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The 2020 Key Biscayne Real Estate Market Update for Key Biscayne Homes for Sale
The Key Biscayne Real Estate Market in 2020!

The Key Biscayne Real Estate Market in 2020
Please read below our 2020 Key Biscayne Real Estate Market Update for Key Biscayne Homes for Sale. We divided this blog into homes for sale on dry lots and waterfront lots.
Key Biscayne has undergone several changes that marked its evolution from a large coconut plantation in the first half of the 20th century, to the playground of the “Winter Elite”, to a thriving year-round exclusive community with residents from all over the world. A relatively small community, comprised of roughly 250 waterfront homes and a bit over 1,000 dry lot homes, the island, its infrastructure, homes and population, continues to evolve.
Over the last decade and taking advantage of new Village regulations and a robust global economy, we saw the 1950s Mackles’ homes being replaced by a large wave of new construction, mansions with room for big families, larger floor plans and high-end finishes, tearing down decades-old homes. Although this led to an over-supplied market and peak prices in 2015, the current market in 2020 is looking a lot healthier and is gaining much more traction from buyers.
Key Biscayne Homes for Sale on Dry Lots
The new construction frenzy of the early 2010’s transformed many original Mackle homes, selling for under $1M, into $2M, $3M, and even $4M new construction homes, leading to the 2015-2016 supply glut and pricing peak. 2018 Registered a sales volume rebound of 55 dry lot sales, followed by a significant decrease to only 32 sales in 2019, similar to the 2016/ 2017 depressed levels and pre-2010 standard sales volume.
2020 is off to a superbly strong start, consistent with Single Family Home sales across Miami-Dade and key luxury markets across the US. The market registered 33 dry lot home sales during the first seven months of 2020, marking an annualized sales volume in excess of the 55 homes sold in 2018 and consistent with the peak volume years of 2010-2015. With 60 dry lot homes currently on the market, current inventory is 13 months. This means it would take 13 months for the market to absorb all available inventory if no new listings were to enter the market. This is a good sign and signals a neutral to light buyers-market. Buyers still have a good selection across three different product tiers; on the lower end, a few redone Mackle houses built in the 50s and 60s with asking prices under $2M, larger homes built in the last two decades in regular size lots, priced between $2M $3M and Homes in larger lots in the $4M price point.
In 2019 Dry Lot homes in Key Biscayne got on average 8% discount from their last listing price and 15% from their original listing price. So far in 2020, we observe higher discounts from listing price (10%) and original listing price (16%), which likely played a role in boosting sales volume during 2020.
280 Cranwood Dr sold after being on the market for 35 days. This property was listed for $4,400,000 and sold for $3,940,000 ($774 per SF) a 10% discount on its asking price.
270 Greenwood Dr sold for $3,120,000 after several price changes. Originally listed for $3,750,000 its last listing price was $3,350,000.00. That is 17% discount on the original listing price and 7% off its last listing price.
Key Biscayne Waterfront Homes for Sale
2018 And 2019 registered 6 waterfront home sales each year, with asking prices higher than the market could bear and thus listings with many months, even years sitting in the market. In 2020, we’ve already registered 9 sales, almost triple the prior year sales volume, and consistent with Single Family Home luxury market trends across Miami-Dade. At this pace we still have 23-month inventory, or the number of months required to sell current homes for sale. A high number that positions this as a buyers-market, which means that buyers have many options to choose from across 27 incredible homes featuring fabulous locations, including ‘boater’s dream come true’ homes on prestigious Mashta Island, facing Hurricane Harbor or open bay homes with phenomenal Miami skyline views in prestigious Harbor Drive.
With 4 additional sales contracts signed in the past weeks, the market has quickly evolved from a strong buyers-market into one that can easily become neutral given recent trends.
During 2019, waterfront home sales registered 10% discount over listing price and 16% discount over original price. Listing price discounts have held steady at 10%, so far in 2020, while listings over original price have increased to 20%, likely driving the sales surge we’ve witnessed during COVID-19.
