Mansions by the Sea Condos, Treasure Island

Updated October 2026.

Mansions by the Sea is a gated, two-tower condo community at 7600 and 7650 Bayshore Drive in Treasure Island, directly on the Gulf at the south end of the island. Listing records show it was built in 1980, with mostly two bedroom units and some larger combined residences. It suits buyers who want a full-time or seasonal home on the beach with a long list of on-site amenities, and it is not a fit for pet owners or anyone planning short vacation rentals.

We are John and Nicole Kavaliauskas, licensed Florida Realtors with LoKation Real Estate. Here is what public records and listing data show about Mansions by the Sea, and what to confirm with the association before you buy.

Mansions by the Sea quick facts

Item	Detail
Name	Mansions by the Sea Condominium
Address	7600 and 7650 Bayshore Dr, Treasure Island, FL 33706
Setting	Gulf-front, gated, between the Gulf and the Intracoastal Waterway
Year built	1980 (listing records)
Buildings	Two towers, listed as Building A and Building B
Stories	Listing records show 12 stories; one agent page shows 11
Units	One building page shows 135 units; another shows 89
Unit sizes	Listing records show about 1,015 to 1,510 square feet, with combined units up to about 3,000
Rental minimum	A rental manager states a 30 night minimum; confirm with the association
Pets	Most listing records show pets not allowed
Parking	Listing records show assigned garage and carport spaces, plus guest parking

Location and setting

Mansions by the Sea sits on Bayshore Drive in the Sunset Beach area at the southern tip of Treasure Island. The owner rental site describes the community as gated and directly on the Gulf of Mexico, and listings describe views of the Gulf, the Intracoastal Waterway and the bay from different units. Lands End, a low-rise condo complex, is its neighbor to the south.

Sunset Beach is a quieter, mostly residential stretch of Treasure Island, with restaurants and beach bars along Gulf Boulevard nearby. For more on the city, see our Treasure Island guide.

Residences and amenities

Listing records show one and two bedroom units of about 1,015 to 1,510 square feet, and building pages list some combined residences of about 3,000 square feet. Listings describe large wraparound balconies on corner units, in-unit washers and dryers, and condition ranging from original to fully renovated.

Listing records and rental sites describe these shared features:

• A heated Gulf-front pool and two hot tubs
• Saunas and a fitness center
• A clubhouse with kitchen, game room and library
• Tennis and pickleball courts and shuffleboard
• Grills, a pavilion and a beach boardwalk
• Boat and RV storage, according to agent and rental listings
• Gated entry and a key-access lobby

A rental manager page notes the pool was closed while work continued on site. We did not find the scope or dates of that work, so ask the association.

Rules buyers ask about

Rentals

A rental management company that lists units here states that Mansions by the Sea requires a 30 night minimum for all stays, and the owner rental site describes monthly stays only. Sale listings we reviewed show annual leases, and one listing shows a 12 month lease term. One building summary describes short-term rentals as not allowed. Ask the association for the written minimum lease term, any limit on leases per year and the approval process before you rely on rental income. Our guide to short-term rental rules on the Pinellas beaches covers the city side.

Pets

Most listing records and rental listings show pets not allowed, though one building summary shows pets allowed. Confirm the current rule with the association, including how service and support animals are handled.

Parking

Listing records show assigned parking in garages and carports, with some units listing one deeded garage space and others listing several spaces, plus guest parking. Confirm which spaces convey with the unit you are considering.

Building condition and condo law

Built in 1980 and well over three stories, Mansions by the Sea falls under Florida’s milestone inspection law and the requirement to complete a structural integrity reserve study (SIRS) and fund reserves for the items it covers. Listing records refer to Building A and Building B, so ask whether the towers share one association and one set of reserves. Request:

• The milestone inspection summary for each tower, and whether a phase two inspection or repairs followed
• The most recent SIRS and the reserve funding schedule
• The current budget and annual financial statement
• Twelve to 24 months of board minutes
• Any adopted or proposed special assessments, including for concrete, balconies, roofs or the pool deck

We did not find public news reports about Mansions by the Sea specifically after Hurricanes Helene and Milton in 2024. Those storms caused widespread flooding on Treasure Island, and local news has described the city as still in recovery a year later. Ask how ground-level areas, parking, elevators and building systems were affected, how repairs were funded and whether any insurance claims remain open. Our guide to Florida condo milestone inspections, reserves and SIRS covers what to look for.

Flood and insurance

Listing records for units here show both AE and VE flood zones, so the zone can depend on the building and data source. Ask for the building’s flood zone and elevation information, the master policy declarations including wind and flood deductibles, and quotes for your own HO-6 and flood coverage early in your inspection period. Our flood zones and insurance guide explains how zones and elevation affect coverage on the Pinellas beaches.

Buying or selling at Mansions by the Sea

Value here depends on tower, floor, view direction, balcony size and renovation level. Ask us for recent sales and current listings at Mansions by the Sea, and we will compare units by floor plan and view. You can contact us here or call (727) 955-1222.

If you own here, request a home valuation or see our Treasure Island home value page. To compare other buildings in the city, browse our Treasure Island condos index.

Team Beachside is not affiliated with Mansions by the Sea Condominium or its association. Facts on this page come from public records, rental sites and listing data available as of October 2026, and listing data can be incomplete or inconsistent. Rules, fees, assessments and building conditions change. Verify all information with the association and its governing documents, and with your own inspector, insurer, lender and attorney, before you rely on it. John and Nicole Kavaliauskas are licensed Florida Realtors with LoKation Real Estate.