- Type
- Condominium
- Landmark
- No
- Amenities
- Elevator; virtual entry; central air; in-unit laundry; private outdoor space in selected homes
Every recorded sale at this building, 1998–2025
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf
- $1,665
- Listing discount
- 0.2%
- Recorded sales
- 6
- On record
- 1998–2025
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 684 Dean 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.
About the building
684 Dean Street is a six-floor condominium with five residences in Prospect Heights. New-building filings identify Tahir Demircioglu as the architect. Its compact apartment inventory occupies a taller envelope than the surrounding townhouse pattern, with an elevator and a virtual entry system. Initial individual apartment closings took place in late 2025.
The lower home is a three-bedroom garden duplex arranged across the first and second floors, with a patio reached from the living area. Middle apartments include two-bedroom, two-bath layouts; the upper penthouse has three bedrooms. Central air and in-unit laundry are included.
Recent sales
Recent closings 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 |
|---|---|---|---|---|---|
| Dec 30, 2025 | TH1 | 3 BR · 2.5 BA · 1,796 sf | $2,990,000 | $1,665/sf | -0.2% |
| Dec 30, 2025 | 1 | 3 BR · 2.5 BA · 1,796 sf | $2,990,000 | $1,665/sf | -0.2% |
| Dec 2, 2025 | 4 | 2 BR · 2 BA · 1,127 sf | $1,800,000 | $1,597/sf | -1.4% |
| Jul 27, 2020 | — | 6 BR · 2.5 BA · 2,319 sf | $1,950,000 | $841/sf | -11.4% |
Market read. Most recent trades (2025) cleared a median $1,665/sf across 3 sales. Median listing discount 0.2% from the last ask — a recurring negotiation gap worth pricing into any offer or listing strategy.
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 3-01138-7503) 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 from recorded condo declarations and offering plans.
At the recent median sale of $2.99M (3 sales since 2024), a buyer putting 25% down would pay about $120,312 to close, or 4.0% of the price.
- Mansion tax: $37,375
- Mortgage recording tax: $43,168
- Title insurance: $13,455
- Attorneys, lender, building fees, reserves and filings: $26,314
Assumes a resale (the seller pays transfer taxes), a $4,500 attorney fee and a mortgage on the rest.
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What to know if you’re buying
A five-home association maintains a six-floor building. Elevator upkeep, façade repairs and roof expenses fall on a small ownership group. Project eligibility can receive closer scrutiny from a mortgage lender at this scale, so the building's financing approval matters alongside approval of the individual borrower.
Comparable buildings
- 357 Prospect Place: a nearby small condominium with a similarly limited apartment inventory.
- 532 Clinton Avenue: a taller condominium with a larger association near the Prospect Heights boundary.
- 280 Saint Marks Avenue: a substantially larger modern condominium for comparing new-construction layouts and shared amenities.
More Prospect Heights buildings
- 618 Dean Street (The Merchant House), 618 and 626 Dean Street — 2000 condop
- 650 Bergen Street — 2013 condominium
- 660 Dean Street — 1931 condominium
- 700 Pacific Street (Newswalk) — 1927 condominium
- 856 Washington Avenue — 2017 condominium by Kutnicki Bernstein Architects
- 876 Pacific Street — 1930 condominium
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Prospect Heights.
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 684 Dean Street?
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