Property overview

603 6 Avenue

Brooklyn, NY 11215

Who owns 603 6 Avenue, what the county and city have on record, and a measured sell-signal score — every fact dated and sourced.

Owner of recordMisirli, Sinan BakiMailing address: not published by the CityObserved Sep 19, 2026 · NYC Department of City Planning ZoLa (MapPLUTO)

Parcel 3010540005 · Public research profile

Motivated Seller IndexDRAFT MODEL

48/100

About 1 in 100 homes with these signals sold within four months (0.8× the New York City rate)100% of model checks have usable evidence

A measured sell-signal score from public records: 2 positive signals observed. It is a base rate for homes like this, not a statement about this owner. How it works ↓

2024 aerial photo of the parcel at 603 6 Avenue, Brooklyn, NY — Aerial 2024 with parcel boundary · NYC OTI

Aerial 2024 with parcel boundary · NYC OTI

Assessed value$151,080 total (land $21,840); tax class 1 is assessed at 6% of market value

Tax statusUnverified

Ownership tenureUnverified

Property typeThree-family walk-up (DOF class C0), 3 floors, 3 residential units

THE INDEX

Why this MSI reads 48

Draft model

5 of 22 checked public signals observed, covering 100% of the model. The score is public; the signal-by-signal reasons, source documents, and owner details are in LienSuite.

Method and limits. MSI v0.2-nyc-2026-09 weights twenty-two public signals by how much each one changed the recorded four-month arm’s-length sale rate across all 636,000 privately owned one- to three-family lots in the five boroughs, checked on a holdout the model never saw (the top 0.5% of homes by score sold at 5.7x the citywide rate, the top 1% at 4.1x). Owner mailing addresses are not public in New York City, so absentee and out-of-state ownership are not part of this model.: new-building permit +27, trade permit +18, lien-sale notice (water/sewer) +13, lien-sale notice (property tax) +12, demolition permit +12, bought since 2024 +9, heat / hot-water violation +9, unsanitary / dirty / rodent complaint +8, hpd class b violation +6, construction / plumbing complaint +6, late-stage lien notice (30- or 10-day) +6, general-construction permit +4, star exemption (owner-occupied) +4, maintenance complaint +3, hpd class c violation +2, two or three units -3, structural violation -4, vermin / garbage violation -7, sidewalk shed / scaffold / fence permit -9, solar permit -12, structural / safety complaint -12, permit valued at $50,000 or more -14. The "in 100 homes" figure is the model's fitted probability for this combination of signals. It describes homes like this one in aggregate; it is not a claim about this owner's intentions, and it is not LienSuite's paid deal score.

THE RECORD

Property details

Dated sources

Property type: Three-family walk-up (DOF class C0), 3 floors, 3 residential units
Owner of record: Misirli, Sinan Baki (mailing address not published by the City)
Assessed value: $151,080 total (land $21,840); tax class 1 is assessed at 6% of market value
STAR exemption: None on file for tax year 2026
Building area: 1,890 sq ft
Lot size: 1,737 sq ft
Year built: 1899
Last recorded sale: $1,600,000, August 10, 2021; 2 sales recorded since 2016
Building permits: 6 DOB permits in the last 12 months: plumbing (plumbing work filed in conjunction with renovated 4-story residential building. ) issued December 23, 2025; support of excavation (soe filed in conjuction with rebuild & vertically enlage building for 4-story, 3) issued June 16, 2026; foundation (underpinning filed in conjunction with renovation of 4 story residential buildin) issued September 1, 2026; …
311 requests: 4 in the last 12 months: general construction/plumbing (4)

Parcel reference: 3010540005. Facts reflect the listed observation dates and may have changed since then.

OWNERSHIP AND TAXES

Research snapshot

Observed tax balanceNot verified

Delinquency periodNot verified

Last recorded transferNot connected

Transfer amountNot connected

Source details not yet connected. A tax balance is not proof that a property is for sale.

CHANGES OVER TIME

Property timeline

Sep 1, 2026
Permit: Foundation
UNDERPINNING FILED IN CONJUNCTION WITH RENOVATION OF 4 STORY RESIDENTIAL BUILDING. ALT-CO FILED UNDER B00680157-I1. SOE FILED UNDER B00680157-S1..
DOB NOW approved permits (NYC Open Data) · checked Sep 19, 2026
Jun 16, 2026
Permit: Support of Excavation
SOE FILED IN CONJUCTION WITH REBUILD & VERTICALLY ENLAGE BUILDING FOR 4-STORY, 3-FAMILY BUILDING ON EXISTING FOUNDATION. STRUCTURAL/FOUNDATION FILED UNDER B00672693-I1. UNDERPINNING FILED UNDER B00680157-S2..
DOB NOW approved permits (NYC Open Data) · checked Sep 19, 2026
May 13, 2026
311: General Construction/Plumbing
Cons - Contrary/Beyond Approved Plans/Permits, status Closed.
NYC 311 service requests (NYC Open Data) · checked Sep 19, 2026
Dec 23, 2025
Permit: Plumbing
PLUMBING WORK FILED IN CONJUNCTION WITH RENOVATED 4-STORY RESIDENTIAL BUILDING. INSTALL ALL NEW FIXTURES AND RELATED PIPING. NEW COMBINED DOMESTIC AND FIRE SERVICE. ALT-CO FILED UNDER SEPARATE APPLICATION # B00680157-I1.
DOB NOW approved permits (NYC Open Data) · checked Sep 19, 2026
Aug 10, 2021
Recorded sale
$1,600,000.
DOF annualized and rolling property sales (NYC Open Data) · checked Sep 19, 2026
Jun 18, 2019
Recorded sale
Consideration not stated (transfer).
DOF annualized and rolling property sales (NYC Open Data) · checked Sep 19, 2026

NEARBY

More records nearby

Facts on this page reflect their observation dates. Confirm the parcel and current records with the county before acting.