Concrete Habitat Units

A perceptual shift in environmental values is currently reshaping the field of landscape architecture. Historically, landscapes have been perceived as commodities: locations of relaxation, pleasure, activity, and above all else, expressions of man's control over natural systems. As a collective society, landscape architects in today's era are reconsidering the relationship we have with the land. We are still within the transitional process of adjusting our values away from pastoral aesthetics towards a recognition that we must act as stewards to the land's natural systems. Beyond designing for human use, we are addressing other factors such as hydrology, ecologies, habitat, and remediation in attempts to create functional improvements to our environments. These ideas have come to fall under the banner of 'sustainability' which as a whole can be seen as a bold step forward toward radically reshaping our values. However, progressive as they are, the tenets of sustainability are but the early steps to what may be a future of fully integrated human and natural systems. Our cities and environments are still a long way from completely realizing even the most basic sustainable goals, yet it is necessary to consider if our cultural values are prepared to accept the quality of 'wildness' which will inevitably develop as natural systems begin to play a stronger role in shaping our urban environments.

Concrete Habitat Units (CHUs) explores the potential and possibilities of a wildly poised urban infrastructure through the adaptation of individual construction units to serve dual functions as structural components and as potential habitat for native species of plants and animals. We have found concrete masonry units (CMUs) to be desirable for modification because they are neutral and primitive in form, modular in configuration, and are pervasive building components. The derived alterations explore the tectonic conditions of habitat and the performative ability to adapt the infrastructure of the city. The project is simultaneously local in action and global in example by addressing site-specific and species-specific conditions in a manner which can easily be reconsidered for application in other ecologies and urban conditions.

Opportunism is an active and necessary ecological principle to be recognized in addressing the naïve notion of 'balance in nature' and critical to understanding 'wildness'. Diversity is one of the results of opportunistic competition and success, therefore by providing a platform for competition to take place, biodiversity is supported. The individual CHU configurations question the gaps, niches, perches, and spatial conditions necessary to encourage particular species to opportunistically occupy its space. While the ultimate habitation of a particular species into the unit for which it was designed can never be certain, by accommodating for particular spatial needs, the likelihood of the desired species to colonize the space may be improved. From these considerations, the CHUs seek to leverage the predominantly opportunistic species which occupy contemporary cities as a component of an ecological framework - an optimistic and active system of biological and ecological management through the design of structural elements.

This project was carried out in multiple phases which began with research on the phenology, life cycle and structural habitat needs of various selected species. The research was presented as a series of infographic posters as well as laser cut skeletal/volumetric models intended to tangibly relate to the species' dimensional and proportional characteristics. Based on these spatial and dimensional requirements, speculative plaster castings were created to investigate possible forms suitable to specific habitat needs. These plaster study models then informed the spatial modifications which were applied to the CHU designs. The specific habitat accommodations for the various CHUs are as follows:

(CSU) - Cliff Swallow Unit: Provides nesting opportunities in its cavity, overhang, and ledge. Collects water and soil to create the mud necessary for cliff swallow nest construction when the unit is inverted. Surface indentations serve as opportunities for insects and support species.

(BBU) - Brown Bat Units: Series of three units when combined allow for entrance into a large cavity, space for roosting, and for hibernation. Bats are able to fly in and out in groups as preferred and surface irregularities allow the bats to roost once inside. Half-Inch slots optimize darkness and ventilation and a surface which collects water attracts insects on which the bats may feed.

(MMU) - Mushroom Mycelium Unit: Designed to be filled with soil and connect en masse as a network on all three axes. This permits fungal mycelium to form a contiguous network which in turn can support, in succession, a multitude of other living organisms.

(PGU) - Poppy / Goldfinch Unit: Accommodates nesting for small birds such as the goldfinch and is contoured to collect soil from which poppies may grow. The ends of the unit contain additional gaps and niches, yet are mirrored to permit interlocking.

(GOU) - Great Horned Owl Units: A set of three units combined to allow an appropriately sized nesting cavity for the owl. The exterior is manipulated to allow perching in front of and above the units.

(FMU) - Freshwater Mussel Unit: Provides burrowing space and embedment surfaces in underwater structures. The units are built with the notion that they will degrade over time, however the occupational space will remain due to the accumulation of soil and sediments the units will collect from tidal movements.

(BMU) - Buckwheat / Mouse Unit: Supports buckwheat populations indirectly by providing appropriately sized spaces for bee colonies which in turn would pollinate the buckwheat. Walls may also be built to retain hillsides on which buckwheat typically grows. Additionally a gap on the underside of the unit permits mouse access along with a suitable nesting cavity.