---
title: "343 6th Avenue #4, New York City, NY 11215"
description: "343 6th Avenue #4, New York City, NY 11215 — Single Family Brownstone in Park Slope, Brooklyn, NY. Last Sold Price $4,999,999. Sold on 8/17/2026. 3 bed, 3 bath, 2,165 sqft"
url: "https://realestaterebatesnewyork.com/buy/newyorkcity/brooklyn/11215/343-6th-avenue-4-ny-11215"
source: "Real Estate Rebate Team"
status: "Closed"
---

# 343 6th Avenue #4, New York City, NY 11215

Single Family Brownstone in Park Slope, Brooklyn, NY

Courtesy of Corcoran Group

## At a Glance

- **Last Sold Price**: $4,999,999
- **Status**: Sold on 8/17/2026
- **Beds**: 3
- **Baths**: 3
- **Sqft**: 2,165
- **Common Charges**: $1,067 / mo
- **Monthly Taxes**: $455 / mo
- **Price per Sqft**: $2,309
- **Brokerage Fee**: Share Eligible

This listing was successfully closed and is no longer active on the market.

[Planning to sell? Contact Régis Roumila](https://realestaterebatesnewyork.com/contact)

## Photos (10)

![343 6th Avenue #4, New York City, NY 11215 — photo 1 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/efd68f54-ae7a-4dde-b8cf-5c7370b2f8ce.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 2 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f3bef4fa-cb1b-49c1-8296-19dda4f12c48.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 3 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/cdf35bfb-1a29-45af-a13c-981241f807af.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 4 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/eca1f1e3-ab06-45d7-919e-62f8e058988a.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 5 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/fe025b5a-836f-45d9-931c-659cab831c83.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 6 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/e8f28d0b-0faf-4f65-a5da-68dbab3a8a3e.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 7 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/ce952cf8-009b-423a-8d3e-75aa626c4291.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 8 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/3cdc42da-b09b-4765-b117-eb0e5d493cfe.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 9 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/05e83ef5-120b-41e5-8b6b-be667abd0b84.jpg)
![343 6th Avenue #4, New York City, NY 11215 — photo 10 of 10](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/d7c21b78-9da9-4d73-8d78-1a2868296531.jpg)

## Property Overview

Rarely does a home combine the scale, privacy, and outdoor living of a brownstone with the convenience of elevator condominium living. Occupying the entire top floor of a boutique condominium building, this elevator accessible three-bedroom-plus-den, three-bathroom penthouse spans 2,165 square feet, and is complemented by an extraordinary private roof terrace crafted for seamless indoor-outdoor living.

 Wrapped in twenty oversized windows on four exposures, this residence is flooded with sunlight from sunrise to sunset, with sweeping sky views and exceptional privacy throughout.

 A keyed elevator opens directly into the home, revealing the thoughtfully designed living space. White-oak herringbone floors, soaring ceilings, walnut millwork, and an open floor plan create an atmosphere that is elegant, comfortable, and welcoming.

 The heart of the home is a dramatic 28 foot-wide great room where expansive living and dining areas are framed by treetop views and open sky. A gas fireplace, built-in shelving, and abundant natural light create a setting equally suited to everyday family life and large-scale entertaining. Throughout the seasons, the views transform from lush summer greenery to golden autumn leaves; to snow-covered branches in winter; and to flowering pear trees in spring.

 French doors open to a den lined with walnut shelving and built-in storage. Currently configured as a home office, the space easily functions as a library, nursery, playroom or fourth bedroom.

 The award-winning kitchen pairs beauty with functionality, featuring solid wood cabinetry by purekitchen-imperia, Carrara marble backsplash wall, a generous waterfall island, Wolf cooking appliances, Sub-Zero refrigeration, Miele dishwasher, and ample workspace for cooking, gathering, and entertaining.

 Privately situated at the opposite end of the residence, the primary suite enjoys triple exposures, abundant closet space, and open views extending across neighboring brownstone gardens. The spa-inspired bath features radiant heated floors, a soaking tub, walk-in shower with teak flooring, detailed vanity cabinetry, and Waterworks fixtures. Two additional bedrooms offer excellent closet space and skyline views - including One World Trade Center - and are served by two beautifully appointed full bathrooms.

 Additional features include a dedicated laundry room with ample storage, zoned central HVAC, integrated Sonos audio, on-demand hot water, and top-of-the-line double-paned windows providing maximum insulation and noise reduction.

 The crown jewel of the residence is an approximately 800-square-foot private rooftop terrace and garden with sweeping views extending to the Manhattan skyline. The rooftop functions as an outdoor wing of the home. Accessible by both elevator and stairs, this remarkable space has been designed for living, dining, cooking, entertaining, and gardening.

