ZENIA Building, LLC

ZENIA Building: A B2B ADU and Residential Construction Partner in the Carolinas

ZENIA Building is a turnkey construction company serving real estate investors, developers, and landlords across the Carolinas. Specializing in accessory dwelling unit construction, single family homes, and multifamily properties, they offer residential products starting at $120 per square foot. Their approach is intentionally B2B-focused, meaning they work with professionals in the real estate space rather than individual homeowners.

As an experienced ADU builder, ZENIA constructs compact, versatile, and efficient accessory dwelling units ranging from 500 to 988 square feet. These units are ideal for guest houses and short-term rental income. Their ADU floor plan lineup includes models such as:

1. The Brown – 594 sq ft, 1 bed / 1 bath
2. The Fuller – 506 sq ft, 1 bed / 1 bath
3. The Kelsey – 980 sq ft, 2 beds / 1 bath
4. The Kennedy – 884 sq ft, 2 beds / 2 bath
5. The Williams – 872 sq ft, 1 bed / 1 bath

Beyond ADUs, ZENIA also builds single family homes designed for investors developing spec properties or holding them as rentals, as well as multifamily units built for durability, low maintenance, and cost-effective construction. These can be sold as duets or retained for long-term cash flow.

Transparent Pricing and a Straightforward Process

One of ZENIA's defining characteristics is their commitment to pricing transparency. North Carolina construction costs in 2025 typically range between $120 and $190 per square foot for most residential projects. Rather than offering vague estimates, ZENIA conducts a thorough site evaluation before delivering a single, all-inclusive turnkey proposal. There are no hidden fees and no change order games — their quoted number is their final number.

Their process is structured and straightforward, broken into six clear steps:

1. Introduction – An initial conversation to understand building needs and determine mutual fit.
2. Site Evaluation – A visit to the property to assess utilities, site work, accessibility, and logistics.
3. Plan Selection – Design adjustments are made and project scope and specifications are agreed upon.
4. Turnkey Proposal – A single, fixed price is provided with no surprises.
5. Construction – The ZENIA team manages the build with weekly progress updates.
6. Copy & Paste – After a successful first project, the goal is a long-term building partnership.

What Sets ZENIA Apart as an ADU Contractor

ZENIA Building was founded by Steven Allen Johnson, who brings experience across single family rentals, tech startups, and commercial real estate. The company positions itself between corporate tract builders and luxury custom builders — delivering custom home quality at tract builder pricing through tight control over design, supply chains, subcontractors, and internal processes.

Key differentiators include:

1. Intentional B2B Focus – They serve investors, landlords, and developers exclusively.
2. Catalog of Products – Standardized designs with transparent pricing, inspired by the Sears model of over a century ago.
3. Consistent Communication – One dedicated point of contact throughout every project.
4. Design & Attention to Detail – A genuine commitment to thoughtful design and continuous improvement.
5. Professional Project Management – Proven processes and platforms to keep projects on track.

For real estate professionals looking for a reliable ADU contractor or accessory dwelling unit builder in North Carolina or the broader Carolinas region, ZENIA Building offers a compelling combination of quality, transparency, and professional service.