520 S Mashta Drive

<table width="100%" cellpadding="0" cellspacing="2" bordercolor=""><tr><td colspan="4" align="center" class="celltext"><table width="100%" style="height:100%;" border="0" align="right" cellpadding="3" cellspacing="0"><tr><td width="50%" valign="top" align="center" class="textHF"></td></tr></table></td></tr><tr><td colspan="4" class="celltextBOLDcolor" align="left" valign="middle" height="25"><table width="100%" border="0" cellpadding="0" cellspacing="0"><tr><td width="85%"><h1 style="margin:0px;padding:0px 0px 0px 2px;" class="text Replace">520 S Mashta Drive, Key Biscayne, FL 33149</h1></td><td width="15%" align="right" class="text"></td></tr></table></td></tr><form name="form1" onSubmit="return(false);" id="form1"><tr><td valign="top" class="celltext" colspan="2"><div style="display:block;float:left;clear:both;position: relative;width: 99%;height: 100%; background-color: transparent;"><div class="advanced-slider" id="el-slider" ><ul class="slides" style="padding: 0px;" ><li 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height="25"></td></tr></form><tr valign="top"><td colspan="4" class="celltext notranslate"><table width="100%" border="0" cellspacing="0" cellpadding="2"><tr><td class="textBOLD Replace" width="33%"><strong>Price:</strong> <span class="pType">$19,900,000</span></td><td class="textBOLD Replace" width="33%">MLS Number: A12071221</td><td class="textBOLD Replace pType" width="33%">Single Family</td></tr></table></td></tr><tr valign="top"><td colspan="4" width="100%" class="celltext" valign="middle"><strong> Address:</strong> 520 S Mashta Drive, Key Biscayne, Florida 33149 USA</td></tr><tr valign="top"><td colspan="4" class="notranslate"><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td valign="middle" width="33%"><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td width="100%" class="celltext" valign="middle"><strong> Beds: </strong>5</td></tr></table></td><td width="2"> </td><td valign="middle" width="33%"><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td width="100%" class="celltext" valign="middle"><strong> Baths: </strong>4</td></tr></table></td><td width="2"> </td><td valign="middle" width="33%"><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td width="100%" class="celltext" valign="middle"><strong> Living Area: </strong>3,085</td></tr></table></td></tr><tr><td valign="middle" width="33%"><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td width="100%" class="celltext" valign="middle"><strong> Waterfront: </strong>YES</td></tr></table></td><td width="2"> </td><td valign="middle" width="33%"><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td width="100%" class="celltext" valign="middle"><strong> Year Built: </strong>1961</td></tr></table></td><td width="2"> </td></table><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td valign="middle" width="50%"><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td width="100%" class="celltext" valign="middle"><strong> Community: </strong>MASHTA ISLAND A REPLAT OF</td></tr></table></td><td width="2"> </td><td valign="middle" width="50%"><table width="100%" border="0" cellspacing="0" cellpadding="0"><tr><td width="100%" class="celltext" valign="middle"><strong> Subdivision: </strong>MASHTA ISLAND A REPLAT OF</td></tr></table></td></tr></table></td></tr><tr valign="top"><td colspan="4" valign="top" class="celltextBOLDcolor" height="25"></td></tr><tr valign="top"><td colspan="4" class="celltext notranslate"><div id="Table4" style="display:table; float:left; clear:both; width:100%;"><div style="display:table-cell; float:left; width:33%; height:35px;"><a href="https://www.bozenakaluza.com/megatemplate/requestinfo.asp?mls=A12071221&lp=19900000&id=3236277&language=&address=520 S Mashta Drive" style="cursor:pointer;" rel="nofollow"><img src="images/requestInfoIcon.png" alt="Request Information" class="pngfix" style="float: left; display: inline; border:0;"><span class="iconTxt"><strong>Request Information</strong></span></a></div><div style="display:table-cell; float:left; width:33%; height:35px;"><a href="https://www.bozenakaluza.com/megatemplate/custpropgrid.asp?id=3236277&mls=A12071221&language=" style="cursor:pointer;" rel="nofollow"><img src="images/saveIcon.png" alt="Save this Property" style="float: left; display: inline; border:0;" class="pngfix"><span class="iconTxt">Save this Property</span></a></div><div style="display: table-cell; width:33%; float:left; width:33%; height:35px;"><a href="javascript:;" onClick="MM_openBrWindow('emailtofriend.asp?mls=A12071221&#38;lp=19900000&#38;id=3236277&#38;language=&source=miamimls&origin=&address=520 S Mashta Drive','emailtofriend','scrollbars=yes,width=450,height=410');self.status='';return true;" style="cursor:pointer;" rel="nofollow"><img src="images/emailIcon.png" alt="Email to a Friend" class="pngfix" alt="" width="32" height="31" style="float: left; display: inline; 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height:35px;"><a href="javascript:;" onClick="MM_openBrWindow('https://www.propertypanorama.com/instaview/mia/A12071221','virtual_tour','scrollbars=yes,resizable=yes');self.status='';return