What is the rent for a studio at 340 21 STREET, Brooklyn, NY, 11215?

Based on recent listing data, rent for a studio at 340 21 STREET, Brooklyn, NY, 11215 is approximately $3,375 per month.

What is the rent for a 1-bedroom at 340 21 STREET, Brooklyn, NY, 11215?

Based on recent listing data, rent for a 1-bedroom at 340 21 STREET, Brooklyn, NY, 11215 is approximately $4,050 per month.

What is the rent for a 2-bedroom at 340 21 STREET, Brooklyn, NY, 11215?

Based on recent listing data, rent for a 2-bedroom at 340 21 STREET, Brooklyn, NY, 11215 is approximately $5,800 per month.

What is the rent for a 3-bedroom at 340 21 STREET, Brooklyn, NY, 11215?

Based on recent listing data, rent for a 3-bedroom at 340 21 STREET, Brooklyn, NY, 11215 is approximately $9,250 per month.

What is the rent for a 4-bedroom at 340 21 STREET, Brooklyn, NY, 11215?

Based on recent listing data, rent for a 4-bedroom at 340 21 STREET, Brooklyn, NY, 11215 is approximately $7,850 per month.

How does rent at 340 21 STREET, Brooklyn, NY, 11215 compare to the neighborhood?

Compared to other buildings in the 11215 zip code: studio rents are about average for the area; 1-bedroom rents are about 16% above the neighborhood median; 2-bedroom rents are about 12% below the neighborhood median; 3-bedroom rents are about 12% above the neighborhood median; 4-bedroom rents are about 35% above the neighborhood median.

Is 340 21 STREET, Brooklyn, NY, 11215 rent stabilized?

Yes, 340 21 STREET, Brooklyn, NY, 11215 is rent stabilized with 8 stabilized units. Rent-stabilized tenants have protections limiting annual rent increases and providing lease renewal rights.

When is the cheapest time to rent at 340 21 STREET, Brooklyn, NY, 11215?

Based on historical listing data, November tends to be the most affordable month to sign a lease at 340 21 STREET, Brooklyn, NY, 11215, while July is typically the most expensive. Timing your move to November could save approximately 7% compared to peak pricing.

Who is the landlord of 340 21 STREET, Brooklyn, NY, 11215?

The registered owner of 340 21 STREET, Brooklyn, NY, 11215 is 340 REALTY LLC. You can view their full portfolio of buildings on Lucid Rents.

Is the landlord of 340 21 STREET, Brooklyn, NY, 11215 a good landlord?

340 21 STREET, Brooklyn, NY, 11215, owned by 340 REALTY LLC, has an overall grade of D (1.5/5) on Lucid Rents. The building has 18 recorded violations. Tenants have left 2 reviews. Check tenant reviews for firsthand experiences.

What is the building rating for 340 21 STREET, Brooklyn, NY, 11215?

340 21 STREET, Brooklyn, NY, 11215 has an overall grade of D with a score of 1.5 out of 5 on Lucid Rents. This score is based on violations, complaints, and tenant reviews.

Are there violations or complaints at 340 21 STREET, Brooklyn, NY, 11215?

Yes, 340 21 STREET, Brooklyn, NY, 11215 has 18 housing violations and 14 complaints on record. Visit the building page on Lucid Rents to see the full history, including violation classes and complaint types.

What amenities does 340 21 STREET, Brooklyn, NY, 11215 have?

340 21 STREET, Brooklyn, NY, 11215 offers 3 amenities including Good Cause, Rent Stabilized, Has Evictions. View the full amenity list on the building page.

What schools are near 340 21 STREET, Brooklyn, NY, 11215?

There are 10 schools near 340 21 STREET, Brooklyn, NY, 11215, including 4 public schools, 3 charter schools, 3 private schools. Nearby schools include P.s. K053 (3 min walk), P.s. K053 (3 min walk), J.h.s. 088 Peter Rouget (3 min walk), P.s. 295 (3 min walk), Hellenic Classical Charter School (6 min walk), and more.

What public transit is near 340 21 STREET, Brooklyn, NY, 11215?

340 21 STREET, Brooklyn, NY, 11215 has 4 transit options nearby. The closest include: bus: 7 AV/19 ST (B67, B69), 0.15 mi away.

