Accessory Dwelling Unit (ADU) Construction in Largo, FL
At Coastal Haven Design + Build, we specialize in custom ADU construction in Largo, FL, helping homeowners create beautifully designed secondary living spaces that meet city zoning regulations and enhance long-term property value. Whether you're converting a garage, building a detached guest house, or finishing out an attic, our team ensures your project aligns with Largo’s CRD zoning standards and adds functional space that works for your lifestyle.
We bring together design vision, construction expertise, and a deep knowledge of Pinellas County requirements to deliver legally compliant, high-quality ADUs from the ground up.
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Make Room for What Matters
Our ADU Construction Services in Largo
Detached ADUs & Backyard Cottages
Create a standalone guest house or rental unit that fits seamlessly on your property. We handle design, setbacks, height limits, and parking compliance.
Garage Conversions & Above-Garage Suites
Turn existing garage space into a livable unit, or build above it for additional square footage — with matching rooflines and architectural details.
Attached & Upper-Level ADUs
Add an ADU above or beside your primary home with careful planning for entrances, privacy, and interior flow.
Multigenerational Living Spaces
Design a private, fully equipped living space for aging parents, adult children, or long-term guests — built for independence and comfort.
ADU Design, Permitting & Zoning Compliance
We guide you through the Flexible Standard Development application process, ensure code compliance, and align your ADU with Largo’s zoning standards.
Income-Generating Rental Units
Build a legal ADU designed specifically for long-term rental income. We help you create a private, fully rentable unit with durable finishes & separate utilities (when applicable),
ADU Contractor Services Built Around Your Property’s Potential
Why Largo Homeowners Choose Coastal Haven
Your Vision, Our Expertise
Zoning & Permit Expertise
We understand Largo’s ADU regulations — including height, square footage, setbacks, and parking — and ensure your project is code-compliant from the start.
Streamlined Construction Process
Our in-house team manages every step, from zoning approval to final inspection. No guesswork, no missed steps — just results.
Design That Matches Your Home
ADUs must complement the primary residence. We match paint schemes, window profiles, and rooflines for a cohesive final look.
Smart, Livable Design
We optimize every square foot, integrating full kitchens, bathrooms, and private entries into compact, efficient layouts that support real-world use.
Transform Your Space
Our Construction Process
Step 1: Consultation & Feasibility Review
We assess your lot, current home, and goals to determine the best ADU type — detached, attached, above-garage, or garage conversion.
Step 2: Design & City Submittals
We prepare your Flexible Standard Development application and create plans that meet zoning standards. We handle everything, including submission timelines and DRC coordination.
Step 3: Permitting & Site Prep
Once zoning approval is received, we manage all building permits and prepare the site for construction — including grading, foundation work, or utility planning.
Step 4: Construction & Finish
From framing to final finishes, we build your ADU with precision and care — aligning with both your home’s character and city guidelines.
Build Smart. Live Better.
At Coastal Haven Design + Build, we specialize in ADU construction in Largo, Florida that reflects your goals and complies with local rules. Whether you want to support family, generate long-term income, or simply maximize your space, we’ll help you create a secondary dwelling that enhances your home and your lifestyle.
Frequently Asked Questions
Got questions about pool renovations? We’ve got answers! Here are some of the most common inquiries we receive from homeowners looking to transform their spaces.
What qualifies as an Accessory Dwelling Unit in Largo, FL?
In Largo, an Accessory Dwelling Unit (ADU) is a fully self-contained residential unit that’s secondary to the main single-family home on a parcel. It must include a private entrance, full bathroom, sleeping area, and kitchen. ADUs can be attached to the main home, converted from existing interior space like an attic, or constructed as detached units such as garage apartments or backyard cottages. Our team will help determine if your property qualifies and manage the entire permitting process required by the city and Pinellas County.
Where in Largo can I legally build an ADU?
No — ADUs are only permitted within certain areas of Largo’s Community Redevelopment Districts (CRDs), specifically the Neighborhood Residential (NR) and City Home (CH) Character Districts. These locations must also meet strict standards regarding structure size, lot coverage, and architectural compatibility. As experienced local ADU contractors, we’ll evaluate your parcel’s zoning and confirm whether you’re eligible to move forward with a legal ADU project.
How big can an ADU be in Largo?
Largo’s development code limits the gross floor area of an ADU to no more than 50% of the air-conditioned space in the principal structure. For example, if your main home is 1,800 square feet of conditioned space, the ADU cannot exceed 900 square feet. We help you maximize this allowable square footage through thoughtful layout and efficient design while ensuring full compliance with local code.
Can I rent out my ADU for vacation or short-term stays?
No. Short-term vacation rentals are not permitted in single-family zoning districts in Largo unless the entire dwelling meets the standards outlined in Section 15.20 of the city’s code. However, ADUs may be rented for long-term or extended stays (31 days or more), as long as the primary residence remains owner-occupied. If your goal is to generate legal rental income from your ADU, we’ll help you structure the unit appropriately and assist with required approvals through both the city and Pinellas County.
Does the ADU need to match the main house in appearance?
Yes. Largo’s code requires all ADUs — especially detached or second-story units — to maintain architectural compatibility with the main residence. That includes rooflines, window styles, siding materials, and exterior finishes. Our contractors ensure every detail matches the existing structure or enhances it subtly, preserving neighborhood character and meeting city aesthetic requirements.
What are the parking requirements for ADUs?
Your ADU cannot reduce the number of existing parking spaces for your main home. In addition, off-street parking must still be maintained and meet any other applicable standards in Largo’s CRD code. We incorporate parking into the initial site plan review to ensure compliance and avoid delays during permitting.
What’s the approval process for building an ADU, Granny Flat, or Garage Apartment?
Before a building permit can be issued, you’ll need to submit a Flexible Development Standards application that’s reviewed under Largo’s Community Development Code. This step is mandatory for any property within the CRDs and involves confirming architectural compatibility, square footage limits, and code compliance. We handle this entire process for you — from submitting the application to coordinating feedback and securing final approvals from Pinellas County and city officials.
Can I rent out my unit for short-term stays like Airbnb?
Yes — but only if you meet Largo’s specific short-term rental regulations under Ordinance No. 2019-28. In Largo, a short-term vacation rental is defined as a unit rented more than three times per year for periods less than 30 days or one full calendar month. If your Accessory Dwelling Unit (ADU) meets this definition, it qualifies as a short-term rental and must comply with both local and state requirements.
To operate a short-term rental legally in Largo, you’ll need to:
- Adhere to occupancy limits (1 person per 150 sq ft of conditioned space)
- Provide off-street parking (1 space per 3 guests)
- Install safety features like fire extinguishers and post emergency contact info inside the unit
- Designate a responsible party who can respond to issues within 2 hours
- Register with the Florida Department of Revenue and DBPR to collect sales and tourist taxes
Our team will guide you through every step — from determining if your ADU is eligible for short-term use, to helping you apply for licensing, schedule inspections, and design the unit to meet all legal and safety standards. As local ADU contractors in Pinellas County, we not only build compliant units but also help property owners structure them for long-term or short-term rental success based on local law.
Whether you're creating a guest house for family or planning to list your ADU on Airbnb, we'll make sure your build meets Largo’s residential character standards and rental compliance regulations from day one.
More Areas We Serve
Build proudly serves the entire Tampa Bay area, bringing exceptional home remodeling services to Largo and the following areas: