432 Park Avenue

The building by the numbers

Metric	Value
Residential condo units on the roll	252
Median DOF assessed value	$836,377
Assessed-value range	$71,427 – $2,590,119
Units over the $1M surcharge threshold	28 (11%)
Top-unit surcharge if non-primary	$63,605 / year

Every condo and co-op in New York is tested against the pied-à-terre surcharge on its assessed value — the income-derived DOF figure, not the price the unit would sell for. In 432 Park Avenue, that test splits the building: 11% of units clear the $1,000,000 threshold and owe 4%–6.5% of assessed value above it for any year they are not someone's primary residence, while the rest owe nothing under Phase 1 (through June 30, 2028). Phase 2 re-tests everyone in 2028.

Sample units from the FY 2026–27 roll

Unit	DOF market value	Assessed value	Est. surcharge if non-primary
Apt 28L	$158,726	$71,427	$0 — under threshold
Apt 29E	$907,637	$408,437	$0 — under threshold
Apt 37B	$1,858,614	$836,377	$0 — under threshold
Apt 94	$1,910,510	$859,730	$0 — under threshold
Apt 92	$5,755,822	$2,590,119	$63,605 / yr

Owners in Billionaires' Row: a large share of homes in buildings like this are second residences — exactly what the surcharge targets. The exemptions are real, though: a unit occupied >half the year by you or an immediate family member, or leased arm's-length for 12+ months, owes nothing. The main guide covers every rule; the free check below gives you your unit's exact numbers.

Figures from the public NYC DOF assessment roll (dataset 8y4t-faws), FY 2026–27. Educational information, not tax or legal advice. Surcharge estimates assume graduated brackets above the statutory threshold. Unit designations are public record; no ownership information is shown.