true;" style="cursor:pointer;" rel="nofollow"><img src="images/virtualTourIcon.png" alt="Virtual Tour" class="pngfix" alt="" width="29" height="29" style="float: left; display: inline; border:0;"><span class="iconTxt">Virtual Tour</span></a></div><img src="images/findSimilarIcon.png" width="31" height="28" style="float: left; display: inline; border:0;"><span class="iconTxt">Find Similar Homes</span></div>--><div style="display:table-cell; float:left; width:33%; height:35px;"><a href="javascript:;" onClick="MM_openBrWindow('mortgagecalculator_pop.asp?id=3236277&#38;lp=19900000','Mortgage','scrollbars=yes,width=440,height=340');self.status='';return true;" style="cursor:pointer;" rel="nofollow"><img src="images/calculatorIcon.png" alt="Mortgage Calculator" class="pngfix" alt="" width="30" height="30" style="float: left; display: inline; border:0;"><span class="iconTxt">Mortgage Calculator</span></a></div><div style="display:table-cell; float:left; width:33%; height:35px;"><a href="https://www.bozenakaluza.com/megatemplate/showing.asp?mls=A12071221&lp=19900000&id=3236277&language=" style="cursor:pointer;" rel="nofollow"><img src="images/shceduleShowingIcon.png" alt="Schedule a Showing" class="pngfix" width="30" height="30" style="float: left; display: inline; border:0;"><span class="iconTxt">Schedule a Showing</span></a></div><div style="display:table-cell; float:left; width:33%; height:35px;"><a onClick="self.status='';return true;" href="school.asp?id=3236277&state=FL &city=Key Biscayne&zipCode=33149" style="cursor:pointer;" rel="nofollow"><img src="images/schoolInfoIcon.png" alt="School Information" class="pngfix" alt="" width="30" height="30" style="float: left; display: inline; border:0;"><span class="iconTxt">School Information</span></a></div></div></td></tr><tr valign="top"><td colspan="4" valign="middle" class="celltitlecolor" height="25"> Remarks:</td></tr><tr valign="top"><td colspan="4" class="celltext"><div class="text" id="rtext" style="text-align:justify; padding:6px;">Seize a rare opportunity to create a landmark waterfront estate on one of the largest residential lots in Key Biscayne’s exclusive Mashta Island enclave. Spanning an extraordinary 22,140 square feet, this exceptional property offers 138 feet of pristine water frontage and sweeping open water views, providing an unparalleled setting for a world class residence.Plans by renowned architect, Pablo Corazzini of Vitalini Corazzini Architects, are available to the buyer, offering a thoughtfully conceived vision that takes full advantage of the property’s remarkable scale, premier waterfront setting, and spectacular sunsets. The proposed design creates an extraordinary canvas for sophisticated indoor-outdoor living and entertaining, should the buyer choose to pursue the concept.With its exceptional lot size, expansive water frontage, and coveted Mashta Island address, this is a truly irreplaceable opportunity to create a legacy estate in one of South Florida’s most prestigious waterfront communities.</div></td></tr><tr valign="top"><td colspan="4" class="celltext"><div class="text" id="Div1" style="text-align:justify; padding:6px;"></td></tr><tr><td colspan="4" valign="top" class=""></td></tr><tr><td colspan="4" valign="top" class="celltitlecolor">Mapped Location:</td></tr><tr><td colspan="4" class="celltext" align="right" height="400" valign="middle" style="position: relative;"><div id="mapsearch" style="display: inline; float: left; clear: left; color: black; width: 99%; height: 350px;">Loading...</div></td></tr><tr valign="top"><td class="celltext" colspan="4" valign="middle"><div class="text" style="text-align:justify; padding:6px;">MIAMI Association of REALTORS&#174; is not responsible for the accuracy of the information listed above. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange Program and the South East Florida Regional MLS and is provided here for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Real estate listings held by brokerage firms other than the office owning this website are marked with the IDX logo and detailed information about them includes the name of the listing brokers. Data provided is deemed reliable but not guaranteed. Copyright MIAMI Association of REALTORS&#174;, MLS All rights reserved. This property is courtesy of Coldwell Banker Realty.</div></td></tr><tr><td colspan="6" class="celltext"> </td></tr><tr><td colspan="4" valign="top" class="celltext" align="center" style="margin:10px auto;text-align:center;"><a href="http://www.resionline.com" target="_blank"><img src="images/resilogo.png" alt="Real Estate Web Design" width="96" height="39" border="0"></a></td></tr></table><link rel="stylesheet" href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css" integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ==" crossorigin=""/><link rel="stylesheet" href="css/map.css" type="text/css" />
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Updated: Thursday, September 17, 2026

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