# 690 Warren Ln, Key Biscayne, FL 33149

> **TL;DR:** 4bd/4ba single family, $5,478,000 ($1544/sqft), built 2000, 3,549 sqft.
> Pool, Hardwood, A/C. Est. $29,298/mo.

## Property at a Glance

| Attribute | Value |
|-----------|-------|
| Price | $5,478,000 |
| Price/sqft | $1544 |
| Bedrooms | 4 |
| Bathrooms | 3 full, 1 half |
| Square Feet | 3,549 |
| Year Built | 2000 |
| Lot Size | 8,011 sqft (0.18 acres) |
| Stories | 2 |
| Property Type | Single Family (Single Family Residence) |
| Status | Active |
| Days on Market | 0 |

## Why This Home Stands Out

- **Pool** - Pool listed; type not specified
- **Hardwood Floors** - Hardwood flooring listed

## Estimated Monthly Costs

| Category | Amount |
|----------|--------|
| Principal & Interest (20% down, 30-year at 6.5%) | $27,700 |
| Estimated Insurance | $1,598 |
| **Total** | **$29,298** |

## Nearby Schools

- **Elementary:** Keybiscayne
- **Middle:** Ponce De Leon
- **High:** Coral Gables

## Key Amenities

- Pool
- Hardwood
- A/C

## Property Highlights

- Built in 2000
- 0.18 acre lot
- 2 stories
- Private pool

## Description

### Agent Description
A truly exceptional Miami Modern Tropical residence set on a prime 8,010 SF corner lot, offering 3,549 SF of beautifully curated living space with 4 bedrooms and 3.5 bathrooms. Designed by architect Hervin Romney, a founding member of Arquitectonica, the home reflects a distinctive architectural vision inspired by the organic principles of Frank Lloyd Wright and the expressive forms of Antoni Gaudi, where art, design, and nature seamlessly converge. This residence captivates with its abundance of natural light, soaring high ceilings, fluid open spaces, and harmonious lines that create a sense of warmth, sophistication, and effortless flow throughout the main living areas. The beautifully remodeled kitchen and bar are a true centerpiece, featuring high-end appliances, premium finishes, refined craftsmanship, and a design that balances functionality with striking aesthetics. Step outside into your own private tropical retreat, where lush landscaping, graceful curved terraces, and a stunning swimming pool create an atmosphere of tranquility and escape. This outdoor sanctuary is perfect for both relaxation and entertaining. As an added privilege, the property includes membership to the Key Biscayne Beach Club, offering exclusive access to one of Miami's most coveted coastal lifestyles. Key Biscayne is renowned for its pristine beaches, charming restaurants, and vibrant yet relaxed atmosphere-delivering a true island lifestyle just minutes from the city.

## Location

- **Address:** 690 Warren Ln, Key Biscayne, FL 33149
- **County:** Miami-Dade
- **Neighborhood:** BISCAYNE KEY ESTATES
- **Coordinates:** 25.688743, -80.169267
- **Google Maps:** https://www.google.com/maps?q=25.688743,-80.169267

## Virtual Tour & Media

- **Video Tour:** https://vimeo.com/1226691966?share=copy&fl=sv&fe=ci

## Listing Agent

- **Name:** Brigitte Nachtigall · **License:** 0542022
- **Brokerage:** One Sothebys International Realty
- **Phone:** 3057109664
- **Broker Phone:** (305) 666-0562
- **Listing URL:** [View original listing](https://www.realtor.com/realestateandhomes-detail/690-Warren-Ln_Key-Biscayne_FL_33149_M62385-87655?f=listhub&s=MAORFL&m=A12010108&c=propsimple)

## Photos

![690 Warren Ln - Photo 1](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2929919206r.jpg)

![690 Warren Ln - Photo 2](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f4065068748r.jpg)

![690 Warren Ln - Photo 3](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f1894913112r.jpg)

![690 Warren Ln - Photo 4](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3658240772r.jpg)

![690 Warren Ln - Photo 5](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2557169723r.jpg)

![690 Warren Ln - Photo 6](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f1032664375r.jpg)

![690 Warren Ln - Photo 7](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2137294234r.jpg)

![690 Warren Ln - Photo 8](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2066414323r.jpg)

![690 Warren Ln - Photo 9](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2529699778r.jpg)

