Avalon at Mission Bay I (Building T1)
Multifamily in San Francisco, CA · 255 King St · 94107
At a glance
Avalon at Mission Bay I (Building T1) is a 183,901-square-foot multifamily building at 255 King St in San Francisco, California. It is listed in the 2025 Existing Buildings Energy Performance Ordinance disclosure without energy figures: no ENERGY STAR score, energy use or emissions were published for it that year. Its most recent reported figures are from 2024, when it scored 100 out of 100 on ENERGY STAR with a site EUI of 13.8 kBtu/ft².
No energy data reported for 2025
Avalon at Mission Bay I (Building T1) appears in the 2025 Existing Buildings Energy Performance Ordinance disclosure, but no ENERGY STAR score, energy use or emissions were published for it — the building did not report benchmarking data for that year. Earlier reported years are in the table below.
Floor area on file: 183,901 sq ft
Source record sf:8706/012-B:2025
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | — | — | |
| 2024 | 100 | ±0 | 13.8 kBtu/ft² | 169 tCO₂e |
| 2023 | 100 | ±0 | 15.0 kBtu/ft² | 196 tCO₂e |
| 2022 | 100 | 15.1 kBtu/ft² | 190 tCO₂e | |
| 2021 | — | 15.4 kBtu/ft² | 171 tCO₂e | |
| 2020 | — | 14.9 kBtu/ft² | 166 tCO₂e |
Compliance context
SF Environment Code Chapter 20
San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
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
- 255 King St
- City
- San Francisco
- State
- California
- ZIP
- 94107
- Coordinates
- 37.77647, -122.39302
Within ~1 km
Nearby benchmarked buildings
- At&T Parkscore —
Stadium (Open) · 1,230,000 sq ft
- China Basinscore —
Commercial · 1,218,533 sq ft
- 238 KING STscore —
Mixed Residential · 1,212,969 sq ft
- China Basinscore —
Office · 1,032,795 sq ft
- Mb Rock Hall & North Campusscore —
College/University · 804,325 sq ft
- Bayside Villagescore 100
Multifamily Housing · 760,332 sq ft
See also: most efficient in San Francisco · biggest emitters
How has Avalon at Mission Bay I (Building T1)'s energy performance changed over time?
BuildingCensus holds 6 San Francisco disclosures for Avalon at Mission Bay I (Building T1), covering report years 2020–2025. Its ENERGY STAR score was 100 in both 2022 and 2024. Site EUI moved from 14.9 kBtu/ft² (2020) to 13.8 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 166 tCO₂e to 169 tCO₂e over the same span (up 2%).
Which law requires Avalon at Mission Bay I (Building T1) to report its energy use?
Avalon at Mission Bay I (Building T1) reports under SF Environment Code Chapter 20, the legal basis of San Francisco's Existing Buildings Energy Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record sf:8706/012-B:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.
More multifamily buildings in San Francisco
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- Multifamily buildings in San Francisco· 192 benchmarked
- All San Francisco benchmarked buildings· SF Environment Code Chapter 20
- Most efficient large buildings in San Francisco
- Least efficient large buildings in San Francisco
- Biggest emitters in San Francisco
Frequently asked questions
What is Avalon at Mission Bay I (Building T1)'s energy grade?
Avalon at Mission Bay I (Building T1) has no grade: it did not report energy data for 2025. The 2025 Existing Buildings Energy Performance Ordinance disclosure lists the building but publishes no ENERGY STAR score, energy use or emissions for it.
Where is Avalon at Mission Bay I (Building T1)?
Avalon at Mission Bay I (Building T1) is at 255 King St, in San Francisco, California 94107. Its coordinates are 37.77647, -122.39302 (latitude, longitude), as published in the Existing Buildings Energy Performance Ordinance file.
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About this data
Source: Existing Buildings Energy Performance Ordinance (SF Environment Code Chapter 20), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Avalon at Mission Bay I (Building T1), San Francisco, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/san-francisco/avalon-at-mission-bay-i-building-t1-ba1f7c9d (data as of October 2, 2026).