354 FORTALEZA Old San Juan, PR $ 2,950,000
354 FORTALEZA
$ 2,950,000
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354 FORTALEZA

Old San Juan, PR, 00901
$ 2,950,000
Baths0.0 Sq 8,153

Monthly Estimate*

$ 18,404

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Studio

Multi-Family Home for sale in Old San Juan, PR

for $2,950,000. This 8,153 square foot home was built in 1900 on a lot size of 0.07.

HERITAGE COMMERCIAL PROPERTY ON FORTALEZA STREET. Just steps from Plaza Colón, at the gateway to Old San Juan, this heritage commercial property embodies the city’s historic pulse and cultural vitality. Positioned on the Eastern end of the iconic Fortaleza Street, one of the city’s most bustling thoroughfares, this historic mixed-use building is surrounded by eateries, boutiques and specialty shops, with the city’s main parking garages less than a block away. This stretch of Fortaleza runs adjacent to Plaza Colón, which remains one of San Juan’s most emblematic squares. Historic landmarks like Teatro Tapia and the Antiguo Casino Español form the plaza’s perimeter, while a marble statue of Christopher Columbus rises at its center. This storied setting situates the property within the cultural and civic heart of the old city, where heritage and daily life converge. Floor-to-ceiling glass windows decorate the building’s façade and reveal over 3,000 square feet of open-plan space. Currently curated as an art gallery, the first level of the building features soaring beamed ceilings, modern lighting, and central air conditioning. Sweeping arches lead to a dramatic interior patio and a central atrium that extends vertically through the height of the building. Enclosed in glass, this imposing architectural feature bathes every floor with natural light, while shielding the interiors from direct exposure to the elements. The main stairwell runs parallel to the central atrium, while a secondary stairwell provides direct access to the second and third levels from the street. A contemporary office space awaits on the second level with five main offices and a generous reception area, as well as a spacious executive suite that doubles as a conference room and opens to an enchanting balcony with views of Fortaleza Street. The third level, which has been brought to shell condition, is a blank canvas awaiting transformation into a private residence, creative studio or additional commercial space. Natural light pours in from the central atrium, while a generous terrace provides additional outdoor space. Above it all, a sweeping rooftop crowns the property, offering privileged city views and the opportunity to develop additional space for entertaining guests or hosting private events. Offering a rare combination of historic character and functional design, this building stands out as one of Old San Juan’s most versatile mixed-use properties and provides a singular opportunity for investors, entrepreneurs, and visionaries, to steward one of Fortaleza’s defining addresses into its next era.

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Multi-Family Active

Price

$ 2,950,000

Bedrooms

Studio

Property Type

Multi-Family

Taxes

$ 3,487

Style

Triplex

Lot Size

0.07

Year Built

1900

Town/City

Old San Juan

County/Region

San Juan

MLS | Web ID

PR9116790

Features
Interior
Interior Amenities high ceilings open floorplan skylight(s)
Flooring marble terrazzo
Furnished Y/N negotiable
Air Conditioning Y/N yes
Heating Y/N no
Fireplace Y/N no
Laundry Features none
Total Bedrooms 0
Total Baths 0
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General
Sewer public sewer
Heating none
Cooling central air
Utilities bb/hs internet available electricity connected natural gas available water connected
Roof concrete
Zoning c3
Construction Materials concrete other
Year Built 1900
Levels three or more
Property Subtype triplex
Tax Year 2025
Ownership fee simple
County san juan
New Construction no
Property Type residential income
HOA N
Subdivision Name old san juan
Garage Y/N no
Status active
Directions from lmm int'l airport take pr26/baldorioty de castro west towards old san juan. cross the bridge and continue along pr25r into old san juan. park in any one of the parking garages and walk to the p
City old san juan
Number Of Units Total 3
MLS Area 00901 - san juan
Lot Size Units square feet
Lot Size Square Feet 3261
Carport Y/N no
Land Lease Y/N no
Tax Annual Amount 3487
Additional Parcels Y/N no
Virtual Tour https://my.matterport.com/show/?m=f917ygstych
Building Area Units square feet
Living Area Units square feet
Standard Status active
Occupancy Type vacant
Water Access Y/N no
Additional Rooms loft
Water View Y/N no
Flood Zone Code x
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Exterior
Exterior Amenities balcony courtyard hurricane shutters
Lot Features historic district
Water Source public
Lot Size Area 3261
Foundation Details slab
Number of Buildings 1
Lot Size Acres 0.07
Road Surface Type paved
Private Pool no
Waterfront Y/N no
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Internal Only
Street Number 1 354
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* Excluded Features
List By
Bouret Real Estate

Broker

bouretpr@gmail.com

Email

Affordability Calculator

$18,695
Per Month
98%
2%
0%
Monthly Principal & Interest
$18,404
Monthly Property Taxes
$291
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
266288 Elementary School
265661 Middle School
Unknown High School High School
Pricing History
DatePricePrice ChangeDescription
10/19/2025$2,950,000 Listed Price

Map


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354 FORTALEZA, Old San Juan, PR, 00901 is a Multi-Family Home for sale at $2,950,000 with 8,153 sqft and a lot size of 0.07. 354 FORTALEZA is a studio with 0.0 baths and was built in 1900. The property's zip code is 00901 which is in Old San Juan, PR