Aerial view of Nautilus Extension

Nautilus Extension
Homes for Sale in Miami Beach, FL

All 1,609 homes for sale in Miami Beach, FL · median $540,000 · 466 homes for sale in 33140 · Miami-Dade County homes for sale

Community in Miami Beach · Miami-Dade County · ZIP 33140
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True comps, carrying-cost math, and listings before the portals.

Built fromLive MIAMI MLS data12 years of closingsUpdated twice daily
Live · Nautilus Extension Housing Pulse MIAMI MLS + public records Analysis by Momentum Realty · $3.5B+ sold · 10,000+ customers served · Top 1% in Florida (RealTrends)
Tempo
2
Sold · last 12 mo
10-yr average: about 3 a year
Jon Brooks, founder of Momentum Realty
Jon's Current Read

NAUTILUS EXTENSION 3RD trades at a median of $2,760,000 and roughly $870.63 a square foot, but the sample behind that number is thin — just three closings in the current window. That means the median is a snapshot of whatever happened to sell, not a stable curve, and a single unusually large or unusually modest property can move it substantially.

The year-over-year figure, down 20%, should be read against that same small-sample caveat. It may reflect a genuine cooling, or simply a different mix of homes changing hands versus a year ago. A median DOM of 91 days is the more telling data point here: pricing precision matters, and homes that are priced against last cycle's numbers tend to sit.

Nearby homes for sale

No active listings inside NAUTILUS EXTENSION 3RD right now. These are the 6 closest homes on the market, by straight-line distance from the community's center; some may sit just outside its boundary.

4430 Nautilus Dr
$7.29M · 0.0 mi away
7 bd · 7 ba · 4,501 sqft
4430 Nautilus Dr
Listed by Compass Florida, LLC
4430 Alton Rd
$3.79M · 0.1 mi away
5 bd · 6 ba · 3,581 sqft
4430 Alton Rd
Listed by Coldwell Banker Realty
4470 Alton Rd
$3.90M · 0.1 mi away
2 bd · 2 ba · 2,197 sqft
4470 Alton Rd
Listed by Cervera Real Estate Inc.
4455 N Bay Rd
$3.99M · 0.1 mi away
3 bd · 2 ba · 2,417 sqft
4455 N Bay Rd
Listed by Beachfront Realty Inc
4515 N Michigan Ave
$5.95M · 0.1 mi away
4 bd · 5 ba · 3,994 sqft
4515 N Michigan Ave
Listed by BRG International , LLC
4353 Alton Rd
$3M · 0.2 mi away
4 bd · 5 ba · 3,080 sqft
4353 Alton Rd
Listed by Douglas Elliman

Listing data from the MLS feeds named on each listing page; deemed reliable but not guaranteed. Refreshed nightly.

The 60-Second Overview

This is a low-volume, high-price-per-square-foot micro-market, where each closing carries outsized weight on the reported statistics and comparisons should be made carefully.

MIAMI REALTORS sales records identify 80 homes in NAUTILUS EXTENSION that have changed hands since 2017, built between 1935 and 2024 (median 1946), with a median living area of about 2,958 sq ft and a typical 4-bedroom, 4-bath layout; 100% are single-family homes. Source: MIAMI REALTORS closed-sale history compiled by Momentum Research; counts reflect homes with a recorded MLS sale, not every home in the community.

Pre-construction details are compiled from public records, builder announcements and builder listings, and are subject to change without notice; figures are deemed reliable but not guaranteed. Momentum Research figures are our own analysis. This page describes homes, pricing and community attributes, not residents.

Best for

  • Buyers targeting a specific property in NAUTILUS EXTENSION 3RD who plan to evaluate it on its own merits, not community averages
  • Sellers with an updated, well-finished home who can tolerate a marketing timeline in the range of the 91-day median
  • Buyers or sellers comfortable working from individual comparable sales rather than a broad statistical trend

Probably not for

  • Buyers who need a deep, liquid comp set to validate an offer price with confidence
  • Sellers expecting a fast sale timeline, given the current median days-on-market
  • Anyone treating the year-over-year percentage as a reliable trend line rather than a small-sample data point

The market around Nautilus Extension

Nautilus Extension is too small for its own price trend, so here is the market around it.

In ZIP 33140, 540 homes are on the market and 12% are under contract — a slower corner of Miami Beach.

Across Miami-Dade County, 15,314 homes are active and 3,367 pending (18% under contract).

In ZIP 33140 (Miami Beach), 1,116 homes closed in the last 12 months at a median of $570K ($327/sq ft), up 3.9% year over year, with a median 70 days on market. Right now 727 active and 140 pending listings — a buyer's market. See the live ZIP 33140 housing market and the Miami-Dade County market.

ZIP and county figures describe the wider market, not Nautilus Extension specifically. Momentum Research analysis of MLS records.

If we were buying in Nautilus Extension today, this is the order of operations we would run for our clients.

1

Underwrite the condition first. Price the roof, HVAC, and systems honestly before judging any list price; condition swings value here more than square footage alone.

2

Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.

3

Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.

4

Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.

5

Keep an agent in your corner. The listing agent works for the seller; we represent you and prepare a hand-built valuation before any offer in Nautilus Extension.

