Ambassador 2 Condo
Multifamily Housing in Seattle, WA · 506 E HOWELL ST · 98122
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 99 (band A) |
| Site EUI | 35.0 kBtu/ft² |
| Source EUI | 84.4 kBtu/ft² |
| GHG emissions | 24 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 357,111 kWh |
| Natural gas | 3,448 therms |
| Gross floor area | 44,715 sq ft |
| Source record | seattle:19790:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 99 | -1 | 35.0 kBtu/ft² | 24 tCO₂e |
| 2024 | 100 | +2 | 33.6 kBtu/ft² | 22 tCO₂e |
| 2023 | 98 | 36.8 kBtu/ft² | 24 tCO₂e | |
| 2022 | — | — | 8 tCO₂e | |
| 2021 | — | — | — | |
| 2020 | 85 | -1 | 40.1 kBtu/ft² | 30 tCO₂e |
| 2019 | 86 | +3 | 41.6 kBtu/ft² | 35 tCO₂e |
| 2018 | 83 | ±0 | 42.8 kBtu/ft² | 36 tCO₂e |
| 2017 | 83 | +4 | 42.3 kBtu/ft² | 34 tCO₂e |
| 2016 | 79 | +3 | 40.5 kBtu/ft² | 31 tCO₂e |
| 2015 | 76 | 41.5 kBtu/ft² | 32 tCO₂e |
Compliance context
Seattle Energy Benchmarking Ordinance (SMC 22.920)
Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 506 E HOWELL ST
- City
- Seattle
- State
- Washington
- ZIP
- 98122
- Coordinates
- 47.61803, -122.32482
Within ~1 km
Nearby benchmarked buildings
College/University · 2,099,379 sq ft
- Seattle Convention Centerscore —
Convention Center · 1,842,925 sq ft
- Two Union Squarescore 96
Office · 1,605,578 sq ft
- Horizon Housescore 92
Senior Living Community · 756,740 sq ft
- The Danforthscore 100
Multifamily Housing · 592,484 sq ft
- One Convention Placescore 84
Office · 538,933 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Ambassador 2 Condo's energy grade?
Ambassador 2 Condo scores 99 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Ambassador 2 Condo use?
Its 2025 site energy-use intensity was 35.0 kBtu/ft² (84.4 kBtu/ft² source) across 44,715 sq ft, including 357,111 kWh of electricity and 3,448 therms of natural gas.
What are Ambassador 2 Condo's carbon emissions?
Ambassador 2 Condo reported 24 tCO₂e of greenhouse-gas emissions (0.6 kgCO₂e/ft²) for 2025. Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.
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Dataset updated . Source: Building Energy Benchmarking disclosure, record seattle:19790:2025.