Timber Ridge is a Continuing Care Retirement Community offering first-rate services that can be customized for individual preferences and tailored as needs change over time.

Situated on 9.5 acres at the base of Cougar Mountain, it is the first high-rise project in the City of Issaquah. A seven-story tower sits above a three-level parking garage for a total 473,200 SF within a compact 75,000 SF footprint.

In addition to 184 independent living units and 36 skilled nursing units, it features a fitness center, service/administration areas, presentation/sales office, and community clubhouse with fireside lounge, library, cocktail lounge, dining room, café, meeting rooms and additional amenities and service areas.

The project scope included operable walls and large expanses of glass opening to side terraces, and extensive sitework including gardens and trails. It is the first CCRC in the United States to achieve LEED Silver certification, with key features focused on energy efficiency, water conservation, and sustainable site design.


Life Care Services


Rice Fergus Miller




LEED Silver — First CCRC in U.S. to Achieve

Total SF



9.5 Acres

Project Stats


Independent Living Units


Skilled Nursing Units



Approach Spotlight

Innovative Backfill Solution

A concrete batch plant strike in the summer pushed most of the earthwork for Timber Ridge into a record-breaking cold, wet winter. It was imperative that backfilling of retaining walls continue to avoid project delays, but the specific make-up of the native on-site soil made it particularly sensitive to water, rendering it useless for backfill. The alternative was to remove existing stockpiled soils from the site and import better soils at a significant cost premium. GLY worked with the earthwork subcontractor and geotechnical engineer to amend existing on-site soils with a combination of recycled crushed concrete and kiln dust. The resulting sustainable approach ultimately saved the Owner hundreds of thousands of dollars over the more conventional approach.