Best Buy
Buyers and sellers dealing in a single, specific property rather than a broad community comp set.
Biggest Risk
With only three closings in the window, the median and year-over-year figures can shift sharply on the next sale.
Sweet Spot
Sellers with a home in strong, updated condition who are prepared for a longer marketing period near the 91-day median.
Avoid If
Avoid relying on this community's aggregate stats if you need a large, stable comp set to price with confidence.

Reading a market with few data points

With only three closings feeding the current snapshot, NAUTILUS EXTENSION 3RD does not behave like a high-volume subdivision where medians settle into a predictable band. Buyers and sellers here are better served by looking property-by-property — condition, lot, and finish level explain far more of the price than any community-wide average can.

The 91-day median days-on-market suggests this is not a market where correctly priced homes move overnight, and it is not one where overreaching on list price gets corrected quickly by competing offers. Patience and a well-supported number at listing tend to matter more than urgency.

“

The location and the amenities are priced into every listing in Nautilus Extension. The deal is won or lost on condition, the comps, and the renovation math.

Jon Brooks · Founder, Momentum Realty

Why work with Momentum here

In a market this thin on closings, the publicly available comps are not enough on their own — we track the individual transactions behind the median, not just the headline number, so pricing and offer strategy are built on the actual homes involved rather than a statistic that can swing on one sale.

Nautilus Extension in 15 seconds.

Best forBuyers and sellers dealing in a single, specific property rather than a broad community comp set.
Biggest advantagePer-square-foot pricing here reflects higher-end finish levels, giving sellers of well-appointed homes room to price accordingly.
Biggest riskWith only three closings in the window, the median and year-over-year figures can shift sharply on the next sale.
Sweet spotSellers with a home in strong, updated condition who are prepared for a longer marketing period near the 91-day median.
Avoid ifAvoid relying on this community's aggregate stats if you need a large, stable comp set to price with confidence.

HOA, CDD & Fees

A note on who we are: Momentum Realty is a real estate brokerage. We are not the Nautilus Extension homeowners association, its management company or its developer, and we cannot help with dues, gate access, violations, amenity bookings or association documents. To reach the association, check your closing package, the recorded declaration at the county clerk, or search the association’s name at sunbiz.org for its registered agent. Call or message us to buy or sell a home in Nautilus Extension.
In short
  • HOA status not on record. Verify any dues before you offer
  • Any club/amenity membership is billed separately

Confirm the current HOA dues, exactly what they cover, and any CDD bond or special assessment for a specific address before you offer.

The takeaway

Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed Nautilus Extension sales matched to your home.

What is your Nautilus Extension home worth?

Get a no-obligation home value based on real comparable sales in Nautilus Extension, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.

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Real comps, not an automated estimate.
Buyers targeting a specific property in NAUTILUS EXTENSION 3RD who plan to evaluate it on its own merits, not community averagesExcellent fit
Sellers with an updated, well-finished home who can tolerate a marketing timeline in the range of the 91-day medianExcellent fit
Buyers or sellers comfortable working from individual comparable sales rather than a broad statistical trendExcellent fit
Buyers who need a deep, liquid comp set to validate an offer price with confidenceProbably not
Sellers expecting a fast sale timeline, given the current median days-on-marketProbably not
Anyone treating the year-over-year percentage as a reliable trend line rather than a small-sample data pointProbably not

Data sources & freshness

Under-contract sharesMIAMI MLS records, as of 2026-09-20
Historical depthClosed-sale records back to 2014 (27 transactions analyzed)

Verify the primary sources yourself: Florida DOR · U.S. Census · FEMA flood maps · Citizens Property Insurance.

Momentum Research figures are our own analysis of MIAMI MLS records; MLS data is deemed reliable but not guaranteed. Methodology: how Momentum market scores are computed. Market metrics describe homes for sale and recent sales, not residents.

Own a home here?

You just read the data. Now see what your home is worth.

The numbers on this page move markets in the aggregate. The number that matters to you is what a buyer pays for your address. Momentum sells for 1.25% above the MIAMI MLS member average and 8 days faster, and we’ll price yours against live local comps.

Looking to buy here? Search homes for sale →

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Common questions about Nautilus Extension

Where is Nautilus Extension?

Nautilus Extension is a community in Miami Beach, Miami-Dade County, Florida, ZIP 33140.

Are there homes for sale in Nautilus Extension right now?

No active listings inside Nautilus Extension at the last feed refresh. The nearest homes for sale, with distances from the community, are shown on this page and refreshed nightly.

Does Nautilus Extension have an HOA or CDD?

No HOA is on record for Nautilus Extension in our data. Verify dues, what they cover, and any special assessment for a specific address before you offer.

Answers are generated from county property records, MLS feeds and the figures on this page, as of the page date; deemed reliable but not guaranteed.

Nearby Communities

Explore more neighborhoods near Nautilus Extension with Momentum Realty’s local guides.

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Browse all neighborhood guides →

Thinking of selling in NAUTILUS EXTENSION 3RD? 2 recorded closings (window ending 2026-09-20). See the Miami-Dade County sell-now-or-wait data, what made 201,552 Florida listings fail in the last 12 months, or compare a cash offer vs. listing. Compiled from MLS records; deemed reliable but not guaranteed.
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