Unincorporated Hillsborough County
First-Floor Suites in Sun City Center, for Your Own Later Years
In Sun City Center the new suite is often for the homeowners themselves, and that changes the tax picture: the parent or grandparent reduction does not cover space added for your own use. The median age here is 69.1, the oldest of any community on this site, and new square footage on a capped homestead is assessed at full just value.
Request a quote in Sun City Center
Who the space is for, whether it needs a kitchen, and the address. With those three answers we can say which city or county rules govern the lot before a contractor draws anything.
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Sun City Center under Hillsborough County's one-kitchen rule
Sun City Center is unincorporated, so Hillsborough County Development Services handles zoning, plan review and inspections. For a first-floor bedroom and bath added to the house, the county's one-kitchen rule is the line to respect: a dwelling may have only one kitchen, and a second one inside the home needs special use approval in every case. If the suite is for a parent or grandparent aged 62 or older rather than for you, Hillsborough's reduction does apply to a permitted suite. A detached unit is possible only as an ADU, up to 900 square feet on a lot of at least 7,000 square feet, because the county bars sleeping in any other detached structure. The ZIP code covering Sun City Center, 33573, shows 50 NFIP claims in total, so flood is seldom what shapes the plan.
Is the Sun City Center suite for you or for a parent?
The answer decides whether the county's tax reduction is on the table. Tell us, and we will set the rest of the plan around it.
First-floor suites and parent additions arranged in Sun City Center
In-Law Suite Additions
Add a bedroom, a bathroom and a sitting room onto the house so a parent can live with you and still close a door of their own, planned so the kitchen decision does not turn it into a second dwelling by accident.
In-Law Suites in Sun City Center →First-Floor Primary Suite Additions
Put a bedroom and a bathroom on the ground floor for someone who can no longer manage the stairs, without the addition pulling the whole house under current flood rules.
First-Floor Suites in Sun City Center →Detached ADUs and Backyard Cottages
Put a small, separate home in the backyard for a parent, close enough to help and far enough for their own front door, under the rules that actually govern the lot.
Detached ADUs in Sun City Center →Sun City Center's age profile, tax rules and flood history
The 2020-2024 American Community Survey estimates Sun City Center's median age at 69.1, with 58.4 percent of residents aged 65 or older and 63.1 percent aged 62 or older, compared with 15.0 percent aged 65 or older in Hillsborough County. Of its 19,017 housing units, 23.5 percent were built before 1980 and 45.6 percent in 2000 or later.
Source: U.S. Census Bureau, American Community Survey, accessed 2026-09-23
Under Florida's Save Our Homes statute, F.S. 193.155(4)(a), changes, additions or improvements to a homestead are assessed at just value as of the first January 1 after they are substantially completed.
Source: The Florida Senate (Florida Statutes), accessed 2026-09-23
Hillsborough County has adopted the parent and grandparent reduction by ordinance (Ord. No. 04-35, 2004, Code Chapter 46, Division 3). It applies to construction after January 7, 2003, applies to the tax levies of all taxing authorities in Hillsborough County, and is granted only where the construction complies with the Land Development Code and the Florida Building Code.
Source: Hillsborough County Board of County Commissioners (Municode), accessed 2026-09-23
Hillsborough County defines an accessory dwelling as a second dwelling unit with its own sleeping, individual kitchen, bathing and toilet facilities, and says occupancy by members of the same family has no bearing on that definition. A dwelling may have only one kitchen (sink, stove and refrigerator); a second, accessory kitchen inside the home requires special use approval in all cases and may not be designed to create a second unit.
Source: Hillsborough County (Municode), accessed 2026-09-23
Unincorporated Hillsborough County's Land Development Code (Sec. 6.11.02) limits accessory dwelling living space to 900 square feet, requires a lot of at least 7,000 square feet and an owner-occupied principal home, allows attached or detached units, and allows one per lot. A variance to go larger is available only on lots of at least 14,520 square feet, and then to no more than 1,200 square feet or 25 percent of the main home's living space, whichever is less; living space includes storage and laundry.
Source: Hillsborough County (Municode), accessed 2026-09-23
Hillsborough County's code says any detached structure, or any part of a home that cannot be reached internally, that does not meet the accessory dwelling requirements may not be used for independent living quarters or for sleeping, including guest visits, at any time.
Source: Hillsborough County (Municode), accessed 2026-09-23
OpenFEMA NFIP claims by reported ZIP code (as of September 2026): Apollo Beach ZIP 33572: 985 claims (791 in 2024, $86.8 million paid); Riverview ZIP 33569, 33578 and 33579: 553 claims (170 in 2024, $18.4 million paid); Brandon ZIP 33510 and 33511: 215 claims (70 in 2024, $7.0 million paid); Sun City Center ZIP 33573: 50 claims (14 in 2024, $0.1 million paid).
Source: Federal Emergency Management Agency (OpenFEMA), accessed 2026-09-23
Describe the one-level layout you want in Sun City Center
A primary bedroom and bath off the living area, a wider hallway, a walk-in shower. We match the job to a licensed contractor who works in unincorporated Hillsborough.