The Aquatic I
Multifamily (5+ Units) in Berkeley, CA · 2001 FIFTH ST
At a glance
The Aquatic I is a 45,168-square-foot multifamily (5+ units) building at 2001 FIFTH ST in Berkeley, California. In its 2025 Berkeley benchmarking disclosure it reported an ENERGY STAR score of 89 out of 100 (grade A) and a site energy-use intensity of 38.3 kBtu/ft². That score is higher than 17% of the 156 scored multifamily (5+ units) buildings in Berkeley.
BESO (BMC Chapter 19.81) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 89 (band A) |
| Site EUI | 38.3 kBtu/ft² |
| Source EUI | 73.5 kBtu/ft² |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 251,230 kWh |
| Natural gas | 8,742 therms |
| Gross floor area | 45,168 sq ft |
| Source record | berkeley:2760:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 89 | -5 | 38.3 kBtu/ft² | — |
| 2024 | 94 | +4 | 35.8 kBtu/ft² | — |
| 2023 | 90 | -1 | 38.3 kBtu/ft² | — |
| 2022 | 91 | 37.6 kBtu/ft² | — |
Compliance context
BESO (BMC Chapter 19.81)
Berkeley's BESO requires annual benchmarking for commercial and multifamily buildings of 15,000 sq ft or more, with energy assessments at time of listing and every five years for buildings of 25,000 sq ft or more.
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
- 2001 FIFTH ST
- City
- Berkeley
- State
- California
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Berkeley · biggest emitters
How does The Aquatic I compare with other multifamily (5+ units) buildings in Berkeley?
The latest disclosures cover 202 multifamily (5+ units) buildings in Berkeley, out of 440 buildings citywide. The Aquatic I's ENERGY STAR score of 89 compares with an average of 92 across the 156 that report a score; it scores higher than 17% of them and lower than 81%. Its site EUI of 38.3 kBtu/ft² is about 16% above the average of 32.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 45,168 sq ft, it is about 36% above the average floor area of 33,316 sq ft for those buildings.
How has The Aquatic I's energy performance changed over time?
BuildingCensus holds 4 Berkeley disclosures for The Aquatic I, covering report years 2022–2025. Its ENERGY STAR score went from 91 in 2022 to 89 in 2025 (-2 points); its best year on file was 2024, at 94. Site EUI moved from 37.6 kBtu/ft² (2022) to 38.3 kBtu/ft² (2025), an 2% increase.
What does an ENERGY STAR score of 89 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 89 means the building performs better than about 89% of its national peers. BuildingCensus bands the score into report-card grades; 89 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. In Berkeley, 82% 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. The Aquatic I's 38.3 kBtu/ft² across 45,168 sq ft works out to about 1.7 billion Btu (507 MWh-equivalent) in 2025. Its source EUI of 73.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 251,230 kWh of electricity and 8,742 therms of natural gas for the year.
Which law requires The Aquatic I to report its energy use?
The Aquatic I reports under BESO (BMC Chapter 19.81), the legal basis of Berkeley's Building Emissions Saving Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record berkeley:2760:2025). Berkeley's BESO requires annual benchmarking for commercial and multifamily buildings of 15,000 sq ft or more, with energy assessments at time of listing and every five years for buildings of 25,000 sq ft or more.
More multifamily (5+ units) buildings in Berkeley
- Evans Manor· 44,262 sq ft · EUI 32.3 kBtu/ft²
- Studio 2000· 43,567 sq ft · score 100 (A)
- Bishop Berkeley Apartments· 43,065 sq ft · score 89 (A)
- 2515 Benvenue Avenue· 43,056 sq ft · score 100 (A)
- Americana Apartments· 42,595 sq ft · score 100 (A)
- Hillegass Terrace· 41,826 sq ft · EUI 33.8 kBtu/ft²
- Multifamily (5+ Units) buildings in Berkeley· 202 benchmarked
- All Berkeley benchmarked buildings· BESO (BMC Chapter 19.81)
- Most efficient large buildings in Berkeley
- Least efficient large buildings in Berkeley
- Biggest emitters in Berkeley
Frequently asked questions
What is The Aquatic I's energy grade?
The Aquatic I scores 89 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2025 Berkeley disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Aquatic I use?
Its 2025 site energy-use intensity was 38.3 kBtu/ft² (73.5 kBtu/ft² source) across 45,168 sq ft, including 251,230 kWh of electricity and 8,742 therms of natural gas.
What are The Aquatic I's carbon emissions?
No greenhouse-gas emissions figure was reported for 2025.
Where is The Aquatic I?
The Aquatic I is at 2001 FIFTH ST, in Berkeley, California.
How big is The Aquatic I and when was it built?
The Aquatic I has 45,168 sq ft of gross floor area, as reported in its 2025 disclosure. It is classed as multifamily (5+ units).
Is The Aquatic I covered by BESO (BMC Chapter 19.81)?
Yes — it appears in the 2025 Building Emissions Saving Ordinance disclosure, which lists the buildings reporting under BESO (BMC Chapter 19.81).
Working with Berkeley 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 Emissions Saving Ordinance (BESO (BMC Chapter 19.81)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “The Aquatic I, Berkeley, California — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/berkeley/the-aquatic-i-aad28ff3 (data as of October 2, 2026).