Arlington ADU Builder: The Difference Between a Finished ADU and a Stalled Project

Look for a builder with direct Arlington County ADU permitting experience, an integrated design-build model (design and construction under one roof), and a portfolio of completed ADU projects in Northern Virginia. Berriz Design Build meets all three criteria with over 36 years of local experience.

Technically yes, but practically no. Arlington County's ADU permitting requirements are complex, and contractors without direct experience frequently encounter revision cycles, delays, and compliance issues. Berriz Design Build specializes in Arlington ADU construction and manages the entire process in-house.

We start with a site evaluation and zoning analysis, then move to design, permit preparation, construction, and final walkthrough — all under one roof. Our integrated model means no handoff delays between design and construction phases.

ADU construction costs in Arlington typically range from $150,000 to $400,000+ depending on type and scope. Use our Pricing Guide for current ranges. Berriz Design Build provides transparent, itemized estimates before any work begins.

From initial consultation through final certificate of occupancy, most ADU projects take 8–14 months. Permitting alone takes 6–14 weeks. Berriz Design Build's integrated process compresses the overall timeline.

36+ years of Northern Virginia design-build experience, an in-house design team, and a track record of successfully permitted and completed ADU projects throughout Arlington County. One team, one contract, one accountable partner.