densely populated 0.5km².

Streets in Aida Refugee Camp (Image credit: Shelly Rourke)

Even in the Palestinians' places of refuge, the Israeli military dictates harsh living conditions. Aida is often used for military training exercises, and under the cover of darkness, they forcibly enter Palestinian homes, arresting and abducting blindfolded youths for interrogation [2]. From a distance, tear gas canisters are fired into the camp, and remnants litter the streets, playgrounds, and soccer pitches of Aida. The lingering toxic fumes persist for days, ruining clothes and exacerbating respiratory illnesses. Artists repurpose discarded metal into jewellery for tourists, who can narrate stories of visiting the most tear-gassed place in the world. Here, Palestinians are subject to the overpowering presence of the Israeli military occupation which oversees every aspect of their daily life.

What remains of the West Bank is further gobbled up and reshaped by illegal Israeli settlements, continuously expanding and threatening existing Palestinian communities in contravention of the Oslo Accords. These settlements are connected by segregationist roads inaccessible to Palestinians, further isolating them and marking them as ‘other’ in the mindset of occupation. Thousand-year-old olive trees are uprooted and placed near Israeli settlements to create an appearance of historical continuity. Contrary to the spacious Israeli settlements, with hundreds of flags fluttering, Palestinian housing is densely packed, with water towers on roofs – another signifier of a population controlled by others. Water infrastructure is regulated by Israeli forces, unpredictable, and necessitating storage for a consistent supply.  

West Bank Checkpoint (Image credit: Shelly Rourke)

Hundreds of checkpoints permeate the West Bank, and sudden roadblocks imposed by the Israeli military paralyze movement at will. This military occupation distorts distances, compelling people to wait at road gates, borders, and checkpoints for permissions to be granted. Soldiers interrogate Palestinians about their origins while they themselves stand on confiscated, occupied land. Complex routes circumnavigate Jewish settlements and Jerusalem’s suburbs, elongating journeys unnecessarily and confusing the region's geography. Palestinians cannot guarantee arrival times, as these are subject to the soldiers' mood at checkpoints, and disturbances in northern cities such as Jenin can affect movement in the south. Al-Aqsa Mosque, Islam's third most-holy site, is a mere 7km from Aida Refugee Camp, yet accessing it without an unattainable permit brands one a criminal. Along routes between various West Bank cities, Israeli settlers operate diggers and bulldozers, disfiguring the landscape Palestinians once carefully tended to.

Restrictive planning laws deny Palestinians the right to construct on their own land, gradually forcing them out of their communities. This became evident in Beit Eskaria, a village between Bethlehem and Hebron, where settlements strategically perch on hilltops, ominously overseeing Beit Eskaria below. In Israel, Arabic is no longer the official language [3] and navigating the legal system without Hebrew exacerbates the complexities of the exclusionary planning laws. In Beit Eskaria, Israel demolished thirty-five new homes and a mosque with no warning, making it difficult for the community to sustain itself for future generations. All that remains are the remnants of the former building projects, serving as a gentle reminder that unlawful construction is a futile endeavour.

Cities like Jenin and Nablus defy military rule, and this results in every wall being adorned with countless images of male martyrs. In Jenin, roads have been purposefully destroyed by the Israeli Military, disrupting infrastructure, extending the time taken to undertake everyday activities whilst strategically impeding ambulances from reaching injured victims. A new cemetery, established on a recently flattened vast wasteland, has soil that is speckled with coloured rubbish and glass. Family members and friends sit beside fresh mounds, grieving for the young lives lost. Parents spoke of receiving the exam results of their murdered teenagers on the day of their funeral.

Jenin Graveyard (Image credit: Shelly Rourke)

Returning to Israel (referred to by Palestinians as ’48), from Bethlehem, necessitates passing through ‘Checkpoint 300’. Depending on the time of day, the line may be dense with Palestinians holding permits to work in Israel. Once again, the Israeli military subjects them to waiting in spaces resembling farmyard milking stalls, tightly packed, scrutinizing their identity cards at a sluggish pace, and degrading them at every possible opportunity. Before the turnstiles, signs in Arabic are mounted on the walls, emphasising that the checkpoint was built for them, and it was their responsibility to maintain its cleanliness. Emerging on the other side, an advertisement announces that the metropolitan city of Tel Aviv is just a short one-hour distance away. Passing through, I mounted the bus to Jerusalem only to be hit with a wave of emotion. I felt as though what I stepped out of is a life under brutal occupation and it so far removed from the free reality we live in. For the people of Aida, it is the only reality that perhaps they will only ever know. I had the choice to leave.

At the airports departure gates, the questioning fluctuated between the serious and the absurd, asking had you visited Bethlehem, Jenin, Nablus, and Hebron in the West Bank, knowing that a slip of the tongue would deny a chance of ever returning. The Israelis are the masters of the house and for now they determine everything.

22/1/2024
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Navigating through the West Bank, the omnipresence of military checkpoints and the daily challenges faced by Palestinians under occupation are laid bare. This article offers an intimate exploration of the physical and psychological landscapes shaped by decades of conflict, inviting readers to witness a world where freedom of movement is a luxury and the echoes of history resonate in every street.

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