170 South First Street
170 South First Street, between Bedford and Driggs avenues · Williamsburg
Williamsburg, Brooklyn
BBL 3024067503 · BIN 3062964
- Year built
- 2015
- Type
- Condominium
- Amenities
- Elevator and roof deck; private terraces and in-home laundry in selected residences
- Landmark status
- Not an individual landmark; not in a historic district
- NYC Landmarks Preservation Commission and City Planning records, updated February 2026
Every recorded sale at this building, 2016–2026
Price-per-square-foot over time, the line- and floor-premium curves, and every recorded sale.
- Median $/sf, 2026 to date
- $1,582
- floor-adjusted, 1 sale
- Listing discount
- 1.7%
- Recorded sales
- 12
- On record
- 2016–2026
Own an apartment here? See what it would sell for.
A Private Pricing Opinion — what your apartment at 1SEVENTY 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
1SEVENTY is a seven-residence condominium designed by Nataliya Donskoy of ND Architecture & Design. The project enlarged a one-story commercial structure into a five-story mixed-use building. Its upper facade incorporates large windows and setbacks for private terraces. The Attorney General accepted the offering in October 2016, and it became effective in April 2017. A later filing identifies a board no longer controlled by the sponsor.
The homes include substantial two- and three-bedroom layouts, with several apartments extending through the building for northern and southern exposures. Selected three-bedroom homes have two private terraces, placing outdoor space at different ends of the plan. High ceilings and broad living areas accompany apartment sizes of roughly 1,300 to 1,450 square feet in the recorded sales history. An elevator serves the residences, and the building includes a roof deck.
Building staffing and amenities
- Elevator
- YesSource: NYC Department of Buildings elevator records
- Amenities noted
- Roof deckSource: 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
This building is below the 25,000 sq ft threshold at which LL97 limits apply to a building on its own. It is still covered if it shares a tax lot or condominium board with buildings totaling over 50,000 sq ft; confirm on DOB’s covered-buildings list.
See full Local Law 97 analysis →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.
| Date | Unit | Apartment | Price | PPSF | vs. Ask |
|---|---|---|---|---|---|
| Jul 17, 2026 | 4B | 3 BR · 2.5 BA · 1,454 sf | $2,300,000 | $1,582/sf | -3.2% |
| Jun 17, 2025 | 2B | 3 BR · 2.5 BA · 1,453 sf | $2,550,000 | $1,755/sf | -4.7% |
| May 1, 2020 | 3A | 3 BR · 2.5 BA · 1,315 sf | $1,990,000 | $1,513/sf | -0.3% |
| Aug 16, 2018 | 2A | 3 BR · 2.5 BA · 1,315 sf | $1,840,644 | $1,400/sf | +0.0% |
| Mar 14, 2018 | 5ASponsor Sale | 4 BR · 3.5 BA · 2,001 sf | $2,875,000 | $1,437/sf | +0.0% |
| Dec 12, 2017 | 2BSponsor Sale | 3 BR · 2.5 BA · 1,453 sf | $2,145,000 | $1,476/sf | +0.0% |
| Oct 16, 2017 | 3BSponsor Sale | 3 BR · 2.5 BA · 1,453 sf | $2,149,000 | $1,479/sf | +0.0% |
| Sep 14, 2017 | 4ASponsor Sale | 3 BR · 2.5 BA · 1,315 sf | $1,950,000 | $1,483/sf | -3.2% |
Market read. Most recent trades (2026 to date) cleared a median $1,582/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 1.7% 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 3-02406-7503; 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.
What would your apartment rent for?
Enter your apartment and I'll send you what it would rent for, from comparable closed leases at 1SEVENTY and nearby.
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.
Keep up with 1SEVENTY and its market
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What to know if you’re buying
The abatement is already partway through its term. A buyer's ownership period may extend beyond the remaining 421-a schedule. Here, projected carrying costs need to follow the building's actual phaseout, with the capped benefit and the apartment's taxable assessment considered separately.
Comparable buildings
- 251 South Third Street: A small contemporary condominium nearby with a similar building height.
- 211 North Fifth Street: Another boutique condominium for comparing two- and three-bedroom ownership layouts.
- 256 North Ninth Street: A newer small condominium with a somewhat taller profile.
- 764 Metropolitan Avenue: A condominium from a similar development period with a modest residential inventory.
More Williamsburg buildings
- 17 North Henry Street — condominium
- 170 Broadway, Brooklyn (The Broadway Arms Condominium) — 2002 condominium
- 170 North 11th Street (Lucent Condominium) — 2007 condominium
- 170 Williamsburg Street East — condominium
- 171 North 1st Street — 2021 condominium
- 172 North 10th Street — 1920 condominium
The neighborhood
For the full neighborhood — its buildings, character, and market — read The Roebling Team Guide to Williamsburg.
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 1SEVENTY?
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646.939.7375 · c.cohen@compass.com