45 Plaza Street West
45 Plaza Street West, at Union Street, Park Slope, Brooklyn
Park Slope, Brooklyn
BBL 3010640021 · BIN 3024626
- Year built
- 1941
- Type
- Cooperative
- Floors
- 6
- Amenities
- Elevator, live-in superintendent, shared gardens, common laundry, bicycle room and storage
- Landmark status
- Not an individual landmark; in the Park Slope Historic District Extension II
- NYC Landmarks Preservation Commission records, updated February 2026
- Pied-à-terre
- Permitted
- Dogs and cats
- Permitted
Every recorded sale at this building, 2004–2026
Bedroom-by-bedroom medians, the full transfer record, and how units trade against ask.
- 1BR median, 2025–2026
- $950K
- 3 qualifying sales
- Recent range
- $765K – $2.1M
- Listing discount
- -7.2%
- Recorded transfers
- 34
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A Private Pricing Opinion — what your apartment at 45 Plaza Street West 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.
45 Plaza Street West is a 1941 Moderne apartment house on an angled site near Grand Army Plaza. The six-story building reaches from Plaza Street West to Union Street, with shared gardens and apartments whose orientations follow the unusual footprint. LPC included it in the Park Slope Historic District Extension II in 2016.
Its construction belongs to a later chapter of Park Slope's development. LPC connects the area's additional apartment-house construction in this period to the transportation improvements of the 1930s. The building's restrained Moderne character sits within a district better known for earlier residential architecture.
The setting brings several major public spaces close together: Grand Army Plaza, the entrance to Prospect Park and the central library. The building itself supplies a more private form of outdoor space through its shared garden areas, and some apartments have balconies overlooking the plaza or neighborhood.
Architecture and unit composition
LPC classifies the building as Moderne. Its six-story mass and angled footprint create a different apartment arrangement from a narrow mid-block building. Homes occupy plaza-facing, Union Street and inward-facing positions, with some layouts taking light from more than one direction.
The inventory includes large one-bedroom apartments, two-bedroom homes and combinations. Entry foyers, separate dining areas, windowed bathrooms and numerous closets recur in the plans. Some one-bedroom homes approach the interior area of a small two-bedroom apartment elsewhere, with recorded examples around 950 to 975 square feet.
Upper-floor apartments can have treetop outlooks toward the plaza. Balconies occur in part of the inventory, and a combined top-floor residence has traded with a larger multi-room layout and outdoor space. Those homes form a distinct category from the smaller inward-facing apartments.
The shared gardens give the building both a landscaped street edge and an internal outdoor amenity. The inner garden includes seating and dining areas. An apartment looking into that space has a different exposure from a plaza-facing home, even though both benefit from the same location.
The building's historic-district status covers its exterior character. LPC's designation is attached to this property, not merely to the nearby brownstone blocks. Exterior alterations therefore take place within the district's preservation framework.
Building operations
A live-in superintendent supports the cooperative's daily operations. Common laundry, bicycle storage and additional storage supplement the elevator and shared outdoor areas. The garden's seating, planting and dining use create an amenity at ground level that does not require a private terrace.
The property consists of one cooperative with multiple street addresses. The Plaza Street West and Union Street frontages belong to the same building. Its tax lot is in Class 2, and there is no current building-wide abatement. Apartment carrying costs therefore include the cooperative's ordinary property-tax obligations through maintenance.
PLUTO shows a built FAR below the district's stated residential allowance. The building is also inside a designated historic district; the zoning figure alone doesn't mean an addition would be permitted. Any change to its exterior form would have to account for that landmark context.
The public-facing portions of this angled corner property are part of its operating responsibilities. The multiple frontages and gardens are features of the cooperative as a whole, while any private balcony belongs to the particular apartment's configuration. An interior-facing home and a plaza-facing home share those common obligations.
Application and transaction fees
Fees below are from building management's published schedule, as of July 2026. They are shown as published, item by item; no total is added because the total depends on the transaction. Deposits are listed apart from nonrefundable charges.
