41 Blue Slip
What the numbers say
Generated from this property's own figures using the rules set out in our methodology. Every statement below refers to a number shown on this page.
Already larger than residential zoning would allow
The building occupies a floor-area ratio of 9.23, against a residential limit of 6.02 — it is over that limit by 3.21. A building in this position almost always predates the current rules and is legally non-conforming: it may generally remain, but it typically cannot be enlarged for residential use, and it may not be rebuildable as it stands.
A light open-violation load
Only 5 violations are currently open across 421 residential units, with $0.00 outstanding. For a building of this age that is a modest figure.
Last recorded sale
Recorded at $59,757,357 on 27 Oct 2015 — $141,941 per residential unit, $133 per built square foot, 0.95× the assessed value.
Assessed value trend
Assessed value has risen 50.7% across the 5 assessment years on record (2023 to 2027), standing at $63,135,000. Because tax is levied on the assessed figure rather than on market value, a sustained move here tends to show up in the bill.
Development & zoning
Floor-area ratio
| Built | 9.23 |
|---|---|
| Residential limit | 6.02 |
| Commercial limit | 0.00 |
| Community-facility limit | 6.50 |
Development headroom (calculated) calculated
| Highest permitted ratio | 6.50 |
|---|---|
| Unused ratio | -2.73 |
| Unused buildable area | — |
| Lot area | 48,560 sq ft |
Value & taxes
Assessment
| Assessed total | $63,135,000 |
|---|---|
| Assessed land | $2,185,200 |
| Assessed building | $60,949,800 |
| Market value on record | $140,300,000 |
| Assessed as % of market | 45.0% |
Tax
| Tax class | 2 |
|---|---|
| Taxable assessed | $63,135,000 |
| Tax rate | 12.502% |
| Estimated annual levy | $7,893,137.70 |
| Tax exemption (assessed value) | 421-a — $63,076,740 (through 2057) |
The levy is an estimate — taxable value × the published rate for the class. It does not account for exemptions or abatements the property may carry, and will not match an actual bill. It is not the property's total debt to the city: unpaid tax and water arrears are not shown anywhere on this page.
Assessed value by year
| Year | Assessed value | Change |
|---|---|---|
| 2027 | $63,135,000 | — |
| 2026 | $56,594,700 | +11.6% |
| 2025 | $53,447,400 | +5.9% |
| 2024 | $42,291,000 | +26.4% |
| 2023 | $41,901,750 | +0.9% |
Building & occupancy
Structure
| Year built | 2018 |
|---|---|
| Floors | 39 |
| Building area | 448,412 sq ft |
| Residential area | 378,392 sq ft |
| Commercial area | 70,020 sq ft |
Occupancy
| Total units | 424 |
|---|---|
| Residential units | 421 |
| Storefronts | 1 |
| Residential Avg unit size | 899 sq ft (calculated) |
| Commercial Avg unit size | 23,340 sq ft (calculated) |
| Building class | D7 |
Neighborhood, risk & energy
Neighborhood & transit
| Nearest subway | Greenpoint Av (G) — 0.44 mi |
|---|---|
| School district | 14 |
| Police precinct | 94 |
| Nearest firehouse | Engine 238/Ladder 106 — 205 Greenpoint Ave. |
Location risk
| Flood zone | High-risk (Zone AE) |
|---|---|
| Hurricane evacuation zone | Zone 2 |
| Projected floodplain | In the projected 2050s floodplain |
| Environmental restriction | Hazardous materials, air quality, noise |
| Cleanup site | Voluntary cleanup site (completed) |
Energy & emissions
| Energy use intensity | 56.8 kBtu/ft² |
|---|---|
| Greenhouse-gas emissions | 2,186 metric tons/yr |
Comparable sales
| Address | Sale date | Price | Sq ft | $/sq ft |
|---|---|---|---|---|
| 99 Commercial Street | 2024-06-06 | $27,500,000 | 75,490 | $364 |
| West Street | 2018-05-23 | $106,507,911 | — | — |
| Commercial Street | 2018-05-23 | $41,889,165 | — | — |
| 5 Blue Slip | 2018-03-29 | $911,161 | — | — |
Record activity
Compliance calculated
| Open violations | 5 |
|---|---|
| Open per residential unit | 0.0 (calculated) |
| Enforcement penalties | $0.00 |
| Safety-violation penalties | Not available |
| Total penalties owed | $5,000.00 (calculated) |
| On tax-lien sale list | No |
Activity
| Complaints recorded | 339 |
|---|---|
| Permits / alterations | 32 |
| Recorded documents | 88 |
| Legal proceedings | 0 |
Total penalties owed combines two separate debts — enforcement penalties (from summonses) and safety-violation penalties (unfiled inspections and reports on boilers, elevators, facades and energy use). The second kind accrues quietly and is routinely missed; it is a standing debt on the building, not a fine someone can walk away from. The safety figure could not be retrieved for this property, so no total is shown — we would rather show nothing than a total that silently omits it. Neither figure includes unpaid property tax or water and sewer arrears, which are frequently the largest number of all and appear nowhere on this page. For a true payoff figure, go to the city directly.
