How many homes are on 21St Avenue S in Naples?

7 homes in the parcel and MLS record, built between 1978 and 2025.

Are there homes for sale on 21St Avenue S?

4 listed right now, from $5,495,000.

21St Avenue S, Naples, FL

Everything we know about 21St Avenue S in Naples: what is for sale, what has sold, what the homes are like and which communities the street runs through — from the MLS record and county parcel data, refreshed nightly.

7 homes sit on 21St Avenue S in Naples, FL (ZIP 34102), built 1978–2025, a typical 5,727 sq ft with 4 bedrooms. 4 are for sale right now from $5,495,000 to $13,495,000.

For sale on 21St Avenue S now

$13,495,000

5 bd · 7 ba · 6,130 sq ft · built 2017

481 21St Ave S

Listing courtesy of Premier Sotheby's Int'l Realty

$8,700,000

5 bd · 6 ba · 5,325 sq ft · built 2014

628 21St Ave S

Listing courtesy of Premiere Plus Realty Company

$5,500,000

3 bd · 2 ba · 1,847 sq ft · built 1978

605 21St Ave S

Listing courtesy of Compass Florida LLC

$5,495,000

4 bd · 5 ba · 3,982 sq ft · built 2001

550 21St Ave S

Listing courtesy of The Agency Naples

The homes on 21St Avenue S

Built by decade: 1970s 1, 2000s 2, 2010s 2, 2020s 1.

Communities along 21St Avenue S

Aqualane Shores · 7 homes on the street

How to read this

Home counts, build years, sizes and last sales come from the county parcel record joined to MLS history; listings and 12-month closings from the live MLS feeds as of October 15, 2026. Listings appear courtesy of the listing brokerage under IDX rules; information deemed reliable but not guaranteed. See also all 1,961 homes for sale in Naples, homes for sale in 34102.

21St Avenue S, Naples, FL

For sale on 21St Avenue S now

The homes on 21St Avenue S

Communities along 21St Avenue S

How to read this

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