Worst buildings in Prospect Heights, Brooklyn

259 Flatbush Avenue has the most open HPD violations per 10 units of any graded rental building with 6 or more units in Prospect Heights: 198.3 per 10 units, 119 open in all, 45 of them class C.

Graded rental buildings with 6 or more units, ranked by open NYC HPD housing code violations per 10 units, the same rule as the citywide list. Co-ops, condos and public housing (NYCHA) are left out. Only buildings with an HPD violation issued in the last 24 months or a 311 housing complaint in the last 12 are listed. Class C means immediately hazardous. Records as of Oct 26, 2026.

#	Address	Units	Open per 10 units	Open violations	Grade	Owner
1	259 Flatbush Avenue	6	198.3	119 (45 class C)	F	259 FLATBUSH AVE CORP
2	423 Lincoln Place	6	163.3	98 (23 class C)	F	423 FLATBUSH, LLC
3	341 St Johns Place	8	136.3	109 (21 class C)	F	341 ST JOHNS LLC
4	495 Sterling Place	20	124.5	249 (44 class C)	F	495 STERLING PL HDFC (City program owner (HDFC))
5	386 Prospect Place	8	122.5	98 (28 class C)	F	M & M PROSPECT HEIGHTS LLC
6	545 Bergen Street	8	118.8	95 (20 class C)	F	Prospect Partners, LLC
7	552 Dean Street	8	117.5	94 (23 class C)	F	552 DEAN REALTY ASSOCIATES LLC
8	477 St Johns Place	16	113.1	181 (36 class C)	F	477 Saint Johns Place LLC
9	319 Flatbush Avenue	8	112.5	90 (17 class C)	F	1087 FULTON REALTY INC
10	374 Prospect Place	24	101.7	244 (32 class C)	F	Not on file
11	486 Dean Street	6	75	45 (10 class C)	F	49 6TH AVENUE REALTY 1 CORP
12	319 Lincoln Place	10	73	73 (12 class C)	F	319 Lincoln LLC
13	434 Park Place	10	70	70 (11 class C)	D	Not on file
14	762 Classon Avenue	6	70	42 (13 class C)	F	GORTEZ-CLASSONAVE LLC
15	77 St Marks Avenue	6	66.7	40 (17 class C)	D	DWELL 1 HOLDINGS LLC
16	263 Flatbush Avenue	6	63.3	38 (1 class C)	D	Individual owner
17	367 Lincoln Place	16	63.1	101 (12 class C)	F	369 LINCOLN PL LLC
18	618 Grand Avenue	8	62.5	50 (5 class C)	F	CROWN PROSPECT HOUSES HDFc (City program owner (HDFC))
19	851 Pacific Street	6	55	33 (4 class C)	F	Individual owner
20	722 Bergen Street	8	53.8	43 (8 class C)	F	EL DORADO LP
21	787 Dean Street	8	52.5	42 (7 class C)	F	CMS MANAGEMENT CORP
22	197 St Marks Avenue	6	50	30 (1 class C)	F	197 ST.MARKS AVE LLC
23	931 Pacific Street	8	47.5	38 (2 class C)	D	931 PACIFIC REALTY CORP
24	179 St Marks Avenue	10	47	47 (4 class C)	F	L,V,EQUITIES INC
25	93 St Marks Avenue	7	44.3	31 (1 class C)	D	Individual owner
26	326 Lincoln Place	35	44	154 (50 class C)	F	LINCOLN PLACE 326 LLc
27	754 Washington Avenue	6	43.3	26 (1 class C)	D	Individual owner
28	340 St Johns Place	58	42.8	248 (60 class C)	F	BEC CONTINUUM OWNER LLC (City program owner (HDFC))
