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The David Siddons Group Just Sold 460 N Mashta Dr in Key Biscayne
The David Siddons Group Just Sold 460 N Mashta Dr in Key Biscayne
The David Siddons Group just sold 460 N Mashta Dr in Key Biscayne for $13M. This sale represented the highest sale price since 2018 on the island. This home, located on a waterfront point lot, received two offers and went under contract just 4 days after hitting the market. This home was previously listed for over a year with another agent and did not sell. This is the second Key Biscayne property that the David Siddons Group listed and sold within 2 weeks!
460 Mashta Drive, Key Biscayne
7 bedrooms | 9 Bathrooms | 11,033 SF (Adj) | 36,072 SF Lot
Two Docks | Direct Access to the Open Ocean
LAST Asking: $15,500,000
This incredible 11,033 SF Key Biscayne waterfront mansion on a rare point lot offering direct access to the open ocean. This high-end construction is extremely private and sits on almost an acre of land, providing for expansive views over the water and the Florida State Park. This property was rebuilt in 2015 after two waterfront lots were combined.The property is a true boater’s dream with 200 SF of water frontage, 2 boat docks for large yachts and a new seawall. The completely gated Miami mansion offers 7 bedrooms, 9 bathrooms and the highest level of finishes. Some notable features include: 3 reception areas, a formal dining, an over-sized master suite w/ superb views & spectacular master bathroom, 2 large custom walk-in closets, a completely equipped state-of-the-art media room, a glass wine cellar, a 4-car garage and an advanced security system. To relax this property offers a pool as well as a gym area with sauna, steam room and tatami “study” area.
Selling Key Biscayne Real Estate with The David Siddons Group
Our Digital Marketing
Miami is a global city and buyers often come from out of town, so you don’t want to limit yourself to an agent whose reach is only hyper local; relocating is a big element and foreign buyers are a big factor. This is why we created the relocation campaigns, the annual reports and weekly blogs based on what people are searching for. 98% Of searches start online, so if you don’t have a strong digital footprint you are already behind. The best Miami listing agent is whomever has national and global reach and that is what we have to offer. Anyone can reach local buyers or the neighbors in your condo / street without any specific effort, but it takes someone with the right know-how and a large marketing budget to reach a global audience and to really get a unit sold. Local realtors sell regardless of marketing, but big agents sell because of it. Having said this, our team does work with a Key Biscayne expert (Adriana Montbrun) who works and lives on the island and who has the additional knowledge and network to get this unit sold.
Currently we attract around 25,000 visitors a month to our site and 100 new subscribers every week! This is quite simply one of the most highly trafficked real estate sites in the whole of Miami.
Our fundamental goal is to expose your property to the right audience with the right message. It is about targeting a specific audience such as investors, tax refugees or relocating families with geo-specific campaigns and the right message. As you might know these days most buyers are relocation buyers coming for the high tax states (mostly the northeast) who are looking for good quality properties in Miami’s safest areas. We know how to target these relocation buyers and how to keep them interested as we offer very specific and targeted videos and blogs. I invite you to google important search terms like “Relocating to Miami”, “The Best Miami Condos for Sale”. “The best island communities in Miami” or “The safest areas in Miami”, which is something that most relocation buyers search for before they start looking for specific real estate options. This is how the majority finds us!

Engaging with Potential Buyers
Our unique and rich information has earned us a dominant number 1 spot for almost all Miami real estate related key words in the world’s most used search engines. With our real estate reports, real estate forecasts and relocation guides we capture buyers from all over the globe who trust our opinion and who reach out to us for advice and guidance. Underpinning the strong digital footprint is the digital expertise when it comes to specific marketing campaigns. Our Funnel Campaigns, Retargeting, effective ranking on Google for long tail key phrases and geo specific adverts (to name a few) are leading large amounts of potential buyers to the site. These potential buyers have to subscribe to our site and they will receive a personal phone call as well as our e-mail blasts. As we get many new subscribers to the website I have a very large database of buyers who are actively looking for high quality homes in a very competitive market. One of the reasons I sell my properties very fast is because I pre-market them to my database and a short list of buyers I have in mind for every new listing I take on.
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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