How much is 418 Castania Avenue?

418 Castania Avenue is listed at $8,500,000, which is about $2,048 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.

What are the property taxes on 418 Castania Avenue?

The listing reports annual property taxes of $24,508 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.

When was 418 Castania Avenue built?

418 Castania Avenue was built in 2026 and the listing describes its condition as new construction. Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.

How long has 418 Castania Avenue been on the market?

418 Castania Avenue has been listed for 61 days. Days on market and price changes are the first signals of how much room there is to negotiate.

Which schools serve 418 Castania Avenue?

The MLS lists George Washington Carver (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.

How do I see 418 Castania Avenue?

Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.

418 Castania Avenue, Coral Gables, FL 33146

$8,500,000 · Active

4 beds
5.5 baths
4,150 sq ft
61 days on market
Single Family Residence
Built 2026
New Construction
Lot 10,018.8 sq ft
2 garage spaces
Miami-Dade County
MLS# A12085251
C Gab Riviera Sec Pt 2 Re

Photo 1 at 418 Castania Avenue, Coral Gables

Photo 2 at 418 Castania Avenue, Coral Gables

Photo 3 at 418 Castania Avenue, Coral Gables

Photo 4 at 418 Castania Avenue, Coral Gables

Photo 5 at 418 Castania Avenue, Coral Gables

Photo 6 at 418 Castania Avenue, Coral Gables

Photo 7 at 418 Castania Avenue, Coral Gables

Photo 8 at 418 Castania Avenue, Coral Gables

About this home

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.

Video Tour

Watch the video tour of 418 Castania Avenue

Features

Built-in Features
Closet Cabinetry
Built-in Barbecue
Lighting
Heated
In Ground

Schools

Elementary: George Washington Carver
Middle: Ponce De Leon
High: Coral Gables

Presented by

BreakThru Realty · (786) 914-1017

Courtesy of

Compass Florida, LLC · mlsfl@compass.com · Listing agent: Monica B Slodarz

All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by BeachesMLS. Listings held by brokerage firms other than BreakThru Realty carry the name of the listing broker.

Schedule a showing

Call or text BreakThru Realty at (786) 914-1017 or email sales@breakthrurealty.com to see 418 Castania Avenue.

Before You Make an Offer

Buying new construction from a builder

How buying a home in South Florida works

Your Buyer May Already Be Working With BreakThru Realty

Buyers come to BreakThru Realty searching for homes like this one, and many have shared their exact requirements with us: the neighborhood, the price, the bedrooms, the pool, the timing. If you own a home nearby and are weighing a sale, a broker can check it against those requirements before you list, and if no buyer on file fits, show you how we would reach the rest of the market.

BreakThru Realty works with hundreds of prequalified buyers searching for properties. Before you list, a broker reviews what you own, the market around it and whether an existing buyer's requirements match. If none does, you see how we would position it to reach other qualified buyers.

Find Out If We Have Your Buyer · Discuss Selling With BreakThru Realty

A potential match is a conversation, not an offer, until the buyer sees your property and makes one. No buyer is named and nothing about your property or business is shared until you decide to proceed.

Questions About 418 Castania Avenue

How much is 418 Castania Avenue?: 418 Castania Avenue is listed at $8,500,000, which is about $2,048 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.
What are the property taxes on 418 Castania Avenue?: The listing reports annual property taxes of $24,508 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.
When was 418 Castania Avenue built?: 418 Castania Avenue was built in 2026 and the listing describes its condition as new construction. Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.
How long has 418 Castania Avenue been on the market?: 418 Castania Avenue has been listed for 61 days. Days on market and price changes are the first signals of how much room there is to negotiate.
Which schools serve 418 Castania Avenue?: The MLS lists George Washington Carver (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.
How do I see 418 Castania Avenue?: Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.
To request a tour, call (786) 914-1017 or email sales@breakthrurealty.com.

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The 5 bedroom home at 475 Amalfi Avenue, Coral Gables, FL 33146 is comparable and listed for sale at $7,250,000. Another comparable home, 1220 S Alhambra Circle, Coral Gables, FL 33146, sold for $5,750,000 in October 2026. Other Coral Gables neighborhoods include Granada Section and Biltmore Section. Nearby ZIP codes include 33134 and 33133. This property also neighbors Coconut Grove, South Miami, and West Miami. Compare it with the Coral Gables housing market report.