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LL97 Covered Buildings List (CBL PDF) has not refreshed within its expected window. Showing data landed 2026-07-14 16:03 UTC (1 month ago), 26,974 rows. Open methodology
BBL 1010800028 · BIN 1070111 · Manhattan · Block 01080, Lot 0028
501 WEST 51ST STREET
Article 321Pathway source: CBL PDF row ·
CP3_article_321_one_timeCBL revision date 2026-06-16Open CBL source PDFBuildings on lot 3
Article 321 · prescriptive compliance pathway
This building is on the Article 321 pathway. Article 321 does not use a numerical cap; compliance is demonstrated via the prescriptive measures package (per methodology · Article 321), which DOB does not currently publish per building. Cap, delta, and penalty columns are intentionally suppressed on Article 321 rows in this product.
2024-29
Occupancy: R-2
GFA: 29,497 sqft
Methodology: v1.0
2030-34
Occupancy: R-2
GFA: 29,497 sqft
Methodology: v1.0
LL84 GHG emissions history
Actual tCO2e reported to LL84 by report year. Each bar links to the raw LL84 row identifier under the chart for auditability.
| Year | Property type | GHG | Property GFA | Site EUI | Source EUI | ES score | Source |
|---|---|---|---|---|---|---|---|
| 2024 | Multifamily Housing | - | 29,497 sqft | - | - | - | 5zyy-y8am / 57096092 |
Enforcement events (all DOB + ECB + OATH data cross-linked to this BBL)
Open on enforcement page →0 LL97-specific events · 12 building-scoped context events.
DOB violation filed0 LL97 · 3 scoped
ECB summons issued0 LL97 · 6 scoped
Safety context record0 LL97 · 3 scoped
| Stage | Event date | Violation | Severity | Status | Penalty | Source |
|---|---|---|---|---|---|---|
| ECB summons issuedbuilding-scoped | 2026-04-20 | Local Law 28-302.5 FAILURE TO FILE AN AMENDED REPORT ACCEPTABLE TO THIS DEPARTMENT INDICA ECB #37036540X | CLASS - 2 | ACTIVE | $3,125 | 6bgk-3dad |
| Safety context recordbuilding-scoped | 2026-03-17 | FTC-AEU-HAZ | - | Active | - | 855j-jady |
| DOB violation filedbuilding-scoped | 2026-02-12 | C-CONSTRUCTION OTHER OPTIONAL FAILURE TO MAINTAIN BLDG IN A CODE COMPLIANT MANNER. OBSERVED @ THE TIME OF INSPECTION, MULTIPLE DEFECTED CONDITIONS AT EXPOSURE 1 & EXPOS -URE 4. CRACKS/STEPS CRACKS; MISSING DECORATIVE STONES; DEFECTED WINDOW LINTELS; CRACKS WINDOW SILLS AND SPALLING. REMEDY: REPAIR AND OR REPLACE | - | V-DOB VIOLATION - ACTIVE | - | 3h2n-5cm9 |
| DOB violation filedbuilding-scoped | 2026-02-12 | C-CONSTRUCTION OTHER OPTIONAL FAILURE TO MAINTAIN BUILDING IN A CODE COMPLIANT MANNER. OBSERVED AT THE TIME OF INSPECTION DEFECTIVE CONDIDTIONS AT EXPOSURE 1. SPALLING AT ROOF CORNICE AND HAIRLINE CRACKS. REMEDY: REPAIR AND OR REPLACE | - | V-DOB VIOLATION - ACTIVE | - | 3h2n-5cm9 |
| Safety context recordbuilding-scoped | 2025-10-10 | FTC-VT-CAT1-CO Violation Issued-Failure To File 2024 Cat1 Test Affirmation of Correction | - | Active | - | 855j-jady |
| Safety context recordbuilding-scoped | 2025-10-10 | FTC-VT-PER-CO Violation Issued-Failure To File 2024 Periodic Inspection Affirmation of Correction | - | Active | - | 855j-jady |
| DOB violation filedbuilding-scoped | 2025-08-15 | C-CONSTRUCTION OTHER OPTIONAL FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MANNER.OBSERVED MULTIPL E DEFECTED CONDITIONS AT EXP1 AND EXP4.CRACKS/STEP CRACKS,MISSING DECO RATIVE STONES,DEFLATED WINDOW LINTELS,CRACK WINDOW SILLS AND SPALLING REMEDY:MAINTAIN BUILDING REPAIR AND/OR REPLACE | - | V-DOB VIOLATION - ACTIVE | - | 3h2n-5cm9 |
| ECB summons issuedbuilding-scoped | 2025-08-13 | Elevators 28-301.1 FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MANNER: SERVICE EQUIPME ECB #39156907M | CLASS - 1 | RESOLVE | $1,250 | 6bgk-3dad |
| ECB summons issuedbuilding-scoped | 2025-06-05 | Elevators 28-301.1 FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MANNER: SERVICE EQUIPME ECB #39150122P | CLASS - 1 | ACTIVE | $12,500 | 6bgk-3dad |
