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Tarpon Springs, FL

Tarpon Springs Backyard Cottages and the 20 Percent Rule

In Tarpon Springs the owner must live in the main house, not the cottage, so decide who stays where before a parent's unit is planned.

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62The age at least one parent or grandparent must have reached for the living quarters reduction in Florida Statute 193.703
50%Of a structure's market value, the cost at which 44 CFR 59.1 makes an addition a substantial improvement
16 townsCovered across Hillsborough, Pinellas and Pasco counties, each with its own local rules set out on its page
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Detached ADUs quote in Tarpon Springs

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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Credited by us on your first booked job.

  • One credit per customer per property, on your first booked job.
  • Valid through December 31, 2026.
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Five short questions about who the space is for and what it needs to hold, then where to reach you. Most people finish in about a minute.

Question 1What are you thinking of building?

Pick the closest. If you are not sure yet, that is exactly what we help sort out.

Question 2Who will live in it?

This matters more than it sounds. In Florida the answer can change the property tax on what you build.

Question 3Does the new space need its own kitchen?

In Florida law a space with its own kitchen, bathroom and bedroom is a second dwelling, and each city and county decides whether one is allowed on your lot.

Question 4Is the house in a flood zone?

In a flood zone, a large enough addition can mean the whole house has to meet today's flood rules. Your insurance declarations page or the county flood map will say.

Question 5When does the space need to be ready?
About you, and the house the space would join

Who should we ask for?

How can we reach you?

We call to confirm the details before anyone is sent out.

Where is the property?

The contractor match is by property, not by person, so the street line matters.

Anything else we should know?

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Your details are used only to respond to this request and arrange the service.

Deciding

Flood and the covenant on a Tarpon Springs cottage

Near the water, flood is a live question for a new unit. Tarpon Springs' NFIP record holds 1,415 claims, 717 of them in 2024, so check the parcel's flood zone before choosing where the cottage sits. If the job also touches the main house, the Pinellas County Property Appraiser's FEMA/WLM letter shows the structure value it is measured against. The recorded restrictive covenant stays with the property, so read its terms with the family before signing.

  1. Owner in the main house

    The primary dwelling must be owner-occupied under the city's definition.

  2. One meter for both

    A separate metered utility connection is not allowed, so the cottage runs off the house service.

  3. Only large homes gain from 20 percent

    Twenty percent beats 600 square feet only on a primary structure over 3,000 square feet.

How detached adus works →

Local Detail

Tarpon Springs' ADU definition and parcel flood letter

Floor plan drawings for a small home addition beside a tape measure

Tarpon Springs defines an accessory dwelling unit as up to 600 square feet or 20 percent of the primary structure's floor area, whichever is greater, one per parcel, with the primary dwelling owner-occupied, no separate metered utility connection, and a recorded restrictive covenant.

Source: City of Tarpon Springs (Municode), accessed 2026-09-23

St. Petersburg, Clearwater, Largo, Pinellas Park, Dunedin, Seminole and Tarpon Springs each operate their own building departments, per the Pinellas County Construction Licensing Board's directory updated January 2025.

Source: Pinellas County Construction Licensing Board, accessed 2026-09-23

OpenFEMA's redacted NFIP claims data (as of September 2026) records, by NFIP community, with records beginning in 1978: St. Petersburg 16,189 claims (8,670 in 2024, $1,266.6 million paid in total); Clearwater 2,951 claims (1,472 in 2024, $231.5 million paid in total); Dunedin 1,601 claims (791 in 2024, $123.0 million paid in total); Tarpon Springs 1,415 claims (717 in 2024, $56.3 million paid in total); Largo 781 claims (497 in 2024, $78.6 million paid in total); Pinellas Park 895 claims (228 in 2024, $15.9 million paid in total); Oldsmar 776 claims (454 in 2024, $40.5 million paid in total); Seminole 223 claims (180 in 2024, $13.9 million paid in total); Safety Harbor 147 claims (61 in 2024, $5.2 million paid in total).

Source: Federal Emergency Management Agency (OpenFEMA), accessed 2026-09-23

The Pinellas County Property Appraiser publishes a FEMA/WLM letter for each parcel, reached from the Quick Pick Tool box on the parcel page, showing the structure value used for 50 percent or 49 percent determinations.

Source: Pinellas County Property Appraiser, accessed 2026-09-23

Licensed and insured Florida contractorsVetted local contractors licensed by the State of Florida and insured for the work, who price and contract it themselves
The three rules checked for your addressThe kitchen, the flood line and the county tax rule looked at before any contractor is asked for a number
Told when an addition is not the answerIf a first-floor room or a bathroom change inside the house would do, you hear that before anyone draws a suite
In The Field

What detached adus involves in Tarpon Springs

Floor plan drawings for a small home addition beside a tape measure
A wide doorway with no threshold and a lever door handle
Local Context

Who lives where on a Tarpon Springs ADU lot

Families sometimes plan for a parent who owns the house to move into a new cottage while the children take the main home. In Tarpon Springs that arrangement needs rethinking, because the city's definition requires the primary dwelling to be owner-occupied. The cottage itself may be up to 600 square feet or 20 percent of the primary structure's floor area, whichever is greater, one per parcel. It may not have its own metered utility connection, and a restrictive covenant is recorded against the property. Settle who owns and who lives in the main house first, and the rest of the design follows.

A quiet Tampa Bay street of single-story ranch houses near a canal
Next Step

Who will own and live in the Tarpon Springs house?

Tell us, and send the address. We will check the occupancy rule and the flood zone before a contractor sizes a cottage.

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Questions

Tarpon Springs parent cottage questions

Can my mother own the house and live in the Tarpon Springs cottage?

Not under the city's definition as written, which requires the primary dwelling to be owner-occupied. How ownership is arranged is a question for your attorney; our part is making sure the contractor plans for the rule.

Who issues the permit for a Tarpon Springs ADU?

The city. Tarpon Springs operates its own building department, per the Pinellas County Construction Licensing Board's directory.

Next Step

A Tarpon Springs cottage planned around the rules

Who it is for and where the lot is. We pass it to a vetted Florida-licensed contractor, and nothing you send is binding.

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