29	832 Washington Avenue	8	42.5	34 (6 class C)	F	Not on file
30	499 St Johns Place	6	41.7	25 (5 class C)	D	ST JOHNS ASSOCIATES LLC
31	95 Eastern Parkway	45	39.6	178 (99 class C)	F	EPKY 7395 LLC
32	180 Prospect Place	16	39.4	63 (27 class C)	F	PROSPECT REALTY LLC
33	501 Dean Street	8	37.5	30 (11 class C)	F	501 DEAN ST LLC
34	73 Eastern Parkway	22	37.3	82 (17 class C)	F	Not on file
35	501 St Johns Place	6	36.7	22 (0 class C)	D	ST JOHNS ASSOCIATES LLC
36	189 St Marks Avenue	8	33.8	27 (5 class C)	D	Not on file
37	324 Park Place	8	33.8	27 (1 class C)	F	324 PARK PLACE ASSOCIATES
38	794 Washington Avenue	8	33.8	27 (9 class C)	F	NJS REALTY LLC
39	349 St Johns Place	16	32.5	52 (0 class C)	D	R D S O ASSOCIATES LLC
40	133 St Marks Avenue	8	32.5	26 (4 class C)	D	Individual owner
41	347 Lincoln Place	58	31.9	185 (63 class C)	F	ALP 347 Associates LLC
42	206 Park Place	6	31.7	19 (0 class C)	C	206 PARK PLACE LLC
43	372 St Johns Place	16	30	48 (2 class C)	F	DELCONA LLC
44	660 Washington Avenue	9	30	27 (10 class C)	F	Not on file
45	147 Prospect Place	6	30	18 (0 class C)	C	Individual owner
46	443 Lincoln Place	6	30	18 (2 class C)	F	443 LINCOLN LLC
47	243 Saint Marks Avenue	8	28.8	23 (3 class C)	F	D.N.A. REALTY LLC
48	429 Sterling Place	8	28.8	23 (8 class C)	F	PROSPECT HEIGHTS PORTFOLIO LLC
49	810 Washington Avenue	6	28.3	17 (5 class C)	D	M & M PROSPECT HEIGHTS, LLC
50	82 Prospect Place	7	27.1	19 (10 class C)	F	82 PROSPECT PL LLC
51	804 Classon Avenue	7	25.7	18 (11 class C)	F	RICO'S PLACE HDFC (City program owner (HDFC))
52	816 Washington Ave	8	25	20 (2 class C)	F	Not on file
53	391 St Johns Place	16	24.4	39 (22 class C)	F	M AND M CENTURY GROUP LLC
54	174 St Marks Avenue	8	23.8	19 (8 class C)	D	D N-DIAYE 174 ST. MARKS, LLC
55	290 Lincoln Place	19	23.7	45 (19 class C)	F	M&M LINCOLN REALTY, LLC
56	742 Washington Avenue	6	23.3	14 (3 class C)	D	742 REALTY LLC
57	323 Lincoln Place	10	23	23 (9 class C)	F	323 Lincoln LLC
58	790 Washington Avenue	14	22.9	32 (3 class C)	D	Individual owner
59	686 Washington Avenue	7	22.9	16 (0 class C)	C	Individual owner
60	556 Dean Street	8	22.5	18 (7 class C)	D	Not on file
61	570 Vanderbilt Avenue	6	21.7	13 (3 class C)	D	570 VANDERBILT LLC
62	93 6th Avenue	7	21.4	15 (3 class C)	F	93 6 AVE CORPORATION
63	750 Washington Avenue	16	21.3	34 (15 class C)	F	750 WASHINGTON PARTNERS LLC
64	249 Prospect Place	8	21.3	17 (10 class C)	F	First May LLC
65	292 St Johns Place	16	20.6	33 (11 class C)	F	FLGSP 292 St. Johns Place LLC
66	267 Flatbush Avenue	9	20	18 (1 class C)	D	FLATPARK REALTY
67	425 Sterling Place	8	20	16 (12 class C)	F	425 STERLING LLC
68	85 Eastern Parkway	41	19	78 (8 class C)	D	85 EP LLC
69	329 Lincoln Place	10	19	19 (6 class C)	F	Not on file
