Port Largo 5th Add Homes for Sale

Port Largo 5th Add is a residential community in Key Largo, Florida. Active listings are currently priced from $3.3M–$3.3M.

Pure Equity Realty covers Port Largo 5th Add and the Key Largo area. We list for 1%, which includes photography, MLS syndication, and negotiation support. Buyers pay nothing for representation. For current market data, see Florida Realtors' market statistics.

Our MLS feed shows 2 Port Largo 5th Add Key Largo homes for sale as of October 2026. The median asking price is $3.34M.

That is 289% above the Key Largo median of $859,000. On a per-foot basis, homes here ask about $828 per square foot, compared with $672 across Key Largo. So the median price buys roughly 4,050 square feet of living area. With so few listings, though, treat these figures as a snapshot rather than a trend.

Listings here have averaged 70 days on the market. That is faster than the Key Largo average of 171 days. As a result, buyers here should be ready to write an offer soon after a showing.

Homes listed in Port Largo 5th Add date from 1983, so they are about 43 years old.

All of these homes predate Florida's 2002 statewide building code. So roof age, window protection and the wind mitigation report matter a great deal for insurance.

In addition, most Florida insurers ask for a four-point inspection on homes 30 years or older. It covers the roof, electrical, plumbing and HVAC. Updated systems usually make coverage easier to place.

Here is what the median Port Largo 5th Add price means in Florida closing terms. At $3.34M, a 20% down payment comes to about $668,000, leaving a loan near $2.67M.

Florida then taxes that loan twice. First, documentary stamp tax on the note runs 35 cents per $100, or about $9,349. Next, the intangible tax of 0.2% adds about $5,342. Buyers normally pay both at closing.

On the seller side, Florida deed stamps cost 70 cents per $100 of price. At the Port Largo 5th Add median, that is about $23,373.

Finally, owner-occupants should file for the Florida homestead exemption by March 1. It removes up to $50,000 of assessed value. After that, Save Our Homes caps yearly assessment increases at 3% or inflation, whichever is lower. To see what these numbers mean for your budget, get pre-approved before you tour.

Recent Port Largo 5th Add listings show assignments to Key Largo (elementary), Key Largo (middle) and Coral Shores (high). However, boundaries can change each year, so confirm the assignment for a specific address with the county school district.