345 Carroll Street

Four stories on a 26,743-square-foot lot, with about 57,200 square feet of residential area and roughly 3,950 square feet of commercial area on the tax roll. The residential lines run from garden-level units through second-, third- and fourth-floor apartments to a lettered penthouse tier, and the public land records show garden units, cabanas, parking spaces numbered into the twenties and a substantial storage inventory alongside the apartments.

The building's length is its defining plan characteristic. At 217 feet of frontage and roughly 55 feet of depth, apartments are wide and shallow rather than deep and narrow, and the difference in light between a street-facing and a rear-facing unit is a function of the courtyard arrangement rather than of a light well. Visit the specific apartment and look at what it faces.

Because the property sits outside the Carroll Gardens Historic District, exterior work here requires board approval and any Department of Buildings permits the scope calls for, with no Landmarks review. On the district blocks three streets west, the same window replacement would go through the Landmarks Preservation Commission. That is a real difference in cost and calendar, and one of the few advantages an off-district address carries in this neighborhood.

The condominium's own budget describes a conventional small-building operation: a superintendent and a porter on payroll, with contracts for the elevator, HVAC, the alarm system, landscape maintenance, boiler service, window cleaning and exterminating, against roughly $800,000 of annual common-charge income. Payroll runs at about half of total expenses, which is what a staffed low-rise building with grounds looks like.

Two structural features shape the numbers. The first is that the property tax line in the condominium's own budget is negligible — real estate taxes are the individual unit owners' obligation, as they are in any condominium, which is why a common charge here is not comparable to a cooperative maintenance figure. The second is the absence of a required reserve. The condominium's governing documents do not compel reserve accumulation, and the auditors have said so; funding for major work therefore comes from designated common charges, special assessments, a condominium loan, or deferral. Ask the board which of those it has used and what the current reserve balance is.

The condominium's Department of Housing Preservation and Development registration names Habitat Management, LLC as managing agent for the current cycle. Sponsor board control ran for five years after the first closing under the plan and has now expired; confirm the current composition of the board of managers and whether the transition to unit-owner control is complete.

On a building of this age the physical diligence list is short but specific: the roof, the elevator, the landscaped areas and drainage, the HVAC equipment, and any water history at the ground-floor and garden-level units. Request three years of financial statements, the current budget, the reserve balance, the minutes covering any assessment, and the building's insurance certificate.

Transfers: Condominium. Sales run through the board of managers' waiver of a right of first refusal rather than a board approval process. Confirm the current waiver procedure and turnaround time.

Leasing: Not documented in the amendments reviewed. Ask for the current rental policy, including any minimum lease term or cap on rented units.

Parking, storage and cabanas: Separately deeded units with their own tax lots. What conveys with a given apartment must be confirmed on the deed and the closing documents, not assumed from the listing.

Reserve funding: The governing documents do not require reserve accumulation, per the condominium's own audited statements. Understand how the board plans to fund major work.

Alterations: Board of managers approval plus Department of Buildings permits. No Landmarks review.

Pets, move-in fees: Not documented in the amendments reviewed. Request the current house rules.

Recent sales

Recent closings 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.

Market read. Most recent trades (2026 to date) cleared a median $1,515/sf (floor-adjusted) across 1 sale. Floor-adjusted means each sale is restated to a constant mix of floors, so the figure can differ from the plain median of the sales listed above. Median listing discount 0.0% from the last ask.

Sales sourced from NYC Department of Finance recorded transfers (BBL 3-00444-7503; each condominium apartment is its own tax lot). 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 from recorded condo declarations and offering plans.

Confirm exactly which units convey. Parking, storage and cabanas are separate deeded units here. Read the deed and the contract; do not rely on the listing description.

Pull three years of financials and the reserve balance. The condominium's own auditors have noted that its governing documents do not require reserve accumulation, and the fiscal 2019 statements record a sponsor advance to cover operating shortfalls. Both are reasons to look at the current numbers rather than assume.

Walk the block east. The Gowanus Canal, the Carroll Street Bridge and the buildings rising under the 2021 rezoning are all a short walk away. Form your own view.

Understand the district line. The Carroll Gardens Historic District stops at Hoyt Street. This block is outside it, which means no Landmarks review — and also no district-level protection over what gets built nearby.

Confirm board control has transitioned. Sponsor control ran five years from the first closing under the plan. Ask who sits on the board now.

Lead with the ground. A four-story building with 217 feet of frontage, landscaped grounds, an elevator, staff, parking and cabanas is a rare product in Carroll Gardens, and it competes with row houses as much as with apartments.

Price the parking and storage separately. They are separate deeded units. Bundling them into the apartment price obscures value on both sides of the trade.

Be straightforward about the location. Buyers can read a map. Carroll Gardens at the Gowanus edge, two blocks from the F and G, three from Smith Street, and outside the historic district. Say it plainly and let the price do the rest.

Have the condominium package ready. Financials, current budget, reserve balance, house rules, rental policy, the waiver procedure, the deeds for any parking or storage unit, and the alteration approvals for work done to the apartment.

If you're considering 345 Carroll Street, also evaluate:

• 344 Degraw Street — 26-unit Carroll Gardens condominium of the previous development generation; the closest tenure-and-scale comparison
• 291 Union Street (Sackett Union) — the neighborhood's larger new-construction condominium, with parking and a rooftop
• 145 President Street — boutique new-construction condominium at the neighborhood's western edge
• 358 Court Street — the South Congregational Church complex; Carroll Gardens' church conversion in condominium form
• 505 Court Street (Court Street Lofts) — the neighborhood's loft alternative further south on Court
• 205 12th Street — the comparable condominium south of the canal
• 450 Clinton Street — the Old Westminster Church cooperative on the First Place garden block; the co-op comparison
• 500 4th Avenue — the larger new-development alternative on the neighborhood's eastern edge
• 323 Bergen Street — Boerum Hill condominium at similar scale; the cross-neighborhood comparison