BuildingCensus

500 S MCDUFF AVE

Office · Jacksonville · 32254

At a glance

500 S MCDUFF AVE in Jacksonville, FL is listed on the Jacksonville / Duval County property roll as “Office”, parcel ID 260569730000R. The roll records 10,266 sq ft of building area, a 1982 build year and an assessed value of $1,268,700.

Active records here
0
business-tax + registry entities
Building area
10,266
sq ft (county roll)
Floors
—
county roll
Year built
1982
vintage
Assessed value
$1.3M
current roll
Assessed / sq ft
$124
assessed value per sq ft
Last sold
—
no transfer on record
Sale / sq ft
—
not derivable from the record

Jacksonville / Duval County assessment roll

Parcel record

FieldValue
parcel ID260569730000R
Site address500 S MCDUFF AVE
Land use (DOR)019 — Office
Building area (actual)10,266 sq ft
Floors / units / buildings— / — / 1
Lot size23,459 sq ft
Year built1982
Zoning (primary)—
Land value$175,000
Building value—
Total assessed value$1,268,700

Recorded owner (assessment roll)

CASSELBERRY REAL ESTATE INC

Owner mailing address: 12171 SW 268TH ST, MIAMI, FL, 33032

15 Jacksonville office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.

Location

Address
500 S MCDUFF AVE
City
Jacksonville
ZIP
32254

Within ~650 m

Nearby office buildings

No other office parcels within ~650 m.

How does 500 S MCDUFF AVE compare with other Jacksonville office buildings?

At 10,266 sq ft, 500 S MCDUFF AVE is about 12% smaller than the average office building on the Jacksonville / Duval County roll, which comes to 11,657 sq ft across 5,389 buildings.

Its assessed value works out to $124 per square foot of building area, against $111 across all office floor area on the roll.

Does the owner of 500 S MCDUFF AVE hold other Jacksonville office property?

15 Jacksonville office properties (15 parcels, 103.1K sq ft) are recorded to 12 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.

What does “Office” mean for this parcel?

The Jacksonville / Duval County roll classifies parcel ID 260569730000R as “Office” (use code 019). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.

Frequently asked questions

Who owns 500 S MCDUFF AVE?

The recorded owner on the Jacksonville / Duval County assessment roll (current) is CASSELBERRY REAL ESTATE INC. Owner mailing address on file: 12171 SW 268TH ST, MIAMI, FL, 33032.

How big is 500 S MCDUFF AVE?

The Jacksonville / Duval County roll records 10,266 sq ft of building area, a build year of 1982. It sits on a 23,459 sq ft lot.

What is the assessed value of 500 S MCDUFF AVE?

$1,268,700 on the Jacksonville / Duval County roll. Assessed values are taxable-roll figures, not market prices.

What is the parcel ID for 500 S MCDUFF AVE?

Parcel ID 260569730000R, site address 500 S MCDUFF AVE, Jacksonville. It is the key to look the parcel up in the Florida DOR NAL assessment roll for Duval County (Jacksonville / Duval County).

More around 500 S MCDUFF AVE

Everything here comes from public records, and public records go stale. If you know better, say so.

Data provenance — public records only

  • Jacksonville / Duval County — Florida DOR NAL assessment roll for Duval County: owner names, mailing addresses, values, and recorded sales with price at month precision. The county's local business tax roll is not yet ingested, so no tenant layer yet.

Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.

Working with Jacksonville office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: Jacksonville / Duval County assessment roll, parcel ID 260569730000R.

About this data

Source: Florida DOR NAL assessment roll for Duval County (Jacksonville / Duval County), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.

Cite as: BuildingCensus, “500 S MCDUFF AVE, Jacksonville, FL (parcel ID 260569730000R)”, https://buildingcensus.com/offices/jacksonville/office-building-c6230146 (data as of September 20, 2026).