Builder Directory

This Pennsylvania-based manufacturer specializes in designing and delivering turnkey tiny homes and accessory dwelling units, handling the entire process from design and permitting through completion to minimize construction surprises and ensure on-time, on-budget delivery. The company offers both detached and attached ADUs, standalone tiny homes, and custom pool houses, using high-quality materials backed by manufacturer warranties while providing standard and fully customized floor plan options. Acorn Tiny Homes targets diverse clientele including multigenerational households, rental property investors, first-time homebuyers, and those downsizing, positioning ADUs and tiny homes as solutions for increasing property value and lifestyle flexibility.

This award-winning, second-generation design-build firm serves Central New Jersey across Hunterdon, Somerset, and Mercer counties, specializing in custom homes tailored to clients' unique budgets and timelines. GTG Builders distinguishes itself through a client-centered design-build process that integrates experienced builders with a vetted network of local architects and designers, handling projects from concept through completion. With over 25 years of experience, the firm emphasizes streamlined project management and customer satisfaction, working flexibly whether clients are starting from scratch, seeking land, or already partnered with design professionals.

This Pennsylvania-based builder specializes in fully custom home design and construction across the Lancaster, Lebanon, Hershey, and West Chester regions, leveraging in-house designers to realize client visions without standard limitations. Beyond new builds completed in approximately four months on average, the company offers custom additions, renovations, garages, and outbuildings, positioning itself as a comprehensive solution for both new construction and existing home expansion. Ironstone emphasizes a streamlined design-to-build process and quality craftsmanship as core differentiators, with clients frequently noting the stress-free experience throughout construction.

This Philadelphia-based design-build firm specializes in detached ADUs and guest houses, offering full-service capabilities from initial design through final construction. The company brings deep expertise in navigating the city's complex zoning codes—particularly RSA-5 and CMX-1 district requirements—and the Philadelphia L&I permit process. Known for high customer satisfaction ratings on Yelp, the firm serves the greater Philadelphia region with projects tailored to local regulatory environments.

This award-winning Pittsburgh-based builder specializes in custom home construction and remodeling, serving the local market for 25 years with a design-build approach emphasizing streamlined processes and client experience. Prime1 Builders distinguishes itself through personalized service and comprehensive project management, from initial design through completion, as evidenced by its 2025 Chrysalis Award recognition. The firm operates as a family business focused on creating memorable building experiences rather than relying solely on premium materials and finishes.

This New York-based modular home manufacturer specializes in fully customizable residential units across multiple architectural styles, from ranches and colonials to townhouses and multi-unit rental properties. The company distinguishes itself through factory-controlled construction that allows simultaneous foundation and home building, significantly accelerating project timelines compared to traditional stick-built methods. Westchester Modular works with builders, developers, and individual homeowners, offering either pre-designed plans or complete custom design services in collaboration with architects.

This Pennsylvania-licensed general contractor brings in-house expertise across surveying, architecture, drafting, project management, and construction to handle ADU development in the Pittsburgh market. The firm specializes in both attached additions and detached units, serving clients seeking rental income or multigenerational housing solutions while navigating the region's complex zoning codes and property restrictions. Willner Enterprises' deep knowledge of Pittsburgh's municipal regulations positions it to guide projects through local approval processes that often challenge ADU development in the area.