SCE has provided civil engineering services for a number of multi-family and multi-use facilities. We understand the unique needs and challenges inherent with residential projects which often include multiple points of entry and significant utility routing and metering. These projects typically require master planning, phasing and thorough analysis of existing conditions. Our experience and in-house resources allows us to efficiently develop site plans that meet both owner and agency requirements within common budgetary constraints.

SCE recognizes the common issues associated with multi-family residential developments such as ADA and public accessibility, security, utility services, service access, and owner/architect vision. Our experience allows us to meet program requirements within the project constraints.


SCE was the engineer of record for this multi-family development on Bainbridge Island. The project consisted of 107 apartment units, 18 townhomes, 7 live/work lofts, a one-acre park, and two new public cross-street and frontage ROW dedications.   

The Water Design for BLIS presented many challenges, studies and design aspects to resolve including upgrading and connecting an offsite High pressure water zone to the zone BLIS was constructed in. This involved 700 LF of 8” DI water main of which approximately 250LF were suspended underneath a large pedestrian bridge.

Onsite included a pressure reducing valve (PRV) valve and vault, approximately 1400 LF of 8” Di water main, meter connections for 25 individual residential meters and a 4” domestic water meter for the apartment complex.


The project was a 9 acre, 205 unit residential-development in Seattle‘s Skyway neighborhood. The project included; 11 buildings, below grade parking, club house, and pool. SCE initially prepared a VE analysis for the storm water detention system prior to approval of the grading and drainage plan. We identified over $200,000 in savings by eliminating the surface area of the existing wetlands from the detention calculations. Later we were contracted to VE the previously approved sanitary sewer plans. The system was financially infeasible and not realistically constructible. Through close coordination with the Skyway Water and Sewer District, SCE redesigned the sewer system and secured a permit. The new design re-routed the District‘s main offsite and reduced the depth of the system by an average of 10 feet resulting in a savings of $300,000. A third analysis and redesign was performed as SCE evaluated the domestic water metering required per the original permit. A more efficient metering system was re-permitted representing a savings of over $200,000 in metering fees alone. SCE provided construction assistance to the owner of this project for permitting through King County and other Engineering needs as they arose.


SCE is working for the Seattle Housing Authority as the civil engineer for the addition and reconstruction of the Leschi House located on S Weller St. in Seattle. It is an estimated $8M reconstruction project that includes demolition of existing parking and structures to make way for a new five story 34,000 sf building that will house 34 apartment units. This project also includes the re-landscaping of the open spaces and right of way frontage “green street” improvements as required by the rezoning for Z-1. SCE provided value engineering of a large structural solider pile wall that had been programmed as part of this reconstruction, and subsequently deleted from the project. SCE was instrumental in preparing a technical and defendable justification to avoid frontage improvements for the unimproved South Lane Street right of way. This project began construction in the summer of 2013.


SCE has completed the design for the redevelopment of Yesler Terrace Phase I – 1105 E Fir St. This is a 109 unit multi-housing re-development comprising of one mid- rise building and 3 triplexes. The Seattle Housing Authority’s (SHA) vision for the Yesler Terrace Community is to build a highly visionary mixed-income urban community for the 21st Century. The overall project encompasses such goals as reintegrating Yesler Terrace with the surrounding community and downtown, as well as developing Yesler Terrace as a model for a sustainable, green and healthy community. Maintaining Yesler Terrace as an affordable community, creating a livable, safe and vibrant community as well as supporting diversity are also large goals of the Project. SCE brings its expansive knowledge and experience of LEED certification, and sustainable site development to assist the team in achieving these goals that were not only applied to the site improvements but also to the street frontages: Boren Ave, E Fir St. and Yesler Way.