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434 Clermont Avenue

Brooklyn, NY 11238BBL 3-01958-0049Map

Owner of record: Joshua A. Mattes Revocable Living Trust

434 Clermont Avenue is a walk-up apartment building built in 1857 in Brooklyn, 11238. It has 4 residential units across 4 floors. The owner of record is Joshua A. Mattes Revocable Living Trust. HPD has recorded 12 housing violations here, most recently on May 4, 2026. 1 of the 12 most recent violations are still open.

HPD violations
12
DOB violations
2
ECB violations
0
HPD complaints
3

What to know

Good
No open Class C

No open immediately-hazardous violations among recent records.

Good
Last violation May 4, 2026

Date of the most recent HPD inspection that found a problem.

Good
No unpaid ECB fines

No balance due on recent ECB violations.

Rent stabilization

No rent-stabilized units in 2018–2024 tax bills

Some apartments can still be regulated. Use the rent-stabilized checker or request the rent history from HCR.

Violations

Most recent first. Showing up to 50 per agency.

HPD housing violations · 12

  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    May 4, 2026

    Closed — Violation dismissed
  • I

    And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.

    Nov 20, 2025

    Closed — Violation dismissed
  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    Jun 9, 2025

    Closed — Violation dismissed
  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    Apr 9, 2024

    Closed — Violation dismissed
  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    Mar 22, 2023

    Closed — Violation dismissed
  • I

    And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.

    Nov 14, 2022

    Closed — Violation dismissed
  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    Feb 23, 2022

    Closed — Violation dismissed
  • I

    And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.

    Feb 23, 2022

    Closed — Violation dismissed
  • A

    File annual bedbug report in accordance with hpd rule as described on the back of this notice of violation or as described on hpds website, www.nyc.gov\hpd, search bed bugs.

    Apr 7, 2021

    Closed — Violation dismissed
  • I

    And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.

    Oct 16, 2018

    Closed — Violation dismissed
Show 2 more ↓
  • I

    And is therefore subject to civil penalties, prohibited from certifying violations, and denied the right to recover possession of premises for nonpayment of rent until a valid registration statement is filed.

    Oct 8, 2015

    Closed — Violation dismissed
  • B

    Provide adequate lighting at or near the outside of the front entranceway of the building and keep same burning from sunset every day to sunrise on the day following 100 watts. at front areaway

    Oct 4, 2000

    Open — Nov sent out

DOB building violations · 2

  • Construction other optional

    Structure rendered non-compliant. at time of inspection observed neighboring property's exterior masonry wall at 432 clermont avenue in complete disrepair where wall is leaning and bulging outward with severe cracks, loose/missing mortar & brick work in danger of collapse. rear yard within collapse zone.

    Dec 14, 2022

    Dob violation - active
  • Landmark none

    Landmk-landmark none

    Aug 26, 2004

    Dob violation - dismissed

ECB violations · 0

No ECB violations on record

Complaints

  • Heat/hot water

    Apartment only

    Feb 5, 2026 · Apt 4

    Close
  • Appliance

    Refrigerator

    Feb 2, 2026 · Apt 4

    Close
  • Heat/hot water

    Apartment only

    Jan 31, 2026 · Apt 4

    Close

Sales history

No recorded sales in our data

Sales come from the NYC Department of Finance rolling sales file.

Building details

Building type
Walk-up apartment building (C3)
Year built
1857
Floors
4
Residential units
4
Building area
3,780 ft²
Lot area
2,133 ft²
Zoning
R6B
Community board
302
Council district
35
Block / lot
1958 / 49
Assessed value
$1,213,650
Landmark / historic district
Fort Greene Historic District

HPD registration #348307, last renewed Jul 22, 2026.

Questions about 434 Clermont Avenue

Who owns 434 Clermont Avenue?

The owner of record in NYC Department of City Planning PLUTO data is Joshua A. Mattes Revocable Living Trust.

Does 434 Clermont Avenue have violations?

Yes. NYC HPD has recorded 12 housing violations at this property.

Is 434 Clermont Avenue rent stabilized?

No rent-stabilized units appear in its 2018–2024 tax bills. Individual apartments can still be regulated, so request the rent history from NYS Homes and Community Renewal if unsure.

When was 434 Clermont Avenue built?

City records list 1857 as the year it was built.

How many apartments are in 434 Clermont Avenue?

It has 4 residential units.

Source: NYC Open Data (DCP PLUTO, HPD, DOB, ECB/OATH, DOF). Records can lag the city's systems. Data refreshed weekly.