140 8th Avenue

The building holds 94 apartments across six stories on a corner lot of 24,000 square feet, with roughly 97,800 square feet of floor area. The plan is organized around courtyards rather than a single lobby axis, which is why the building reads as lower and quieter from Eighth Avenue than its unit count suggests, and why interior apartments get real light instead of an airshaft.

Layouts follow the mid-1930s standard that these buildings were built to rent: entry foyers, defined living and dining rooms, bedrooms off a hall, and closet counts that are generous by prewar standards — a frequent and legitimate selling point in individual apartments here. The Art Deco detail that survives inside varies apartment by apartment, from original tiled bathrooms and arched openings through to full gut renovations, and that variance is the primary driver of price spread within the building. Because the black steel casements are original and character-defining, replacement is a Landmarks matter and not a shareholder decision; ask what the co-op's window policy is and whether a building-wide program has been discussed.

140 8th Avenue of Brooklyn Corp. has operated the building since the 1980 closing. The service model is the district's standard for a large interwar co-op — resident superintendent, elevator service, central laundry, basement storage, and a common room that doubles as a children's playroom and meeting space — with no doorman. Ninety-four apartments spread the fixed costs of that operation more efficiently than the district's forty- and sixty-unit buildings do, which is a structural advantage in the maintenance line.

The capital agenda at a 1936 masonry building is legible and expensive: FISP/Local Law 11 façade cycles, roof and parapet, boiler and riser stack, elevator modernization, and the courtyard and areaway work that a set-back building carries and a streetwall building does not. Steel casement windows are the item that separates this address from its peers — restoring or replacing them under Landmarks review is a significantly different project than a vinyl replacement program three blocks outside the district. Ask management for the current capital plan, the last two FISP filings, the assessment history and the corporation's underlying mortgage terms.

The cooperative's house rules, sublet policy, pet policy, flip tax and financing standards are not publicly documented in the materials available to us, and this page will not guess at them. Every one of these should be requested in writing from management before an offer is submitted, and the purchase application, current house rules and most recent financial statements should be read together rather than in isolation. What can be said with confidence is that the building operates in the standard cooperative form: board approval, a full financial package and an interview.

Recent sales

Recent transfers at this building, curated by The Roebling Team research desk. Prices are the transfer amounts recorded with the NYC Department of Finance; apartment-level detail is checked against the building’s own file in The Roebling Research Library before publishing.

Market read. Most recent trades (2026) cleared a median $1,014/sf across 1 sale. Median listing discount 0.0% from the last ask.

Sales sourced from NYC Department of Finance recorded transfers (BBL 3-01071-0004) and verified listing data. Apartment-level facts (line, condition, asking-price context) curated and cross-verified by The Roebling Team research desk. Not all transactions cross-verify with ACRIS records — sponsor and LLC purchases sometimes record at stipulated values rather than market price; square footage on co-ops is not officially recorded, figures shown are approximate.

The windows are the file to read. Original black steel casements inside a historic district are a Landmarks matter, a thermal-comfort matter and a capital matter all at once. Find out what the co-op's policy is and whether a program is planned or funded.

Every policy is an open question until management answers it. Pets, sublets, flip tax and financing standards are not on the public record for this building. Ask for all four in writing before you make an offer.

Buy the exposure. Avenue, courtyard and Carroll Street lines behave differently on light and noise. Walk the specific apartment at the hour you care about.

Scale is a carrying-cost advantage. Ninety-four apartments carrying a superintendent, an elevator and a laundry is a better ratio than the forty-unit buildings nearby. Test that against the actual maintenance number and the assessment history.

Reconcile original condition with your renovation budget. Surviving Deco detail is part of what you are buying and part of what you may need to work around. Price both.

Lead with the architecture and name the architect. Martyn N. Weinstein's 1936 Art Deco design, the limestone base, the murals and terrazzo in the lobbies, the courtyard setback — this is the rare Park Slope co-op with a genuine architectural headline. Use it.

Photograph the lobbies and the courtyards. They are common elements every buyer walks through and the strongest visual differentiator against competing listings on Seventh and Eighth Avenues.

Have the building's answers ready. Because the policy framework is not public, the seller who can hand a buyer written confirmation of the pet, sublet, financing and flip-tax rules removes the friction that otherwise stalls these deals.

Comp on exposure and condition, not on building average. A renovated courtyard-facing apartment and an original avenue-facing one are different assets. Anchor to matched 2025-forward comparables.

If you're considering 140 8th Avenue, also evaluate:

• 814 Carroll Street — 1950 co-op on the same block; the postwar alternative at similar scale inside the district
• 225 Lincoln Place — six-story 1923 co-op with a documented flip tax and sublet framework, five blocks north
• 209 Lincoln Place — the ten-story 1928 co-op with its own parking lot; the height-and-view alternative
• 220 Berkeley Place — 1955 postwar co-op inside the same district; the mid-century plan alternative
• 235 Lincoln Place — 1937 co-op of nearly the same vintage at smaller scale
• 40 Prospect Park West — 1942 park-front co-op just outside the district line
• 35 Prospect Park West — 1929 eighteen-story park-front co-op; the tall prewar alternative
• 20 Plaza Street East — 1940 co-op on Grand Army Plaza at comparable unit count
• 420 12th Street (Ansonia Court) — the Ansonia Clock Factory conversion in the 2012 Extension; loft character in Park Slope