Ownership & last recorded sale
Owner of record
| Owner | Bop Greenpoint F LLC |
|---|---|
| Parcel | 3024720050 |
| Block | 2472 |
| Lot | 50 |
| Mortgage on record | $75,200,000 (2021) — Mf1 Capital LLC — note assigned |
Last recorded transfer
| Date | 27 Oct 2015 |
|---|---|
| Recorded price | $59,757,357 |
| Price per unit | $141,941 |
| Price vs assessed | 0.95× |
Owner of record comes from the public land-use record and may lag a recent sale. It is frequently a holding company rather than an individual. If you own or manage this property and believe something here is wrong, tell us — we read and respond to every message of that kind.
Open violations
Open violations only. A violation that was raised and later corrected is not counted — an older building accumulates hundreds of those, and the number says more about its age than its condition.
| Issued | Category | Class | Status | Amount due | Description |
|---|---|---|---|---|---|
| 5 Aug 2026 | Housing | B | NOV SENT OUT | — | 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR THE CEILING IN THE FOYER LOCATED AT APT 36A, 36th STORY, 2nd APARTMENT FROM NORTH AT EAST |
| 5 Aug 2026 | Housing | B | NOV SENT OUT | — | 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE MECHANICAL VENTILATION SYSTEM AT CEILING IN THE BATHROOM LOCATED AT APT 35L, 35th STORY, 2nd APARTMENT FROM WEST AT NORTH |
| 5 Aug 2026 | Housing | B | NOV SENT OUT | — | 27-2026 ADM CODE REMOVE ALL OBSTRUCTIONS AND REPAIR ALL DEFECTS IN WASTELINE AT SINK IN THE KITCHEN LOCATED AT APT 5B, 5th STORY, 3rd APARTMENT FROM NORTH AT EAST |
| 12 Feb 2026 | Enforcement | CLASS - 2 | ACTIVE | — | UPON INSPECTION I OBSERVED A SIDEWALK SHED INSTALLED AT EXPOSURE 1 WITH NOT SIDEWALK SHED INFORMATION PANEL INSTALLED CONTRARY TO CODE 3301.9.2 SIDEWALK SHED PARAPET INFORMATION PANEL. WHERE A SIDEWALK SHED IS |
| 12 Feb 2026 | Enforcement | CLASS - 2 | ACTIVE | — | I OBSERVED A SIDEWALK SHED INSTALLED AT EXPOS 1 CONTRARY TO CODE. MULTIPLE VERTICAL MEMBERS PLACED WITHIN 18 INCHES FROM THE FACE OF THE CURB LINE AND DRIVEWAY NOT PROTECTED FROM DISPLACEMENT CONTRARY TO CODE 3 |
Complaints
A complaint is an allegation, not a finding — many are dismissed. A sustained pattern is nevertheless informative about how a building is run.