Purchase
10 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Additional Processing FeeConditionalPaid to management | Paid by Buyer | When With the application | Amount $200 if there is any application with more than one (1) co-applicant | Refundable Non-refundable |
| Compliance FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Not stated |
| Credit Check FeePer applicantPaid to management | Paid by Buyer | When With the application | Amount $150 per applicant/adult occupant | Refundable Non-refundable |
| Move In FeePaid to the building | Paid by Buyer | When With the application | Amount $250 | Refundable Non-refundable |
| Processing FeePaid to management | Paid by Buyer | When With the application | Amount $700 | Refundable Non-refundable |
| Recognition Agreement Review FeeConditionalPaid to management | Paid by Buyer | When With the application | Amount $325 if financing | Refundable Not stated |
| Move Out FeePaid to the building | Paid by Shareholder | When With the application | Amount $250 | Refundable Non-refundable |
| Flip taxPer sharePaid to the building | Paid by Seller | When At closing | Amount $15.00 per share | Refundable Not stated |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move In DepositPaid to the building | Paid by Buyer | When With the application | Amount $500 | Refundable Refundable |
| Move Out DepositPaid to the building | Paid by Shareholder | When With the application | Amount $500 | Refundable Refundable |
Sublet
9 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Shareholder | When With the application | Amount $550 | Refundable Non-refundable |
| Credit/Background Check FeePer applicantPaid to management | Paid by Shareholder | When With the application | Amount $150 per applicant/adult occupant | Refundable Non-refundable |
| Move-Out FeePaid to the building | Paid by Shareholder | When With the application | Amount $200 | Refundable Non-refundable |
| Sublet FeeRecurringCharged upon beginning of subleasePaid to the building | Paid by Shareholder | When With the application | Amount Equal to 10% of the monthly rent | Refundable Not stated |
| Move-In FeePaid to the building | Paid by Subtenant | When With the application | Amount $200 | Refundable Non-refundable |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move Out DepositPaid to the building | Paid by Shareholder | When With the application | Amount $500 | Refundable Refundable |
| Move In DepositPaid to the building | Paid by Subtenant | When With the application | Amount $500 | Refundable Refundable |
Sublet renewal
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Sublet Fee - Only an additional year will be allowedRecurring2 years totalPaid to the building | Paid by Shareholder | When With the application | Amount Equal to 10% of the monthly rent | Refundable Not stated |
| Processing FeePaid to management | Paid by Subtenant | When With the application | Amount $200 | Refundable Non-refundable |
Refinance
2 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Document Re-Submission Fee. For applications that are dramatically incomplete.ConditionalConditions: If applicablePaid to management | Paid by Shareholder | When With the application | Amount $100 | Refundable Not stated |
| Processing FeePaid to management | Paid by Shareholder | When With the application | Amount $400 | Refundable Non-refundable |
Ownership transfer
21 items
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Buyer | When With the application | Amount $700 | Refundable Non-refundable |
| Compliance FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Not stated |
| Credit Check FeePer applicantPaid to management | Paid by Buyer | When With the application | Amount $150 per applicant/adult occupant | Refundable Non-refundable |
| Move In FeePaid to the building | Paid by Buyer | When With the application | Amount $250 | Refundable Non-refundable |
| Move Out FeePaid to the building | Paid by Shareholder | When With the application | Amount $250 | Refundable Non-refundable |
| Recognition Agreement Review FeeConditionalPaid to management | Paid by Buyer | When At closing | Amount $325 if financing | Refundable Not stated |
| Flip taxPer sharePaid to the building | Paid by Shareholder | When At closing | Amount $15.00 per share | Refundable Not stated |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move In DepositPaid to the building | Paid by Buyer | When With the application | Amount $500 | Refundable Refundable |
| Move Out DepositPaid to the building | Paid by Shareholder | When With the application | Amount $500 | Refundable Refundable |
Transfer: trust
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Non-refundable |
| Compliance FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Not stated |
| Closing FeePaid to management | Paid by Shareholder | When At closing | Amount $500 | Refundable Non-refundable |
Transfer: estate
Fees and charges
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Application Processing FeePaid to management | Paid by Buyer | When With the application | Amount $700 | Refundable Non-refundable |
| Compliance FeePaid to management | Paid by Buyer | When With the application | Amount $500 | Refundable Not stated |
| Credit Check FeePer applicantPaid to management | Paid by Buyer | When With the application | Amount $150 per applicant/adult occupant | Refundable Non-refundable |
| Move In FeePaid to the building | Paid by Buyer | When With the application | Amount $250 | Refundable Non-refundable |
| Move Out FeePaid to the building | Paid by Shareholder | When With the application | Amount $250 | Refundable Non-refundable |
| Recognition Agreement Review FeeConditionalPaid to management | Paid by Buyer | When At closing | Amount $325 if financing | Refundable Not stated |
| Flip taxPer sharePaid to the building | Paid by Shareholder | When At closing | Amount $15.00 per share | Refundable Not stated |
Deposits
| Item | Paid by | When | Amount | Refundable |
|---|---|---|---|---|
| Move In DepositPaid to the building | Paid by Buyer | When With the application | Amount $500 | Refundable Refundable |
| Move Out DepositPaid to the building | Paid by Shareholder | When With the application | Amount $500 | Refundable Refundable |
Management updates its schedule without a public filing. The date is when management last updated the page, not when a rule changed. Confirm the current schedule with management before you apply.
Considering an apartment here? Send Corey the listing to discuss the building's costs and purchase requirements.
Own an apartment here? Request an apartment-specific pricing review.
Sublet and pied-à-terre policy
A condominium owner leasing a unit and a co-op shareholder subletting are different rules, and a building-wide rule is different from a restriction on one apartment. This is the building's rule; confirm it for the specific apartment.
- Subletting by shareholders
- Not verified
- Pied-à-terre ownership
- PermittedSource: The Roebling Team's building profile
Considering an apartment here? Send Corey the listing to discuss the sublet and pied-à-terre rules for that apartment.
Pets and in-unit washer/dryer
- Dogs and cats
- PermittedSource: The Roebling Team's building profile
- In-unit washer/dryer
- Not verified
Considering an apartment here? Send Corey the listing to confirm the pet and washer/dryer rules for that apartment.
