647 Dekalb Avenue, Brooklyn, NY 11216

647 Dekalb Avenue, Brooklyn, NY 11216 is a 4-story walk-up apartment building, built in 1910, with 8 residential units, on a 1,842 sq ft lot. The city's 2027 market value is $1,663,000. It last sold on 12/30/2025 for $4,250,000. City records list 23 violations, 14 mortgages and 2 sales for this lot.

1. 2027City market value set at $1,663,000
2. 12/30/2025Sold for $4,250,000
3. 2019Building altered
4. 1910Building completed

Address

647 Dekalb Avenue

Borough

Brooklyn

Zip code

11216

Block & lot

01774-0070

BBL

3017740070

Condo number

—

Community district

303

School district

13

Council district

36

Historic district

—

Owner

Locked. Included in the full report.Unlock owner name for free

Property type

Walk-up apartments (C1)

Square feet

5,660 sq ft

Building dimensions

Locked. Included in the full report.

Stories

4

Year built

1910

Year altered

2019

Residential units

8

Total units

8

Buildings on lot

1

Lot sq ft

1,842

Lot dimensions

18 ft x 100 ft

Zoning

Locked. Included in the full report.

FAR

Locked. Included in the full report.

Buildable area

Locked. Included in the full report.

Market value

$1,663,000

Tax year

2027

Last sale date

12/30/2025

Last sale price

$4,250,000

Tax amount

Locked. Included in the full report.

Loan amount

Locked. Included in the full report.

• Pre-foreclosureAny open foreclosure case on the lot: plaintiff, filing date, case type and court status.
• Owner & contacts· 18 people and companiesOwner of record is a companyOwner of record, deed owners, mailing address, registered officers and managing agent, permit applicants.
• Sales history· 2 salesEvery priced sale on the lot, with unit and building class at the time of sale.
• Financials· 14 mortgagesOpen mortgages, lenders, loan amounts, recording and maturity dates, estimated equity.
• Tax· 5 years of assessmentsAnnual tax bill, tax class and assessment history by roll year.
• Permits· 25 permitsBuilding permit filings, job types, status and estimated cost.
• DevelopmentZoning districts, residential, commercial and facility FAR, unused air rights.
• Violations· 23 violationsOpen and closed housing and building violations with balances due.

When was 647 Dekalb Avenue built?

647 Dekalb Avenue was built in 1910 and altered in 2019, according to the city's lot file.

How many units does 647 Dekalb Avenue have?

647 Dekalb Avenue has 8 units across 4 stories.

When did 647 Dekalb Avenue last sell?

It last sold on 12/30/2025 for $4,250,000, according to the city's recorded sales.

What is 647 Dekalb Avenue worth?

The city's 2027 market value for 647 Dekalb Avenue is $1,663,000. That is the city's assessment estimate, not an appraisal or an asking price.

Who owns 647 Dekalb Avenue?

Create a free Hercules account to see the owner of record for 647 Dekalb Avenue. The full report adds the deed owners, the mailing address and the people named on the building's registrations.

• 49 Hart StreetWalk-up apartments (C3) · 3,432 sq ft
• 47 Hart StreetWalk-up apartments (C0) · 3,200 sq ft
• 45 Hart StreetWalk-up apartments (C0) · 3,200 sq ft
• 43 Hart StreetWalk-up apartments (C0) · 3,200 sq ft
• 41 Hart StreetWalk-up apartments (C0) · 3,200 sq ft
• 39 Hart StreetWalk-up apartments (C0) · 3,200 sq ft
• 37 Hart StreetWalk-up apartments (C0) · 3,200 sq ft
• 35 Hart StreetWalk-up apartments (C0) · 3,200 sq ft

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: 12/30/2025

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