20100 N 51st Ave, Glendale, AZ 85308

Office · Glendale · Phoenix metro, AZ

One of 657 reachable office buildings in Glendale. Larger than 92% of office buildings in Glendale (median 7,223 SF), derived from assessor records.

County gross building area
18,156 SF, Maricopa County Assessor
Lot size
3,512 SF, Maricopa County Assessor
Year built
2007, Maricopa County Assessor
Stories
1, Maricopa County Assessor
Predominant use
Medical Condominiums, Maricopa County Assessor
Assessed value
$1,041,300, per the Maricopa County Assessor (not a market appraisal)
Assessed value per building SF
$57.35/SF, derived from assessor records
Building area / lot
5.17, derived from assessor records
Vintage
2000s vintage
County use code
MEDICAL CONDOMINIUMS

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: $1.22M (estimated market value), with a likely range of $971K to $1.44M (half of recent verified sales in this segment landed inside that range). Computed as the county's full cash value of $1,041,300 times a 1.17 market ratio, measured from 3891 verified arm's-length sale prices vs county values (office sales in Glendale, through 2026-06-29). Not an appraisal. How this estimate works.

lower confidence: 4 comparable sales within 3 miles; nearest 0.2 mi. This property type carries wider measured error; treat the estimate as a starting point. Comparable-sale caveat: the estimate is 78% below the $304.51/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. Buyer and seller names are withheld. Get this data via API.

Market context: Office in Glendale

median verified sale $175.64/SF over the trailing 24 months; 14 sales in the last 12 months and 26 in 24 (newest verified sale 2026-05); the middle 80% of recent sales traded at 0.63x to 1.57x their county full cash value, median 1.17x (26 sales with usable county values).

  • 2022: $251.10/SF median (10 sales)
  • 2023: $188.90/SF median (8 sales)
  • 2024: $154.85/SF median (13 sales)
  • 2025: $153.94/SF median (13 sales)
  • 2026 YTD: $275.04/SF median (4 sales)

This estimate sits at 1.17x county full cash value, the 46th percentile of those recent sale premiums.

Computed from 168 verified arm's-length sales in Maricopa County public records (26 in the trailing 24 months). Free public records. Not an appraisal.

Value over time

$0$500K$1M$1.5M20262027$1.22M$1.04MCounty assessed value

Dark line: county assessed value per Maricopa County tax rolls.

Land, site, and value history

Assessed value moved from $1,090,200 (2026) to $1,041,300 (2027), down 4% over 1 years, per county tax rolls. The 2027 roll splits $1,041,300 into $208,200 land and $833,100 improvements.