70 Clark Street
70 Clark Street, Brooklyn, NY 11201
Brooklyn Heights, Brooklyn
BBL 3002360112 · BIN 3001864
- Year built
- 1947
- Type
- Cooperative
- Units
- 60
- Floors
- 6
- Landmark
- Designated
- Pets
- Not publicly documented; confirm current house rules at application
- Subletting
- board-controlled; not documented
Compiled by The Roebling Research Desk from the building’s offering plan, amendments, and related building documents (primary source dated 2026-08). Reported and subject to confirmation. Board policies can change by amendment — confirm at the offer stage.
Every recorded sale at this building, 2004–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- Studio median
- $424K
- Recent range
- $392K – $455K
- Listing discount
- 0.5%
- Recorded transfers
- 53
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 70 Clark Street would likely sell for today, what it costs to sell, and what you’d walk away with — reviewed personally against condition, exposures, renovation quality, and the competition actually on the market.
70 Clark Street is the Heights co-op that sits closest to the subway — and the one whose age the city's own records get wrong. Department of Finance data lists the building as 1960 construction, but the Department of Buildings record tells the true story: a new-building application filed in early 1947, with the first apartment advertisements running by June 1948. The six-story brick cooperative belongs to the first postwar generation of Heights apartment houses, built in the Art Moderne-inflected idiom of the late 1940s — corner windows turning the Henry Street angle, alternating bands of masonry across the façade, and the boxy geometry of its moment. It replaced the Sand Street Methodist Church, one of the neighborhood's great Victorian eccentrics, whose turreted silhouette survives only in photographs.
The location defined the building from the start and still does. Directly across Clark Street stands the former Hotel St. George complex — in its heyday New York's largest hotel, now converted to residential and student use — and beneath it the Clark Street station puts the 2/3 express one elevator ride from the building's front door. Wall Street commutes from 70 Clark are among the shortest in Brooklyn. The building's own ground floor has always worked commercially — the original Parker's Drug Store, with its lunch counter and soda fountain, occupied the retail space in the building's first decades, and restaurant space continues the tradition today. A governance detail follows from that history and matters in diligence: the commercial spaces are held as separately owned units rather than assets of the cooperative, so the co-op's financials do not lean on retail income the way many mixed-use buildings' do.
At 60 apartments across six stories, 70 Clark occupies the practical middle of the Heights cooperative market: large enough for elevator service, a superintendent, and an established managing agent — Adventure Properties, Inc., which keeps its management office in the building — while remaining a modest, self-contained house without the staffing load of the district's full-service tier. Maintenance economics follow accordingly. For buyers who want the historic district, the express subway, and a lean monthly number over prewar ornament or doorman service, the building makes one of the neighborhood's most rational cases.
Architecture and unit composition
The 60 apartments run from studios and one-bedrooms through two-bedroom lines, in the efficient postwar layouts of the late 1940s: foyer entries, compact kitchens built for modernization, and the corner-window living rooms that are the building's signature feature on the Clark and Henry Street angles. Ceiling heights and room proportions are postwar-standard rather than prewar-grand; the offsetting virtues are light — the corner glazing and the open exposure across the low St. George blocks — and floor plans that renovate well. Condition varies widely after seven decades of unit-by-unit renovation cycles, and renovated units trade at a meaningful premium to estate-condition stock.
Building operations
The cooperative operates with elevator service, superintendent coverage, and management by Adventure Properties, Inc. from its office within the building. The documented alteration framework — board approval, a refundable security deposit, licensed-and-insured contractor requirements, weekday-only work hours, and full permit compliance — is typical of a well-run small Heights co-op and is held, with the building's financial documentation, in The Roebling Research Library for client review during diligence.
Policy framework
Board process: Standard cooperative purchase application, financial package, and board interview through the managing agent.
Commercial units: The ground-floor spaces are separately owned rather than cooperative assets — review how this shapes the co-op's income, expenses, and any shared-cost agreements during diligence.
Alterations: Board approval with security deposit, contractor licensing and insurance requirements, and weekday work hours, per the cooperative's alteration agreement.
