521 Dean Street, Brooklyn, NY 11217
Walk-up apartments (C6) · BBL 3011280076
Summary
521 Dean Street, Brooklyn, NY 11217 is a walk-up apartment building, built in 1930, with 10 residential units, on a 3,135 sq ft lot. The city's 2027 market value is $4,595,000. It last sold on 10/23/2025 for $690,000. City records list 11 violations (3 open), 7 mortgages and 12 sales for this lot.
History
Dated from city records. Deeds, mortgages, permits and violations are in the full report.
- 2027City market value set at $4,595,000
- 10/23/2025Sold for $690,000
- 1990Building altered
- 1930Building completed
Property
- Address
- 521 Dean Street
- Borough
- Brooklyn
- Zip code
- 11217
- Block & lot
- 01128-0076
- BBL
- 3011280076
- Condo number
- —
- Community district
- 308
- School district
- 13
- Council district
- 35
- Historic district
- —
- Owner
Building
- Property type
- Walk-up apartments (C6)
- Square feet
- 7,428 sq ft
- Building dimensions
- Stories
- —
- Year built
- 1930
- Year altered
- 1990
- Residential units
- 10
- Total units
- 10
- Buildings on lot
- 1
Lot and zoning
- Lot sq ft
- 3,135
- Lot dimensions
- 29 ft x 110 ft
- Zoning
- FAR
- Buildable area
Value, sale and loans
Market value is the city's assessment estimate, not a sale price or appraisal.
- Market value
- $4,595,000
- Tax year
- 2027
- Last sale date
- 10/23/2025
- Last sale price
- $690,000
- Tax amount
- Loan amount
In the full report
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Questions
- When was 521 Dean Street built?
- 521 Dean Street was built in 1930 and altered in 1990, according to the city's lot file.
- How many units does 521 Dean Street have?
- 521 Dean Street has 10 units.
- When did 521 Dean Street last sell?
- It last sold on 10/23/2025 for $690,000, according to the city's recorded sales.
- What is 521 Dean Street worth?
- The city's 2027 market value for 521 Dean Street is $4,595,000. That is the city's assessment estimate, not an appraisal or an asking price.
- Who owns 521 Dean Street?
- Create a free Hercules account to see the owner of record for 521 Dean Street. The full report adds the deed owners, the mailing address and the people named on the building's registrations.
Nearby properties
- 38 Sixth AvenueCondominium (RM) · 270,619 sq ft
- 18 Sixth AveCondominium (RM) · 806,897 sq ft
- 680 Atlantic AvenueMiscellaneous (Z9) · —
- 716 Atlantic AvenueVacant land (V1) · —
- 670 Pacific StreetElevator apartments (D1) · 83,828 sq ft
- 547 Dean StreetTwo family dwelling (B3) · 3,200 sq ft
- 545 Dean StreetTwo family dwelling (B1) · 3,200 sq ft
- 541 Dean StreetWalk-up apartments (C0) · 3,150 sq ft
Record dates
- City market value and tax year
Market value is the city's estimate for tax purposes. This is not a current sale price or an appraisal.
Valuation tax year: 2027
- Recorded sale
Latest recorded sale date: 10/23/2025
Refresh dates are not available in this preview. The tax year and sale date describe the records, not when Hercules last refreshed them.
Product facts · Market value, assessed value and sale price explained
Research guides
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- Owner & contacts · 12 contactsOwner of record, deed owners, LLC officers, mailing address and managing agent.
- Mortgages & lenders · 7 mortgagesEvery recorded mortgage, lender, loan amount and maturity date.
- Sales history · 12 salesEvery priced sale on the lot, with buyers, sellers and dates.
- Comparable salesRecent nearby sales to sanity-check value.
- Tax & assessments · 5 yearsAnnual tax bill, tax class, assessed and market value by year.
- Zoning & air rightsZoning districts, FAR and the buildable square feet left on the lot.
- Permits · 4 permitsBuilding permit filings, job types, status, cost and applicants.
- Violations · 11 violations, 3 openOpen and closed housing and building violations with balances due.
- Pre-foreclosure & distressForeclosure filings, tax-lien list status and other distress signals.