70	664 Washington Avenue	9	18.9	17 (0 class C)	D	Individual owner
71	347 St Marks Avenue	8	18.8	15 (6 class C)	F	347-ST MARKS AVE LLC
72	255 Prospect Place	8	18.8	15 (0 class C)	B	255 PROSPECT REALTY LLC
73	473 St Johns Place	16	18.1	29 (14 class C)	F	473 Saint Johns Place LLC
74	136 Prospect Place	10	18	18 (1 class C)	D	PROSPECTVIEW HOLDINGS LLC
75	345 St Johns Place	20	17.5	35 (4 class C)	D	RDSO ASSOCIATES, L.L.C
76	130 Park Place	8	17.5	14 (0 class C)	B	130 PARK PLACE LLC
77	509 Dean Street	8	17.5	14 (1 class C)	F	DEAN NY PROPERTIES LLC
78	353 Prospect Place	8	17.5	14 (0 class C)	B	353 PROSPECT, LLC
79	842 Classon Avenue	8	17.5	14 (9 class C)	F	RAMOU HOMECORP LLC
80	392 St Johns Place	39	16.9	66 (36 class C)	F	M & M CENTURY GROUP, LLC
81	285 St Johns Place	32	16.9	54 (16 class C)	F	M &M REALTY ASSOCIATES, LLC
82	656 Dean Street	6	16.7	10 (0 class C)	F	656 DEAN ST CONSTRUCTION CORP
83	364 Prospect Place	16	16.3	26 (17 class C)	F	GREGENE HDFC (City program owner (HDFC))
84	399 St Johns Place	16	15.6	25 (8 class C)	F	M&M CENTURY GROUP, LLC
85	262 St Marks Avenue	8	15	12 (1 class C)	F	BEC CONTINUUM OWNER LLC (City program owner (HDFC))
86	581 Vanderbilt Avenue	6	15	9 (3 class C)	F	581 PLAZA LLC.
87	446 St Johns Place	32	14.4	46 (18 class C)	F	SM 446 LLC
88	179 Park Place	10	14	14 (2 class C)	C	WHALSINGHAM HOLDINGS LLC
89	210 Park Place	20	12.5	25 (5 class C)	F	210 PARK PL HOLDINGS LLC
90	442 Sterling Place	20	12.5	25 (11 class C)	F	PROSPECT HEIGHTS PORTFOLIO LLC
91	357 St Johns Place	16	11.9	19 (6 class C)	F	341 REALTY LLC
92	458 Saint Johns Place	60	11.8	71 (3 class C)	D	EBF WASHINGTON LLC
93	665 Vanderbilt Avenue	6	11.7	7 (0 class C)	C	Not on file
94	272 Lincoln Place	19	11.6	22 (5 class C)	F	M & M LINCOLN REALTY, LLC
95	364 Lincoln Place	54	11.5	62 (17 class C)	F	364 Lincoln Owner LLC
96	89 6th Avenue	7	11.4	8 (2 class C)	C	Not on file
97	76 St Marks Avenue	15	11.3	17 (2 class C)	C	76-82 St. Marks SPE, LLC
98	166 Underhill Avenue	16	11.3	18 (0 class C)	D	Not on file
99	12 Underhill Avenue	8	11.3	9 (1 class C)	F	B UNDERHILL LLC
100	533 Bergen Street	8	11.3	9 (2 class C)	D	431 BROOME LLC

The full list for Prospect Heights, up to 100 buildings. Each row is the record, not a verdict.

More for Prospect Heights: rent-stabilized buildings, best buildings, heat complaints, and the Prospect Heights page.

Sources: NYC HPD housing maintenance code violations, HPD property registrations and housing litigation, 311 service requests, DOB violations, NYC Marshals evictions, and HPD bedbug filings from NYC Open Data, plus rent-stabilized unit counts from NYC Department of Finance tax bills. How grades work.