460 Mashta Dr was listed by the David Siddons Group for $15.5M. The property is currently under pending sales after receiving 2 offers in the first four days of being on the market
750 Mashta Dr has been on and off the market for almost 3 years with several price reductions. It started at $12,950,000.00 and was eventually reduced to $7,495,000. It sold $6.6M or $1,106 per SF.
FAQ
These are the most commonly Miami Real Estate Related questions
What should relocation buyers know before buying real estate in Miami?
HOME BUYERS
Relocation buyers looking at homes in Miami should understand that choosing the right house is less about the property itself and more about location, schools, and long-term value. Many buyers make the mistake of focusing on price or finishes, while the real driver of value is the neighborhood and micro-location. Older homes often represent better value, but may also be part of a future redevelopment cycle. Newer homes command premiums, but don’t always sell faster if pricing is ahead of the market. Commute time, school access, and community dynamics are critical and often underestimated. The key is to evaluate homes not just as lifestyle purchases, but as long-term assets within a very localized market.
Sources:
https://luxlifemiamiblog.com/relocating-to-miami/
https://luxlifemiamiblog.com/relocating-to-miami-with-a-family/
CONDO BUYERS:
Relocation buyers should understand that Miami is a highly segmented, building-driven market, not a uniform one. Pricing can vary significantly between similar properties depending on building quality, layout, and financial health. Many buyers assume newer construction equals better investment, but that is often not the case. Factors like HOA fees, reserves, and rental policies can materially impact long-term value and liquidity. Negotiation opportunities often exist, especially in slower segments, but require precise market knowledge. The key is to evaluate micro-markets and individual buildings, not just neighborhoods or price per square foot.
Sources:
https://luxlifemiamiblog.com/miami-real-estate-market-report/
https://luxlifemiamiblog.com/new-construction-miami-guide/
What are the best areas for relocating families with children
For families relocating to Miami with young children, the most recommended neighborhoods are Coral Gables, Coconut Grove, and Pinecrest. Coral Gables offers the best balance of top schools, safety, and long-term value. Coconut Grove is ideal for younger families seeking walkability, greenery, and a lifestyle-driven environment. Pinecrest provides larger homes, excellent schools, and better value for space, making it ideal for growing families. The key driver across all three is access to strong schools and primary residential stability. Relocation decisions are less about new construction and more about long-term livability and resale strength.
Sources:
https://luxlifemiamiblog.com/best-neighborhoods-miami/
https://luxlifemiamiblog.com/what-are-the-best-family-neighborhoods-in-miami-in-2023/
Are new construction condos in Miami a good investment?
New construction condos in Miami can be a good investment—but only if you understand that not all buildings perform the same. According to the David Siddons Group, many buyers assume “new = better,” but in reality, performance depends on pricing, layout, building quality, and long-term demand. Some new developments set future price benchmarks and can drive long-term appreciation, especially in top-tier projects. However, many are priced aggressively at launch, and buyers relying on marketing instead of data often overpay.
The market is highly segmented, meaning two new buildings next to each other can perform very differently.
The best opportunities typically come from selecting the right building early or negotiating correctly in later phases.
In short: new construction is not automatically a good investment—it becomes one only with building-level analysis and disciplined entry pricing.
Sources:
https://luxlifemiamiblog.com/how-to-buy-a-luxury-condo-in-miami/
https://luxlifemiamiblog.com/category/independent-new-construction-condo-reviews/
https://luxlifemiamiblog.com/beyond-clickbait-real-insights-into-miamis-luxury-condo-market/
Why is buying a Miami condo riskier than buyers think?
