257 Mars Ln, Key West, FL 33040 Property Records

Monroe County property record for 257 Mars Ln, Key West, FL 33040

Property Summary

Property Type	Mobile Home
Details	3 bd · 2 ba · 1,520 sqft · built 1979
Lot Size	0.119 acres (5,196 sqft)
Owner	Individual Name on File
Last Sale	$290,000 (Mar 2020)
Tax Bill	$3,364 (2024)
Deeds & Mortgages	May 2018 Sale
Flood Zone	Zone AE (high risk)
APN	`00145500-000000`

Property Details

APN / Parcel Number

Primary APN	`00145500-000000`
Alternative APNs	`27672600145500000000` `1186856`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Stories	1 Story
Building Area	1,520 sqft Living Area
1st Floor Area	1,520 sqft
Flooring	Vinyl/Resilient
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1979
Effective Year Built	Effective 2000
Architectural Style	Mobile Home
Exterior Material	Metal
Construction Type	Metal Frame
Roof Type	Flat
Roof Material	Metal
Lot Area	5,196 sqft (0.119 acres)

Exterior Amenities

Porch	Florida Room
Porch Area	80 sqft
Deck Area	103 sqft
Patio Area	103 sqft
Boat Access	Boat Access

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Forced Air with A/C

Location & Zoning

Account Number	1186856
Street Address	257 MARS LN
City	KEY WEST
State	FL
Zip	33040-6311
Property Category	Residential
Property Type	Residential > Prefabricated > Mobile Home
Local Zoning Code	URM
Legal Description	BK 4 LT 17 GEIGER MOBILE HOMES GEIGER KEY PB5-77 OR428-570/71 OR694-10 OR798-682 OR879-504 OR913-2306M/L OR964-2089/90 OR1264-766/784F/J OR1367-1677 OR1511-1720 OR1700-943R/S OR2165-280 OR2905-1179D/C OR2905-1180 OR3012-1661
Legal Range	26E
Legal Township	67S
Legal Section	27
Legal Subdivision	GEIGER MOBILE HOMES
Legal Block	4
Legal Lot Number	17
Jurisdiction	MONROE FL
Township / Civil Division	KEY WEST
Census Block Group	1
Census Block	1024
Census Tract	971700

Owner

257 Mars Ln, a mobile home, is owned by an individual who bought it in March 2020.

Source: Monroe County records, as of December 8, 2025

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Individual Name on File
Mailing Address	42 PALMETTO DR, KEY WEST, FL 33040-5641
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Mar 9, 2020 · Amount on File
Deed Sale	Mar 9, 2020 · Amount on File
Prior Sale	May 8, 2018 · Amount on File
Deed Document Number	20202259163
Deed Book / Page	3012 / 1661
Prior Transfer Date	Sep 30, 2005
Prior Transfer Doc	0021650280
Record Updated	Jun 8, 2026

May 2018: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	MONROE FL
Recording Date	May 8, 2018
Property Address	257 MARS LN, KEY WEST, FL 33040-6311
Document Number	0029051180
Book / Page	002905 / 001180
Instrument Date	May 4, 2018
Instrument	2167972
Transaction Type	Transfer
Record Updated	Jun 20, 2018
Title Company	ABSOLUTE FIRST TITLE LLC

Transaction

Amount	Amount on Record
Tax	$1,680.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4D 10TH AVE KEY WEST FL 330405868, KEY WEST, FL 33040-5868

Tax Assessment & Valuation

Source: Monroe County assessment roll, as of December 8, 2025

Property Jurisdictions

Type	Name
State	Florida
County	Monroe County
Unified School District	Monroe County School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$361,837 Land $279,285 Building $82,552	$361,837 Land $279,285 Building $82,552
2024	$3,364.00 (+8.27%)
2023	$3,107.00 (+12.61%)	$367,153 (+23.48%) Land $285,780 Building $81,373	$367,153 (+23.48%) Land $285,780 Building $81,373
2022	$2,759.00	$297,342 Land $215,634 Building $81,708	$297,342 Land $215,634 Building $81,708

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 257 Mars Ln in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.

Source: FEMA National Flood Hazard Layer, effective September 24, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone AE high risk
100-Year Floodplain	Yes 1% annual chance
Floodway	No
Base Flood Elevation	9.0 ft
Flood Insurance Requirement	Required federally backed loans
Flood Insurance Cost	Premium on File median of 243 individual policies
Community Rating System	Class 3 (35% premium discount)
Nearby Flood Policies	245 units insured incl. 2 condo units
Nearby Flood Claims	456 (1980–2022)
Most Recent Claim	Sep 2022 · Hurricane Ian
Claims by Event	Hurricane Irma, Sep 2017 · 56 claims Hurricane Wilma, Oct 2005 · 178 claims Hurricane Georges, Sep 1998 · 180 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 257 Mars Ln is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 96% of the US · lower than 96% of Florida
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Internet Providers

Source: FCC Broadband Data Collection, based on 187 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL	5,000 / 5,000
Xfinity Cable	1,200 / 35
Verizon Fixed Wireless	300 / 20
T-Mobile Fixed Wireless	100 / 20