550 W Portland St, Phoenix, AZ 85003

Commercial · Phoenix · Phoenix metro, AZ

One of 1,020 reachable commercial buildings in Phoenix. Larger than 12% of commercial buildings in Phoenix (median 27,095 SF), derived from assessor records.

County gross building area
1,769 SF, Maricopa County Assessor
Lot size
10,585 SF, Maricopa County Assessor
Year built
1911, Maricopa County Assessor
Stories
1, Maricopa County Assessor
Predominant use
Sfr Converted To Office-Use, Maricopa County Assessor
Assessed value
$887,873, per the Maricopa County Assessor (not a market appraisal)
Assessed value per building SF
$501.91/SF, derived from assessor records
Building area / lot
0.17, derived from assessor records
Vintage
pre-war vintage
County use code
SFR CONVERTED TO OFFICE-USE

Nearby comparable buildings

Same building type, by distance. Assessor facts only; not an opinion of value.

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Sale history and market context

MakeMe Estimate: $1.13M (estimated market value), with a likely range of $905K to $1.34M (half of recent verified sales in this segment landed inside that range). Computed as the county's full cash value of $887,873 times a 1.28 market ratio, measured from 3891 verified arm's-length sale prices vs county values (commercial sales in Phoenix, through 2026-06-29). Not an appraisal. How this estimate works.

lower confidence: 6 comparable sales within 3 miles; nearest 0.6 mi. This property type carries wider measured error; treat the estimate as a starting point. Comparable-sale caveat: the estimate is well above (more than double apart from) the $306.41/SF median of the shown comparable sales.

Comparable sales used as evidence

Recorded arm's-length sales of similar buildings nearby; nearer and more recent sales rank first. The strongest 5 of 6 nearby verified sales are shown. Buyer and seller names are withheld. Get this data via API.

Market context: Commercial in Phoenix

median verified sale $226.16/SF over the trailing 24 months; 21 sales in the last 12 months and 32 in 24 (newest verified sale 2026-04); the middle 80% of recent sales traded at 0.59x to 2.38x their county full cash value, median 1.36x (31 sales with usable county values).

  • 2022: $213.69/SF median (22 sales)
  • 2023: $246.52/SF median (15 sales)
  • 2024: $226.16/SF median (12 sales)
  • 2025: $261.90/SF median (11 sales)

This estimate sits at 1.28x county full cash value, the 35th percentile of those recent sale premiums.

Computed from 185 verified arm's-length sales in Maricopa County public records (32 in the trailing 24 months). Free public records. Not an appraisal.

Last sold: 2019-07-01 for $517,000 (recorded arm's-length sale).

Current ownership dates to 2019 (about 7 years) per recorded transfers.

Source: Maricopa County recorded sales extract; buyer and seller shown only when a company or organization. Individual names are withheld.

Value over time

$0$500K$1M$1.5M20192021202320252027Last sold $517K · 2019$1.13M$888KCounty assessed valueRecorded sale

Dark line: county assessed value per Maricopa County tax rolls. Diamonds: recorded arm's-length sales.

Land, site, and value history

Assessed value moved from $881,284 (2026) to $887,873 (2027), up 1% over 1 years, per county tax rolls. The 2027 roll splits $887,873 into $667,700 land and $220,173 improvements.