| Date | Problem | Type | Status | Closed |
|---|---|---|---|---|
| 3 Aug 2026 | Allowed in Smoke Free Area | Smoking or Vaping | In Progress | — |
| 2 Aug 2026 | Allowed in Smoke Free Area | Smoking or Vaping | In Progress | — |
| 1 Aug 2026 | Allowed in Smoke Free Area | Smoking or Vaping | In Progress | — |
| 28 Jul 2026 | Sewage | Industrial Waste | Closed | 28 Jul 2026 |
| 8 Jul 2026 | Loud Music/Party | Noise - Street/Sidewalk | Closed | 9 Jul 2026 |
| 7 Jul 2026 | Loud Music/Party | Noise - Residential | Closed | 8 Jul 2026 |
| 1 Jul 2026 | ENTIRE BUILDING | HEAT/HOT WATER | Closed | 3 Jul 2026 |
| 28 Jun 2026 | WATER SUPPLY | PLUMBING | Closed | 16 Jul 2026 |
| 28 Jun 2026 | ENTIRE BUILDING | HEAT/HOT WATER | Closed | 29 Jun 2026 |
| 25 Jun 2026 | Lead Kit Request (Residential) (L10 | Lead | Closed | 26 Jun 2026 |
| 16 Jun 2026 | Lead Kit Request (Residential) (L10 | Lead | Closed | 17 Jun 2026 |
| 14 Jun 2026 | Loud Music/Party | Noise - Street/Sidewalk | Closed | 14 Jun 2026 |
| 8 Jun 2026 | ENTIRE BUILDING | HEAT/HOT WATER | Closed | 9 Jun 2026 |
| 7 Jun 2026 | ENTIRE BUILDING | HEAT/HOT WATER | Closed | 8 Jun 2026 |
| 7 Jun 2026 | ENTIRE BUILDING | HEAT/HOT WATER | Closed | 8 Jun 2026 |
| 7 Jun 2026 | APARTMENT ONLY | HEAT/HOT WATER | Closed | 8 Jun 2026 |
| 7 Jun 2026 | APARTMENT ONLY | HEAT/HOT WATER | Closed | 8 Jun 2026 |
| 7 Jun 2026 | ENTIRE BUILDING | HEAT/HOT WATER | Closed | 8 Jun 2026 |
| 31 May 2026 | Loud Music/Party | Noise - Residential | Closed | 31 May 2026 |
| 24 May 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Jun 2026 |
| 23 May 2026 | Loud Music/Party | Noise - Street/Sidewalk | Closed | 23 May 2026 |
| 22 May 2026 | Loud Music/Party | Noise - Residential | Closed | 22 May 2026 |
| 4 May 2026 | Wasting Faucets,Sinks,Flushometer,Urinal,Etc. - Other (CWO | Water Conservation | Closed | 11 May 2026 |
| 23 Apr 2026 | Loud Music/Party | Noise - Residential | Closed | 24 Apr 2026 |
| 21 Apr 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Jun 2026 |
| 11 Apr 2026 | Loud Talking | Noise - Residential | Closed | 11 Apr 2026 |
| 4 Apr 2026 | Loud Music/Party | Noise - Residential | Closed | 5 Apr 2026 |
| 4 Apr 2026 | Loud Music/Party | Noise - Residential | Closed | 4 Apr 2026 |
| 3 Apr 2026 | Loud Music/Party | Noise - Residential | Closed | 4 Apr 2026 |
| 27 Mar 2026 | Loud Music/Party | Noise - Residential | Closed | 28 Mar 2026 |
| 27 Mar 2026 | Loud Music/Party | Noise - Residential | Closed | 28 Mar 2026 |
| 27 Mar 2026 | Loud Music/Party | Noise - Residential | Closed | 28 Mar 2026 |
| 26 Mar 2026 | APARTMENT ONLY | HEAT/HOT WATER | Closed | 27 Mar 2026 |
| 25 Mar 2026 | Loud Music/Party | Noise - Residential | Closed | 25 Mar 2026 |
| 15 Mar 2026 | Banging/Pounding | Noise - Residential | Closed | 16 Mar 2026 |
| 12 Mar 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Mar 2026 |
| 11 Mar 2026 | APARTMENT ONLY | HEAT/HOT WATER | Closed | 13 Mar 2026 |
| 11 Mar 2026 | ENTIRE BUILDING | HEAT/HOT WATER | Closed | 13 Mar 2026 |
| 3 Mar 2026 | Other/Unknown | Street Sign - Damaged | Closed | 4 Mar 2026 |
| 3 Mar 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Mar 2026 |
| 27 Feb 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Mar 2026 |
| 27 Feb 2026 | Banging/Pounding | Noise - Residential | Closed | 27 Feb 2026 |
| 22 Feb 2026 | Lead Kit Request (Residential) (L10 | Lead | Closed | 24 Feb 2026 |
| 20 Feb 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Mar 2026 |
| 20 Feb 2026 | VENTILATION SYSTEM | GENERAL | Closed | 30 Mar 2026 |
| 18 Feb 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Mar 2026 |
| 16 Feb 2026 | N/A | Illegal Fireworks | Closed | 17 Feb 2026 |
| 10 Feb 2026 | APARTMENT ONLY | HEAT/HOT WATER | Closed | 16 Feb 2026 |
| 9 Feb 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Mar 2026 |
| 4 Feb 2026 | Allowed in Smoke Free Area | Smoking or Vaping | Closed | 20 Mar 2026 |
Showing the 50 most recent of 150. The full set is available in the interactive report.
Permits & alterations
The absence of a permit does not prove no work was done — it may equally mean work was done without one.
| Issued | Type | Status | Work |
|---|---|---|---|
| 23 Jul 2025 | Sidewalk Shed | Permit Issued | INSTALLATION OF HEAVY DUTY SIDEWALK SHED. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION, ALL WORK TO COMPLY WITH CHAPTER 33 OF NYCBC |
| 22 Jul 2025 | General Construction | Signed-off | EXTERIOR RENOVATIONS AS PER PLANS FILED HEREWITH. NO CHANGE TO USE, EGRESS OR OCCUPANCY |
| 1 Jul 2025 | Suspended Scaffold | Signed-off | Installation of suspended scaffold for facade work or inspection |
| 30 Sep 2024 | General Construction | Permit Issued | INTERIOR RENOVATION OF EXISTING GROUND FLOOR RETAIL SPACE IN AN EXISTING RESIDENTIAL BUILDING. NO CHANGE TO OCCUPANCY, OR EGRESS REQUIRED |
| 21 Jul 2023 | Sidewalk Shed | Signed-off | INSTALLATION OF TEMPORARY HEAVY DUTY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY. SIDEWALK SHED SHALL COMPLY WITH CHAPTER #33 OF 2022 THE NYC BUILDING CODE. LIVE LOAD 300PSF |
| 15 Nov 2022 | Protection and Mechanical Methods | Permit Issued | USE OF TEMPORARY SUSPENDED SCAFFOLD FROM PERMANENTLY INSTALLED DAVIT SYSTEM DURING CONST OPERATIONS. SUSP. SCAFFOLD SHALL COMPLY WITH CH#33 OF THE NYC BC. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION. ONE PLATFORM SHALL BE USED AT A TIME |
| 18 Oct 2022 | Protection and Mechanical Methods | Signed-off | Installation and use of temporary suspended scaffold from davit support system as per plans filed herewith |
| 14 Oct 2021 | Protection and Mechanical Methods | Permit Issued | INSTALLATION OF TEMPORARY SUSPENDED SCAFFOLD PER DRAWINGS. CD-5 NOT REQUIRED BECAUSE SUSPENDED SCAFFOLD WILL BE USED DURING NB CONST. SUSPENDED SCAFFOLD SHALL COMPLY WITH CH 33 OF THE NYC BC. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION |
| 30 Dec 2020 | NB | ISSUED | — |
| 19 Oct 2020 | A2 | ISSUED | — |
| 14 Oct 2020 | Mechanical Systems | Signed-off | Installation of equipment and ducts as shown on plans |
| 14 Oct 2020 | Sprinklers | Signed-off | Relocation, removal and installation of new sprinkler heads and relocation of piping |
| 14 Oct 2020 | Plumbing | Signed-off | Modification of plumbing system as shown on plans |
| 16 Dec 2019 | A2 | ISSUED | — |
| 16 Dec 2019 | A2 | ISSUED | — |
| 1 Nov 2019 | A2 | ISSUED | — |
| 12 Jul 2019 | A3 | ISSUED | — |
| 10 Jun 2019 | A3 | ISSUED | — |
| 21 May 2019 | Supported Scaffold | Signed-off | INSTALLATION OF PIPE SCAFFOLD AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY |
| 29 Apr 2019 | A3 | ISSUED | — |
| 14 Dec 2018 | A2 | ISSUED | — |
| 29 Oct 2018 | A3 | ISSUED | — |
| 24 Jul 2018 | A3 | ISSUED | — |
| 20 Jul 2018 | Supported Scaffold | Signed-off | INSTALLATION OF SCAFFOLD AS PER DRAWINGS. SCAFFOLD SHALL COMPLY WITH CHAPTER #33 OF THE NYC BUILDING CODE. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS APPLICATION |
| 28 Jun 2018 | A2 | ISSUED | — |
| 1 Jun 2018 | A3 | ISSUED | — |
| 16 May 2018 | A2 | ISSUED | — |
| 26 Apr 2018 | Sidewalk Shed | Signed-off | SIDEWALK SHED PROPOSED INSTALLATION OF SIDEWALK SHED AS PER PLAN NO CHANGE IN USE, OCCUPANCY OF EGRESS UNDER THIS APPLICATION |
| 10 Apr 2018 | A3 | ISSUED | — |
| 19 Mar 2018 | A3 | ISSUED | — |
| 19 Mar 2018 | A3 | ISSUED | — |
| 14 May 2015 | A3 | ISSUED | — |
Recorded documents
Deeds, mortgages and related instruments recorded against the lot. A recorded amount is not necessarily a market price.
| Recorded | Type | Amount | From | To |
|---|---|---|---|---|
| 29 Jun 2026 | ZONE | — | — | — |
| 27 Aug 2025 | DEVR | — | — | — |
| 27 Aug 2025 | ZONE | — | — | — |
| 31 Oct 2023 | Transfer tax return | $370,125,558 | — | — |
| 15 Aug 2023 | CERT | — | — | — |
| 11 Aug 2023 | DECL | — | — | — |
| 11 Aug 2023 | DECL | — | — | — |
| 11 Aug 2023 | DECL | — | — | — |
| 11 Aug 2023 | DECL | — | — | — |
| 23 Aug 2022 | SMIS | — | — | — |
| 3 Jun 2022 | SAGE | — | — | — |
| 7 Apr 2022 | Assignment | — | — | — |
| 7 Apr 2022 | Assignment | — | — | — |
| 30 Mar 2022 | ZONE | — | — | — |
| 18 Jan 2022 | Mortgage | $75,200,000 | — | — |
| 18 Jan 2022 | Assignment | — | — | — |
| 18 Jan 2022 | Assignment | — | — | — |
| 18 Jan 2022 | Assignment | — | — | — |
| 18 Jan 2022 | Agreement | $292,500,000 | — | — |
| 18 Jan 2022 | TL&R | — | — | — |
| 18 Jan 2022 | TL&R | — | — | — |
| 18 Jan 2022 | TL&R | — | — | — |
| 9 Dec 2021 | CERT | — | — | — |
| 9 Dec 2021 | SAGE | — | — | — |
| 29 Nov 2021 | DECL | — | — | — |
| 19 Jul 2021 | SMIS | — | — | — |
| 19 Jul 2021 | SMIS | — | — | — |
| 19 Jul 2021 | SMIS | — | — | — |
| 19 Jul 2021 | SMIS | — | — | — |
| 19 Jul 2021 | DEVR | — | — | — |
| 19 Jul 2021 | SMIS | — | — | — |
| 19 Jul 2021 | SMIS | — | — | — |
| 19 Jul 2021 | CERT | — | — | — |
| 22 Dec 2020 | EASE | — | — | — |
| 22 Dec 2020 | Agreement | — | — | — |
| 20 Jul 2020 | EASE | — | — | — |
| 19 Sep 2019 | DEVR | $4,706,130 | — | — |
| 19 Sep 2019 | DEVR | $7,918,185 | — | — |
| 4 Jun 2019 | CERT | — | — | — |
| 4 Jun 2019 | ZONE | — | — | — |
| 31 Dec 2018 | AL&R | $45,277,944 | — | — |
| 31 Dec 2018 | AL&R | $129,908,267 | — | — |
| 31 Dec 2018 | AL&R | $42,113,789 | — | — |
| 31 Dec 2018 | Agreement | $42,113,789 | — | — |
| 31 Dec 2018 | Assignment | — | — | — |
| 31 Dec 2018 | Mortgage | $45,277,944 | — | — |
| 31 Dec 2018 | Mortgage | $129,908,267 | — | — |
| 13 Aug 2018 | EASE | — | — | — |
| 5 Jun 2018 | SMIS | — | — | — |
| 5 Jun 2018 | EASE | — | — | — |
Showing the 50 most recent of 88. The full set is available in the interactive report.
About this page
Compiled from New York City public records — data retrieved 5 days ago. Coverage on this parcel: 15 of 15 record groups populated. The derived figures — unused floor-area ratio, buildable area, the assessed-value trend and the per-unit ratios — are calculated by us and appear in no public dataset; the formulas are in the methodology.
This is a research tool, not advice. It is not a title search, a lien search, a survey or an inspection, and it does not replace any of them. If a figure here matters to a decision, verify it at the source. See Terms.