100 Congress Street
100 Congress Street, Brooklyn, NY 11201
BBL 3002997501 · BIN 3396835
- Year built
- 2008
- Type
- Condominium
- Units
- 30
- Floors
- 6
- Landmark
- No
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 100 Congress 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.
Most for-sale housing on the Columbia Waterfront is converted loft space or low-rise 1980s stock. 100 Congress Street is one of the few mid-size elevator condominiums built from the ground up. It sits between Columbia Street and the expressway trench, a block from Cobble Hill. Buyers get new-construction systems, a garage and a roof deck at a waterfront-district price.
The page's main fact is a date. The building's 421-a exemption is ending. 421-a is the state program that exempted the added value of new construction from property tax for a fixed term. Here it is the 15-year version (Department of Finance code 5113, "421A 15 YR NO CAP"), with a benefit start of 2013 and a 2007 base year:
- The benefit covered every residential and parking lot at full value through 2022/23.
- It then stepped down to 80, 60 and 40 percent of the exempt value.
- It stands at 20 percent for 2026/27, the tax year that began July 1, 2026, and it ends after June 30, 2027.
The offering plan's first-year estimate shows the stakes. Residential taxes with the abatement were projected at about one-seventh of the unabated figure. Most of that step-up has already happened. One more step remains.
The second fact is the unit count. The plan offered 37 apartments, the declaration created 35 residential lots, and combinations since then leave 30. Floor plans in older listing materials may show lines that no longer exist.
Architecture and unit composition
GF55 Partners designed a six-story building on a lot about 125 by 98 feet (11,700 square feet) in an R6A district. R6A is a contextual zone that caps height and requires a street-wall building, which explains the building's mid-rise form on a block of older four- and five-story buildings. The site previously held a one-story building, demolished in 2008 under a DOB permit.
Department of Finance unit areas range from about 490 to about 1,850 square feet. The plan offered six apartments with private terraces, on the first, fifth and sixth floors. The 24 garage spaces are each a separate tax lot, sold individually. The storage bins and cabanas are licenses, not real property, so confirm how any license transfers with a unit.
Heat and hot water come from a gas boiler. The plan puts heat, air conditioning and cooking gas in the common charges and meters apartment electricity separately.
Building operations
The superintendent's unit. The board of managers bought Unit 104 from the sponsor in September 2011 with a sponsor-held purchase-money mortgage recorded in ACRIS. The plan describes the super's-unit note as a 20-year, interest-only loan with a balloon payment at maturity, carried in the residential owners' budget. If the recorded loan follows those terms, the balloon falls due around 2031. A smaller loan against the same unit was recorded in 2013. Ask the managing agent for the current balance and the refinancing plan.
Reserves. The plan's first-year budget held a 10 percent operating reserve and no separate capital reserve fund. No audited statements are on file. Current financials, the reserve balance, and any capital or façade work must come from the managing agent.
Sponsor position. The sponsor closed its residential sales from 2011 to 2014, and no residence is held by a sponsor entity today. An LLC named for the building's parking still holds three garage spaces on the current Department of Finance roll and has been selling them to owners through 2024–25.
Policy framework
- No board approval. The condominium can match a sale or lease on the same terms, but it cannot approve or reject a buyer.
- Buyer package. Financial statement, bank and employment or CPA verification, the contract, house-rules acknowledgment, a gym agreement for each resident over 14, and assumption of any prior alteration agreement, per the sale application on file.
- Fees. Application, credit-check, closing and move fees, a refundable move deposit, and a working capital contribution of two months' common charges, per the sale application on file.
- Moves. Weekdays 9 a.m. to 5 p.m., with 10 days' notice and a mover's insurance certificate.
- Pets. The sale application asks about pets and refers to the building rules, which are not on file. Confirm with the managing agent.
Recent sales
100 Congress Street trades as modern-era new construction, priced per square foot. Its comparable set is the Columbia Waterfront's other post-2005 condominiums and the newer condominiums in Cobble Hill and Carroll Gardens. Three adjustments belong in every valuation. First, parking: a deeded space is scarce in this district and sells on its own. Second, terraces. Third, taxes. Until mid-2027 the remaining abatement makes carrying costs look slightly lower than they will be. A buyer should underwrite the full bill.
Recorded resales between unrelated parties continued through 2025 and 2026. The building is small, so extend the comparable window several years and anchor district trends to the last complete year (2025). Unit-level transaction history is maintained in The Roebling Research Library and shared with clients during diligence.
The retrade record
Lines that have traded more than once in the public record — the building’s appreciation arc, apartment by apartment.
Recent closings at this building, sourced from NYC Department of Finance records. Apartment-level detail (line, condition, asking-price context) verified upon consultation request.
| Date | Unit | Price |
|---|---|---|
| Jun 30, 2025 | 301 | $1,240,000 |
| Nov 22, 2022 | 504 | $675,000 |
| Sep 20, 2022 | 401 | $1,149,000 |
| Aug 24, 2022 | 501 | $1,395,000 |
| Feb 23, 2022 | 406 | $1,550,000 |
| Oct 16, 2020 | PS 18 | $2,110,000 |
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 3-00299-7501) 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.
Buying here? Condo closing costs with a mortgage typically run 3 to 6% of the price. See NYC co-op and condo closing costs, line by line.
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What to know if you’re buying
Price the full tax bill. Ask the seller for the 2026/27 bill, then gross it up to remove the final 20 percent of exemption. From July 2027 that is the real number. Run True Monthly Carrying Cost on both.
Ask about the super's-unit loan. It is a building obligation with a balloon, and it belongs in the budget conversation.
Confirm what the unit includes. Check whether a garage space, storage bin or cabana comes with the apartment, and whether each one is deeded or licensed.
Check the layout against the current lot. Several apartments have been combined. Confirm the square footage and the declaration amendment that covers the unit.
What to know if you’re selling
Explain the tax change up front. The abatement is nearly gone, and most of the step-up has already hit. Say so, with the current bill, so the buyer does not discount twice.
Sell the garage space separately if you have one. Parking lots here trade on their own. Price the space and the apartment deliberately, together or apart.
Lead with no board approval. Buyers coming from the co-op market in Cobble Hill and Brooklyn Heights value a right-of-first-refusal process over a board interview.
Comparable buildings
If you're considering 100 Congress Street, also evaluate:
- 110 Warren Street (Columbia Commons): the district's larger ground-up condominium, nearby on Warren Street, on a longer 25-year 421-a term
- 118 Union Street (Fifth Columbia Terrace): low-rise new-construction condominium in the same district
- 1 Tiffany Place: the district's large loft conversion, with no abatement and deeded parking
- 60 Tiffany Place: a 2005–06 loft conversion whose J-51 benefit has run out
- 93 Rapelye Street (The Maritime): a 2004 condominium whose 15-year 421-a benefit has already run off, showing what happens after the phase-out
- 378 Baltic Street: a Boerum Hill condominium past its 15-year 421-a term
- 291 Union Street (Sackett Union): a larger new-construction condominium with parking in Carroll Gardens
- 345 Carroll Street: a newer Carroll Gardens condominium with parking and storage units
- 5 River Park (347 Henry Street): new construction in Cobble Hill, for the price ceiling across the trench
More Columbia Waterfront buildings
- 1 Tiffany Place — 1921 condominium
- 110 Warren Street (Columbia Commons) — 2010 condominium
- 118 Union Street (Fifth Columbia Terrace) — 1990 condominium
- 255 Columbia Street — 2014 condop
- 60 Tiffany Place — 1978 condominium
- 75 Columbia Street — 2008 condominium
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Columbia Waterfront.
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 100 Congress Street?
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