C GAB RIVIERA SEC PT 2 RE
418 Castania Ave, Coral Gables FL 33146
4 beds · 5.5 baths · 4,150 ft²
$8,500,000
Est. Payment $45,241/mo
4
Bedrooms
5.5
Bathrooms
4,150
Sq. Ft.
2026
Year Built
2
Garage
0
Days on Market
Description
Beneath a canopy of century-old oaks, 418 Castania redefines design-led living in Coral Gables. Conceived from the ground up by The Art of Design Development, architecture, construction, and interiors were envisioned as one cohesive narrative. Set on a 10,000 SF lot, this 4,150 SF under AC residence (5,360 total SF) offers 4 bedrooms plus den and 5.5 baths across two levels. Expansive impact glass frames mature front and rear oaks, filling the home with natural light and creating a seamless indoor-outdoor connection. Interiors feature European oak flooring, marble bathrooms, bespoke millwork, custom vanities, European doors, a floating solid-wood staircase, and imported brick accents. The kitchen includes Molteni & Dada cabinetry, La Cornue range, Gaggenau oven, Sub-Zero refrigeration, and Watermark fixtures, while a dedicated bar features Studio Ore brass fixtures. 11-foot ceilings, Legrand switches, a universal Tesla charger, and an air-conditioned 2-car garage complete the interior. Outdoors, an Ocean Reef shell-stone terrace and pool deck, Bonfire summer kitchen, fireplace, covered terraces, pool, and lawn create a private setting for entertaining. Minutes from Coconut Grove, top schools, dining, and cultural destinations.
Facts
- MLS#
- A12085251
- Subdivision
- C GAB RIVIERA SEC PT 2 RE
- Property Type
- Residential
- Property Sub Type
- Single Family Residence
- Year Built
- 2026
- Lot Size
- 10,000 ft²
- Sq. Ft.
- 4,150 ft²
- Sq. Mt.
- 386 m²
- Price per sq. ft.
- $2,048/ft²
- Price per sq. mt.
- $22,021/m²
- Stories
- —
- Garage
- 2 spaces
- Pool
- —
- Days on Market
- —
- Listed
- Sep 8, 2026
- Last Updated
- Sep 8, 2026
- Price/Lot Sq.Ft.
- $850/ft²
Comparable homes
Same ZIP, similar price + bedrooms.
SOLD$8,250,000
5 bd · 6 ba · 6,299 sqft
6636 Riviera Dr, Coral Gables FL 33146

$7,550,000
5 bd · 6 ba · 4,208 sqft
4041 S Le Jeune Rd, Miami FL 33146
SOLD$7,100,000
5 bd · 6 ba · 5,506 sqft
4320 Santa Maria St, Coral Gables FL 33146
SOLD$9,990,000
5 bd · 5 ba · 4,462 sqft
6670 Riviera Dr, Coral Gables FL 33146
SOLD$6,800,000
5 bd · 7 ba · 5,579 sqft
5724 Riviera Dr, Coral Gables FL 33146
Market insights for Coral Gables
Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.
Sellers market
September 2026
27
Median days to sold
+4.5%
1-year price forecast (est.)
Price & tax history
From the live MIAMI MLS feed. Older history requires the ListingHistory resource (not yet enabled).
| 9/8/2026 | Listed for sale | $8,500,000 |
History reflects fields present on the live MLS record. Full multi-year history requires the MIAMI ListingHistory resource (not yet enabled).
Location
Estimated Monthly Payment
$52,474/mo
Principal & Interest
$45,241
Property Tax
$7,083
Insurance
$150
HOA
$0
Estimates only. Actual payment depends on credit, lender, insurance carrier, and FL/Miami-Dade specifics. Contact Rangely for a precise quote.
The data relating to real estate for sale on this website comes in part from the Southeast Florida Multiple Listing Service. MLS Data is deemed reliable, but is not guaranteed accurate by MIAMI REALTORS®.
Accuracy of listing information is not guaranteed. Listing information is provided for personal consumer, non-commercial use, solely to identify potential properties for potential purchase. All other use is strictly prohibited and may be a violation of federal and state law.
Copyright Southeast Florida MLS a/k/a SEFMLS © 2026.
Updated within 24 hours
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