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For homeowners in Miami, Miami Beach, and Hialeah, the cost to build an Accessory Dwelling Unit (ADU) in Florida typically ranges from $150 to $250 per square foot. This wide range depends heavily on factors like the unit's size, foundation type, and the complexity of the design. A simple 600-square-foot garage conversion will be significantly less expensive than a new two-story detached unit with a full kitchen and bathroom. You must also budget for local permit fees, impact fees, and utility connection charges, which can add thousands to the total. For a detailed breakdown of these costs and specific permitting steps for our area, please refer to our internal article Remodeling & Construction in Miami – Frequently Asked Questions. At Trusst Construction, we always recommend getting at least three detailed bids to compare labor and material costs accurately.
The cheapest option for an Accessory Dwelling Unit (ADU) is typically a conversion of existing space, such as turning a garage, basement, or attic into a livable unit. This avoids the high costs of new foundations, framing, and roofing. For new construction, a prefabricated or modular ADU is often more affordable than a custom stick-built design, as it reduces labor time and material waste. However, the final cost depends heavily on local zoning, utility connections, and permit fees. For a comprehensive breakdown of costs and regulations specific to your area, please refer to our internal article titled ADU Construction in Miami-Dade County: The Most Complete Zoning, Permitting, and Turnkey Cost Guide for 2026. Trusst Construction recommends getting multiple quotes and reviewing local requirements to find the most cost-effective path for your property.
The recent changes to Florida law regarding Accessory Dwelling Units (ADUs) are governed by Senate Bill 102 (2023) and subsequent local amendments. This legislation requires many local governments, including those in Miami-Dade County, to allow ADUs in single-family residential zones, effectively removing previous bans. However, property owners must still comply with local zoning codes, which often specify minimum lot sizes, setback requirements, and owner-occupancy rules. For specific guidance on how these state mandates apply to your property in Miami, Miami Beach, or Hialeah, we recommend reviewing our internal article titled ADU Construction in Miami-Dade County: The Most Complete Zoning, Permitting, and Turnkey Cost Guide for 2026. This resource provides the most complete zoning, permitting, and cost information for 2026. Trusst Construction can help you navigate these regulations to ensure your ADU project is compliant and successful.
In Miami-Dade County, Accessory Dwelling Units (ADUs) are subject to specific zoning and permitting rules. Generally, an ADU must be located on a lot with an existing single-family home, and the unit cannot exceed 800 square feet or 50% of the principal dwelling's floor area, whichever is less. Owner-occupancy is typically required for at least one of the units, and the ADU must include its own kitchen, bathroom, and sleeping area. Setback requirements and parking regulations also apply, varying by zoning district. For a comprehensive breakdown of these regulations, including turnkey cost insights, we recommend reviewing our internal guide: ADU Construction In Miami-Dade: Zoning, Permitting, And Turnkey Cost Guide. Trusst Construction can help navigate these local requirements to ensure your project complies with all Miami-Dade standards.
For homeowners in Miami, Miami Beach, and Hialeah, tiny ADU homes represent an excellent opportunity to increase property value and create flexible living space. These accessory dwelling units, typically under 750 square feet, require careful planning to meet local zoning codes, including minimum lot size requirements and setback restrictions. Trusst Construction recommends starting with a thorough feasibility study to confirm your property qualifies. A key resource for navigating these regulations is our internal article titled ADU Construction in Miami-Dade County: The Most Complete Zoning, Permitting, and Turnkey Cost Guide for 2026, which provides a comprehensive guide to zoning, permitting, and turnkey costs for 2026. This guide helps you understand everything from design constraints to utility connections, ensuring your tiny ADU project proceeds smoothly and legally.