2023 AIA Housing Awards: Alta Vista Residence by Alterstudio

Alta Vista Residence

Architect: Alterstudio Architecture

Location: Austin, Texas

Category:  Residential – single-family detached

Project site: Previously developed 

Building program type: Residential – single-family detached

Tucked nonchalantly into Austin’s Travis Heights neighborhood, this single-family home offers a recently relocated family the opportunity to live just a few blocks from some of the city’s most popular restaurants and music venues. In the pre-war, tree-lined neighborhood, where rising property values have encouraged a much higher density for its 7,000-square-foot lots, the Alta Vista Residence is a counterproposal for the immodesties of such urban transformation.

“The way the home fits among and takes advantage of the relationships to the heritage oaks on-site makes being at home something of a continual rediscovery and delight.”  – Jury comment

An efficient plan for a compact volume formed the foundation of the home’s design, which is oriented to maximize energy efficiency and to prompt stronger relationships with its natural surroundings. The team relied on affordable strategies for energy savings, which include an airtight envelope and engineered variable refrigerant flow air conditioning systems with dedicated dehumidification and ventilation. Its concrete walls and the steel paneling that clad the exterior are dexterous and tough enough to age gracefully and resist weathering. 

The home is perched between a creek escarpment and several towering live oak trees. One of the trees is foregrounded to intrigue and delight visitors who enter beneath its limbs and across a modest bridge. Once inside, the carefully choreographed series of spaces signal the team’s attention to detail. Throughout, abstraction is harnessed to focus attention on the subtlety of light and materials, and board-formed concrete and rift-sawn white oak anchor the interior against the constant pull of the outdoors. 

The primary interior spaces also open to the outdoors and two additional live oak canopies. Large sliding panels disappear into an adjacent wall to open up the main room, which sits 10 feet off the ground, to an engaging private landscape. A separate 600-square-foot accessory dwelling unit and another 1,300 square feet below capitalize on Austin’s floor area ratio exemptions. Nestled into the hillside, these units open directly onto the landscape. A room on the home’s third floor boasts views beyond the private world cultivated by the design team. 

“This project represents a studied and clever use of zoning to maximize the size of the project and provide opportunities for multiple living arrangements,” – Jury comment

Since the project’s completion, it has continually exceeded the clients’ expectations, supporting their lifestyle and offering a steady source of inspiration. They have reported a newfound love of being at home, a feeling that ameliorated more than a year of COVID-19 pandemic-induced social distancing. 



Project attributes

Year of substantial project completion: 2020

Gross conditioned floor area: 3836 sq. ft.

Project team

Associate Architect: Alterstudio Architecture 

Engineer – Structural: MJ Structures

Engineer – Geotechnical: Capital Geotechnical Services 

General Contractor: Abode Modern Homes 

Landscape Architect: Aleman Design Build

Photography: Casey Dunn

Jury

Catherine Baker, FAIA, Chair, Nowhere Collaborative, Chicago

John DeForest, AIA, DeForest Architects, Seattle

Brian Lane, FAIA, Koning Eizenberg, Santa Monica, Calif.

Amit Price Patel, AIA, DIALOG, Vancouver, British Columbia

Michael D. Robinson, AIA, Robi4 Architecture & Planning, San Diego


AIA Framework for Design Excellence

The AIA Framework for Design Excellence represents the defining principles of good design in the 21st century. Comprised of 10 principles and accompanied by searching questions, the Framework seeks to inform progress toward a zero-carbon, equitable, resilient, and healthy built environment. 

Framework for Design Excellence Metrics / Alta Vista Residence

Design for Integration

Was there a design charrette? Yes

Design for Ecosystems

Site area that supported vegetation (landscape or green roof) pre-development: 59% 

Site area that supports vegetation post-development: 45%

Site area covered by native plants supporting native or migratory species and pollinators: 45%

Strategies used to promote Design for Ecosystems:  Biodiversity, Dark skies, Bird safety, Soil conservation, Habitat conservation, flora/fauna

Design for Water

Is potable water used for irrigation?   Yes

Is potable water used for cooling? No 

Is grey/blackwater reused on-site? No 

Is rainwater collected on-site? No 

Stormwater managed on-site: 100 %

Design for Energy

2030 Commitment baseline EUI: 38 kBtu/sf/yr

Predicted net EUI including on-site renewables: 22.5 kBtu/sf/yr

Reduction from the benchmark: 41%

Is the project all-electric? Yes

Design for Well-being

Level of air filters installed: MERV 15-16 

Was a “chemicals of concern” list used to inform material selection? Yes 

Do greater than 90% of occupied spaces have a direct view to the outdoors? Yes 

Design for Resources 

Were embodied carbon emissions estimated for this project? Yes

Design for Change

Estimated service life: 100 years

Floor area, if any, representing adapting existing buildings: 0% 

Ability to survive without utility power: passive survivability

Design for Discovery

Has a post-occupancy evaluation been conducted? No, but a POE will be conducted 

Building performance transparency steps taken: (Note: if only one option is selected, do not use bullets.)

  • Present the design, outcomes, and/or lessons learned to the office
  • Present the design, outcomes, and/or lessons learned to the profession
  • Present the design, outcomes, and/or lessons learned to the public
  • Publish post-occupancy data from the project
  • Publish lessons learned from design, construction, and/or occupancy

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