ADUs and Accessory Dwelling Units in Jacksonville & Northeast Florida

It depends on the size and scope of the work, so we price every project individually after seeing it in person. As a concrete reference point, a small bathroom of roughly 7x5 typically runs $10,000 to $14,000, and a master bathroom typically runs $17,000 to $35,000, with materials included in both. Your written proposal arrives within 48 hours of the on-site consultation and lays out the full scope and price, so you are never comparing guesses. Estimates and consultations are free.

We provide them. Through our partnership with Floor & Decor you work directly with an in-store designer to choose colours, tile, and finishes, and your selections go onto a form under our account. From there we purchase, pick up, and deliver everything to the job site. You get to make the fun decisions without managing orders, deliveries, or returns.

Yes. GIL pulls and handles all permits for your project — that is part of what you are hiring a licensed contractor to do, and it is included. Our licensed plumbing and electrical subcontractors pull their own trade permits under our master permit. You do not need to contact the building department or schedule an inspection yourself.

We give you a schedule in the written proposal and we finish on or ahead of it. A small bathroom is usually about 7 days including permitting; a master bathroom is typically 2 to 3 weeks. Larger work such as an addition or new construction runs longer and is scheduled specifically for your project. We complete 30 to 40 projects a year, so our timelines come from experience rather than optimism.

Cesar Perdomo, and he manages customers exclusively. This is the structural difference at GIL: our business partner runs the job sites, so Cesar is never pulled onto a roof or under a house when you call. At most contracting companies one person does both jobs, which is exactly why homeowners cannot reach their contractor mid-project. Someone here is always reachable by phone — no run-arounds and no no-shows.

An ADU is self-contained and an in-law suite addition is not. An accessory dwelling unit has its own kitchen, its own bathroom, and its own entrance, so it functions as a complete second residence on the same lot — someone can live there without walking through your house. An in-law suite addition is extra rooms built onto the main house: usually a bedroom, a bathroom, and a sitting area, sharing your kitchen and your front door. Which one is right for you comes down to how independent the two households need to be, and what your parcel and zoning district permit.

That is the first question we answer, and it genuinely depends on your parcel. Whether an accessory dwelling unit is permitted at all — and if so, how large it may be, where it may sit, how it must be parked, and whether the owner must live on site — is set by your local zoning district, and those rules differ across Duval, Clay, St. Johns, and Nassau counties and the cities within them. We will not quote you a rule from memory. We confirm what your specific parcel and zoning district allow before any design work begins, so nobody spends money on a plan that cannot be permitted.

Sometimes, and it depends entirely on your local rules rather than on the building itself. Some jurisdictions permit long-term rental of an accessory dwelling unit, some attach conditions, and some treat short-term rental very differently from long-term. Because that varies by jurisdiction and can change, we confirm the current position for your parcel during feasibility rather than promising you an outcome. What we can tell you is that we build to whatever the approved permit allows, so you are never relying on something unpermitted.

Often, yes, and it is one of the most cost-effective routes to a second living space because the slab, walls, and roof already exist. The work is in everything else: insulation, conditioned air, egress, plumbing and electrical brought up to habitable standard, and — if it is to be a true ADU rather than an extra room — a kitchen, a bathroom, and its own entrance. It still needs a permit, and it still needs the zoning check first, because losing a covered parking space is exactly the sort of thing local rules have an opinion about.

Longer than a room remodel and shorter than a full house, with the variables being size, whether you are building new or converting existing structure, and how quickly your jurisdiction turns the permit around. A detached ADU is effectively a small ground-up build — foundation, framing, dry-in, trades, and finishes. Rather than quote a generic number here, we give you a real date range in the written proposal once we have seen the site, and we finish on or ahead of it.

It adds usable, self-contained living space on land you already own, which is the part we can speak to honestly. What it does to your appraised value depends on your market, your jurisdiction, and how the unit is classified, so ask a local appraiser or agent rather than a contractor for that figure. The value most people are actually buying is the problem it solves — a parent close by rather than an hour away, or an adult child housed without either household losing its privacy.