The listing facts are current enough for an initial property review.
521 Park Ave Apt 3C
Market Insights
$1521/sqft vs a nearby median of $1230/sqft.
- +24% versus the nearby median price per square foot.
- Price history is limited, so current comps matter more than trend alone.
- 1,693 sqft creates a usable price-per-square-foot read.
Pricing Read
Asking price is about 16.3% above where comps + adjustments land — there is room to negotiate.
- Transit access+$83k +4.0%
- Days-on-market gravity−$62k −3.0%
- Pre-war character+$52k +2.5%
Property Read
The property is priced above the nearby median per square foot, so condition, building quality, and exact location need to justify the higher ask.
Price history is still limited; review again as more market activity becomes available.
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Generated from the facts shown on this page and nearby market data. Not a professional appraisal.
Listing Details
- Days on market
- 242 days
- Last price change
- No change recorded
- Listed
- Sep 12, 2025
- Photos
- 14 photos
- Property type
- condos
- Status
- for sale
Photos
Building Facts
- Year built
- 1912
- Stories
- 12
- Total units
- 29
- Residential units
- 24
- Building area
- 1.14 ac
- Lot size
- 6,025 sqft
- Land use
- Mixed residential and commercial buildings
- Building class
- RM
From NYC public records where available.
Price History
Public Records
23 total recorded against the building
6 total recorded
Tax-lot deed, mortgage, and transfer records on file
Recent DOB
- Dec 28, 2021V-DOB VIOLATION - ACTIVE · E-ELEVATOR ELEVATORREQUIRED
- Dec 28, 2021V-DOB VIOLATION - ACTIVE · E-ELEVATOR ELEVATORREQUIRED
- Aug 6, 2019V*-DOB VIOLATION - Resolved · E-ELEVATOR ELEVATORREQUIRED
- Aug 6, 2019V*-DOB VIOLATION - Resolved · E-ELEVATOR ELEVATORREQUIRED
Recent HPD
- Jun 4, 2025Class A · (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD S WEBSITE, WWW.NYC.GOV\HPD, SEARCH BE...
- Jul 3, 1995Class B · § 27-2005, 2007 ADM CODE ARRANGE AND MAKE SELF-CLOSING THE DOORS AT ROOF BULKHEAD STAIR.
- Jul 3, 1995Class B · § 27-2005, 2007 ADM CODE FIRE EGRESS DEFECTIVE. REMOVE THE OBSTRUCTION IN FIREPROOF PASSAGEWAY CONSISTING OF DOORS & BRICK ETC AT NORTH.
- Jul 3, 1995Class B · § 27-2005, 2007 ADM CODE AND DEPT. RULES AND REGULATIONS. REMOVE THE ENCUMBRANCE OBSTRUCTING EGRESS FROM FIRE ESCAPES AIR CONDITIONER PROTRUDING BEYOND WINDOW SILL AT NORTH STAC...
Sourced from NYC Open Data (DOB, HPD, ACRIS). Updated as the city republishes — check the original source for live status.