Brownstone Guide · Home structure
Last updated: November 9, 2026 · By Katie Keate Johnson, Decode Real Estate
The median Brooklyn brownstone is 20 feet wide on a 100-foot-deep lot. Two in five are exactly 20 feet, one in five is narrower than 18 feet, and only Brooklyn Heights (24.7 foot median) and Cobble Hill (21 feet) consistently run wide. Prospect Heights has the deepest lots, at a median of 131 feet.
Jump to: Widths by neighborhood · Where each width is common · Lot depth · Width vs bedrooms · How to read a listing · FAQ
How wide is a typical Brooklyn brownstone?
Twenty feet. Across 2,183 townhouses sold since 2023 in the 12 neighborhoods I track, the median building width is 20 feet and 40% are exactly 20 feet. About 21% are narrower than 18 feet, and only about 9% are 22 feet or wider.
Median building width by neighborhood
Source: NYC PLUTO building width by tax lot, n = 2,183 townhouses sold 2023 to present.
| Neighborhood | Median width | Under 18 ft | Exactly 20 ft | 22 ft or wider | Median interior sq ft |
|---|---|---|---|---|---|
| Brooklyn Heights | 24.7 ft | 7% | 12% | 57% | 4,600 |
| Cobble Hill | 21.0 ft | 24% | 12% | 32% | 3,380 |
| Park Slope | 20.0 ft | 24% | 39% | 2% | 3,500 |
| Boerum Hill | 20.0 ft | 21% | 39% | 11% | 3,104 |
| Carroll Gardens | 20.0 ft | 29% | 32% | 13% | 2,700 |
| Fort Greene | 20.0 ft | 17% | 32% | 9% | 3,200 |
| Clinton Hill | 20.0 ft | 20% | 43% | 10% | 3,096 |
| Bedford-Stuyvesant | 20.0 ft | 20% | 39% | 4% | 2,996 |
| Prospect Lefferts Gardens | 20.0 ft | 6% | 68% | 8% | 2,810 |
| Crown Heights | 20.0 ft | 18% | 50% | 6% | 2,796 |
| Windsor Terrace | 19.8 ft | 32% | 37% | 5% | 2,201 |
| Prospect Heights | 19.2 ft | 27% | 32% | 5% | 3,271 |
Width shares from NYC PLUTO (n = 2,183). Interior square footage is the median from closed sales records and includes finished space as marketed.
Prospect Lefferts Gardens is the most "exactly twenty" neighborhood: 68% of its houses are 20 feet wide on the nose. Brooklyn Heights and Cobble Hill are the wide exceptions, while Windsor Terrace and Prospect Heights run slightly narrow.
Where are wide and narrow brownstones most common?
Most buyers start their search at 20 feet, and in most neighborhoods that is what comes to market. How easy it is to find depends on where you look.
- Exactly 20 feet is easiest to find in Prospect Lefferts Gardens (68% of townhouses), Crown Heights (50%) and Clinton Hill (43%).
- Wider than 22 feet is common only in Brooklyn Heights (57%) and Cobble Hill (32%). Everywhere else it is 13% or less, and in Park Slope it is 2%.
- Narrower than 18 feet shows up most in Windsor Terrace (32%), Carroll Gardens (29%), Prospect Heights (27%), and Park Slope and Cobble Hill (24% each).
In practice: if you need a full 20 feet in Windsor Terrace or Carroll Gardens, expect close to a third of what comes up to be narrower. If you want more than 22 feet outside Brooklyn Heights and Cobble Hill, there are only a handful a year.
How deep is a Brooklyn brownstone lot?
The median lot is 100 feet deep, and roughly half of all lots are exactly 100 feet. Depth is fairly uniform across the brownstone belt, with one big exception: Prospect Heights, where the median lot runs 131 feet and 56% of lots are deeper than 110 feet. Crown Heights is second.
A deeper lot does not mean a bigger house. It means more backyard, more privacy and more distance from the houses behind you. If outdoor space is high on your list, Prospect Heights is the neighborhood to look at first.
| Neighborhood | Median lot depth | Exactly 100 ft | Deeper than 110 ft |
|---|---|---|---|
| Prospect Heights | 131 ft | 11% | 56% |
| Crown Heights | 105 ft | 23% | 39% |
| Cobble Hill | 100 ft | 35% | 10% |
| Park Slope | 100 ft | 57% | 5% |
| Boerum Hill | 100 ft | 59% | 0% |
| Carroll Gardens | 100 ft | 56% | 1% |
| Fort Greene | 100 ft | 59% | 5% |
| Clinton Hill | 100 ft | 50% | 13% |
| Windsor Terrace | 100 ft | 46% | 6% |
| Bedford-Stuyvesant | 100 ft | 74% | 3% |
| Prospect Lefferts Gardens | 100 ft | 60% | 10% |
| Brooklyn Heights | 94 ft | 22% | 4% |
Source: NYC PLUTO lot depth by tax lot, n = 2,215.
