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ADU construction in Florida — a Pro Work crew building a wind-rated detached in-law suite cottage

St. Augustine · St. Johns County · Florida

ADU & In-Law Suite Construction in Old City

An ADU is a complete second home on your lot — its own kitchen, bath, and entrance — and in Florida it is the go-to for multigenerational living and rental income. We confirm your lot is buildable, build to the FBC with wind/HVHZ compliance, handle egress and utilities, and stand for the inspections so the unit is a legal, storm-ready dwelling.

ADU & In-Law Suite Construction for homes in the Old City area of St. Augustine, Florida — spec'd for Florida slab construction, humidity and the building code, with a free in-home estimate.

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See ADU & In-Law Suite Construction Done Right in Florida

ADU & In-Law Suite Construction in the Old City Area of St. Augustine

Old City sits in the core of St. Augustine. As a coastal St. Augustine neighborhood, Old City sees salt air and high humidity that drive material choice and moisture control for adu-construction. Pro Work Flooring also serves the nearby St. Augustine neighborhoods of Model Land Historic District, Davis Shores, Anastasia Island Town Homes.

Old City homes face specific challenges that shape every adu-construction decision we make:

Service area: Old City, Florida. View larger map

About ADU & In-Law Suite Construction

We'll help you weigh the adu-construction materials that make sense for Old City conditions:

From first call to final walkthrough, here's what adu-construction in Old City looks like:

See the full ADU & In-Law Suite Construction guide — materials, process and detail →

ADU & In-Law Suite Construction Near Old City

We cover adu-construction across St. Johns County — communities close to Old City include:

ADU & In-Law Suite Construction FAQs for Old City

Do you serve Old City, Florida?

Yes — Pro Work Flooring covers Old City and the wider St. Johns County area for adu-construction. Request a free estimate and we'll schedule a visit.

How does the coast affect adu-construction in Old City?

Salt air and humidity near the coast push us toward moisture-tolerant materials, careful acclimation, and subfloor moisture testing before any adu-construction in Old City.

What's the first step for adu-construction in Old City?

From first call to final walkthrough, here's what adu-construction in Old City looks like:

A Second Home on Your Lot — Built Right.

Free consultation. Lot feasibility checked. Wind-rated structure. Egress and utilities handled. Permits handled. No pressure.