421 9th St, Brooklyn, NY 11215
Photo 2
Photo 4
OFF MARKET

421 9th St
Brooklyn, NY 11215

Park Slope
  • 4 Beds
  • 2 Baths
  • 2,402 sqft

$3,595,200

Trulia Estimate
as of Jul 28, 2026
Est. Refi. Payment $20,373/mo*
Refinance Your Home

$3,595,200

Trulia Estimate
as of Jul 28, 2026
Est. Refi. Payment $20,373/mo*
Refinance Your Home
4 Beds
2 Baths
2,402 sqft

Local Information

  • Map ViewExplore the area around 421 9th St.
  • Schools1 Elementary School1 Middle School2 High Schools
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1899
Living Area
2,402 sqft
Price/Sqft
$1,497

About this House

Gorgeous Center Park Slope Townhouse Gracefully designed brownstone in the heart of Park Slope. Owner&s triplex plus a garden rental. The owner&s triplex has 4 bedrooms, 2 baths. A former, Knights of Columbus, this grand home has retained many original details, including 2 WBFS, moldings, shutters and ornate tin ceilings. This home has a gracious flow and is perfect for large family gatherings as well as lazy weekends... There are wood floors throughout the home, as well as carrera marble in the 3 bathrooms. The kitchen island, crafted by Brooklyn designers and carpenters, easily seats 10 and is ideal for entertaining. All new mechanicals. Near everything! One block to F Train, YMCA, CTown, Library and 2 blocks to Prospect Park.
421 9th St, Brooklyn, NY 11215 is a 4 bedroom, 2 bathroom, 2,402 sqft single-family home in Park Slope, built in 1899. It is currently off market. The Trulia Estimate is $3,595,200, with a rent estimate of $7,694/month.

Home Details for 421 9th St

Interior Features

Levels, Entrance, & Accessibility
Stories: 2

Property Information

Year Built
Year Built: 1899Year Updated: 1899
Property Type / Style
Property Type: Single Family Home

Community

Units in Building: 1

Lot Information

Lot Area: 1481 sqft

Price History for 421 9th St

DatePriceEventSource
09/14/2012$2,700,000ListingRemovedAgent Provided
08/11/2012$2,700,000Listed For SaleAgent Provided

Market trends in Park Slope

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$1.43M
$63.33KMoM
Sale-to-List Price
—
Price per sq ft
—
Available listings
146
5MoM
Skip to last item
  • Results are loading
Skip to first item

Property Tax and Assessment

Year2025
Tax$7,493
Assessment$3,836,000
Home facts updated by county records

Comparable Sales for 421 9th St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
342 13th St, Brooklyn, NY
0.24
Single-Family Home
$2,500,000
10/06/25
3
2
1,400
369 13th St, Brooklyn, NY
0.20
Single-Family Home
$2,350,000
09/18/25
2
2
1,450
244A 7th St, Brooklyn, NY
0.43
Single-Family Home
$2,983,913
05/22/26
2
2
1,575
394 17th Street, Brooklyn, NY
0.54
Single-Family Home
$1,600,000
10/01/25
3
2
1,295
385 7th Ave, Brooklyn, NY
0.16
Single-Family Home
$2,115,000
08/01/25
1
1
3,211
266 18th St, Brooklyn, NY
0.58
Single-Family Home
$2,200,000
03/16/26
3
1
2,450
176 12th St, Brooklyn, NY
0.51
Single-Family Home
$315,000
10/16/25
4
3.5
1,920
167 13th St, Brooklyn, NY
0.53
Single-Family Home
$2,250,000
10/22/25
5
4
2,100
138 8th St, Brooklyn, NY
0.58
Single-Family Home
$2,600,000
08/11/25
3
2.5
2,450
370 8th St, Brooklyn, NY
0.05
Single-Family Home
$5,950,000
06/12/26
4
3.5
3,907

Nearby homes

Get a sense of prices in the area by checking nearby homes.
Skip to last item
Skip to first item

Assigned Schools

These are the assigned schools for 421 9th St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Park Slope
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Park Slope

At least 546 Trulia users voted on each feature.

  • 95 % Say it's walkable to grocery stores

  • 95 % Say there are sidewalks

  • 94 % Say it's dog friendly

  • 92 % Say it's walkable to restaurants

  • 86 % Say streets are well-lit

  • 85 % Say people would walk alone at night

  • 81 % Say kids play outside

  • 65 % Say they plan to stay for at least 5 years

  • 64 % Say there are community events

  • 63 % Say there's holiday spirit

  • 63 % Say neighbors are friendly

  • 43 % Say yards are well-kept

  • 39 % Say it's quiet

  • 36 % Say there's wildlife

  • 26 % Say parking is easy

  • 17 % Say car is needed

Sourced by Trulia users. Learn more about our methodology.
  • Anhnghiem
    "Park Slope is a great place to raise your kids but it’s definitely expensive and will test your patience. But my kids got a great education, have interesting friends and are very independent. "
    0
    Flag
  • Fairygoddess369
    "Parades and lots of block parties different types of events from sports to food from school events to community sports"
    0
    Flag
  • Paige Ehlers-Pearl
    "About 35 mins to lower Manhattan via the F train. The G train also provides some access to other parts of Brooklyn "
    0
    Flag
  • D.luria
    "Very close to prospect park for off leash hours which we enjoy regularly. It’s also really to find good dogwalkers. "
    0
    Flag
  • Paige P
    "Being close the park is such a luxury, particularly during the week when the crowds aren’t large. However, lots of dogs nearby (yay) means lots of bad dog owners (boo)."
    0
    Flag
  • Jose Corona
    "Theres always places to go and explore or to try out different cultures as well for food or even stores to shop at "
    0
    Flag
  • bdpowell7
    "Fantastic neighborhood. Feels like a community. A lot of families. Great schools. There’s a great food coop. "
    0
    Flag
  • Anhnghiem
    "We have lived in Park Slope for over 10 years and we love it. It’s an amazing community and there is so much to do in the neighborhood. "
    2
    Flag
  • Gohar Rashid
    "Decent commute it’s good to have B/Q TRAIN CAUSE IF ONE BOT WORKING THE OTHER ONE IS WORKING & b82 bus plays important role too "
    2
    Flag
  • Devtysingletary
    "Block parties are alive and well. Great sense of community with a block whatsapp group. Neat little finds on the street. "
    0
    Flag
  • William D Duty
    "It’s the R train. So, it’s a long commute sometimes. The bus is pretty nice. It takes an hour at best to get to the upper east side. "
    1
    Flag
  • Trulia User
    "There are a lot of vagrants sleeping on the stoops and some have been violent towards people that live here and children"
    4
    Flag
  • Trulia User
    "Brownstone tree lined streets full of families. Halloween. Fall. Good food. Playgrounds. Neighbors. "
    4
    Flag
  • Trulia User
    "many other dogs to sniff, plenty of groomers and there’s often free dog cookies in the regular stores"
    0
    Flag
  • Trulia User
    "It is like any other neighborhood in Brooklyn it has its shay areas but for the most part it is a beautiful piece of Brooklyn "
    1
    Flag
  • Trulia User
    "Great restaurants, friendly people who make a good living but are humble and interesting and well cultured!"
    3
    Flag
  • Trulia User
    "I see people walking their dogs all the time. Prospect Park is also a very popular place for dog owners to bring their dogs during off leash hours. "
    0
    Flag
  • Trulia User
    "There is a huge park, a small park, many schools and children and parents. There are dogs, dog walkers, and friendly dog owners. "
    1
    Flag
  • Trulia User
    "Lots of families and preschools in the area. Area full of strollers and dogs! Also has green and shaded streets."
    0
    Flag
  • Trulia User
    "Very easy commute to the city and downtown Brooklyn. Park slope is a short walk to many different lines. "
    0
    Flag
  • Trulia User
    "Nice family neighborhood with nice places to eat and shop. Many parks around friendly for kids and pets."
    3
    Flag
  • Trulia User
    "This is actually not my neighborhood, but I jog around in this neighborhood a lot. I feel pretty safe around here."
    0
    Flag
  • Trulia User
    "Easy commute to Manhattan with multiple train lines nearby. Park Slope is a beautiful, quiet residential neighborhood of brownstones and other low profile housing. Great family neighborhood. It doesn’t get better than this in NYC."
    0
    Flag
  • Trulia User
    " I don’t know. I don’t have a dog. I have never owned a pet. There are plenty of pets around though. Lots of parks"
    0
    Flag
  • Trulia User
    "I have lived in this neighborhood for 25 years. I have seen drastic changes for the good since I moved here. There are lots of families and most people seem friendly. "
    0
    Flag
  • Hazuki A.
    "Street fairs and farmers markets, barbecues in Prospect Park, music performances on the streets For children and adults. In the summer, they have celebrate Brooklyn! Which invites wonderful artists to perform at the band shell in Prospect Park. Often the zoo and the botanical Garden hosts events."
    12
    Flag
  • Metcalfe78
    "Fifth avenue street fairs each year; the Halloween parade on 7th Ave; plant sales at the local community garden; the Cherry Blossom Festival at Brooklyn Botanic Gardens "
    1
    Flag
  • Rajalingam J.
    "I have lived here for 20yrs and love it everyday!! Park Slope has beautiful brownstones. Prospect Park is the jewel in the crown!!"
    12
    Flag
  • Drewcreid
    "Prospect Park is a huge attraction for dog owners. Off leash in early morning is very fun for the pups. "
    2
    Flag
  • Sandra P.
    "The neighborhood offers excellent public transportation access (be it subway, bus, bike share, or Long Island Railroad) and easy access to major thoroughfares."
    2
    Flag
  • Chris L.
    "There can be a bit of garbage you have to watch out for. Our dog likes to look for street food which isn't good. "
    1
    Flag
  • Nicholas H.
    "It’s a nice, pretty, relatively quiet neighborhood with good public schools and lots of green space."
    1
    Flag
  • Wbarbot
    "Tree lined streets, good restaurants Prospect Park within walking distance and one of the best school school districts in NYC . District 15"
    0
    Flag
  • Kristina.galassi
    "It’s very family friendly, so close to the park, lots of great places to eat and small businesses to shop at. Other than the enormous price tag, it’s a fantastic neighborhood!"
    8
    Flag
  • Dianamccorry
    "There’s a pretty fun Halloween decorating contest every year, but the best events are the free concerts at the Prospect Park Bandshell!"
    0
    Flag
  • Ashleynfoley
    "Just the community itself not so much the events.. it really is a place where people live, go to events in the City and be with you’re family here :) "
    1
    Flag
  • Lisa P. K.
    "Park Slope is a great neighborhood to raise a family. It is a wonderful community with great schools and resources for kids."
    2
    Flag
  • Erin S.
    "Very short. Trains are ok. Depends on exactly where you are. About 45 min to Midtown. Close to f trains where I am"
    1
    Flag
  • Kyle K.
    "Block parties, great schools, street fairs, outside dining, and stoop drinks. Great neighborhood for dogs too."
    0
    Flag
  • Adela C.
    "Great area, close to restaurants, transportation, and Prospect Park. Great for walking and families! "
    0
    Flag

LGBTQ Local Legal Protections

Apartments for Rent

Skip to last item
Skip to first item

Explore by feature - Pet Friendly

9361 pet-friendly rentals in Brooklyn, NY

Explore by feature - Garage

3303 rentals with a garage in Brooklyn, NY

Explore by feature - Air Conditioning

7367 rentals with air conditioning in Brooklyn, NY

Explore by feature - Pool

1662 rentals with a pool in Brooklyn, NY

Explore by feature - Washer/dryer

9589 rentals with a washer/dryer in Brooklyn, NY

Explore by feature - Outdoor Space

878 rentals with an outdoor space in Brooklyn, NY

Homes for sale near 421 9th St

Skip to last item
Skip to first item

Off Market Homes Near 421 9th St

Skip to last item
Skip to first item