Is 340 21 STREET, Brooklyn, NY, 11215 safe? What is the crime rate nearby?

The 11215 zip code where 340 21 STREET, Brooklyn, NY, 11215 is located had 1,135 crime incidents in the past 2 years, including 80 violent crimes, 466 property crimes, and 589 quality-of-life incidents. Check the neighborhood report card for 11215 for full details.

When was 340 21 STREET, Brooklyn, NY, 11215 built and how many units does it have?

340 21 STREET, Brooklyn, NY, 11215 was built in 1931, has 4 floors, contains 8 total units.

What do tenants say about living at 340 21 STREET, Brooklyn, NY, 11215?

340 21 STREET, Brooklyn, NY, 11215 has 2 tenant reviews with an average rating of 1.5 out of 5. 0 out of 2 reviewers would recommend this building.

340 21 STREET — Rent Intelligence for Park Slope, NYC

Park Slope · Brooklyn, NY, 11215

Built 19314 floors8 unitsBBL 3008980032

Current rent range

$3,375 – $9,250 / mo

5 bedroom bands tracked · sampled from recent listings · rent stabilized

Leave a review

★★★★★1.52 reviews

Verified reviews3ROwned by340 REALTY LLC3 bldgs

340 21 STREET

Brooklyn, NY, 11215

340 21 STREET is a mid-century 1931 building, 8 units in Park Slope, NYC. Owned by 340 REALTY LLC. Public records show 21 open violations, 14 311 complaints, 3 active litigation matters on file. Rent stabilization on file covers 8 units (registered 2024). Lucid Rents has 2 verified tenant reviews on this building.

HPD violations18last 7 years · class A, B, C

Evictions filed0last 7 years

Tenant reviews21.5 ★ avg

Rent-stab units8DHCR records

Building age95 ybuilt 1931

311 complaints14last 7 years

01 / 10

Rental intelligence.

Neighborhood Median Rent

Brooklyn · February 2026

Studio

$3,375/mo

1 listing

1 BR

$4,050/mo

1 listing

2 BR

$5,800/mo

1 listing

3 BR

$9,250/mo

1 listing

4 BR

$7,850/mo

1 listing

This building is rent stabilized — actual rents typically trade below neighborhood medians.

Seasonal Pattern

Best & worst months to sign a lease

Cheapest

November

Most expensive

July

JFMAMJJASOND

Potential savings: ~7% by timing your move to November.

Rent vs. area median Brooklyn

Studio

This building: $3,375 – $3,375

2% aboveArea: $3,300

1 BR

This building: $4,050 – $4,050

16% aboveArea: $3,500

2 BR

This building: $5,800 – $5,800

12% belowArea: $6,625

3 BR

This building: $9,250 – $9,250

12% aboveArea: $8,285

4 BR

This building: $7,850 – $7,850

35% aboveArea: $5,795

Units Historic Rent 0 listings

—No dataNo recent listings

Neighborhood Rent Range Brooklyn

Studio1 listing

$3,375

$3,100 – $3,850

1 Bed1 listing

$3,500

$3,500

2 Bed1 listing

$5,800

$5,292 – $7,188

3 Bed1 listing

$9,250

$7,860 – $8,674

4 Bed1 listing

$5,795

$5,795

Range (P25 – P75)MedianBased on recent listings in Brooklyn

01 / 09

Rental intelligence.

01b / 09

Rent trends.

Prospect Park

Quarterly market rent, 2014–2026 (latest = Q1 2026 forecast)

Asking rent

$3,296

current quarter

Effective rent

—

per bedroom only

YoY change

-0.4%

asking, vs 1 yr ago

10-year change

16%

asking, since ~'16

Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.

01b / 09

Rent trends.

02 / 10

Neighborhood risks.

within 0.75 mi

69 nearby

within 0.75 mi

Public-safety

shelters, methadone, halfway, sex offenders

24/7 Noise

sirens, construction, schools, rail, avenue traffic

Environmental

brownfields, industrial zones, sanitation

Block-level

1401

311 noise, rats, bedbug history

Sources: NYC DHS · DOB · 311 · DSNY · FDNY · NYS DCJS · NYS DECSee full report

02 / 10

Neighborhood risks.

