Alteration filingSep 1
DOB filing X01417912-I1
Alteration filing at 3950 Blackstone Avenue
Approved7 proposed stories
Open filing Building record · BIN 2085805
3950 Blackstone Avenue
3950 Blackstone Avenue, Bronx, NY 10471
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 1 independently sourced records, including 1 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 2085805
3950 Blackstone Avenue
Riverdale-Spuyten Duyvil, Bronx
A consolidated public-record view · updated Sep 1, 2026
- DOB filings
- 1
- Active-status
- 1
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings1
Open or active-status records1
First included filingJun 17, 2026
Latest recorded changeSep 1, 2026
The lot
What is already here?
The lot holds a 6-story elevator apartment building built in 1959, with 189 homes, on a 102,825 sq ft lot.
- Floors 2–6Homes189 homes are recorded on this lot — about 38 homes to a floor. The city does not publish which floor any of them is on.
- Floor 1Street levelStreet level. The lot is recorded as mixed residential and commercial, so this floor is where the commercial space is.
- Street levelMixed residential and commercial
- Homes189 recorded on the lot
- Above the southern skylineFrom about floor 7 — the tallest thing within 60 m to the south is 19.8 m
- Built
- 1959
- Floors
- 6
- Residential units
- 189
- Building type
- Elevator apartment building
- Land use
- Mixed residential and commercial
- Zoning district
- R4
- Lot area
- 102,825 sq ft
- Building area
- 237,000 sq ft
What it sold for
14 apartments on this tax block changed hands in the year the city last published, at a median of $425,000, from 115,000 to 645,000.
Recorded sale prices from the Department of Finance’s rolling file, covering the year to Aug 31, 2026. Transfers under $10,000 are left out: New York records deed transfers between relatives at a dollar, and those are not sales. No apartment number and no name is carried from either side.
Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 4, 2026. They describe the tax lot, not any single filing. When the rest of New York went up
Violation record
Are there open violations here?
The Department of Buildings has 1 open notice on record for this building, out of 83 notices on file; the most recent was issued Mar 8, 2024.
- Hazardous condition (facade)
Issued Mar 8, 2024 — CYCLE 9A UNSAFE REPORT FILED
Open means the agency has not recorded a resolution, which is not the same as the problem still existing. What a violation is, and what it is not. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Sep 14, 2026.
What is recorded here
Multiple filings, one stable building identifier.
New York City's Building Identification Number helps connect filings that may use different application numbers or describe different scopes of work. The records below are grouped because they publish BIN 2085805. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 1 alteration filing. Its latest status categories are 1 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Jun 17, 2026
- Latest recorded change
- Sep 1, 2026
- Highest proposed story count
- 7 stories
- Highest proposed unit count
- 120 dwelling units
Highest recorded values may come from different filings and must not be combined into one proposed project. Open the individual filings below for their exact scope. Values outside the publication's conservative data-quality bounds are withheld pending source review.
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Recorded history
What has happened at this address?
Every dated event the city has published for this building, from all 1 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Local stucco repair at balcony line in rear yard. Local stucco repair at bulkhead on roof. No change in use, egress or occupancy. Filing X01417912-I1.
- Alteration approved02
Filing X01417912-I1 reached an approved status.
- Permit recorded for alteration03
DOB lists a first permit date for X01417912-I1. That is not by itself confirmation of activity on site.
- Alteration now approved04
The latest status recorded for X01417912-I1 is “Permit Entire.”