 A wisteria-covered pergola anchors the outdoor living area, while mature landscaping, flowering trees, roses, hydrangeas, and seasonal gardens create a level of tranquility rarely found in New York City. The fully equipped outdoor kitchen features ipe-clad cabinetry, a premium DCS grill with rotisserie, power side burner, refrigerator, freezer, hot/cold running water, Dekton countertops, and generous preparation space. Whether hosting sunset dinners against the Manhattan skyline, tending a morning garden, or enjoying a quiet evening beneath the stars, the rooftop serves as a seamless extension of the home below.

 343 Sixth Avenue is a modern boutique elevator condominium built from the ground up by Ramon Maizlin and Sugar Hill Capital Partners, the team behind the acclaimed One Prospect Park West, distinguished by exceptionally low carrying costs and a valuable J-51 tax abatement. Located on one of Park Slope's quintessential tree-lined blocks and zoned for PS 321, the building is moments from Prospect Park,

## Property Details

- **Property Type**: Condominium
- **Beds**: 3
- **Baths**: 3
- **Rooms**: 7
- **Sqft**: 2,165 sqft
- **Stories**: 4
- **Year Built**: 1920
- **Price per Sqft**: $2,309
- **Common Charges**: $1,067 / Monthly
- **Monthly Taxes**: $455 / mo
- **Listed On**: Jun 10, 2026
- **Days on Market**: 103 Days

### Residence Features

- Central Air
- Common On Floor
- Washer Hookup
- In Unit
- See Remarks
- Building Roof Deck
- Private Outdoor Space Over 60 Sqft
- Eat-in Kitchen
- High Ceilings
- Soaking Tub
- Walk-In Closet(s)
- Dishwasher
- Freezer
- Refrigerator
- Bay Window(s)
- City
- Panoramic

## Estimated Monthly Payment

**$26,805 / month**, assuming a 20% down payment ($1,000,000), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three.

- **Principal & Interest**: $25,283
- **Property Taxes**: $455
- **Common Charges**: $1,067

Estimates only. Actual payments may vary. Confirm terms with your lender.

## Sales and market data

### Recent sales

3 apartments at 343 6th Avenue have recorded sales since September 2021, the most recent for $4,999,999 in August 2026. Prices are the figures recorded with the City, not asking prices.

| Unit | Beds | Sq Ft | Sold Price | $/ft² | Sold | Source |
| --- | --- | --- | --- | --- | --- | --- |
| 4 (Apartment) | 3 | 2,165 | $4,999,999 | $2,309/ft² | August 17, 2026 | MLS |
| 2 (Apartment) | 4 | 2,165 | $3,825,000 | $1,767/ft² | October 4, 2024 | City record · MLS |
| 1-A (Duplex) | 3 | 2,035 | $3,050,000 | $1,499/ft² | January 4, 2022 | City record · MLS |

Every row is a recorded transaction, including ancillary spaces such as storage and staff rooms where they were sold separately. Those are excluded from the benchmark below.

### How this price compares

- **Last sold price**: $4,999,999
- **Median sold price**: $2,272,652
- **Difference**: +$2,727,347 (+120%)
- **Last sold, $/ft²**: $2,309
- **Median $/ft²**: $1,530
- **Comparable sales**: 36
- **Sales from**: October 2024 – June 2026
- **Middle half of those sales**: $1,993,750 – $2,875,825

Based on condo three-bedroom sales in Park Slope.

This building has not had enough comparable sales of its own in the period to support a median, so the benchmark is drawn from Park Slope instead.

### How these sales were negotiated

- **Sale-to-list price**: 100% (33 sales)
- **Sold below asking**: 39% (33 sales)
- **Typical time to find a buyer**: 50 days (33 sales)
- **Typical time to close**: 64 days (32 sales)

Based on condo three-bedroom sales in Park Slope with the required listing and closing data. Sample sizes vary by metric.

These are two separate periods measured on different clocks — time to find a buyer, and time from agreed deal to closing. They are medians of different sets of sales and do not add together into a single "days on market" figure.

### Price trend

Median sale price, condo and house three-bedroom sales in Park Slope

| Year | Median sold price | Sales |
| --- | --- | --- |
| 2017 | $1,826,425 | 22 |
| 2018 | $1,627,500 | 14 |
| 2020 | $1,830,000 | 11 |
| 2021 | $1,730,000 | 38 |
| 2022 | $3,233,200 | 42 |
| 2024 | $2,138,125 | 10 |
| 2025 | $2,050,000 | 19 |
| 2026 YTD | $2,610,000 | 16 |

Based on recorded condo and house three-bedroom sales in Park Slope. 2026 is year-to-date.

Sales data through August 2026.

Sale prices are the consideration recorded with the City in ACRIS, and each sale is dated by the day the City recorded it. A closing date reported to the MLS typically falls one to two weeks earlier. Recorded sales describe what has already happened and are not an appraisal, a valuation, or an estimate of what this home will sell for.

[See every recorded sale at 343 6TH Avenue](https://realestaterebatesnewyork.com/buildings/new-york-city/brooklyn/343-6th-avenue)

## Price and Property History for 343 6th Avenue, Unit 4

Review the recorded listing activity for 343 6th Avenue, Unit 4, including asking-price changes and prior market dates.

