How well maintained is this building?

There are 17 open HPD violations on record, including 6 Class C (the city's most serious category). That's higher than typical for the neighborhood (1 average per building).

Is this building rent-stabilized?

Yes — this building appears on the DHCR rent-stabilized building list. Ask the landlord to confirm whether a specific apartment is stabilized.

How noisy is this building?

Neighbors filed 0 noise complaints with 311 in the past year — none on record for this building.

How responsive is management to problems?

Resolved violations at this building closed in about 85 days on average (NYC average is roughly 45 days). Open items are listed in the Safety & Violations section above.

What does it cost to live here?

We don't have current listings for this building. Typical asking rent in South Slope is about $3,688/month for a one-bedroom.

423 16th Street

South Slope·Brooklyn

🔴1 Pest Alert

⚪Pre-War

Scroll for details

Violation & building data

Violation data updated Jul 1

Sources: NYC Department of Buildings, NYC Housing Preservation & Development +1 more

Building overview

Area Avg$3,687.51-bed neighbourhood

Value—needs listing data

Violations6 critical

BuildingWalk-up

Data as of Jul 1, 2026

Building Quality

How is this calculated?

0.0/ 10Significant Issues

Based on open violations, 311 complaint patterns, and amenities.

Unit Value

How is this calculated?

Limited data — verify with a tour.

Compared to typical rent for this neighborhood and bedroom count.

Highlights

What's great about this place

Pre-war character
Built in 1920
Quieter than average for the neighborhood
0 noise complaints in past year (vs 1 median)

Things to Know

Real considerations before you sign

Open critical violations
6 Class C (immediately hazardous)
Top complaint type at this building
7 heat complaints in past year
Significant issues across building data
See violation history below for details

How we pick these

Neighbourhood mapOpen in Google Maps

About this building

A 4-story building located in Windsor Terrace-South Slope, containing 16 residential units. Built in 1920.

The Building DNA

Building Services

Elevator

Doorman

Laundry in building

Gym

Parking

Pet-friendly

Unit Perks

In-unit laundry

Dishwasher

High-speed internet

Central A/C

Neighborhood

South Slope →

The neighborhood: South Slope

Brooklyn · 2,818 buildings tracked

Median asking rent: $3,688 1BR · $5,000 2BR

4th6thAvCulver

2 subway stations nearby

Full South Slope guide

Available Units

0 active · 1 past listing

Unit	Size	Price	Date
YORK	2 Bed, 1 Bath	$5,900	Off Jul 2026	View

Safety & Violations

Safety Record

Active Violations

Higher than typical for this neighborhood (17 vs 1 average per building).

Top issues

Safety5
Security2
Structural2

Severity Key

Class C: Immediately Hazardous (Major)
Class B: Hazardous (Moderate)
Class A: Non-Hazardous (Minor)

Show Critical Only (Class C)

Heat/Hot Water
M/D LAW ABATE THE NUISANCE CONSISTING OF HOT WATER EXEEIDING THE ALLOWABLE TEMBRETURE OF 130 DEGREES AT ALL FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 13, 4th STORY, 1st APARTMENT FROM SOUTH AT WEST
Oct 30, 2025Class C
Safety
C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 13, 4th STORY, 1st APARTMENT FROM SOUTH AT WEST
Oct 30, 2025Class C
Safety
C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 4, 1st STORY, 2nd APARTMENT FROM WEST AT NORTH
Oct 30, 2025Class C
Pests
ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 5, 2nd STORY, 1st APARTMENT FROM EAST AT SOUTH
Oct 13, 2022Class C
Window/Door
THE MISSING UPPER SASH GLASS PANE AT NORTH 1 WINDOW IN THE 1st ROOM FROM NORTH LOCATED AT APT 12, 3rd STORY, 2nd APARTMENT FROM WEST AT NORTH
Nov 23, 2012Class C

Market Value Estimate

Statistical estimate based on publicly available listing data. Not an appraisal. See disclaimer.Market data as of Jul 1, 2026.

Comp Matrix

Unit Type	This Bldg	Area Avg	Diff.
1 Bed	—	$3,687.5	—
2 Bed	—	$5,000	—
3+ Bed	—	$6,400	—

Value Verdict

Insufficient listing or market data to compute a verdict for this building.

Rent vs. Buy Analysis

No listing data available to estimate rent vs. buy.

Management & Operations

Management & Performance

Owner/Operator

MFP 423 16TH LLC

Responsiveness Score

85days

Average time to resolve violations

Slower than NYC average (45 days)

We haven't verified this building's policies yet. Pet, utility, and leasing details appear here once we've reviewed the management company's official site — we only show policies we can source, never assumptions.

Living here — quick answers

Every answer comes from public records for this specific building — we skip questions we can't answer with data.

How well maintained is this building?: There are 17 open HPD violations on record, including 6 Class C (the city's most serious category). That's higher than typical for the neighborhood (1 average per building).
Is this building rent-stabilized?: Yes — this building appears on the DHCR rent-stabilized building list. Ask the landlord to confirm whether a specific apartment is stabilized.
How noisy is this building?: Neighbors filed 0 noise complaints with 311 in the past year — none on record for this building.
How responsive is management to problems?: Resolved violations at this building closed in about 85 days on average (NYC average is roughly 45 days). Open items are listed in the Safety & Violations section above.
What does it cost to live here?: We don't have current listings for this building. Typical asking rent in South Slope is about $3,688/month for a one-bedroom.

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