Just west of the L.A. River in the Arts District, the glass exterior of a high-rise development from San Francisco-based Carmel Partners is just about complete at 520 S. Mateo Street.

Alloy, which spans a site bounded by the 4th Street Bridge, Santa Fe Avenue, and Mateo Street, will include a total of 475 live/work apartments, 127,000 square feet of office space, and approximately 18,000 square feet of street-level shops and restaurants. The complex will also feature parking for 650 vehicles.

Aerial view looking westWorks Progress Architecture

A leasing website advertises a mix of studio, one-, and two-bedroom dwellings, ranging from 475 to 2,070 square feet in size. Rents start at $3,180 per month for a studio, and range as high as $17,025 per month for a penthouse.

Works Progress Architecture and SCB headline the project's design team. The contemporary high-rise - the first tower in the Arts District - includes amenity decks above a podium structure and at its rooftop. At the rear of the site, an abandoned rail spur between Mateo and Santa Fe is being transformed into a pedestrian paseo lined by commercial uses.

Rooftop deckHunter Kerhart Architectural Photography

While the project may be the tallest in the Arts District for the time being, other towers are likely in the neighborhood's future. A larger high-rise complex designed by Bjarke Ingels Group is in the works near the Sixth Street Viaduct, and prolific developer Onni Group is planning two residential towers just south of 7th Street.

Carmel has developed many of the L.A. region's new towers over the past decade, including a 30-story high-rise at La Cienega and Jefferson Boulevards in West Adams and a 33-story building at 8th and Olive Streets in Downtown. Carmel has plans for yet another high-rise planned just south of Beverly Hills city limits on La Cienega Boulevard.

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