At a glance
780 Montague Expy is a 95,317-square-foot office building in San José, California, built in 1982. In its 2024 San José benchmarking disclosure it reported a site energy-use intensity of 33.0 kBtu/ft² and 194 tCO₂e of greenhouse-gas emissions.
San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 33.0 kBtu/ft² |
| Source EUI | 72.5 kBtu/ft² |
| GHG emissions | 194 tCO₂e |
| GHG intensity | — |
| Electricity | 604,073 kWh |
| Natural gas | 10,821 therms |
| Water use | 1,662 kgal |
| Gross floor area | 95,317 sq ft |
| Source record | san_jose:0557-0-00:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 33.0 kBtu/ft² | 194 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | — | — | — | |
| 2021 | — | — | — | |
| 2020 | — | — | — | |
| 2019 | — | — | — | |
| 2018 | — | — | — |
Compliance context
San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance)
San José's BPO requires buildings over 20,000 sq ft to benchmark annually and complete beyond-benchmarking performance improvements on a rolling schedule.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 780 Montague Expy
- City
- San José
- State
- California
- ZIP
- 95131
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in San José · biggest emitters
How does 780 Montague Expy compare with other office buildings in San José?
The latest disclosures cover 408 office buildings in San José, out of 1,790 buildings citywide. Its site EUI of 33.0 kBtu/ft² is about half of the average of 64.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 95,317 sq ft, it is roughly in line with the average floor area of 95,555 sq ft for those buildings. It was built in 1982, 4 years earlier than the group's average year built (1986). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 780 Montague Expy's energy performance changed over time?
BuildingCensus holds 7 San José disclosures for 780 Montague Expy, covering report years 2018–2024. Only one of those years carries energy figures.
What does a site EUI of 33.0 kBtu/ft² mean?
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. 780 Montague Expy's 33.0 kBtu/ft² across 95,317 sq ft works out to about 3.1 billion Btu (922 MWh-equivalent) in 2024. Its source EUI of 72.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 604,073 kWh of electricity, 10,821 therms of natural gas and 1,662 thousand gallons of water for the year.
Which law requires 780 Montague Expy to report its energy use?
780 Montague Expy reports under San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance), the legal basis of San José's Energy and Water Building Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record san_jose:0557-0-00:2024). San José's BPO requires buildings over 20,000 sq ft to benchmark annually and complete beyond-benchmarking performance improvements on a rolling schedule.
More office buildings in San José
- 210 W Tasman Dr· 95,113 sq ft · score 90 (A)
- 55 W Trimble· 94,515 sq ft · score 90 (A)
- 3103 N 1St St· 94,328 sq ft · score 1 (D)
- 3101 N 1St St· 94,328 sq ft · EUI 139.7 kBtu/ft²
- 250 W Tasman Dr· 93,959 sq ft · EUI 17.7 kBtu/ft²
- 5799 Fontanoso Way· 93,650 sq ft · score 100 (A)
- Office buildings in San José· 408 benchmarked
- All San José benchmarked buildings· San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance)
- Most efficient large buildings in San José
- Least efficient large buildings in San José
- Biggest emitters in San José
Frequently asked questions
What is 780 Montague Expy's energy grade?
780 Montague Expy did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 33.0 kBtu/ft².
How much energy does 780 Montague Expy use?
Its 2024 site energy-use intensity was 33.0 kBtu/ft² (72.5 kBtu/ft² source) across 95,317 sq ft, including 604,073 kWh of electricity and 10,821 therms of natural gas.
What are 780 Montague Expy's carbon emissions?
780 Montague Expy reported 194 tCO₂e of greenhouse-gas emissions for 2024.
Where is 780 Montague Expy?
780 Montague Expy is in San José, California 95131.
How big is 780 Montague Expy and when was it built?
780 Montague Expy has 95,317 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1982 as its year built. It is classed as office.
Is 780 Montague Expy covered by San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance)?
Yes — it appears in the 2024 Energy and Water Building Performance Ordinance disclosure, which lists the buildings reporting under San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance).
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About this data
Source: Energy and Water Building Performance Ordinance (San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “780 Montague Expy, San José, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/san-jose/780-montague-expy-70248970 (data as of July 9, 2026).