$8,500,000
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.
The lines below are derived automatically from this listing’s own data and the area’s recorded deed transfers. They are not a personal opinion or investment advice.
How to read this comparison: the figure on the left is an asking price, while the one on the right is a closed sale median — the two are not the same thing, and the room to negotiate sits inside that gap. The median covers every property type and size in those ZIP codes; it carries no adjustment for a single listing’s floor, view, age or finishes. This box is not an appraisal.
Scope: ZIP codes 33134, 33146 · arm’s-length sales recorded by the Miami-Dade County Property Appraiser.
Estimated monthly loan payment based on this listing's price. Adjust the down payment, rate and term to match your own terms.
6.76% — Freddie Mac PMMS (FRED) current mortgage rates, 30-year fixed, conforming. Priced September 10, 2026.
Foreign buyers are typically asked for 30–40% down, at rates 1–2 points above what US citizens pay. The rate above is the US-citizen product — enter your own rate if you know your terms.
Principal and interest only; property tax, insurance and HOA dues are NOT included. This is not a binding offer.
Compass Florida, LLC
Listing data provided by the Southeast Florida MLS (MIAMI REALTORS®) IDX feed. Copyright Southeast Florida Multiple Listing Service © 2026. 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.
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