Sustainability Statistics


  • Originally a six-acre concrete parking lot, the site is transformed into a mixed-use development hosting 1,250 residential units, a hotel, shops, and restaurants.
  • Located next to the intersection of Interstate 110 and the sports and entertainment center of Downtown LA, the site and surroundings are predominately concrete.
  • The roof amenities deck offers 1.4 acres of useable outdoor space. Highly transformative, this turns a barren site into an active outdoor playground nine stories above ground.  


  • 50 trees were planted on the ground floor, and 150 were planted on the roof deck.
  • Native and low water usage planting was used on-site.


  • Green roofs were installed to reduce the heat island effect, absorb stormwater, reduce the amount of suspended solids in stormwater and provide enjoyment to the users.
  • The design reduces outdoor water with low-water plant selections.
  • Trees have the potential for intercepting 100,000 gallons of water which are equivalent to the water usage for 1,000 American residents for one day.*


  • The planting strategy reduces temperatures in urban areas.
  • During construction, pollutants were controlled and retained.
  • The trees sequester 24,000 pounds of carbon annually, which offset an average car driving 32,648 miles.**


  • There was an increase in the property value due to project installation.
  • Maintenance savings were considered in the design.


  • A lap pool, spa area, event pavilion, activity lawn, dog park, and children’s play area offer residents and guests a space for interaction, fun, health, and wellness.
  • 54 loungers, 20 café dining tables, 10 love seats, five large group dining tables, and 40 lounge chairs can seat more than 248 people on the roof deck. The lawn areas provide added lounging space.
  • The project features the largest roof deck in LA.
  • The project supports alternative modes of transportation with bike parking and electric car charging stations. It is also located in proximity to subway and bus lanes.
  • The project provides optimal site accessibility, safety, and wayfinding.

* The tree average for water interception is 500 gallons. American’s use an average of 100 gallons of water per day (EPA’s water trivia facts)

**120 pounds of CO2 per tree annually (This number is based on an average from the National Tree Benefits Calculator) One car produces an average of 8,320 pounds of CO2 per year. Each vehicle drives an average of 11,318 miles per year. (The Code of Federal Regulations - 40 CFR 600.113)


Situated on the edge of downtown Los Angeles, blocks from the Staples Center, the Metropolis Residential Towers is a mixed-use complex consisting of 1,250 luxury residential units with two floors of high-end retail along the street. Located over the parking garage and between the two towers is a 60,000 SF amenity deck with dramatic views of downtown and views west to Hollywood Hills. This California Modern inspired amenity deck features a lap pool, spa area, event pavilion, activity lawns, dog park,  and children’s play area, all situated in a richly landscaped garden. Event terraces are located midway at each of the towers and feature outdoor kitchens, gathering areas, a small event lawn, and rich ornamental planting.

Los Angeles, CA
Team: Harley Ellis Devereaux, Breen Engineering, Saiful Bouquet, CD +M Lighting Design Group, Aquatic Design Group, HLB Lighting
Photos: Hunter Kerhart 
Rendering Credit: