THE CONDO BOOK PROJECT

Diamond Haus

47 Diamond Street, Brooklyn, NY 11222

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Overview

Units
9 residential
Subway
6 min walk to Nassau Av GGreenpoint Av G, 14 min
Principals
Daniel Kaykov, Valeriy Katayev
Average $/sf
$1,162Homes in Schedule A, as first offered
Common charges
$342–$715 a monthSponsor's first-year estimate in Schedule A, July 1, 2023 to June 30, 2024
Offering price
$22.5 million total $18 million when first offered

The sponsor of record is 47 Diamond Street LLC, represented by Moritt Hock & Hamroff, LLP. The offering plan runs 323 pages. The sponsor has filed 2 amendments, the latest in August 2023. The nearest other condo plan on file is Wexford Condominium, next door.

Plan CD230002 · New · accepted Jun 9, 2023 · AG record ↗

Compare

FigureThis building1297 Wallabout28 units · 1.5 miaccepted 2023Troutman Partners38 units · 1.9 miaccepted 2023
Common ChargesPer Square Foot / Month$0.28In line$0.17$0.58
Average Offering PricePer Apartment$2.13MIn line$2.33M$740,000
Average PricePer Square Foot$1,162Above peers$1,006$1,101
Property TaxesPer Square Foot / Month$0.86Highest$0.56$0.18
Average Unit SizeSquare Feet1,836 SFIn line2,440 SF672 SF

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Unit mix, closings, budgets, finishes and the team, against 297 Wallabout and Troutman Partners, cited to the offering plans. No credit card required.

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How We Got This
  • Comps: the closest Brooklyn plans on size, $/SF and launch date, within 2 miles when possible.
  • Figures: each building's own offering plan, filed with the NY Attorney General. Nothing is estimated.
  • Checked: a price list publishes only when its math adds up, and building pages cite the plan pages.
  • Labels: In line is between the comps; Below/Above peers is past both by up to 15%; Lowest/Highest by more.

Closings Pro

Homes closed100% of the homes in Schedule A9 of 9
Closing prices vs. Schedule A9 homes: $18,154,200 at closing against $19,198,000 in Schedule A (p. 38)−5.4%
Average closing price9 homes, on their Schedule A square feet$1,099 / SF
Closingsfirst and latest recordedJan 4, 2024 – Dec 22, 2025

Sales recorded with the Department of Finance (ACRIS) through May 31, 2026: deeds, or transfer tax filings for a building on leased land, of $10,000 or more. A home's first sale since the plan was filed is the sponsor's closing; resales aren't counted. Closing prices are compared with the same home's Schedule A price, as first offered; a deed covering more than one home isn't compared. Amendments often change prices before a home closes, and a deed that includes parking or storage counts its full price. ACRIS records a sale weeks after closing, so recent contracts don't appear yet. Every building's sales.

All 9 closings
HomeRecordedClosing priceSchedule ADifference
1BJan 4, 2024$2,250,000$2,399,000 p. 38−6.2%
3AJan 16, 2024$2,500,000$2,500,000 p. 380%
3BJan 23, 2024$2,400,000$2,500,000 p. 38−4%
2AJan 29, 2024$1,629,200$1,600,000 p. 38+1.8%
2BFeb 6, 2024$1,650,000$1,600,000 p. 38+3.1%
1AFeb 9, 2024$2,275,000$2,399,000 p. 38−5.2%
1CSep 11, 2024$1,800,000$2,100,000 p. 38−14.3%
2CDec 22, 2025$1,500,000$1,600,000 p. 38−6.2%
3CDec 22, 2025$2,150,000$2,500,000 p. 38−14%

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Every home's recorded closing price against its Schedule A price, with the ACRIS document and the plan page.

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Budget

From our research: The Sponsor's Condo-Creation Fee in NYC · NYC Condo Insurance Costs Are Rising · Condo Supplies Cost per Unit, by Size

Team

Sponsor
47 Diamond Street LLC
Principals
Daniel Kaykov, Valeriy Katayev
Tax estimate
Highpoint Incentive Inc.Prepared the first-year real estate tax projection

From our research: Do NYC Developers Rehire the Same Firms?

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