02 / 10

Violations, 311, & more.

hpd · dob · 311 · acris
last 7 years

Violation & Complaint Trends

Monthly counts over the last 7 years · all data sources

Worsening

HPDTop Violations

18 total

Pest Infestation
5
Smoke/CO Detector
3
Door/Lock
3
Water Leak
1

311Top Complaints

14 total

Illegal Fireworks
7
Noise
2
Request Large Bulky Item Collection
2
UNSANITARY CONDITION
1
Water System
1

DOBTop Filings

3 total

DOB Violations
3

EvictionsEvictions

0 filed

Evictions filed
0

Violations by Unit

(3 units)

UnitViolationsOpenLast Inspected

Recent records

Last 7 years

Class ANOV SENT OUTMay 1, 2026
(A) § HMC: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.
Class IINFO NOV SENT OUTNov 19, 2025
§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 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.
Class BNOV CERTIFIED LATEMar 6, 2025
§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE STUCCO AT SOUTH WALL OF THE BUILDING , 1st STORY
Class BNOV CERTIFIED LATEMar 6, 2025
§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 8, 4th STORY
Class CVIOLATION CLOSEDMar 6, 2025
§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( 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 8, 4th STORY

See all 18 HPD records

02 / 09

Violations, 311, & more.

03 / 10

What tenants actually say.

1.5 /5

★ ★ ★ ★ ★

2 reviews

5★

4★

3★

2★

50%

1★

50%

Pros: area is great, very nice neighbors but no one stays cause it’s a dump Cons: infested with mice, bed bugs, roaches. the owner is hostile or pretends to not know the building is falling apart. One tenant even mentio…

negativeFeb 2022

Anonymous

Pros: - It's a great location - Cheap rent - great respectful neighbors Cons: - Unresponsive and rude landlord - consistent bed bug problems (which we only found out about because the renters called a meeting to talk ab…

negativeJan 2022

Anonymous

View all 2 reviews

03 / 09

What tenants actually say.

04 / 10

Building amenities.

Building Amenities

3 amenities

OTHER

Good Cause
Rent Stabilized
Has Evictions

04 / 09

Building amenities.

05 / 10

The landlord.

340 REALTY LLC

Portfolio of 3 buildingsHead officer: MEIR KOHNMail: 109 BROADWAY, BROOKLYN, NY, 11249

Portfolio-level grade reflects the landlord's buildings across NYC, weighted by unit count. Individual building grades may differ.

View full landlord profile

buildings

1.5

avg score / 5

portfolio grade

nearby owned

Ownership timeline · this building

ACRIS deeds and regulatory filings

1931Building constructed8 units · 4 floors
now340 REALTY LLCOwner of record per HPD registration · manages 3 buildings · registration active through 2025-09-01.

05 / 09

The landlord.

06 / 10

Crime & safety.

11215 · last 12 months

Safety & Crime

Very safeSafety score · last 12 months

NYPD CompStat · updated weekly

LAST 12 MONTHS · 11215

Violent80

Property466

Quality-of-life589

Total incidents1,135

07 / 10

About this area.

Park Slope · 11215

340 21 STREET · Brooklyn · 40.659° N, -73.990° W

Walk

Transit

Bike

Estimated from nearby transit & amenity data

4 bus stops nearby3 min

7 schools nearby3 min

Nearby Transit

BUS

7 AV/19 STB67B69
0.1 mi3 min
7 AV/18 STB67B69
0.1 mi3 min
20 ST/8 AVB67B69
0.2 mi4 min
5 AV/21 STB63
0.2 mi5 min

Nearby Schools & Colleges

PUBLIC SCHOOLS

P.s. K053K-12
0.1 mi3 min
P.s. K053K-12
0.1 mi3 min
J.h.s. 088 Peter RougetMiddle School
0.1 mi3 min
P.s. 295Elementary
0.1 mi3 min

CHARTER SCHOOLS

Hellenic Classical Charter SchoolK-8
0.3 mi6 min
Hellenic Classical Charter School Park SlopeCharter
0.3 mi6 min
Brooklyn Urban Garden Charter SchoolMiddle School
0.4 mi9 min

PRIVATE SCHOOLS

Mesilas Bais YaakovHigh School
0.3 mi5 min
Al-Noor SchoolElementary
0.4 mi7 min
St Joseph The Worker Catholic AcadElementary
0.5 mi10 min

The neighborhood

Park Slope

South Park Slope and the Gowanus borderlands offer the brownstone beauty of Park Slope with slightly more edge — the Gowanus Canal is being cleaned up, Old Stone House park hosts community events, and Fifth Avenue's bar and restaurant scene is unpretentious and local.

