12901 W Olive Ave, El Mirage, AZ 85335

Office · El Mirage · Phoenix metro, AZ

One of 5 reachable office buildings in El Mirage.

County gross building area
531,563 SF, Maricopa County Assessor
Lot size
6,053,853 SF, Maricopa County Assessor
Year built
2020, Maricopa County Assessor
Stories
1, Maricopa County Assessor
Buildings on parcel
3, Maricopa County Assessor
Predominant use
Data Centers, Maricopa County Assessor
Assessed value
$241,530,101, per the Maricopa County Assessor (not a market appraisal)
Assessed value per building SF
$454.38/SF, derived from assessor records
Building area / lot
0.09, derived from assessor records
Vintage
2020s vintage
County use code
DATA CENTERS

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: $277M (estimated market value), with a likely range of $221M to $328M (half of recent verified sales in this segment landed inside that range). Computed as the county's full cash value of $241,530,101 times a 1.15 market ratio, measured from 1245 office sales across the county; data centers are valued on the office family ratio within a 3,891-sale countywide calibration (since 2022-01, through 2026-06-29). Not an appraisal. How this estimate works.

lower confidence: 0 comparable sales within 3 miles; nearest 14.1 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 3x apart from) the $41.53/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.

Value over time

$0$100M$200M$300M$400M202520262027$277M$242MCounty assessed valueMakeMe Estimate range

Dark line: county assessed value per Maricopa County tax rolls. Blue line: our estimate; dashed years are a modeled backcast built from recorded arm's-length sales in the building's segment, not estimates published at the time, and years without enough sales stay unmodeled. The shaded range is the model's measured error band; about half of verified sales in the segment land inside it. Not an appraisal. How this estimate works.

Land, site, and value history

Assessed value moved from $89,547,601 (2025) to $241,530,102 (2027), up 170% over 2 years, per county tax rolls. The 2027 roll splits $241,530,102 into $99,928,500 land and $141,601,601 improvements.