BuildingCensus
B

2601 MASON ST

Commercial in San Francisco, CA · 94133

ENERGY STAR score
77
band B · 2025
Site EUI
94.5
kBtu/ft²
GHG emissions
79
tCO₂e
GHG intensity
5.1
kgCO₂e/ft²
Floor area
25,562
sq ft
Year built
1959
vintage
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85–10070–8455–691–54
This entry + 6 nearby

SF Environment Code Chapter 20 · reporting year 2025

Benchmarking record

FieldValue
ENERGY STAR score77 (band B)
Site EUI94.5 kBtu/ft²
Source EUI134.5 kBtu/ft²
GHG emissions79 tCO₂e
GHG intensity5.1 kgCO₂e/ft²
Electricity92,018 kWh
Natural gas11,562 therms
Gross floor area25,562 sq ft
Source recordsf:0013/009:2025

The disclosure history

Year over year

YearScoreΔSite EUIGHG emissions
2025latest77+1194.5 kBtu/ft²79 tCO₂e
202466+14101.9 kBtu/ft²89 tCO₂e
202352-13119.2 kBtu/ft²106 tCO₂e
202265106.6 kBtu/ft²94 tCO₂e
2021———
2020—55.6 kBtu/ft²80 tCO₂e
201962+577.8 kBtu/ft²113 tCO₂e
201857+17112.6 kBtu/ft²101 tCO₂e
201740-15124.8 kBtu/ft²112 tCO₂e
201655-2124.2 kBtu/ft²114 tCO₂e
201557120.4 kBtu/ft²111 tCO₂e
2014———
2013———
2012———
2011———

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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
2601 MASON ST
State
California
ZIP
94133
Coordinates
37.80774, -122.41435

Within ~1 km

Nearby benchmarked buildings

See also: most efficient in San Francisco · biggest emitters

Frequently asked questions

What is 2601 MASON ST's energy grade?

2601 MASON ST scores 77 out of 100 on ENERGY STAR — band B (Above median (70–84)) — in its 2025 San Francisco disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does 2601 MASON ST use?

Its 2025 site energy-use intensity was 94.5 kBtu/ft² (134.5 kBtu/ft² source) across 25,562 sq ft, including 92,018 kWh of electricity and 11,562 therms of natural gas.

What are 2601 MASON ST's carbon emissions?

2601 MASON ST reported 79 tCO₂e of greenhouse-gas emissions (5.1 kgCO₂e/ft²) for 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.

Working with San Francisco building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.

Dataset updated . Source: Existing Buildings Energy Performance Ordinance disclosure, record sf:0013/009:2025.