New York City property record for 439 E 42nd St, Brooklyn, NY 11203 · Last verified May 2026
| Property Type | Duplex |
|---|---|
| Details | 946 sqft · built 1945 |
| Lot Size | 0.049 acres (2,150 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $435,000 (Jan 2017) |
| Tax Bill | $6,049 (2025) |
| Deeds & Mortgages | Jan 2022 Mortgage Jan 2017 Sale & Mortgage |
| APN | 04942-0042 |
| Primary APN | 04942-0042 |
|---|---|
| Alternative APNs |
|
| Units | 2 Units |
|---|---|
| Stories | 1 Story |
| Building Area | 946 sqft Living Area |
| 1st Floor Area | 946 sqft |
| Year Built | Built 1945 |
|---|---|
| Effective Year Built | Effective 1945 |
| Architectural Style | Duplex Single |
| Construction Type | Brick |
| Lot Area | 2,150 sqft (0.049 acres) |
| Lot Dimensions | 100 ft deep x 21.5 ft wide |
| Account Number | 3-04942-0042 |
|---|---|
| Street Address | 439 E 42ND ST |
| City | BROOKLYN |
| State | NY |
| Zip | 11203-5124 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Block | 4942 |
| Legal Lot Number | 42 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 85000 |
Source: New York City records · APN 04942-0042
Assessment roll updated May 4, 2026 · Last verified May 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 439 E 42ND ST, BROOKLYN, NY 11203-5124 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jan 06, 2022 | Deed of Trust, Mortgage ROCKET MORTGAGE LLC |
| Jan 27, 2017 | Grant Deed, Transfer ALEX LESSER |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jan 27, 2017 · Amount on Record |
| Deed Sale | Jan 27, 2017 · Amount on Record |
| Deed Document Number | 201738696 |
| Prior Transfer Date | Feb 12, 2000 |
| Record Updated | Jun 08, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Property Address | 439 E 42ND ST, BROOKLYN, NY 11203-5124 |
| Transaction Type | Mortgage |
| Record Updated | Jan 04, 2024 |
| Name | Verified Name |
|---|
| Document Number | 0000007656 |
|---|---|
| Date | Jan 06, 2022 |
| Instrument | 2022000007656 |
| Name | ROCKET MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | PO BOX 2026, FLINT, MI 48501 |
| Amount | Amount Recorded |
|---|
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Recording Date | Jan 27, 2017 |
| Property Address | 439 E 42ND ST, BROOKLYN, NY 11203-5124 |
| Document Number | 0000038696 |
| Instrument Date | Jan 20, 2017 |
| Instrument | 38696 |
| Transaction Type | Transfer |
| Record Updated | Feb 02, 2017 |
| Title Company | INSIGNIA TITLE AGENCY LIMITED, INSIGNIA TITLE AGCY LTD |
| Amount | Amount Recorded |
|---|---|
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,740.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 555 WASHINGTON AVE #1B BROOKLYN NY 112382741, 1B, BROOKLYN, NY 11238-2741 |
| Document Number | 38697, |
|---|---|
| Date | Jan 27, 2017 |
| Instrument | 38697 |
| Name | ALEX LESSER |
|---|---|
| Address | 100 JAY ST # 28H, BROOKLYN, NY 11201-1609 |
| Amount | Amount Recorded |
|---|---|
| Term | 180 Months |
| Due | Jan 26, 2032 |
Source: New York City records · Assessment roll updated May 4, 2026 · Last verified May 2026
| Type | Name |
|---|---|
| State | New York |
| County | Kings County |
| Municipality | New York City |
| Unified School District | New York City Department Of Education (PK - 12) |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $27,660 (-15.72%) Land $13,260 Building $14,400 | $461,000 (-15.72%) Land $221,000 Building $240,000 | |
| 2025 | $6,049.00 (+5.71%) | ||
| 2023 | $5,722.00 | $32,820 Land $13,260 Building $19,560 | $547,000 Land $221,000 Building $326,000 |
Source: FEMA National Flood Hazard Layer · FEMA OpenFEMA NFIP redacted claims and policies, census block group 360470850001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 2 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 1,754 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Optimum Communications | Fiber | 8,000 / 8,000 |
| Verizon | Fiber | 2,300 / 2,300 |
| Optimum Communications | Cable | 940 / 35 |
May also be available at this address: T-Mobile USA, Verizon, Starry. Availability varies by address; speeds are provider-advertised maximums, not measured.
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