18,165buildings tracked4.6avg LucidIQ$3,500median 1BR

72,014population$174kmedian income60%renters

BrownstonesCommunity FeelFoodieEvolvingWalkable

Explore Park Slope

Neighborhood overview

Park Slope→

Vibe · top buildings · landlords · schools · transit

Crime in 11215

See full breakdown→

Incident type · 6-month trend · vs. New York City average

Rent trends in Park Slope

Median rent & comparables→

1BR & 2BR averages · month-over-month · current listings

Nearby neighborhoods to explore

Sunset Park· 0.22 mi Park Slope· 1.1 mi Brooklyn Heights· 1.36 mi Prospect Heights· 1.48 mi Bedford-Stuyvesant· 1.84 mi

Browse all NYC neighborhoods

06 / 10

Crime & safety.

07 / 10

About this area.

08 / 10

History of the building.

construction · ownership · permits

At a glance

Year built1931

Floors4

Total units8

Rent-stab units8

ClassC1

BBL3008980032

19301940195019601970198019902000201020202030

1931

Building constructed

8 units · 4 floors · class C1

2024

Rent stabilization on file

8 stabilized units registered.

now

Current owner: 340 REALTY LLC

Portfolio includes 3 buildings.

Recent Activity

20 events

HPDLOWMay 1, 2026
HPD Class A Violation — (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR
HPDHIGHNov 19, 2025
HPD Class I Violation — §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-20
311MEDIUMNov 14, 2025
Illegal Parking — Double Parked Blocking Traffic
HPDMEDIUMMar 6, 2025
HPD Class B Violation — § 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE STUCCO AT SOUTH WALL OF THE BUILDING ,
HPDMEDIUMMar 6, 2025
HPD Class B Violation — § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 8, 4th STORY
HPDHIGHMar 6, 2025
HPD Class C Violation — § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSI
HPDHIGHMar 6, 2025
HPD Class C Violation — § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSI
HPDHIGHMar 6, 2025
HPD Class C Violation — § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSI
HPDMEDIUMMar 6, 2025
HPD Class B Violation — § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3, 2nd STORY
HPDMEDIUMMar 6, 2025
HPD Class B Violation — § 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE W

07 / 09

History of the building.

10 / 10

Frequently asked questions.

