Adaptable Density proposes a model for urban neighbourhood intensification as an alternative to high-rise condominiums that can be rapidly constructed, is more liveable, has a lower carbon footprint, and is better integrated with existing neighborhoods. Through a gradual process, density can be increased at a variety of scales as is appropriate to each context, by constructing multi-unit buildings on lots that are currently dominated by single-family homes. Building blocks that are easily replicable are a key factor in boosting density and expanding housing supply.
Beginning with an existing community of single-family detached dwellings, one these dwellings is replaced with a building of up to 6 storeys that has the same footprint, but densifies the lot by providing up to 10 living units. Outdoor space is carved into the building’s massing through shared communal terraces and private balconies, and the program can support retail or amenity at grade level in addition to the units on upper floors. Three “building blocks” make up this typology: the living units block, the circulation block, and the outdoor space block. The living units are designed to prioritize liveability; every unit has windows on at least two sides for maximum daylight and natural ventilation.
A variety of unit sizes support a diverse range of occupants, with the units stacked in the block for efficiency of construction. This block can be modified in width, length and height to adapt to a variety of property sizes and contexts. Intended to serve up to four units per floor, the circulation block contains an elevator, along with a single exit stair, as an alternative approach to building codes with accompanying supplementary increases in fire safety measures. The outdoor space block acts as a link between the living units and circulation blocks, providing communal outdoor space and creating a “front door” entry condition to the units.
Each building block operates as an independent unit; they can be inserted into existing neighborhoods either individually or collectively to increase density. By combining these blocks in different configurations, buildings can adapt to various site sizes, locations (such as corner or mid-block lots), and heights to suit their context. The streamlined design of each block facilitates construction on almost any land parcel, providing accessible opportunities for small-scale developers. This approach allows for quicker time-to-market, opportunities for modular construction, and reduced costs by eliminating the need for underground parking, making them adaptable and replicable.
Emphasizing communal spaces enhances social cohesion and addresses issues of social isolation while accommodating different types of family units. A central courtyard, accessible from the street, is created by clustering units together. It helps to foster social cohesion and community, strengthening neighborly connections by providing a shared space where residents can interact. Sustainable practices ensure a lighter environmental footprint, contributing to long-term viability.
