Active$215,000
CII 8 NE PUERTO NUEVO, 1203
SAN JUAN, PR 00920
4 beds1 bath700 sqft
Active · Condo
664 CALLE UNION
SAN JUAN, PR 00907
Beds
0 beds
Baths
1 bath
Area
405 sqft
CondoBuilt 196614,000 sqft lotNoneWall/Window Unit(s)$556/sqft12 days on market
Location
About this home
Excellent opportunity for investors or first-time homebuyers! Cozy studio on the 7th floor of Condominio Unión Norte, in the heart of the historic and cultural district of Miramar. The property allows short-term rentals (Short-Term Rental / Airbnb) and currently has a long-term tenant until November 2026, generating immediate cash flow. Unbeatable location with maximum walkability in one of San Juan's most sought-after urban areas. The apartment features a studio-style design optimized to make use of every square foot, combining a sleeping area with a living room or workspace layout. Comfortable, practical, and functional kitchen with good storage capacity and space for essential appliances. Independent bathroom with functional finishes and proper ventilation flow. Prime mid-level position offering abundant natural light, a fresh cross breeze, and pleasant views of the Miramar skyline. The building features a 15,300-gallon water cistern, a power generator for common areas, a common area laundry on the ground floor, and parking is on a first-come, first-served basis. The apartment has an active contract with a long-term tenant through November 2026, ensuring returns from the day of closing. The condominium permits short-term rentals, allowing the new owner to diversify their rental strategy or use it as an urban *pie-à-terre* according to their needs. Condominio Unión Norte reflects the modern evolution and vertical growth that transformed the historic Miramar sector in the mid-20th century. Following the passage of the Puerto Rico Condominium Law (1958), Miramar began a major transition from traditional Creole mansions to exclusive high-density residential towers. Built between 1964 and 1967, this 11-story tower stands out for its solid reinforced concrete structure, a classic of modern San Juan residential architecture designed to give ventilation and durability. Its name pays tribute to Calle Unión, a historic street that ends near the legendary Union Club and architectural landmarks such as the Capilla de Nuestra Señora de Lourdes. The Miramar area stands out for its unique combination of residential tranquility, vibrant architecture, and pedestrian access to the best of San Juan, featuring top-tier gastronomy just steps away from bistros, specialty coffee shops, artisan pizzerias, and renowned restaurants along Ponce de León Ave. and Calle Cuevillas. The condominium is a few minutes' walk from MADMi (Miramar Museum of Art and Design), local galleries, and community cultural events. It is also close to District T-Mobile, the Puerto Rico Convention Center, art house cinemas, and the Condado Lagoon for activities like kayaking and paddleboarding. Ultra-walkable environment surrounded by supermarkets, pharmacies, banks, and transit hubs, with quick access to Old San Juan, Condado, and Hato Rey.
Facts & features
Interior
- Bedrooms
- 0
- Bathrooms
- 1
- Living area
- 405 sqft
- Heating
- None
- Cooling
- Wall/Window Unit(s)
- Flooring
- Ceramic Tile
- Stories
- 11
- Features
- Ceiling Fans(s), Open Floorplan, Solid Surface Counters, Solid Wood Cabinets
- Appliances
- Electric Water Heater, Freezer, Microwave, Range, Refrigerator
Exterior & lot
- Lot size
- 14,000 sqft (0.1 ac)
- Roof
- Concrete
- Construction
- Concrete
- Exterior
- Hurricane Shutters
Financial
- Annual tax
- $615 (2025)
- Price / sqft
- $556/sqft
Utilities
- Water
- Public
- Sewer
- Public Sewer
- Utilities
- Electricity Connected, Sewer Connected, Water Connected
Property
- Property type
- Condo
- Year built
- 1966
- Subdivision
- SANTURCE NORTE
- County
- San Juan
Listing
- Status
- Active
- Days on market
- 12 days
- MLS #
- MFR805082203
- Source
- Stellar MLS
Listed by Andres Diaz Diaz · VIDA URBANA
Listing data provided by Stellar MLS. Information deemed reliable but not guaranteed.
Estimate your monthly cost
PITI + HOAEstimated monthly payment$1,189/mo
- Principal & interest
- $1,138/mo
- Property tax
- $51/mo
- Home insurance
- Left out until you enter a quote
Opens at 20% down over 30 years at 6.5%, the same assumptions as the answers below. Property tax is this listing's own 2025 bill. Insurance is left out until you enter a quote, because Florida premiums turn on roof age, elevation and carrier. Every field is editable.
Ask about this property
Answered from this listing’s own figures and the sales around it.
Similar homes nearby
Homes for sale in SAN JUAN within the same price band.
Price history
From the property’s MLS record.
| Date | Event | Price | Change |
|---|---|---|---|
| Sep 9, 2026 | Listed | $225,000 | — |
Neighbourhood
The schools below come from the MLS record for this home. Walking, transit and cycling figures for SAN JUAN, PR are not connected yet, so this page does not show them.
Elementary school
Not listed
Not named in the MLS record for this home
Middle school
Not listed
Not named in the MLS record for this home
High school
Not listed
Not named in the MLS record for this home
Frequently asked questions
What would 664 CALLE UNION, SAN JUAN cost per month?
About $1,189 a month: $1,138 principal and interest, $51 property tax. That assumes 20% down at 6.5% over 30 years, and leaves out insurance.
Is 664 CALLE UNION, SAN JUAN priced fairly?
Comparable homes nearby put it between $329,758 and $379,398, with $354,578 in the middle. Those are asking prices, not closed sales: 8 properties of the same type within three miles, each within 20% of this one's size and a bedroom either way, at a median of $876 a square foot.
How does 664 CALLE UNION, SAN JUAN compare to nearby homes?
8 comparable properties within three miles. The nearest: 602 FERNANDEZ JUNCOS, SAN JUAN, PR at $327,000, 370.25 sq ft, 0.21 miles away; 600 FERNANDEZ JUNCOS, SAN JUAN, PR at $205,000, 443 sq ft, 0.21 miles away; 1035 ASHFORD AVENUE, SAN JUAN, PR at $390,000, 464 sq ft, 0.6 miles away.
How long has 664 CALLE UNION, SAN JUAN been on the market?
2 days on the market.
Has the price of 664 CALLE UNION, SAN JUAN changed?
The price has not moved since it was listed.
How big is 664 CALLE UNION, SAN JUAN?
0 bed, 1 bath, 405 square feet. That is $556 a square foot.
What year was 664 CALLE UNION, SAN JUAN built?
Built in 1966.
What is the HOA fee at 664 CALLE UNION, SAN JUAN?
The feed lists no association fee for this property.
What are the property taxes at 664 CALLE UNION, SAN JUAN?
Property tax works out to about $51 a month, $615 a year, on the 2025 assessment.
Is 664 CALLE UNION, SAN JUAN still available?
It is still on the market.