1001 Page Mill Rd Bldg One
Office in California, CA · 1001 Page Mill Road, Palo Alto · 94304
At a glance
1001 Page Mill Rd Bldg One is a 76,197-square-foot office building at 1001 Page Mill Road, Palo Alto in Palo Alto, California, built in 1989. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 44 out of 100 (grade D), a site energy-use intensity of 86.6 kBtu/ft² and 373 tCO₂e of greenhouse-gas emissions. That score is higher than 13% of the 4,912 scored office buildings in California.
AB 802 (Public Resources Code §25402.10) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 44 (band D) |
| Site EUI | 86.6 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 373 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 674,029 kWh |
| Natural gas | 41,551 therms |
| Gross floor area | 76,197 sq ft |
| Source record | california:12867473:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 44 | -1 | 86.6 kBtu/ft² | 373 tCO₂e |
| 2023 | 45 | +10 | 92.8 kBtu/ft² | 410 tCO₂e |
| 2022 | 35 | -39 | 106.0 kBtu/ft² | 465 tCO₂e |
| 2021 | 74 | +5 | 54.3 kBtu/ft² | 240 tCO₂e |
| 2020 | 69 | +22 | 61.9 kBtu/ft² | 274 tCO₂e |
| 2019 | 47 | 91.9 kBtu/ft² | 400 tCO₂e |
Compliance context
AB 802 (Public Resources Code §25402.10)
AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
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
- 1001 Page Mill Road, Palo Alto
- City
- California
- State
- California
- ZIP
- 94304
- Coordinates
- 37.41823, -122.14542
Within ~1 km
Nearby benchmarked buildings
Office · 743,654 sq ft
Office · 315,043 sq ft
- Steep Slope Property, Llcscore 95
Office · 301,098 sq ft
- 1050 Page Mill Road Property Llcscore 39
Office · 301,098 sq ft
- Y-395 Page Millscore 64
Office · 224,852 sq ft
- 650 Page Mill Rd.score 90
Office · 184,142 sq ft
See also: most efficient in California · biggest emitters
How does 1001 Page Mill Rd Bldg One compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. 1001 Page Mill Rd Bldg One's ENERGY STAR score of 44 compares with an average of 75 across the 4,912 that report a score; it scores higher than 13% of them and lower than 86%. Its site EUI of 86.6 kBtu/ft² is about 54% above the average of 56.4 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.9 kgCO₂e/ft² is about 36% above the group average of 3.6 kgCO₂e/ft².
At 76,197 sq ft, it is about half of the average floor area of 151,937 sq ft for those buildings. It was built in 1989, 4 years later than the group's average year built (1985). 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 1001 Page Mill Rd Bldg One's energy performance changed over time?
BuildingCensus holds 6 California disclosures for 1001 Page Mill Rd Bldg One, covering report years 2019–2024. Its ENERGY STAR score went from 47 in 2019 to 44 in 2024 (-3 points); its best year on file was 2021, at 74. Site EUI moved from 91.9 kBtu/ft² (2019) to 86.6 kBtu/ft² (2024), a 6% decrease. Reported emissions went from 400 tCO₂e to 373 tCO₂e over the same span (down 7%).
What does an ENERGY STAR score of 44 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 44 means the building performs better than about 44% of its national peers. BuildingCensus bands the score into report-card grades; 44 falls in band D — lowest band (1–54). It sits 31 points below 75, the threshold for ENERGY STAR certification. In California, 65% 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. 1001 Page Mill Rd Bldg One's 86.6 kBtu/ft² across 76,197 sq ft works out to about 6.6 billion Btu (1,934 MWh-equivalent) in 2024. The disclosure also reports 674,029 kWh of electricity and 41,551 therms of natural gas for the year.
Which law requires 1001 Page Mill Rd Bldg One to report its energy use?
1001 Page Mill Rd Bldg One reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record california:12867473:2024). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.
More office buildings in California
- Penn Station Studios - 1630 Stewart Street· 76,169 sq ft · score 73 (B)
- Penn Station (Bp)· 76,169 sq ft · score 88 (A)
- Rio Robles Tech Park - 3545· 76,145 sq ft · score 1 (D)
- 3800 Concours· 76,118 sq ft · score 65 (C)
- 599 N Mathilda· 76,031 sq ft · EUI 14.1 kBtu/ft²
- 9245 Laguna Springs Dr.· 76,000 sq ft · score 86 (A)
- Office buildings in California· 6,214 benchmarked
- All California benchmarked buildings· AB 802 (Public Resources Code §25402.10)
- Most efficient large buildings in California
- Least efficient large buildings in California
- Biggest emitters in California
Frequently asked questions
What is 1001 Page Mill Rd Bldg One's energy grade?
1001 Page Mill Rd Bldg One scores 44 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 California disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1001 Page Mill Rd Bldg One use?
Its 2024 site energy-use intensity was 86.6 kBtu/ft² across 76,197 sq ft, including 674,029 kWh of electricity and 41,551 therms of natural gas.
What are 1001 Page Mill Rd Bldg One's carbon emissions?
1001 Page Mill Rd Bldg One reported 373 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2024.
Where is 1001 Page Mill Rd Bldg One?
1001 Page Mill Rd Bldg One is at 1001 Page Mill Road, Palo Alto, in Palo Alto, California 94304. Its coordinates are 37.41823, -122.14542 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is 1001 Page Mill Rd Bldg One and when was it built?
1001 Page Mill Rd Bldg One has 76,197 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1989 as its year built. It is classed as office.
Is 1001 Page Mill Rd Bldg One covered by AB 802 (Public Resources Code §25402.10)?
Yes — it appears in the 2024 Building Energy Benchmarking Program (statewide) disclosure, which lists the buildings reporting under AB 802 (Public Resources Code §25402.10).
Working with California 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.
About this data
Source: Building Energy Benchmarking Program (statewide) (AB 802 (Public Resources Code §25402.10)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “1001 Page Mill Rd Bldg One, Palo Alto, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/1001-page-mill-rd-bldg-one-842b516a (data as of July 9, 2026).