Marriott Residence Inn Convention Center

How does Marriott Residence Inn Convention Center compare with other hotel buildings in Seattle?

The latest disclosures cover 86 hotel buildings in Seattle, out of 3,871 buildings citywide. Marriott Residence Inn Convention Center's ENERGY STAR score of 78 compares with an average of 76 across the 78 that report a score; it scores higher than 37% of them and lower than 58%. Its site EUI of 69.4 kBtu/ft² is roughly in line with the average of 68.4 kBtu/ft². Its emissions intensity of 2.0 kgCO₂e/ft² is roughly in line with the group average of 2.0 kgCO₂e/ft².

At 236,367 sq ft, it is about 42% above the average floor area of 165,912 sq ft for those buildings. It was built in 2017, 47 years later than the group's average year built (1971). Across all 24 jurisdictions BuildingCensus covers, the 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².

How has Marriott Residence Inn Convention Center's energy performance changed over time?

BuildingCensus holds 8 Seattle disclosures for Marriott Residence Inn Convention Center, covering report years 2018–2025. Its ENERGY STAR score went from 73 in 2018 to 78 in 2025 (+5 points); its best year on file was 2020, at 96. Site EUI moved from 36.8 kBtu/ft² (2018) to 69.4 kBtu/ft² (2025), an 89% increase. Reported emissions went from 37 tCO₂e to 367 tCO₂e over the same span (up 897%).

What does an ENERGY STAR score of 78 mean?

ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 78 means the building performs better than about 78% of its national peers. BuildingCensus bands the score into report-card grades; 78 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In Seattle, 69% of scored buildings are at 75 or above.

Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Marriott Residence Inn Convention Center's 69.4 kBtu/ft² across 236,367 sq ft works out to about 16.4 billion Btu (4,808 MWh-equivalent) in 2025. Its source EUI of 135.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,958,842 kWh of electricity and 62,581 therms of natural gas for the year.

Which law requires Marriott Residence Inn Convention Center to report its energy use?

Marriott Residence Inn Convention Center reports under the Seattle Energy Benchmarking Ordinance (SMC 22.920), the legal basis of Seattle's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record seattle:50333:2025). 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.