421 N 18th Dr, Phoenix, AZ 85007

Multifamily · Phoenix · Phoenix metro, AZ

One of 6,219 reachable multifamily buildings in Phoenix. Larger than 13% of multifamily buildings in Phoenix (median 2,816 SF), derived from assessor records.

County gross building area
1,604 SF, Maricopa County Assessor
Lot size
8,700 SF, Maricopa County Assessor
Year built
1926, Maricopa County Assessor
Stories
1, Maricopa County Assessor
Predominant use
Triplex - 1 Triplex Building, Maricopa County Assessor
Assessed value
$357,200, per the Maricopa County Assessor (not a market appraisal)
Assessed value per building SF
$222.69/SF, derived from assessor records
Building area / lot
0.18, derived from assessor records
Vintage
pre-war vintage
County use code
TRIPLEX - 1 TRIPLEX BUILDING

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: $450K (estimated market value), with a likely range of $360K to $534K (half of recent verified sales in this segment landed inside that range). Computed as the county's full cash value of $357,200 times a 1.26 market ratio, measured from 3891 verified arm's-length sale prices vs county values (multifamily sales in Phoenix, through 2026-06-29). Not an appraisal. How this estimate works.

lower confidence: 90 comparable sales within 3 miles; nearest 0.1 mi. This property type carries wider measured error; treat the estimate as a starting point. Recent sale check: this building sold for $330,000 in 2026; the estimate is about 36% apart. Treat the recorded trade as strong evidence alongside the model. Comparable-sale caveat: the estimate is 48% above the $189.66/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 90 nearby verified sales are shown. Buyer and seller names are withheld. Get this data via API.

Market context: Multifamily in Phoenix

median verified sale $232.26/SF over the trailing 24 months; median $170,000 per unit; 162 sales in the last 12 months and 333 in 24 (newest verified sale 2026-04); the middle 80% of recent sales traded at 0.83x to 1.60x their county full cash value, median 1.21x (333 sales with usable county values).

  • 2022: $287.23/SF median (185 sales)
  • 2023: $243.32/SF median (121 sales)
  • 2024: $251.02/SF median (148 sales)
  • 2025: $232.52/SF median (183 sales)
  • 2026 YTD: $218.37/SF median (42 sales)

This estimate sits at 1.26x county full cash value, the 60th percentile of those recent sale premiums.

Computed from 2,059 verified arm's-length sales in Maricopa County public records (333 in the trailing 24 months). Free public records. Not an appraisal.

Last sold: 2026-04-01 for $330,000 (recorded arm's-length sale).

Current ownership dates to 2026 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$200K$400K$600K$800K20262027Last sold $330K · 2026$450K$357KCounty assessed valueMakeMe Estimate rangeRecorded sale

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. Diamonds: recorded arm's-length sales. Not an appraisal. How this estimate works.

Land, site, and value history

Assessed value moved from $427,300 (2026) to $357,200 (2027), down 16% over 1 years, per county tax rolls. The 2027 roll splits $357,200 into $71,400 land and $285,800 improvements.