| ECB summons issuedbuilding-scoped | 2025-03-31 | Elevators 28-301.1 FAILURE TO MAINTAIN BUILDING IN CODE-COMPLAINT MANNER:SERVICE EQUIPMEN ECB #39143250Y | CLASS - 2 | ACTIVE | $3,125 | 6bgk-3dad |
| ECB summons issuedbuilding-scoped | 2024-11-06 | Elevators 28-301.1 FAILURE TO MAINTAIN BUILDING IN CODE COMPLIANT MANNER: SERVICE EQUIPME ECB #39129505X | CLASS - 1 | ACTIVE | $6,250 | 6bgk-3dad |
| ECB summons issuedbuilding-scoped | 2024-01-16 | Local Law 28-302.5 FAILURE TO FILE AN AMENDED REPORT ACCEPTABLE TO THIS DEPARTMENT INDICA ECB #37026518K | CLASS - 2 | ACTIVE | $6,250 | 6bgk-3dad |
Records are the union of DOB Violations (3h2n-5cm9), ECB (6bgk-3dad), Safety Violations (855j-jady), OATH Hearings (jz4z-kudi), and OATH Trials (y3hw-z6bm) that we could link back to this BBL via BIN or address parsing. Events not tagged LL97-specific are shown as building-scoped context. See methodology · enforcement linking.
Data quality flags
- default_value_reportedSee methodology for the exact definition of this flag; behavior may vary by pathway or period.
Full flag catalog: methodology · data quality flags
Fields we cannot show here (internal DOB data not yet public)
Processing lifecycleDOB's internal BEAM system tracks per-building compliance stages, RCE / decarbonization plans, and mitigation credits. Those fields are not yet published as an open dataset. When DOB releases them, this product will show them here without a schema migration. Until then, the following are known gaps for this building:
- Simulated · internal DOB data not yet publicAssessed penalty (vs theoretical)Actual penalty DOB assessed against a building, distinct from the theoretical over-cap exposure computed from LL84 emissions.Best-effort shadow field:
ecb_summons_issuedPublic release status: announced_not_yet_released - Simulated · internal DOB data not yet publicAudit assignmentBuildings selected by DOB for LL97 filing audit and the audit stage.Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicAudit outcomeResult of an LL97 audit (accepted / correction ordered / penalty referred).Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicExtension flagWhether a per-building filing was accepted under a filing extension (June 30 grace or BEAM extension to August 29).Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicFiling received dateTimestamp DOB received a per-building LL97 compliance filing.Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicGood-faith effort applicationWhether an owner has applied for a good-faith effort determination and its status.Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicMediated resolution applicationApplication for the LL97 mediated resolution process and its outcome.Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicNotice of deficiency statusWhether a notice of deficiency has been issued for a building and its current stage.Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicPer-building filing statusFiling status for each covered BBL/BIN combination (filed / late / non-filed / exempt) as tracked in DOB's BEAM system.Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicPre-OATH correspondenceDOB correspondence with owners before an OATH matter is opened (notice of deficiency, cure letters).Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicRDP attestationRegistered Design Professional attestation attached to each per-building compliance filing.Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet publicRECs / offsets claimedRenewable Energy Credits and beneficial-use offsets claimed to reduce reported emissions.Public release status: announced_not_yet_released
- Simulated · internal DOB data not yet public60-day cure windowThe 60-day cure window state for a building under LL97 enforcement (open / cured / expired).Public release status: announced_not_yet_released