See what Prospect Heights houses cost on the Prospect Heights neighborhood guide.
Does bedroom count tell you how big a brownstone is?
Less than you would think. Across 312 sold single-family townhouses, bedroom count explained size worse (correlation 0.55) than width multiplied by number of floors (0.61). Square feet per bedroom falls from 738 in a three-bedroom to 638 in a six-bedroom, and the ranges overlap heavily.
| Bedrooms | Smaller homes (10th percentile) | Median size | Larger homes (90th percentile) |
|---|---|---|---|
| 3 | 1,540 sq ft | 2,215 sq ft | 2,920 sq ft |
| 4 | 1,865 sq ft | 2,700 sq ft | 3,790 sq ft |
| 5 | 2,390 sq ft | 3,310 sq ft | 4,820 sq ft |
| 6 | 2,610 sq ft | 3,830 sq ft | 5,270 sq ft |
Source: Decode layout study joined to REBNY closing data and NYC PLUTO, single-family townhouses, n = 312.
Three real pairs make the point:
| Comparison | House A | House B | Lesson |
|---|---|---|---|
| Same 4 bedrooms, Park Slope | 369 6th St: about 1,920 sq ft, 16.7 ft wide, 2 floors, $4.05M | 545 3rd St: about 4,500 sq ft, 20 ft wide, 3 floors, $6.125M | Width and a third floor double the house |
| 3 bedrooms bigger than 5 | 265 Cumberland St, Fort Greene: about 2,600 sq ft, 25 ft wide, 2 floors | 314 Sherman St, Windsor Terrace: about 1,845 sq ft, 18 ft wide, 2.5 floors | Sorting by bedrooms ranks them backwards |
| Same 5 bedrooms, similar width | 176 Lincoln Rd, Prospect Lefferts Gardens: about 3,290 sq ft, 22 ft wide, 2 floors, $2.7M | 535 1st St, Park Slope: about 6,500 sq ft, 21 ft wide, 4 floors, $13.9M | Height is the multiplier |
How should you check a brownstone's width?
Width is often missing from listings, or rounded. Here is what I check:
- Confirm it on the city record. NYC PLUTO lists building width by tax lot, and it does not always match the listing.
- Compare it to the neighborhood. 20 feet is typical in Crown Heights; in Brooklyn Heights, most houses are wider.
- Count the floors, including the garden level. Two houses of the same width can differ in size by thousands of square feet.
- Check square footage against the city record. Finished cellars and extensions can inflate the marketed number.
Then look at how the house is laid out. My floor plan analysis covers garden apartments, parlor floors and how often "two-family" really means two homes.
Frequently asked questions
How wide is a typical Brooklyn brownstone?
The median Brooklyn brownstone is 20 feet wide, based on NYC PLUTO records for 2,183 townhouses sold since 2023 in 12 neighborhoods. Two in five are exactly 20 feet wide.
What is considered a wide brownstone?
Anything 22 feet or wider is wide by Brooklyn standards. Only about 9% of the townhouses in my data are 22 feet or more, and they cluster in Brooklyn Heights (median 24.7 feet) and Cobble Hill (21 feet).
How deep is a Brooklyn brownstone lot?
The median lot is 100 feet deep, and about half are exactly 100 feet. Prospect Heights is the exception, with a median lot depth of 131 feet, which means bigger backyards rather than bigger houses.
Where is it easiest to find a 20-foot-wide brownstone?
Prospect Lefferts Gardens, where 68% of townhouses are exactly 20 feet wide, followed by Crown Heights (50%) and Clinton Hill (43%).
Where are narrow brownstones most common in Brooklyn?
Windsor Terrace, Carroll Gardens and Prospect Heights. About 32%, 29% and 27% of their townhouses are narrower than 18 feet, compared with 6% in Prospect Lefferts Gardens.
Which Brooklyn neighborhood has the widest brownstones?
Brooklyn Heights, with a median width of 24.7 feet. 57% of its townhouses are 22 feet or wider. Cobble Hill is second at 21 feet.
Does bedroom count tell you how big a brownstone is?
Not very well. Across 312 single-family townhouse sales, width times number of floors predicted size better than bedroom count did. A large four-bedroom can be bigger than a typical five-bedroom.
Get the full guide, or talk it through
Decoding the Brooklyn Brownstone is my 18-page data guide built from 2,451 townhouse sales in 12 neighborhoods. Request a copy and I will email it to you, or book a call and we can look at the houses you are considering.
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