Project description

This thesis reimagines Derry as a resilient “duo-city,” defined by the tension between the historic Walled City and a newly proposed, discrete settlement designed to accommodate and care for its inhabitants. In the wake of civic erosion, spatial segregation, and persistent mental health struggles—etched into the River Foyle’s high suicide rates—Derry’s traumatic legacy remains deeply embedded in its urban fabric. In response, this project explores how built edges can be softened to foster a more empathetic co-existence with nature—distilling its ecological atmosphere to create spaces for healing, contemplation, relaxation, and interaction. 

Three key sites are examined and addressed through architectural interventions operating across multiple timescales. Each reflects a rupture in Derry’s socio-spatial landscape—and a latent potential for repair. 

At Pennyburn, a compact city model is introduced within a post-industrial void, countering monocultural housing estates and reintegrating natural spaces to foster denser, more connected communities. 

At Fort George Waterside, Daire Haven—the heart of this vision—emerges as a civic pier that frames resilience through architectural, ecological, and cultural lenses. Drawing from the density of the Walled City, it proposes an ‘intelligent ruin’ typology—adaptive, inhabitable, and enduring.  

At the Diamond War Memorial, a micro-urban intervention revives this neglected civic core, tracing it back to its natural and social origins to restore its identity as an inclusive urban anchor. 

Architecture becomes a mediator between damage and care, interweaving mental health, ecology, and public life into a more empathetic and resilient future for Derry. 

view from distance render
Approaching Daire Haven through Ecological Boardwalk
Contextual Orientation

Derry is a city shaped by its edges—geographic, social, and psychological. Its fractured landscape reveals the lingering effects of industrial decline, spatial segregation, and infrastructural rigidity.
This thesis positions these edge conditions not as limits, but as opportunities: thresholds where ecological restoration and civic life might be re-imagined together. At Pennyburn, Fort George, and the Walled City, the project explores how architecture can engage these tensions—releasing ecology back into mono-functional housing estates through a strategy of field densification, and inviting new forms of communal and environmental inhabitation. These sites frame a broader vision for Derry’s transformation, where the edge becomes a site of overlap, renewal, and resilience.

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Thesis mapping | remediation programmes on three focused edge conditions
The Airc - Daire Haven

Daire Haven offers a sanctuary for mental support and social connection, while adapting to future environmental challenges. Elevated to respond to flooding, the structure anticipates a future as a resilient “port.” Rooted in a gentle architectural ethos, it coexists with the ecology, integrating the natural atmosphere into its design and enhancing the surrounding environment. As a new infrastructural typology, Daire Haven acts as an “intelligent ruin, a reactivatable framework that supports evolving civic programs, sensory experiences, and communal well-being.

daire haven head image
daire haven elevations
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model maquette
1:500 massing model iterations overlay with conceptual sketch
consultation chamber 1
a room as the mediator of experiences
consultation chamber render
consultation chamber
edge of ruin in advance sketch
design development - permeability of the Edge
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proposed Ruin-in-Advance riverside masterplan
Atmospheric Condenser

An initial exploration of ‘found edges’ in Derry, where the ‘Edge Structure’ acts as an atmospheric condenser—capturing, amplifying, and distorting the edge effect to reveal its latent forces. During the design thinking of these structures, the process indirectly informed the later themes explored in the thesis, particularly the role of architecture in mediating between ecological thresholds and social repair.

three micro scale interventions redefining the experience in Bay Roads Natural Reserve expand
The Duo-CIty

This chapter reimagines urban development by blending the densification of city edges with the restoration of natural landscapes, reclaiming neglected thresholds to bridge the divide between built and natural environments. The design introduces a compact settlement model, offset from the Walled City, that integrates green spaces to foster a denser, more connected community. Named Duo City, it acknowledges the Walled City’s historical significance, yet challenges its role as a living space. Duo City coexists with the Walled City, advocating for a new settlement model that truly nurtures the people of Derry.

field strategy sketch
field strategies overlay
field proposition | 1:10000 compacted Daire masterplan overlaying 1:500 Field model
The Diamond Recast

The Diamond Recast turns from the river’s edge to Derry’s vertical core. While The Field and The Airc reclaim the industrial island and River Foyle, this chapter engages the layered ground of The Diamond—once natural terrain, later a site of prisons and executions, now a place of civic stillness. The project reconnects ground, oak tree, and sky, transforming the buried past into space for gathering. Through an “intelligent ruin” framework, it proposes adaptable micro-interventions, restoring The Diamond as a resilient and evolving civic anchor.

the diamond reimagination
the diamond render
encountering the Diamond, a rewilded civic plaza, from Shipquay Street
From Fortress to Framework: Reclaiming the Walled City

*A collaborative field strategy with Vivi Hsia


The Walled City of Daire, once a fortified island shaped by geography and civic life, has become a corridor of transit and tourism. Its original natural boundaries and central civic spaces have eroded—most notably, the town hall replaced by the residual Diamond plaza. Once protective, the wall now frames a disconnected urban core, where vehicles dominate and vacancy persists.

This project proposes a renewed civic framework that reclaims the Walled City as a dynamic, porous landscape. By unlocking spatial blockages and re-stitching fragmented edges, it reimagines the city as a sequence of civic thresholds that invite movement, interaction, and occupation. Vacant plots become opportunities; barriers are transformed into connectors. At its centre, the Diamond is returned to a raw, rewilded commons—resisting fixed use and encouraging flexible public life.

Rather than preserving containment, the city is reactivated as an inclusive, living terrain of heritage, ecology, and everyday inhabitation.

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Edge Structure Variants

Edge Structure Variants proposes a vision of urban surgery through a series of micro-interventions—small but intentional insertions that mend and activate the city’s fractured fabric. Building on the lens of Edge Structures (Chapter I), these interventions embed essential urban and civic programs within sensorial pavilions, reimagined as gateways, corners, and platforms. As urban civic nodes, they facilitate encounter, rest, and orientation, offering moments of pause and connection that help restore civic life across the evolving cityscape.

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Skills & Experience
  • Skills: AutoCAD, Rhino 3D, Adobe Creative Suite, Enscape
  • Part I Architectural Assistant: Chan + Eayrs
  • Furniture Design Intern: Senderson Co.

Ching-En / Eric Lin

Towards a Resilient Duo-City: Enhancing Ecological Atmosphere, Social Relations, and Wellbeing
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Architecture - MArch

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