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Single-family · Big Pine Key · Monroe County

31357 Avenue C, Big Pine Key

One 3-bedroom / 2-bath home with 1,451 living SF. The broker says the home needs work and updating and is sold as-is, on two fenced lots. This is a condition-based renovation lead; no short sale, bank ownership or foreclosure is substantiated. Rent, rehabilitation budget and insurance are unknown.

Recorded status: Broker page reported active; recheck availability. Checked: .

Dated listing record · recheck availability and legal unit count.

Asking price
$748,516

Monthly rent · Scenario: Not reported

Unit mix & possession

One single-family residence offered: 3 bedrooms / 2 baths. Two advertised lots do not establish a second dwelling or additional buildable entitlement.

Reported units
1
Reported listing area
1,451 sq ft
Reported year built
1987
Asking / reported sq ft
$516
Reported 2025 tax / year
$5,341

Historical tax is the seller’s bill; buyer taxes can change.

SIEARN TAKE

Why we’re tracking it

An explicitly as-is renovation lead at $748,516. A profitable project is unproven until condition, legal use, insurance and all project costs are known.

LISTING AGENT’S DESCRIPTION · SUMMARY

One single-family residence offered: 3 bedrooms / 2 baths. Two advertised lots do not establish a second dwelling or additional buildable entitlement.

One 3-bedroom / 2-bath home with 1,451 living SF. The broker says the home needs work and updating and is sold as-is, on two fenced lots. This is a condition-based renovation lead; no short sale, bank ownership or foreclosure is substantiated. Rent, rehabilitation budget and insurance are unknown.

Resolve the 10,000-SF / 0.11-acre lot conflict, rehabilitation scope, permits and legal rental use. Two lots do not establish a second buildable home.

Listed by Coldwell Banker Schmitt RE Co. · via Buy Key West broker IDX · observed Oct 18, 2026Read the full agent description at Buy Key West broker IDX ↗

View broker photos (opens broker website)

Broker info & key considerations To confirm

As-is renovation · budget unknown

Obtain contractor bids, inspection and permit/code history before evaluating an offer.

  • As-is home needs work and updating; renovation scope, structural condition, permits and budget are unknown.
  • Lot area conflicts within the source: 10,000 SF versus 0.11 acres. Parcel scope, combined area and any pool or additional construction entitlement require official review.
  • Broker reports a 28-day minimum rental and IS zoning. This is not verified rental permission; unincorporated Monroe licensing, exact zoning, occupancy and lease rules require confirmation.
  • Flood zone, elevation, wind/flood insurance, current occupancy and rental income are unknown. HOA N/A is not confirmed zero.
  • The $5,341.04 tax figure is historical 2025 seller tax, not a buyer forecast.
Source evidence and diligence

Financial figures observed Oct 18, 2026. Reported income is not audited collections. Editable estimates, financing and saved assumptions are separate from these source facts.

Gross rental yield basis

Needs supported whole-property rent or your rent assumption and a positive asking price. Unknown rent is not zero.

Sources

Questions to resolve

  • Obtain contractor bids, inspection and permit/code history before evaluating an offer.
  • Match both advertised lots to official parcel/title records and resolve the area conflict; assume no extra dwelling or pool approval.
  • Verify rental eligibility and required licenses, flood/elevation records and transaction-specific insurance before modeling income.
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46 properties

Compare income, cash flow and risks.

46 of 98 researched properties

1916 Seidenberg Ave: listing photo 1
Multifamily
Price$999K$590/SF

1916 Seidenberg Ave

Midtown East · Key West

2 reported units1,694 SF
Reported rent / mo
$7,650
Reported gross yield1
9.2%
Est. cap rate
4.5%
Est. cash flow / mo
$3,478
Cash purchase · after reserves
  • Two 3 bed / 1 bath units, advertised at $3,850 and $3,800 monthly
  • $7,286/year historical tax

Source checked · Sep 25, 2026

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1932 Dewey St: listing photo 1
Multifamily
Price$499K$340/SF

1932 Dewey St

Hollywood South Side · Hollywood

2 reported units1,468 SF
Reported rent / mo
$3,900
Reported gross yield1
9.4%
Est. cap rate
3.6%
Est. cash flow / mo
$1,388
Cash purchase · after reserves
  • $7,474/year historical tax

Source checked · Oct 5, 2026

Open brief
1765 Normandy Dr: listing photo 1
Multifamily
Price$1.39M$459/SF

1765 Normandy Dr

Normandy Isle · Miami Beach

4 reported units3,024 SF
Reported rent / mo
$8,667
Reported gross yield1
7.5%
Est. cap rate
2.8%
Est. cash flow / mo
$2,972
Cash purchase · after reserves
  • 2 × 2BR/1BA + 2 × 1BR/1BA
  • $15,491/year historical tax