Pets, pied-à-terre, subletting, financing minimums, flip tax: Not publicly documented; each is board-controlled and should be confirmed with the managing agent before structuring an offer.
Local Law 97
- 2024–2029 annual penalty
- $19,404/yr
- 2030–2034 annual penalty
- $41,389/yr
- Per unit / month range
- $27 – $57
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City record last verified September 2026.
See full Local Law 97 analysis — emissions history, scenarios, methodology →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.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Jul 9, 2026 | 4J | 1 BA · 550 sf | $515,000 | $936/sf | +6.2% |
| Feb 11, 2026 | 6B | 1 BA | $440,000 | -2.2% | |
| Sep 10, 2024 | 6H | 1 BA · 415 sf | $455,000 | $1,096/sf | -2.2% |
| Aug 12, 2024 | 5D | $450,000 | +0.0% | ||
| Aug 12, 2024 | 6C | 1 BA | $450,000 | -3.2% | |
| Oct 12, 2023 | 3A | $425,000 | +0.0% | ||
| Sep 13, 2023 | 4F | 455 sf | $392,000 | $862/sf | +1.1% |
| May 3, 2023 | 3F | 1 BA | $440,000 | -2.2% |
Market read. Most recent trades (2026) cleared a median $936/sf across 1 sale. Median listing discount 2.3% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Full closing history with price-per-square-foot over time, the complete retrade record, and every line that has traded.
Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00236-0112) 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.
What to know if you’re buying
The commute is the headline. The Clark Street 2/3 express station sits directly across the street; few Brooklyn co-ops at any price put Wall Street closer.
The records disagree about the age — the building doesn't. City data says 1960; the DOB filing history says 1947–48. Insurance, financing, and engineering reviews should work from the postwar date.
Understand the commercial-unit structure. Separately owned ground-floor units mean the co-op's budget stands on maintenance alone; review the financials with that structure in mind, along with any shared-cost arrangements with the commercial owners.
Confirm the policy set early. Pet, sublet, pied-à-terre, financing, and flip-tax policies are not publicly documented; get the current rules from the managing agent before offer.
Co-op timelines apply. Board package, interview, and approval typically pace closings at 60–90 days from contract.
What to know if you’re selling
Sell the location arithmetic. Historic-district address, express subway at the door, and a lean monthly number — the value case is concrete and should lead the marketing.
Position the corner lines on light. The corner windows are the building's architectural signature; renovated corner units justify premium pricing against the building's interior lines.
Anticipate the age question. Buyers' attorneys will see 1960 in city records; presenting the documented 1947–48 construction history upfront avoids confusion in diligence.
Prepare the board package early. A small co-op with an in-building managing agent moves efficiently when the application is complete; the 60–90 day cooperative timeline rewards preparation.
Comparable buildings
If you're considering 70 Clark Street, also evaluate:
- 75 Henry Street — large postwar Cadman Plaza cooperative; the north Heights' other value tier
- 44 Pineapple Street — large co-op alternative two blocks north
- Hamilton House (45 Pineapple Street) — elevator co-op peer in the north Heights
- 35 Clark Street — smaller co-op on the same street toward the Promenade
- 55 Hicks Street — small north Heights cooperative alternative
- 60 Pineapple Street — co-op peer on the neighboring block
- 87 Columbia Heights — cooperative near the Promenade; the view-side alternative
The full playbook — what goes in the package, how boards read your financials, the interview, and the timeline — plus sample cover, reference, and personal letters you can adapt.
How to read the facts on this page. Items attributed to an offering plan describe the building as it was offered at that filing — unit mix, square footage, the amenity program as planned. They are not a statement about how the building operates today. Tax and compliance figures are sourced separately to current City records and carry their own dates. House rules, staffing and fee policy can change by board resolution without any public filing: treat every policy line here as a starting point for diligence and confirm it with the managing agent. Where this page compares one building or neighborhood to another, that is our analysis of the recorded record — it names the measure, the period and the sample it rests on, and it is an observation about medians rather than a prediction about any particular apartment.
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