![690 Warren Ln - Photo 10](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3081379526r.jpg)

![690 Warren Ln - Photo 11](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2205134332r.jpg)

![690 Warren Ln - Photo 12](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f491987788r.jpg)

![690 Warren Ln - Photo 13](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f95746394r.jpg)

![690 Warren Ln - Photo 14](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3113630629r.jpg)

![690 Warren Ln - Photo 15](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2063007317r.jpg)

![690 Warren Ln - Photo 16](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f139058326r.jpg)

![690 Warren Ln - Photo 17](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2661476886r.jpg)

![690 Warren Ln - Photo 18](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3012395174r.jpg)

![690 Warren Ln - Photo 19](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f126407134r.jpg)

![690 Warren Ln - Photo 20](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f455132109r.jpg)

![690 Warren Ln - Photo 21](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2398013469r.jpg)

![690 Warren Ln - Photo 22](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3503596351r.jpg)

![690 Warren Ln - Photo 23](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f671081092r.jpg)

![690 Warren Ln - Photo 24](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f1590363437r.jpg)

![690 Warren Ln - Photo 25](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3308688165r.jpg)

![690 Warren Ln - Photo 26](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3129955897r.jpg)

![690 Warren Ln - Photo 27](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2707313940r.jpg)

![690 Warren Ln - Photo 28](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2638681417r.jpg)

![690 Warren Ln - Photo 29](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f908215288r.jpg)

![690 Warren Ln - Photo 30](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f1850628813r.jpg)

![690 Warren Ln - Photo 31](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2425426769r.jpg)

![690 Warren Ln - Photo 32](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f1086668632r.jpg)

![690 Warren Ln - Photo 33](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2692749203r.jpg)

![690 Warren Ln - Photo 34](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f160763842r.jpg)

![690 Warren Ln - Photo 35](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f2372856581r.jpg)

![690 Warren Ln - Photo 36](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f714501666r.jpg)

![690 Warren Ln - Photo 37](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3504342450r.jpg)

![690 Warren Ln - Photo 38](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f306338578r.jpg)

![690 Warren Ln - Photo 39](http://lh.rdcpix.com/78ed094f9b9a47b7e508232e0f423925l-f3526500125r.jpg)

---

**MLS#:** A12010108 | **Updated:** 2026-09-14
**Source:** listhub

*Copyright © 2026 Miami REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.*

[View on PropertySimple](https://www.propertysimple.ai/listing/690-warren-ln-key-biscayne-fl-33149-12010108)

---

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        "value": "Driveway"
      },
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      },
      {
        "@type": "LocationFeatureSpecification",
        "name": "Air Conditioning",
        "value": true
      },
      {
        "@type": "LocationFeatureSpecification",
        "name": "Hardwood Floors",
        "value": true
      }
    ],
    "additionalProperty": [
      {
        "@type": "PropertyValue",
        "name": "Lot Size",
        "value": "0.18 acres"
      },
      {
        "@type": "PropertyValue",
        "name": "Stories",
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      },
      {
        "@type": "PropertyValue",
        "name": "Property Subtype",
        "value": "Single Family Residence"
      }
    ]
  },
  "offers": {
    "@type": "Offer",
    "@id": "https://www.propertysimple.ai/listing/690-warren-ln-key-biscayne-fl-33149-12010108#offer",
    "url": "https://www.propertysimple.ai/listing/690-warren-ln-key-biscayne-fl-33149-12010108",
    "price": 5478000,
    "priceCurrency": "USD",
    "businessFunction": "http://purl.org/goodrelations/v1#Sell",
    "availability": "https://schema.org/InStock",
    "seller": {
      "@id": "https://www.propertysimple.ai/listing/690-warren-ln-key-biscayne-fl-33149-12010108#agent"
    }
  },
  "provider": {
    "@type": "Person",
    "@id": "https://www.propertysimple.ai/listing/690-warren-ln-key-biscayne-fl-33149-12010108#agent",
    "name": "Brigitte Nachtigall",
    "telephone": "3057109664",
    "worksFor": {
      "@type": "Organization",
      "@id": "https://www.propertysimple.ai/listing/690-warren-ln-key-biscayne-fl-33149-12010108#brokerage",
      "name": "One Sothebys International Realty",
      "telephone": "(305) 666-0562"
    }
  }
}
```