Sell Your Property in South Slope
We Buy Brownstones, Mixed-Use Buildings & Development Sites in South Slope
From the row-house blocks off Seventh Avenue to the storefronts of Fifth Avenue and the upzoned Fourth Avenue corridor, we buy South Slope property directly, as-is and off-market.
- All-cash, as-is — tenants, violations and estates welcome
- Confidential process and a clear written offer
- Row houses, walk-ups, mixed-use and development sites
- Close on your timeline after a fast review
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Quick Answers
Who Buys Property in South Slope?
Who buys property in South Slope, Brooklyn?
Red Hook Development buys property in South Slope directly from owners. We purchase brownstones and brick row houses, frame houses, two- to four-family homes, walk-up apartment buildings, mixed-use buildings on Fifth and Seventh Avenues, and development sites along Fourth Avenue. We buy as-is and off-market, and we can typically close on your timeline.
Most sellers come to us because something about the property makes a public listing hard: tenants in place, an estate, open violations, a house that needs everything, or a site whose value is in its zoning rather than its current building.
Who buys brownstones and row houses in South Slope?
We do. South Slope’s side streets are lined with late nineteenth and early twentieth century brownstone and brick row houses, many of them two- and three-family homes. We buy them occupied or vacant, in original condition or partially renovated, and we price in roof, facade, plumbing and structural work rather than asking you to fix it first.
What is my South Slope building worth?
It depends on the block, the lot, the legal use, tenancy and condition, and, on Fourth Avenue especially, what zoning allows on the site. A Fourth Avenue garage may be worth more as land than as a business property. We review all of it and give you a written number you can compare against a broker’s opinion.
Can I sell a South Slope building with rent-stabilized tenants?
Yes. We buy walk-ups and mixed-use buildings with rent-stabilized, rent-controlled and free-market tenants in place. You do not need to vacate units or negotiate buyouts. We underwrite the building based on the leases and rent roll as they exist today.
Do you buy development sites and estates in South Slope?
Yes. We buy garages, auto-use parcels, one-story commercial buildings and underbuilt lots, especially on and near Fourth Avenue, along with inherited homes from estates. We coordinate with the estate’s attorney so the sale follows the proper process.
What We Buy in South Slope
South Slope Properties We’re Actively Buying
Brownstones & Brick Row Houses
South Slope’s side streets between Fourth Avenue and Prospect Park West hold rows of brownstone and brick houses, many with a stoop, a garden level and two or three units. We buy them in any condition, including houses with original systems, failing facades or tenants on multiple floors.
Frame Houses
South Slope still has wood-frame houses tucked among the masonry rows, some with siding over original clapboard. They often raise questions about fire separation, foundations and legal use. We underwrite those issues ourselves and buy the house as it stands.
Fifth Avenue Mixed-Use Buildings
Fifth Avenue is a busy retail corridor of three- and four-story buildings with shops below and apartments above. We buy these with retail tenants in place, with a vacant storefront, or with a long-time family business ready to close.
Walk-Up Apartment Buildings
Prewar walk-ups appear on the avenues and some side streets. We buy buildings with rent-stabilized, rent-controlled or free-market units, HPD violations, vacant apartments and deferred capital needs, without asking you to change anything first.
Fourth Avenue Development Sites
The Fourth Avenue corridor allows larger apartment buildings than the side streets. Garages, gas stations, low commercial buildings and small houses on the avenue can carry significant unused floor area. We buy them as development sites and handle the zoning and approvals after closing.
Two- to Four-Family Homes
Many South Slope owners have family on one floor and tenants on another. We buy multi-family homes with any mix of occupancy, including units with long-term tenants, expired leases or relatives living rent-free, and we review the certificate of occupancy as part of the process.
