LIV[IN]G CORE: A Pinecone's Logic Applied to Denver Infill Housing

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Q: What is "LIV[IN]G CORE: A Pinecone's Logic Applied to Denver Infill Housing" about?

This article covers topics related to Living Building, Co-Living, Integrated Living, Residential Building, Housing. Biomimicry drives a compact multi-generational home where bedrooms nest at the core and shared spaces spiral outward like scales.

What if a pinecone could teach us how to house a family? That is the premise behind LIV[IN]G CORE, a compact urban dwelling that borrows its organizational logic from the way a conifer protects its seeds. Essential private functions compress into a vertical spine at the center, while communal living zones spiral outward, pulling daylight and air through vertical voids. The result is a narrow infill home that feels far more generous than its footprint suggests.

Designed by Chas Marquez and Eileen Gehlhausen, the project received an Honorable Mention in the Nano Nest 2020 competition. Sited in Denver's Lower Downtown (LoDo) neighborhood, it responds to a specific urban condition: a sliver of land wedged between existing structures, where a multi-generational family needs privacy, flexibility, and connection to the city's outdoor culture.

Slipping Into the Streetwall

Street view of mixed brick and white tile facades with pedestrians walking on the sidewalk

Historic brick building with white-trimmed windows next to a white tile facade with parked cars

LoDo's streetscape is a patchwork of aged brick warehouses and newer facades. The street views show how the project slides into this grain, its white tile cladding and operable aerated concrete panels holding a quiet dialogue with the masonry on either side. Rather than mimicking its neighbors, the home signals its presence through material contrast while maintaining a respectful scale. Pedestrians pass without disruption; parked cars line the curb as they always have. The infill strategy is surgical, occupying leftover urban space without bulldozing context.

The structural approach is equally pragmatic. Stair treads wrap tightly around the central spine and gain lateral support from the exterior wall of the adjacent building, a move that frees precious interior square footage. In a site this narrow, every centimeter reclaimed from circulation counts.

Core, Skin, and the Spiral Between

Section model showing stacked floor plates with vertical green wall and black balconies

The section model makes the biomimicry legible. At the center, a dense vertical stack of bedrooms and bathrooms forms the core, compressing the most private functions into tight, efficient modules. Wrapping this spine is a vertical green wall that doubles as thermal buffer and air purifier. Black balconies punctuate the facade, hinting at the skin layer: a dynamic envelope of operable aerated concrete panels inspired by how pinecone scales expand and contract in response to humidity, regulating airflow, light, and visual privacy.

Between core and skin, the circulation zone breathes. Shared living spaces spiral around the central mass, each floor plate offset to allow lightwells to drive daylight deep into the section. The stacking logic is clear: garage at grade, private quarters above, communal kitchen higher still, and a rooftop patio capping the sequence. It is a vertical neighborhood for one family, organized by the gradient from solitude to sociability.

Where Brick Meets Perforated Screen

Communal kitchen with exposed brick walls, white perforated screen and two figures at a blonde wood table

The interior rendering of the communal kitchen reveals a space defined by material honesty. Exposed brick walls anchor the room to its LoDo context, while a white perforated screen filters light from the core beyond, maintaining visual connection without sacrificing privacy. A blonde wood table seats the household, and the proportions feel deliberate: the room is compact yet unfussy, designed for daily use rather than photogenic minimalism.

This is where Denver's outdoor culture infiltrates the plan. Operable facades allow the kitchen to open outward, and plant walls visible in the section tie interior air quality to living greenery. A greywater system runs beneath the surfaces, reclaiming water for the rooftop hot tub terrace that doubles as a gathering zone. The environmental systems are embedded, not exhibited, letting the architecture feel like a home rather than a demonstration project.

Why This Project Matters

LIV[IN]G CORE is convincing because it treats biomimicry as a spatial strategy rather than a formal gimmick. The pinecone analogy does not produce a building that looks like a pinecone; it produces one that behaves like one, organizing protection, growth, and environmental responsiveness into a legible hierarchy. The core/skin/circulation framework gives the designers a clear armature for decision-making, from the placement of bedrooms to the behavior of facade panels.

For cities facing the collision of population growth, shrinking buildable land, and the demand for affordable multi-generational housing, Marquez and Gehlhausen offer a template. Dense urban sites do not have to produce cramped living. With the right biological logic and a willingness to borrow structure from adjacent buildings, even a sliver lot in LoDo can house a family with daylight, fresh air, and a hot tub on the roof.