Hamilton Landing - Hangar 5
Office in California, CA · 5 Hamilton Landing, Novato · 94949
At a glance
Hamilton Landing - Hangar 5 is a 55,358-square-foot office building at 5 Hamilton Landing, Novato in Novato, California, built in 2008. In its 2024 California benchmarking disclosure it reported an ENERGY STAR score of 42 out of 100 (grade D), a site energy-use intensity of 70.5 kBtu/ft² and 230 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 | 42 (band D) |
| Site EUI | 70.5 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 230 tCO₂e |
| GHG intensity | 4.2 kgCO₂e/ft² |
| Electricity | 676,841 kWh |
| Natural gas | 14,409 therms |
| Gross floor area | 55,358 sq ft |
| Source record | california:9873271:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 42 | +22 | 70.5 kBtu/ft² | 230 tCO₂e |
| 2023 | 20 | -25 | 75.0 kBtu/ft² | 250 tCO₂e |
| 2022 | 45 | -24 | 49.1 kBtu/ft² | 172 tCO₂e |
| 2021 | 69 | — | 116 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
- 5 Hamilton Landing, Novato
- City
- California
- State
- California
- ZIP
- 94949
- Coordinates
- 38.05805, -122.51367
Within ~1 km
Nearby benchmarked buildings
- The Bluffs At Hamilton Hillscore —
Multifamily Housing · 71,702 sq ft
- Hamilton Landing - Hangar 10score 15
Office · 64,231 sq ft
- Hamilton Landing - Hangar 7score —
Office · 61,714 sq ft
- Hamilton Landing - Hangar 9score 4
Office · 58,704 sq ft
- Hamilton Landing - Hangar 4score —
Office · 56,917 sq ft
- Hamilton Landing - Hangar 6score 27
Office · 56,801 sq ft
See also: most efficient in California · biggest emitters
How does Hamilton Landing - Hangar 5 compare with other office buildings in California?
The latest disclosures cover 6,214 office buildings in California, out of 40,029 buildings citywide. Hamilton Landing - Hangar 5's ENERGY STAR score of 42 compares with an average of 75 across the 4,912 that report a score; it scores higher than 13% of them and lower than 87%. Its site EUI of 70.5 kBtu/ft² is about 25% 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 4.2 kgCO₂e/ft² is about 15% above the group average of 3.6 kgCO₂e/ft².
At 55,358 sq ft, it is about 64% below the average floor area of 151,937 sq ft for those buildings. It was built in 2008, 23 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 Hamilton Landing - Hangar 5's energy performance changed over time?
BuildingCensus holds 4 California disclosures for Hamilton Landing - Hangar 5, covering report years 2021–2024. Its ENERGY STAR score went from 69 in 2021 to 42 in 2024 (-27 points); its best year on file was 2021, at 69. Site EUI moved from 49.1 kBtu/ft² (2022) to 70.5 kBtu/ft² (2024), an 44% increase. Reported emissions went from 116 tCO₂e to 230 tCO₂e over the same span (up 99%).
What does an ENERGY STAR score of 42 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 42 means the building performs better than about 42% of its national peers. BuildingCensus bands the score into report-card grades; 42 falls in band D — lowest band (1–54). It sits 33 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. Hamilton Landing - Hangar 5's 70.5 kBtu/ft² across 55,358 sq ft works out to about 3.9 billion Btu (1,144 MWh-equivalent) in 2024. The disclosure also reports 676,841 kWh of electricity and 14,409 therms of natural gas for the year.
Which law requires Hamilton Landing - Hangar 5 to report its energy use?
Hamilton Landing - Hangar 5 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:9873271:2024). 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
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- 23272 & 23282 Mill Creek Drive - Ab802· 55,314 sq ft · score 34 (D)
- 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 Hamilton Landing - Hangar 5's energy grade?
Hamilton Landing - Hangar 5 scores 42 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 Hamilton Landing - Hangar 5 use?
Its 2024 site energy-use intensity was 70.5 kBtu/ft² across 55,358 sq ft, including 676,841 kWh of electricity and 14,409 therms of natural gas.
What are Hamilton Landing - Hangar 5's carbon emissions?
Hamilton Landing - Hangar 5 reported 230 tCO₂e of greenhouse-gas emissions (4.2 kgCO₂e/ft²) for 2024.
Where is Hamilton Landing - Hangar 5?
Hamilton Landing - Hangar 5 is at 5 Hamilton Landing, Novato, in Novato, California 94949. Its coordinates are 38.05805, -122.51367 (latitude, longitude), as published in the Building Energy Benchmarking Program (statewide) file.
How big is Hamilton Landing - Hangar 5 and when was it built?
Hamilton Landing - Hangar 5 has 55,358 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2008 as its year built. It is classed as office.
Is Hamilton Landing - Hangar 5 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).
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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, “Hamilton Landing - Hangar 5, Novato, California — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/california/hamilton-landing-hangar-5-ec5a9275 (data as of July 9, 2026).