Beryllium LLC
Office in Washington, DC, DC · 4530 Wisconsin Ave. NW · 20016
At a glance
Beryllium LLC is a 61,158-square-foot office building at 4530 Wisconsin Ave. NW in Washington, DC, built in 1987. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 44 out of 100 (grade D), a site energy-use intensity of 68.9 kBtu/ft² and 336 tCO₂e of greenhouse-gas emissions. That score is higher than 12% of the 774 scored office buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 44 (band D) |
| Site EUI | 68.9 kBtu/ft² |
| Source EUI | 193.0 kBtu/ft² |
| GHG emissions | 336 tCO₂e |
| GHG intensity | 5.5 kgCO₂e/ft² |
| Electricity | 1,235,444 kWh |
| Natural gas | 0 therms |
| Water use | 1,684 kgal |
| Gross floor area | 61,158 sq ft |
| Source record | dc:PM20807868:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 44 | -4 | 68.9 kBtu/ft² | 336 tCO₂e |
| 2023 | 48 | +10 | 64.8 kBtu/ft² | 315 tCO₂e |
| 2022 | 38 | 80.2 kBtu/ft² | 322 tCO₂e |
Compliance context
Clean and Affordable Energy Act / BEPS
DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve over compliance cycles (the first ends December 31, 2026; later cycles run five years), with penalties for buildings that fail to meet their pathway.
Ownership
BERYLLIUM LLC
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Location
- Address
- 4530 Wisconsin Ave. NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20016
- Coordinates
- 38.94936, -77.08065
Within ~1 km
Nearby benchmarked buildings
- 4000 Wisconsin Avenue NWscore —
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- WCL Tenleyscore —
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- Cityline at Tenleyscore 85
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See also: most efficient in Washington, DC · biggest emitters
How does Beryllium LLC compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. Beryllium LLC's ENERGY STAR score of 44 compares with an average of 70 across the 774 that report a score; it scores higher than 12% of them and lower than 88%. Its site EUI of 68.9 kBtu/ft² is about 24% above the average of 55.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 5.5 kgCO₂e/ft² is roughly in line with the group average of 5.0 kgCO₂e/ft².
At 61,158 sq ft, it is about 72% below the average floor area of 216,135 sq ft for those buildings. It was built in 1987, 13 years later than the group's average year built (1974). 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 Beryllium LLC's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for Beryllium LLC, covering report years 2022–2024. Its ENERGY STAR score went from 38 in 2022 to 44 in 2024 (+6 points); its best year on file was 2023, at 48. Site EUI moved from 80.2 kBtu/ft² (2022) to 68.9 kBtu/ft² (2024), a 14% decrease. Reported emissions went from 322 tCO₂e to 336 tCO₂e over the same span (up 4%).
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 Washington, DC, 47% 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. Beryllium LLC's 68.9 kBtu/ft² across 61,158 sq ft works out to about 4.2 billion Btu (1,235 MWh-equivalent) in 2024. Its source EUI of 193.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,235,444 kWh of electricity, 0 therms of natural gas and 1,684 thousand gallons of water for the year.
Which law requires Beryllium LLC to report its energy use?
Beryllium LLC reports under the Clean and Affordable Energy Act / BEPS, the legal basis of Washington, DC's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record dc:PM20807868:2024). DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve over compliance cycles (the first ends December 31, 2026; later cycles run five years), with penalties for buildings that fail to meet their pathway.
More office buildings in Washington, DC
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- 1222 22nd St NW· 60,728 sq ft · score 65 (C)
- Rhodium, LLC· 60,720 sq ft · score 38 (D)
- Anacostia Gateway· 60,532 sq ft · score 30 (D)
- Jemal's Chinatown I· 60,396 sq ft · EUI 61.7 kBtu/ft²
- Office buildings in Washington, DC· 899 benchmarked
- All Washington, DC benchmarked buildings· Clean and Affordable Energy Act / BEPS
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Frequently asked questions
What is Beryllium LLC's energy grade?
Beryllium LLC scores 44 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Beryllium LLC use?
Its 2024 site energy-use intensity was 68.9 kBtu/ft² (193.0 kBtu/ft² source) across 61,158 sq ft, including 1,235,444 kWh of electricity and 0 therms of natural gas.
What are Beryllium LLC's carbon emissions?
Beryllium LLC reported 336 tCO₂e of greenhouse-gas emissions (5.5 kgCO₂e/ft²) for 2024.
Where is Beryllium LLC?
Beryllium LLC is at 4530 Wisconsin Ave. NW, in Washington, DC 20016. Its coordinates are 38.94936, -77.08065 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Beryllium LLC and when was it built?
Beryllium LLC has 61,158 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1987 as its year built. It is classed as office.
Is Beryllium LLC covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2024 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Clean and Affordable Energy Act / BEPS.
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About this data
Source: Building Energy Benchmarking (Clean and Affordable Energy Act / BEPS), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Beryllium LLC, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/beryllium-llc-14cb00a8 (data as of July 9, 2026).