Housing Stock
South Slope Housing Stock: Row Houses, Walk-Ups and Avenue Buildings
South Slope is the southern end of the Park Slope area, generally the blocks below 15th Street running down toward Green-Wood Cemetery and the Prospect Expressway. Development came here a little later and a little more modestly than in the mansion blocks near Grand Army Plaza, which is why the side streets are dominated by brick and brownstone row houses built for working and middle-class families around the turn of the twentieth century, along with older wood-frame houses.
The avenues tell a different story. Fifth Avenue and Seventh Avenue are lined with mixed-use buildings that put stores at street level and apartments above, while Sixth Avenue is mostly residential. Fourth Avenue, once a corridor of garages, auto shops and low buildings, has filled in with taller apartment buildings since its upzoning.
That variety is why South Slope makes sense for a direct buyer. A two-family brick row house, a Fifth Avenue mixed-use building and a Fourth Avenue garage each need a completely different analysis, and we do all three.
Zoning
South Slope Zoning, Fourth Avenue and Development Potential
The Fourth Avenue corridor was upzoned in the early 2000s to allow substantially taller apartment buildings with ground-floor commercial space, and South Slope’s side streets received contextual zoning designed to protect the scale of the row houses. The result is a sharp contrast: the avenue supports real density, while the mid-blocks are mostly about renovation, conversions and modest enlargements.
City of Yes for Housing Opportunity, adopted in December 2024, adds new possibilities on some lots, including additional floor area for projects that include affordable housing, reduced parking requirements and the potential for accessory dwelling units on qualifying one- and two-family lots. How much of that applies to a given property depends on its district, lot size and existing building.
Landmarks
Much of the Park Slope Historic District and its extensions lie north of South Slope, and most of South Slope is outside designated districts. Where a property does fall within a historic district, exterior changes need Landmarks Preservation Commission approval. We check that on every address we review.
Rent Regulation
Selling a Rent-Stabilized or 421-a Building in South Slope
Older South Slope walk-ups and mixed-use buildings with six or more apartments built before 1974 often include rent-stabilized units. Since the 2019 rent law changes, owners have far fewer ways to recover the cost of improvements, and many long-time landlords find the numbers no longer work. We buy these buildings with tenants in place and existing leases intact. Our page on how to sell a rent-stabilized building explains our approach.
Several newer buildings along Fourth Avenue were developed with 421-a tax benefits, which come with affordability and registration requirements that run for years. The program expired for new projects in 2022 and was replaced by 485-x in 2024, but existing 421-a buildings remain bound by their original terms. If you own one, our guide to selling a 421-a building covers what we evaluate. Talk to your attorney and tax advisor about the specific consequences of any sale.
Where We Buy
South Slope Streets and Corridors We Focus On
We buy across all of South Slope, from about 15th Street down to the Prospect Expressway and from Fourth Avenue up to Prospect Park West and Prospect Park Southwest.
- Fourth Avenue, from the 9th Street area south toward 24th Street
- Fifth Avenue’s retail strip and the mixed-use buildings on it
- Sixth Avenue and the quieter residential side streets
- Seventh Avenue and Prospect Avenue near the F and G
- 16th through 24th Streets between Fourth and Seventh Avenues
Transit is excellent. The R train runs under Fourth Avenue with stops at 9th Street, Prospect Avenue and 25th Street, and the F and G stop at Fourth Avenue–9th Street, Seventh Avenue and 15th Street–Prospect Park. South Slope runs into Greenwood Heights to the south and west and into Windsor Terrace across the expressway, and we buy in both.
Why Owners Sell
Common Reasons South Slope Owners Sell Directly
Many South Slope houses have been in the same family for generations, and much of our work involves helping families make a clean decision about a property no one wants to manage.
- An inherited brownstone or row house that several heirs need to split
- A house that needs a gut renovation the family cannot fund or oversee
- A mixed-use building with a vacant store or a difficult retail tenant
- A walk-up with HPD or DOB violations and growing compliance costs
- A Fourth Avenue property worth more as land than as a business
- Partners or relatives who disagree on whether to hold or sell
In each case, an as-is sale to a developer removes the friction. You do not need to clear violations, renovate, deliver vacant units or market the property. You agree on terms and pick a closing date that works for you.