What is the rent for a studio at 340 21 STREET, Brooklyn, NY, 11215?
Based on recent listing data, rent for a studio at 340 21 STREET, Brooklyn, NY, 11215 is approximately $3,375 per month.
What is the rent for a 1-bedroom at 340 21 STREET, Brooklyn, NY, 11215?
Based on recent listing data, rent for a 1-bedroom at 340 21 STREET, Brooklyn, NY, 11215 is approximately $4,050 per month.
What is the rent for a 2-bedroom at 340 21 STREET, Brooklyn, NY, 11215?
Based on recent listing data, rent for a 2-bedroom at 340 21 STREET, Brooklyn, NY, 11215 is approximately $5,800 per month.
What is the rent for a 3-bedroom at 340 21 STREET, Brooklyn, NY, 11215?
Based on recent listing data, rent for a 3-bedroom at 340 21 STREET, Brooklyn, NY, 11215 is approximately $9,250 per month.
What is the rent for a 4-bedroom at 340 21 STREET, Brooklyn, NY, 11215?
Based on recent listing data, rent for a 4-bedroom at 340 21 STREET, Brooklyn, NY, 11215 is approximately $7,850 per month.
How does rent at 340 21 STREET, Brooklyn, NY, 11215 compare to the neighborhood?
Compared to other buildings in the 11215 zip code: studio rents are about average for the area; 1-bedroom rents are about 16% above the neighborhood median; 2-bedroom rents are about 12% below the neighborhood median; 3-bedroom rents are about 12% above the neighborhood median; 4-bedroom rents are about 35% above the neighborhood median.
Is 340 21 STREET, Brooklyn, NY, 11215 rent stabilized?
Yes, 340 21 STREET, Brooklyn, NY, 11215 is rent stabilized with 8 stabilized units. Rent-stabilized tenants have protections limiting annual rent increases and providing lease renewal rights.
When is the cheapest time to rent at 340 21 STREET, Brooklyn, NY, 11215?
Based on historical listing data, November tends to be the most affordable month to sign a lease at 340 21 STREET, Brooklyn, NY, 11215, while July is typically the most expensive. Timing your move to November could save approximately 7% compared to peak pricing.
Who is the landlord of 340 21 STREET, Brooklyn, NY, 11215?
The registered owner of 340 21 STREET, Brooklyn, NY, 11215 is 340 REALTY LLC. You can view their full portfolio of buildings on Lucid Rents.
Is the landlord of 340 21 STREET, Brooklyn, NY, 11215 a good landlord?
340 21 STREET, Brooklyn, NY, 11215, owned by 340 REALTY LLC, has an overall grade of D (1.5/5) on Lucid Rents. The building has 18 recorded violations. Tenants have left 2 reviews. Check tenant reviews for firsthand experiences.
What is the building rating for 340 21 STREET, Brooklyn, NY, 11215?
340 21 STREET, Brooklyn, NY, 11215 has an overall grade of D with a score of 1.5 out of 5 on Lucid Rents. This score is based on violations, complaints, and tenant reviews.
Are there violations or complaints at 340 21 STREET, Brooklyn, NY, 11215?
Yes, 340 21 STREET, Brooklyn, NY, 11215 has 18 housing violations and 14 complaints on record. Visit the building page on Lucid Rents to see the full history, including violation classes and complaint types.
What amenities does 340 21 STREET, Brooklyn, NY, 11215 have?
340 21 STREET, Brooklyn, NY, 11215 offers 3 amenities including Good Cause, Rent Stabilized, Has Evictions. View the full amenity list on the building page.
What schools are near 340 21 STREET, Brooklyn, NY, 11215?
There are 10 schools near 340 21 STREET, Brooklyn, NY, 11215, including 4 public schools, 3 charter schools, 3 private schools. Nearby schools include P.s. K053 (3 min walk), P.s. K053 (3 min walk), J.h.s. 088 Peter Rouget (3 min walk), P.s. 295 (3 min walk), Hellenic Classical Charter School (6 min walk), and more.
What public transit is near 340 21 STREET, Brooklyn, NY, 11215?
340 21 STREET, Brooklyn, NY, 11215 has 4 transit options nearby. The closest include: bus: 7 AV/19 ST (B67, B69), 0.15 mi away.
Is 340 21 STREET, Brooklyn, NY, 11215 safe? What is the crime rate nearby?
The 11215 zip code where 340 21 STREET, Brooklyn, NY, 11215 is located had 1,135 crime incidents in the past 2 years, including 80 violent crimes, 466 property crimes, and 589 quality-of-life incidents. Check the neighborhood report card for 11215 for full details.
When was 340 21 STREET, Brooklyn, NY, 11215 built and how many units does it have?
340 21 STREET, Brooklyn, NY, 11215 was built in 1931, has 4 floors, contains 8 total units.
What do tenants say about living at 340 21 STREET, Brooklyn, NY, 11215?
340 21 STREET, Brooklyn, NY, 11215 has 2 tenant reviews with an average rating of 1.5 out of 5. 0 out of 2 reviewers would recommend this building.

09 / 09

Frequently asked questions.

10 / 10

NYC-specific insights.

Rent stabilization and seismic safety

Rent stabilizationProtected

DHCR registration & tenant protections

Yes

rent stabilized

stabilized units

2024

since

Stabilized units have annual rent-increase caps set by the Rent Guidelines Board and lease-renewal rights.

09 / 10

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08 / 09

Similar buildings nearby.

Embed this building’s record

Drop this scorecard into a tenant guide, blog post, or wiki. It updates itself as new violations are filed.

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Building record last updated October 10, 2026. Sourced from HPD, DOB, 311, and Lucid Rents data syncs.