Carlton Apt
Multifamily Housing in Seattle, WA · 603 PONTIUS AVE N · 98109
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 80 (band B) |
| Site EUI | 32.8 kBtu/ft² |
| Source EUI | 77.6 kBtu/ft² |
| GHG emissions | 13 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 172,360 kWh |
| Natural gas | 1,931 therms |
| Gross floor area | 23,837 sq ft |
| Source record | seattle:21732:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 80 | -4 | 32.8 kBtu/ft² | 13 tCO₂e |
| 2024 | 84 | +4 | 31.8 kBtu/ft² | 14 tCO₂e |
| 2023 | 80 | +14 | 33.4 kBtu/ft² | 15 tCO₂e |
| 2022 | 66 | -16 | 39.3 kBtu/ft² | 18 tCO₂e |
| 2021 | 82 | +5 | 33.3 kBtu/ft² | 15 tCO₂e |
| 2020 | 77 | +1 | 34.2 kBtu/ft² | 16 tCO₂e |
| 2019 | 76 | -2 | 35.7 kBtu/ft² | 18 tCO₂e |
| 2018 | 78 | -3 | 35.0 kBtu/ft² | 18 tCO₂e |
| 2017 | 81 | -1 | 36.1 kBtu/ft² | 19 tCO₂e |
| 2016 | 82 | +3 | 31.8 kBtu/ft² | 16 tCO₂e |
| 2015 | 79 | 32.5 kBtu/ft² | 16 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
- 603 PONTIUS AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62442, -122.33209
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Carlton Apt's energy grade?
Carlton Apt scores 80 out of 100 on ENERGY STAR — band B (Above median (70–84)) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Carlton Apt use?
Its 2025 site energy-use intensity was 32.8 kBtu/ft² (77.6 kBtu/ft² source) across 23,837 sq ft, including 172,360 kWh of electricity and 1,931 therms of natural gas.
What are Carlton Apt's carbon emissions?
Carlton Apt reported 13 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:21732:2025.