Possibilities
What Your South Slope Property Could Become
On Fourth Avenue, a garage or low commercial building can become a mid-rise apartment building with retail on the ground floor. On Fifth and Seventh Avenues, a tired mixed-use building can be renovated with updated apartments and a refreshed storefront, and some may have room for additional floor area. On the side streets, a neglected two- or three-family row house can be restored as a high-quality home with a legal rental unit.
Some projects are combinations: two adjacent small lots assembled into one buildable site, or a frame house replaced with a new masonry building that fits contextual zoning. We look at all of those options when we underwrite, and our offer reflects what is realistic, not wishful.
You can see the full range of what we acquire on our what we buy page, including property types we purchase across Brooklyn.
Your Options
Developer Sale vs. Broker Listing vs. Developing It Yourself
A broker listing works well for a renovated, vacant, mortgage-ready South Slope house where retail price is the priority and you have time. It gets harder with tenants, violations, a serious repair list or an estate, because those issues narrow the buyer pool and add contingencies.
Developing the property yourself, especially on Fourth Avenue, can look attractive on paper, but it means years of design, approvals, financing, construction and market risk.
Selling to a developer trades some theoretical upside for certainty and simplicity: an as-is sale, a confidential process, no showings and a closing date you control. We suggest getting a broker’s opinion alongside our written offer so you can compare real numbers, and consulting your own attorney and tax advisor before you decide.
How It Works
How Selling Your South Slope Property to Us Works
Selling to Red Hook Development is designed to be simple.
- Send us the address, occupancy and anything we should know
- We review zoning, records, violations and any rent roll
- We schedule one walkthrough at a time that suits you and tenants
- You receive a clear written offer, typically all-cash and as-is
- Your attorney handles the contract and you choose the closing date
We respond within one business day. Start on our sell your property page or send us the address using the form below.
Market Context
South Slope in Context
South Slope offers much of what draws people to Park Slope, including park access, row-house blocks and good transit, along with a more varied mix of buildings and a corridor that can still absorb new housing. It connects to Gowanus across Fourth Avenue and to Sunset Park beyond Green-Wood, and it attracts buyers and renters from all of them. That combination of steady residential demand and real development capacity on the avenue is why we stay active here.
FAQ
South Slope Seller Questions
Do you buy South Slope houses that need major repairs?
Yes. We buy as-is, including houses with failing roofs, facade problems, outdated electrical and plumbing, structural issues or fire damage. You do not have to repair anything before the sale. The work needed is accounted for in our written offer.
Is a Fourth Avenue garage worth more as a development site?
Often it can be, because the avenue allows larger buildings than the side streets. The answer depends on lot size, zoning, the existing building and any environmental issues. We review those factors and make an offer based on what the site can realistically support.
Can I keep my store open until closing?
Usually, yes. If you operate a business in a Fifth or Seventh Avenue building, we can discuss a closing date that lets you wind down on your own schedule, or other arrangements your attorney can document in the contract.
Will my tenants be contacted before we sign?
No. We keep the process confidential. We only coordinate access with tenants when you are ready and on terms you approve, and we do not discuss the sale with anyone you have not authorized.
Do you buy partial interests or properties with co-owners who disagree?
We can look at situations involving multiple owners and disagreements, and in many cases a clear written offer helps everyone reach a decision. Each owner should have their own attorney, and we work within whatever agreement the owners reach.
What documents do I need to get an offer?
Very little to start. The address, a rough description of occupancy and condition, and any leases or rent roll for rental buildings are enough. We pull public records, zoning and violation history ourselves.
Other Neighborhoods
We Also Buy Nearby
We buy across the neighborhoods surrounding South Slope on the same as-is, confidential terms.
Own Property in South Slope?
Find out what a developer will pay — privately, with no obligation. Call 718-500-3423 or email bklyn@redhookdevelopment.com.