NEW DEVELOPMENTS · PARK SLOPE
Last updated: November 4, 2026
As of November 2026, I'm tracking 12 new development buildings in Park Slope that aren't selling yet, with about 113 new homes between them. Ten have condo offering plans filed with the New York Attorney General, and two are at the earliest stage, with building permits filed. Four more Park Slope buildings are selling now.
Most of these buildings never get much attention before they list, so I keep this page current as each one moves forward. Every building below links to my full write-up: what's planned, what the filings show, and what I know about timing.
Park Slope new developments at a glance
12 pre-market buildings with about 113 homes planned
Largest projects: 240 19th Street (37 condos) and 150 Prospect Park West (30 condos)
Mostly boutique: 9 of the 12 have six homes or fewer
Selling now: 4 buildings
Which Park Slope condos have filed offering plans?
These buildings have filed a condo offering plan with the New York Attorney General, but the plan hasn't been accepted yet. That means no public pricing, no listings and no contracts yet, which is exactly why getting on the list early matters.
Which Park Slope buildings are still in the planning stage?
These buildings have permits filed with the Department of Buildings but no condo offering plan yet. It's the earliest point I track, often a year or more before anything reaches the market, and not every one will end up as condos.
Which Park Slope new developments are selling now?
These buildings have accepted offering plans and are on the market. Some have only a unit or two left.
How the new development stages work
Permits filed: the developer has filed plans with the Department of Buildings. There's no offering plan yet, so there's nothing to buy and the project can still change.
Offering plan filed: the developer has submitted a condo offering plan to the New York Attorney General for review. Units can't be sold until the plan is accepted, so there's no official pricing yet.
Offering plan accepted: the Attorney General has accepted the plan, the price list is public, and the developer can start taking contracts.
Now selling: units are on the market.
Get early access to Park Slope new developments
I preview many of these buildings before they're advertised. Tell me what you're looking for, and I'll reach out when a Park Slope building that fits moves forward.
Park Slope new development FAQ
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As of November 2026, I'm tracking 12 Park Slope new development buildings that aren't selling yet, with about 113 homes planned. The largest are 240 19th Street (37 condos) and 150 Prospect Park West (30 condos). Most of the rest are boutique buildings with six homes or fewer.
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A building can start selling once the New York Attorney General accepts its condo offering plan. None of the 12 pre-market Park Slope buildings I track has an accepted plan yet, so official pricing isn't public. Review often takes several months after filing, and timing varies by building.
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It means the developer has submitted a condo offering plan to the New York Attorney General. Until the plan is accepted, the developer can't sell units or publish official pricing.
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Join my early access list on this page. I preview many buildings before they're advertised and share details with buyers on my list first.