Sammamish's housing stock is dominated by well-maintained single-family homes, with a mix that runs from classic suburban neighborhoods to newer construction in planned communities. The city also offers modern townhomes and updated residences, while the upper end of the market is anchored by large luxury homes in communities such as Sahalee and Trossachs. Because much of the city was developed in waves from the 1980s onward, many homes are relatively contemporary in design, though established neighborhoods with mature landscaping are common. Waterfront and golf-course properties along Lake Sammamish command particular interest, and home values generally reflect the area's strong schools, low density, and proximity to Eastside employment centers.

Sahalee is Sammamish's best-known neighborhood, a prestigious community built around the Sahalee Country Club with waterfront homes along Lake Sammamish and large New Traditional and contemporary residences. Trossachs is another upscale planned community, known for newer luxury homes and neighborhood amenities. Klahanie, which straddles the border with Issaquah, is a large master-planned community with parks, trails, and its own commercial village, popular with families for its walkable design. The Highlands and other central plateau neighborhoods offer established single-family homes close to schools and parks. Across the city, neighborhoods are tied together by an extensive trail system and a shared emphasis on parks and open space.

Sammamish is a quintessential Eastside suburb: quiet, green, and family-centered. Daily life is shaped by highly rated schools, an extensive park and trail network, and access to Lake Sammamish, which gives the community a relaxed, outdoor-oriented character. The city is predominantly residential, with neighborhoods organized around parks, trail connections, and school attendance areas, and its commercial core serves everyday needs while larger shopping and dining clusters in neighboring Issaquah and Redmond. Residents tend to work in the technology and professional sectors across Bellevue, Redmond, and Seattle, and the community's affluence, safety, and emphasis on education draw families seeking a stable, high-quality suburban environment.

Sammamish is served by two highly regarded public school districts: the Lake Washington School District covers the northern portion of the city, while the Issaquah School District serves the southern portion. Both districts are large, well-funded, and known for strong academic performance, and they operate several elementary, middle, and high schools either within the city or immediately adjacent. Because the city spans two districts and school reputations vary by attendance area, families often factor specific school assignments into their home search. Several private schools in the Eastside also serve Sammamish families, adding options beyond the public system.

Sammamish's commute profile is built around Interstate 90 and State Route 520, the two major east-west corridors linking the Eastside to Bellevue, Redmond, and Seattle. The city sits roughly 20 miles east of downtown Seattle, and travel times hinge on which corridor residents use and on peak-hour congestion. Because Sammamish has no direct freeway through its center, most residents drive a short distance to reach either highway. The Sammamish River Trail and regional bus service provide limited alternatives, but the area remains car-dependent overall, with proximity to the Eastside's employment hubs shaping commuting patterns.

Outdoor recreation is central to Sammamish's identity. Lake Sammamish State Park, at the lake's southern end in nearby Issaquah, offers swimming beaches, trails, volleyball courts, and soccer fields. The Sammamish River Trail runs along the valley to the north, providing a popular corridor for cycling, running, and walking, and it doubles as a non-motorized commute route toward Seattle. Within the city, a dense network of plateau parks and neighborhood trails preserves green space and connects subdivisions to schools and shopping. The surrounding Cascade foothills and the Snoqualmie Valley add hiking and seasonal recreation nearby, while the Sahalee Country Club offers championship golf within the community.