Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 77 (band B) |
| Site EUI | 54.1 kBtu/ft² |
| Source EUI | 128.4 kBtu/ft² |
| GHG emissions | 647 tCO₂e |
| GHG intensity | 1.0 kgCO₂e/ft² |
| Electricity | 8,016,521 kWh |
| Natural gas | 82,884 therms |
| Gross floor area | 755,000 sq ft |
| Source record | seattle:415:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | +9 | 54.1 kBtu/ft² | 647 tCO₂e |
| 2023 | 68 | -1 | 60.7 kBtu/ft² | 623 tCO₂e |
| 2022 | 69 | ±0 | 62.3 kBtu/ft² | 682 tCO₂e |
| 2021 | 69 | -5 | 59.4 kBtu/ft² | 560 tCO₂e |
| 2020 | 74 | +5 | 56.8 kBtu/ft² | 497 tCO₂e |
| 2019 | 69 | +4 | 73.0 kBtu/ft² | 734 tCO₂e |
| 2018 | 65 | +9 | 77.0 kBtu/ft² | 729 tCO₂e |
| 2017 | 56 | -16 | 80.3 kBtu/ft² | 720 tCO₂e |
| 2016 | 72 | +5 | 78.1 kBtu/ft² | 744 tCO₂e |
| 2015 | 67 | 88.4 kBtu/ft² | 1,192 tCO₂e |
Compliance context
Seattle Energy Benchmarking Ordinance (SMC 22.920)
Seattle's Building Emissions Performance Standard (2023) sets declining carbon targets for buildings over 20,000 sq ft, with penalties for non-compliance beginning in the 2030s.
Ownership
No owner listed in the disclosure.
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Location
- Address
- 1501 4TH AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.61022, -122.33745
Within ~1 km
Nearby benchmarked buildings
- COLUMBIA CENTERscore 90
Office · 1,952,220 sq ft
- SEATTLE CONVENTION CENTERscore —
Convention Center · 1,842,925 sq ft
- TWO UNION SQUAREscore 96
Office · 1,605,578 sq ft
Office · 1,599,394 sq ft
- DAY 1 TOWER AND SPHERES (Amazon)score 93
Office · 1,599,230 sq ft
- RUSSELL INVESTMENTS CENTERscore 94
Office · 1,592,914 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is CENTURY SQUARE's energy grade?
CENTURY SQUARE scores 77 out of 100 on ENERGY STAR — band B (Above median (70–84)) — in its 2024 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does CENTURY SQUARE use?
Its 2024 site energy-use intensity was 54.1 kBtu/ft² (128.4 kBtu/ft² source) across 755,000 sq ft, including 8,016,521 kWh of electricity and 82,884 therms of natural gas.
What are CENTURY SQUARE's carbon emissions?
CENTURY SQUARE reported 647 tCO₂e of greenhouse-gas emissions (1.0 kgCO₂e/ft²) for 2024. Seattle's Building Emissions Performance Standard (2023) sets declining carbon targets for buildings over 20,000 sq ft, with penalties for non-compliance beginning in the 2030s.
Dataset updated . Source: Building Energy Benchmarking disclosure, record seattle:415:2024.