Custom builder in Jacksonville, Florida

Yes. Jacksonville is inside our regular working area from Keystone Heights — we cover all of Duval County and the 6 neighboring counties we serve. Call (352) 478-6112 and we'll come walk the property.

City of Jacksonville Building Inspection Division. Consolidated city-county permitting through one office, with separate historic district review where it applies. We handle the permit applications and the agency coordination as part of every job.

Everything from firm river-terrace sand downtown to soft, filled marsh ground on the edges — soils change block to block, not neighborhood to neighborhood. The St. Johns runs through the middle of the city and is tidal all the way past downtown, so riverfront work is saltwater work. Both of those shape foundation, drainage and site work decisions here.

Mostly historic urban homes, riverfront property, light commercial buildings, infill lots. A genuinely wide range: 1910s brick and frame near the river, 1950s block ranches in the middle ring, and 2000s slab construction on the perimeter.

Yes — Keystone Custom Builders holds Florida Certified Building Contractor licence CBC1265492, which covers residential and light commercial construction statewide, and we carry general liability and workers' compensation coverage.