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Onyx+East, a full-service homebuilder based in Indianapolis, and IHP Capital Partners, one of the nation’s leading residential real estate investment firms, has announced the closing of 44 acres for the development of Trillium, a new for-sale home community in Westfield.
Groundbreaking and construction are expected to begin in July 2026, with sales launching, along with four model homes and several quick move-ins, scheduled for spring 2027.
Located at 199th Street and the Monon Trail, Trillium combines modern design, open space, and trail-side convenience in one of Hamilton County’s most desirable areas. The project will offer a diverse mix of homesites, from low-maintenance courtyard lots to expansive executive homes, designed to accommodate different stages of life and personal preferences. At completion, the community will feature 119 detached single-family homes ranging from 2,000 to 4,500 square feet of finished living space, each with an additional unfinished basement spanning approximately 1,100 to 2,000 square feet. Homes will offer 10-foot ceilings, flexible floor plans, three to five bedrooms, and 2.5 and 3.5 bathrooms.
Ten courtyard homes will offer direct access to the Monon Trail, Indiana’s award-winning rail trail. The community will also feature more than nine acres of landscaped open space, including walking paths, gathering areas, and a naturalized playground, along with a direct connection to the Monon Trail at 199th Street.
“Guided by extensive research, the newly designed floor plans reflect a modern approach to living – adaptable, functional, and responsive to a range of lifestyles,” Onyx+East CEO Kelli Lawrence said. “Trillium allows us to expand our home offerings for buyers seeking elevated living options while breaking away from traditional suburban development. With unique site plans, distinctive architecture, and direct access to the Monon, the community offers a rare opportunity for thoughtful, design-forward living in Westfield.”
Buyers will have the opportunity to personalize their homes at Onyx+East’s local design center, working with experienced designers to select finishes, layouts, and details that align with personal preferences. Smart home technology and thoughtful design features will also be incorporated to appeal to a range of buyers, including move-up homeowners, young families, and downsizers.
Trillium is surrounded on three sides by the established and nearly sold-out Chatham Hills masterplan golf community, with the Monon Trail running directly along the eastern boundary, providing walkable access to a 20-mile regional recreation corridor. The surrounding neighborhood consists of upscale detached homes, high-performing public schools, and proximity to major employment centers accessed via U.S. 31, located just one mile east of the property. Downtown Indianapolis lies approximately 20 miles to the south of the site.
While Trillium marks Onyx+East’s first development in Westfield, the community is part of the company’s broader expansion across Hamilton County. Onyx+East is actively selling and constructing at Flora in Carmel, a 121-home community set on 37 acres, and Nickel Row in Fishers, a 35-unit townhome community located along the Nickel Plate Trail. Onyx+East also has other thriving communities throughout the greater Indianapolis area.
“We are excited to partner with Onyx+East as we enter the Indianapolis market with the Trillium project,” IHP Capital Partners Co-president Richard Whiteley said. “Their team brings extensive local market knowledge, a seasoned leadership group with strong construction expertise and a proven ability to deliver high-quality communities on time and on budget. We look forward to working together to bring a thoughtfully designed neighborhood to Westfield while establishing a new long-term partnership in the Midwest.”
Whelan Advisory served as the exclusive financial advisor to Onyx+East. To learn more about Onyx+East and stay updated on Trillium and other developments in Indiana, please visit onyxandeast.com.

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