Portland-based firm William Kaven Architecture has put forward a scheme to redevelop the soon-to-be demolished US postal building in the Oregon city, including a pair of towers built alongside a high-speed rail system.
William Kaven Architecture has proposed a complete overhaul of Portland's US Postal Office headquarters site in the Pearl District, which is planned to be razed.
The masterplan includes approximately five million square feet (464,515 square metres) of development for the city, with various mixed-use buildings and two linked skyscrapers – one of which would exceed 970 feet (296 metres).
If built, these towers would become Portland's tallest, and among the tallest on the west coast. San Francisco's Salesforce Tower, which topped out in April, currently holds the title at 1,070 feet (326 metres).
William Kaven Architecture hopes the complex will be considered as part of the city's bid for Amazon's second headquarters, which many urban areas across the US are hotly vying for.
"What we have conceived is a dynamic, modern neighbourhood centralised around an extension of the park blocks," said Daniel Kaven, who founded the local firm with brother Trevor William Lewis in 2004.
"The towers are large enough to serve as a headquarters for a Fortune 100 company, such as Amazon, and would anchor the entire district both architecturally and financially."
A glazed walkway, situated around 680 feet (207 metres) in the air would connect the two structures around halfway up, and house a botanical garden with expansive views of the city.
"The buildings themselves would be high performance and energy efficient, with on-site power generation from photovoltaics integrated within the glazing," said Lewis.
This October, Kaven penned an op-ed about the need to redevelop the postal site due to its prime location in the growing city.
In the DJC Oregon article, he critiques much of the city's developments, and calls for the creation of more public transit options and urban infrastructure.
The site is close to Union Station rail hub, Greyhound bus station, and has good connections to Portland's local streetcar and bus system.
The design of the complex aims to integrate the new USPS building with an upgraded transportation network, including a proposal for a high-speed rail system alongside other underground transit innovations.
"This is our opportunity to lead the effort to build a bullet train network that links Portland to Los Angeles, San Francisco, Seattle and Vancouver from the heart of an already-existing downtown transportation hub," said Kaven.
The USPS Portland complex by William Kaven is currently in the conceptual design phase, and led by a subsidiary studio Kaven + Co.
The company intends to submit a formal proposal to the City of Portland's development arm Prosper Portland in early 2018, after the firm began a formal request for quotation (RFQ) process just last week.