Source checked · Oct 18, 2026

Open brief
851 80th St: listing photo 1
Multifamily
Price$1.4M$314/SF

851 80th St

North Beach · Miami Beach

4 reported units4,458 SF
Reported rent / mo
$8,800
Reported gross yield1
7.5%
Est. cap rate
2.6%
Est. cash flow / mo
$2,788
Cash purchase · after reserves
  • 4 × 2BR/1BA
  • No HOA reported
  • $17,758/year historical tax

Source checked · Sep 25, 2026

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2120 Biarritz Dr: listing photo 1
Multifamily
Price$1.7M$487/SF

2120 Biarritz Dr

Normandy Isle · Miami Beach

4 reported units3,492 SF
Reported rent / mo
$9,700
Reported gross yield1
6.8%
Est. cap rate
2.5%
Est. cash flow / mo
$3,185
Cash purchase · after reserves
  • 2 × 1BR/1BA + 1 × 2BR/1BA + 1 × 2BR/2BA
  • $18,497/year historical tax

Source checked · Sep 25, 2026

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978 Gibraltar Rd: listing photo 1
Multifamily
Price$680K$179/SF

978 Gibraltar Rd

Winston Park · Key Largo

2 reported units3,794 SF
Reported rent / mo
$4,400
Reported gross yield1
7.8%
Est. cap rate
1.9%
Est. cash flow / mo
$926
Cash purchase · after reserves
  • Two 2-bedroom / 1-bath units, each reported at $2,200 per month
  • $4,605/year historical tax

Source checked · Oct 14, 2026

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4133 SW 52nd St: aerial photograph of the existing duplex and lot
Multifamily
Price$839K$432/SF

4133 SW 52nd St

Broward Gardens · Dania Beach

2 reported units1,942 SF
Reported rent / mo
$4,350
Reported gross yield1
6.2%
Est. cap rate
1.7%
Est. cash flow / mo
$1,065
Cash purchase · after reserves
  • Two existing residences: 3 bed / 2 bath and 2 bed / 2 bath
  • $13,067/year historical tax

Source checked · Oct 2, 2026

Open brief
2713 NE 33rd Ave: listing photo 1
Multifamily
Price$1.4M$614/SF

2713 NE 33rd Ave

Dolphin Isles · Fort Lauderdale

2 reported units2,271 SF
Reported rent / mo
$6,000
Reported gross yield1
5.2%
Est. cap rate
1.3%
Est. cash flow / mo
$1,370
Cash purchase · after reserves
  • Two 2 bed / 2 bath units; total existing rent advertised at $6,000 monthly
  • $19,762/year historical tax

Source checked · Sep 25, 2026

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1938 Pierce St: listing exterior photograph
Multifamily
Price$495K$472/SF

1938 Pierce St

Royal Poinciana · Hollywood

2 reported units1,049 SF
Reported rent / mo
$2,800
Reported gross yield1
6.8%
Est. cap rate
1.4%
Est. cash flow / mo
$498
Cash purchase · after reserves
  • Two 1-bedroom / 1-bath apartments offered together
  • Built 1954
  • 5,454 SF lot

Source checked · Oct 11, 2026

Open brief
600 SW 16th Ave: listing photograph 3
Multifamily
Price$1.36M$778/SF

600 SW 16th Ave

Little Havana · Miami

3 reported units1,748 SF
Reported rent / mo
$6,000
Reported gross yield1
5.3%
Est. cap rate
1.2%
Est. cash flow / mo
$1,199
Cash purchase · after reserves
  • Three apartments in one offering
  • Built 1953
  • $11,161/year historical tax

Source checked · Oct 11, 2026

Open brief
18 Prospect Ln A & B listing photograph 1
Multifamily
Price$465K$177/SF

18 Prospect Ln A & B

Palm Coast Sec 24 · Palm Coast

2 reported units2,622 SF
Potential rent / mo
$3,370
Full-occupancy estimate
Potential gross yield1
8.7%
Est. cap rate
2.7%
Est. cash flow / mo
$930
Cash purchase · after reserves
  • 3 bed / 2 bath per unit
  • Garage per unit
  • 2023 reroof permit

Source checked · Oct 12, 2026

Open brief
13 Buttonwood Ln listing photograph 1
Multifamily
Price$469K$181/SF

13 Buttonwood Ln

Palm Coast Sec 35 · Palm Coast

2 reported units2,588 SF
Potential rent / mo
$3,300
Full-occupancy estimate
Potential gross yield1
8.4%
Est. cap rate
2.5%
Est. cash flow / mo
$874
Cash purchase · after reserves
  • 3 bed / 2 bath per unit
  • 2 attached garages
  • Screened rear porches

Unit A advertised vacant

Source checked · Oct 12, 2026

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Estimates use editable assumptions.

Florida property research

Research scope includes Miami-Dade, Broward, the Florida Keys and Flagler County. Published observations vary by market.

1 Gross yield excludes costs and financing. Source figures are unverified; estimates use editable assumptions. Check current listing availability. County records are separate from listings. Saves stay in this browser; export a backup before clearing site data. Sources & methods