Monthly carrying charges in recent sales
- Maintenance, per room
- $400 per room a monthMedian of 4 recorded sales since October 2023Source: recorded sales, refreshed October 2026
Maintenance as recorded with each sale. A co-op's maintenance already covers the building's real estate taxes and the building's own mortgage, if it has one; add your own loan payment for the monthly outlay. A summary of recorded sales, not a current bill; charges change.
Building staffing and amenities
- Live-in superintendent
- YesSource: The Roebling Team's building profile
- Elevator
- YesSource: NYC Department of City Planning records (PLUTO)
- Amenities noted
- Garden, bike storage, laundry roomSource: The Roebling Team's building profile
Staffing and amenities as our building profile and recent listing records describe them. A feature not listed is not confirmed absent. Outdoor space, parking and some facilities can belong to particular apartments or to a separate owner; confirm access for the specific apartment.
Local Law 97
- 2024–2029 annual penalty
- $0 (under cap)
- 2030–2034 annual penalty
- $3,659/yr
- Per unit / month range
- $0 – $7
- Modeled exposure split equally across 42 units (the residential count on the city's lot record). Not an assessed amount; co-op shareholders are typically charged by share allocation.
Source: NYC LL84 benchmarking and PLUTO · The Roebling Research Library. City data last refreshed October 2026.
See full Local Law 97 analysis — emissions history, scenarios, methodology →Facade safety — Local Law 11
The latest available filing classified the facade as SWARMP — Safe With A Repair and Maintenance Program: the inspector (QEWI) identified conditions requiring monitoring or repair, with repairs due by the deadline stated in the filing. The scope, timeline, and how the building funds the work are building-specific — we review the filings and board materials for you.
How to read this, and where it comes from
QEWI = Qualified Exterior Wall Inspector — a licensed professional engineer or registered architect who meets DOB’s FISP qualifications and signs the report (the independent expert, not the managing agent).
Penalties shown are amounts DOB assessed against filings on record across 2005–10 to 2020–25. The FISP dataset does not record whether they were paid, contested or remain open, so treat the figure as history rather than a current balance and confirm the building’s standing with the managing agent.
Source: NYC DOB facade filings (FISP) · The Roebling Research Library. City data last refreshed October 2026.
Recent sales
Recent transfers at this building, from The Roebling Research Library. 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 |
|---|---|---|---|---|---|
| May 27, 2026 | 1F | 2 BR · 1 BA | $1,045,000 | +7.2% | |
| Mar 12, 2026 | 5A | 1 BR · 1 BA · 975 sf | $985,000 | $1,010/sf | +9.4% |
| Mar 9, 2026 | 1D | 1 BR · 1 BA · 950 sf | $765,000 | $805/sf | +2.1% |
| Feb 4, 2025 | 5B | 1 BR · 1 BA | $950,000 | +18.9% | |
| Jan 23, 2023 | 6AB | 3 BR · 2 BA | $2,125,000 | -5.6% | |
| Aug 2, 2022 | 6D | 2 BR · 1.5 BA | $1,150,000 | +0.0% | |
| Aug 3, 2021 | 1F | 2 BR · 1 BA | $898,000 | -4.0% | |
| May 3, 2021 | 2A | 2 BR · 1 BA | $1,150,000 | +0.0% |
Market read. Most recent trades (2026 to date) cleared a median $908/sf (recorded) across 2 sales. Median listing discount 0.0% from the last ask.
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 3-01064-0021). Apartment-level facts (line, condition, asking-price context) curated and cross-verified in The Roebling Research Library. 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 would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 45 Plaza Street West and nearby.
At the recent median sale of $968K (4 transfers in the past 24 months, since November 12, 2024), a buyer putting 25% down would pay about $12,178 to close, or 1.3% of the price.
- Mansion tax: $0
- No mortgage recording tax or title insurance on a co-op purchase
- Attorneys, lender, building fees and filings: $12,178
Assumes a resale (the seller pays transfer taxes), a $4,500 attorney fee and a mortgage on the rest.
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Comparable buildings
- 40 Prospect Park West — An apartment-house cooperative from the same early-1940s period, with a similar mid-rise form and park-oriented setting.
- 225 Park Place — A cooperative of similar era and scale for buyers comparing large apartment-house plans in the surrounding neighborhood.
- 20 Plaza Street East — A larger cooperative from the same broad period on the opposite side of Grand Army Plaza.
- 39 Plaza Street West — A nearby prewar cooperative with a similar residential count in a much taller building.
- 235 Lincoln Place — A late-1930s cooperative with a comparable low-rise scale and an interior-block setting.
More Park Slope buildings
- 444 12th Street (Ansonia Muse) — 1881 condominium
- 445 5th Avenue (The Slope on Fifth), 445 Fifth Avenue — 2025 condominium
- 445 First Street — 1931 co-op
- 450 3rd Street — 1940 co-op
- 452 12th Street — 1986 condominium
- 457 First Street, 457 First Street · Park Slope — 1940 co-op
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Park Slope.
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.
Considering a move at 45 Plaza Street West?
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646.939.7375 · c.cohen@compass.com