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Onni Proposes District Energy System For 1120 Denny Project

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It's been a while since we've heard anything about Onni Group's double 400-foot tower project at the site of the former Seattle Times Building but we did get one new piece of information this week. Per documents prepared for a Wednesday design review meeting, Onni is considering a district energy system as part of the project. Working together with the 12 other projects proposed within a six-block radius, a district energy system could lower operating costs for all of them and allow buildings to share and reuse not only heat but also water. Integral Group, which specializes in "deep green engineering" is included in the documents as a provider of the system.

Updated numbers for the project say there will be 1,119,570 sf. of residential, common and amenity space within the two towers, 1,197 residential units, 27,584 sf. of commercial space along the ground level, and eight levels of below-ground parking with 1,618 spaces. Between the towers would be a podium with staggered heights and four extended decks that would include multiple pools, a solarium and lots of landscaping.

· 1120 Denny Way [Seattle]
· Onni Group looking at district energy system as part of huge SLU complex [DJC]
· Onni's Seattle Times Project Trades Preservation for Height [CS]