- **Latest price change**: Reduced by $250,001, or 4.8%, on August 17, 2026
- **Originally listed**: June 10, 2026 at $5,250,000
- **Last sold**: $4,999,999 on August 17, 2026

| Date | Price | Listing event |
| --- | --- | --- |
| August 17, 2026 | $4,999,999 | Sold |
| August 17, 2026 | $4,999,999 | Asking price reduced by $250,001, or 4.8% |
| July 5, 2026 | $5,250,000 | Entered contract |
| June 10, 2026 | $5,250,000 | Listed for sale by Corcoran Group |

## Property Tax History

Taxes at 343 6th Avenue #4 were $7,743 in 2026, up 3.9% from 2025.

| Year | Tax Assessment | Land | Additions | Billable Value | Property Tax | Tax Rate |
| --- | --- | --- | --- | --- | --- | --- |
| 2026 (FY 2026/27) | $168,574 | $6,327 | $162,247 | $79,139 | $7,743 | 12.5% (estimated) |
| 2025 (FY 2025/26) | $140,478 | $6,327 | $134,151 | $76,031 | $7,452 | 12.5% (estimated) |
| 2024 (FY 2024/25) | $117,101 | $6,327 | $110,774 | $73,995 | $7,270 | 12.5% |
| 2023 (FY 2023/24) | $97,584 | $6,327 | $91,257 | $69,285 | $2,798 after $4,028 abatement | 12.502% |
| 2022 (FY 2022/23) | $95,868 | $6,327 | $89,541 | $64,918 | $0 after $8,056 abatement | 12.267% |
| 2021 (FY 2021/22) | $76,652 | $6,327 | $70,325 | $60,876 | $3,420 after $4,028 abatement | 12.235% |
| 2020 (FY 2020/21) | $74,421 | $6,327 | $68,094 | $58,485 | $7,174 | 12.267% |
| 2019 (FY 2019/20) | $69,360 | $6,327 | $63,033 | $56,919 | $7,100 | 12.473% |
| 2018 (FY 2018/19) | $53,296 | — | — | $53,296 | $6,722 | 12.612% |
| 2017 (FY 2017/18) | $49,937 | — | — | $49,937 | $6,351 | 12.719% |

The City has not published the official FY2026/27 and FY2025/26 tax rates yet. We calculated the tax for those years using the prior year’s rate, so treat them as an estimate rather than a figure the City has adopted. Every rate without the Estimated marker is the published one.

Tax Assessment is the assessed value on the City’s roll, and it is the figure other listing sites publish. It is not what the bill is calculated on. New York phases assessment changes in gradually for some tax classes, so the City bills the Billable Value shown beside it, less any exemption the owner holds. It usually trails the assessment, and it can sit above it for a few years after an assessment falls.

Where an abatement applies, Property Tax is the amount owed after it. Abatements are granted to the property and do not necessarily transfer to a new owner.

Figures are the New York City Department of Finance assessment roll for tax lot 3009831505. Assessed and billable values are determined by the City for tax purposes and are not an appraisal or an estimate of market value. Tax classes and rates are set annually and can change.

[How we source and calculate NYC property tax data](https://realestaterebatesnewyork.com/nyc-property-tax-data-methodology)

## About The Building

### 343 6th Avenue

343 6th Avenue, Brooklyn, NY 11215

A building in the neighborhood, currently featuring 0 active listings.

- **Year Built**: 1920
- **Active Units**: 0
- **Floors**: 4

[View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/brooklyn/343-6th-avenue)

### Available Residences — For Sale (0)

| Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |

### Recently Sold (1)

| Unit | Beds | Baths | Size | Price / Ft² | Sold Price | Listing Office | Listed Date | Sold Date |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [4](https://realestaterebatesnewyork.com/buy/newyorkcity/brooklyn/11215/343-6th-avenue-4-ny-11215) | 3 | 3 | 2,165 sqft | $2,309 | $4,999,999 | Corcoran Group | Jun 10, 2026 | Aug 17, 2026 |

## Park Slope

Overview of Park Slope

[Explore Park Slope](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/park-slope) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods)

### Nearby Park Slope

- [Prospect Heights real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/prospect-heights)
- [Gowanus real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/gowanus)
- [South Slope real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/south-slope)
- [Prospect Park real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/prospect-park)
- [Boerum Hill real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/boerum-hill)
- [Carroll Gardens real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/carroll-gardens)

## Related Links

- [343 6TH Avenue — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/brooklyn/343-6th-avenue)
- [Park Slope neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/park-slope)
- [Estimate your Buyer Commission Share and closing costs](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator)
- [Contact Régis Roumila](https://realestaterebatesnewyork.com/contact)

---

> RLS IDX Data display by Real Estate Rebate Team. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

> All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.