Buying a Miami condo is often riskier than buyers expect because the true risks are at the building level—not visible in the listing price. Many buyers focus on finishes and views, while overlooking HOA reserves, insurance exposure, and potential special assessments. In reality, two identical units in different buildings can perform completely differently over time. Rising HOA fees and stricter regulations are also increasing the true cost of ownership, especially in older buildings. Liquidity can be affected by factors like financial health, rental policies, and ongoing repairs. The key risk is not the condo itself—but buying into the wrong building without proper due diligence.
Sources:
https://luxlifemiamiblog.com/how-to-buy-a-luxury-condo-in-miami/
https://luxlifemiamiblog.com/miami-condo-market-risks/
What are Miami's Safest Areas?
Which Miami Areas Still offer Great Value (Budget Friendly alternatives to Coral Gables and Pinecrest)
If you’re looking for better value than Coral Gables or Pinecrest, the answer (in true Siddons style) is not “go cheaper”—it’s go one layer outside the obvious markets.
The strongest value plays are:
- Schenley Park → closest substitute to Coral Gables at ~20% discount while maintaining similar character and location
- Biltmore Heights → almost identical feel to the Gables but ~25–30% cheaper on a $/SF basis
- Glenvar Heights → central location with larger lots and ~25% pricing advantage vs South Miami/Gables
- Baptist / Galloway (Kendall) → Pinecrest-style living (space, schools, land) at up to ~30% lower pricing
The pattern is consistent:
👉 Buyers are shifting west and slightly off-market to gain land, scale, and pricing efficiency. You don’t find value by going to a “cheaper neighborhood”—you find it by identifying adjacent micro-markets that offer the same lifestyle fundamentals without the brand premium.
Sources:
https://luxlifemiamiblog.com/best-value-neighborhoods-miami/
https://luxlifemiamiblog.com/category/miami-neighborhoods/
Is NOW a good time to buy in Miami?
Are Miami real estate prices going down in 2026?
No—but that’s the wrong way to look at it. Miami is not one market anymore, so prices are not moving in one direction. In 2026, the market is split into two: ultra-luxury, scarcity-driven areas (like waterfront and top-tier neighborhoods) are still holding or even rising, while mid-tier condos and oversupplied segments are flat or correcting. What we’re seeing is price divergence, not a crash—some properties are gaining value while others are quietly adjusting downward. Rising inventory and more selective buyers are putting pressure on pricing in certain segments, especially older condos or buildings with weaker fundamentals.
At the same time, global wealth and cash buyers continue to support pricing at the top end of the market. So the real answer: prices aren’t broadly dropping—they’re being repriced based on quality, location, and supply.
Should I buy a house or a condo when relocating to Miami?
The decision comes down to lifestyle first, investment second—and most relocation buyers get that backwards. If you want space, privacy, schools, and long-term family living, a single-family home in areas like Coral Gables or Coconut Grove is typically the stronger choice. If you prioritize walkability, low maintenance, and proximity to business districts, a condo in Brickell or waterfront markets makes more sense.
From an investment perspective, homes tend to be more stable, while condos are more building-dependent and cyclical. Most relocation clients underestimate how much building quality, HOA structure, and future costs impact condo performance. The right answer isn’t “house vs condo”—it’s which asset fits your lifestyle AND holds value within its micro-market.
How do I choose the right Miami neighborhood for my lifestyle?
Why are Miami condo prices so different between buildings?
Miami condo pricing varies widely because value is determined at the building level, not just by location. Two buildings next to each other can have major differences in financial health, reserves, HOA fees, and management quality. Buyers also pay premiums for better layouts, views, amenities, and newer construction—but not all “new” buildings perform equally. Factors like rental policies, upcoming assessments, and building reputation can significantly impact resale value. This is why price per square foot alone is misleading in Miami’s condo market. The real driver of value is how that specific building competes within its micro-market over time.
Sources:
https://luxlifemiamiblog.com/how-to-buy-a-luxury-condo-in-miami/
https://luxlifemiamiblog.com/category/independent-new-construction-condo-reviews/
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