1129 20th St NW
Office in Washington, DC, DC · 1129 20th Street NW · 20036
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 79 (band B) |
| Site EUI | 33.8 kBtu/ft² |
| Source EUI | 93.8 kBtu/ft² |
| GHG emissions | 547 tCO₂e |
| GHG intensity | 3.0 kgCO₂e/ft² |
| Electricity | 1,810,912 kWh |
| Natural gas | 853 therms |
| Water use | 871 kgal |
| Gross floor area | 185,337 sq ft |
| Source record | dc:PM16909441:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 79 | -5 | 33.8 kBtu/ft² | 547 tCO₂e |
| 2023 | 84 | -7 | 31.7 kBtu/ft² | 525 tCO₂e |
| 2022 | 91 | +7 | 29.1 kBtu/ft² | 458 tCO₂e |
| 2021 | 84 | +2 | 37.6 kBtu/ft² | 633 tCO₂e |
| 2020 | 82 | 41.4 kBtu/ft² | 698 tCO₂e |
Compliance context
Clean and Affordable Energy Act / BEPS
DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve on 5-year compliance cycles, with penalties for buildings that fail to meet their pathway.
Ownership
LIBERTY BUILDING OWNER, LLC
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Location
- Address
- 1129 20th Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20036
- Coordinates
- 38.90455, -77.04451
Within ~1 km
Nearby benchmarked buildings
- BEPS1 - Foggy Bottom Campusscore —
Mixed Use Property · 5,533,789 sq ft
- Main Complexscore 59
Office · 1,872,507 sq ft
- International Squarescore 56
Office · 1,233,833 sq ft
- Ross Hall Groupscore —
College/University · 1,047,627 sq ft
- Lafayette Centrescore 74
Office · 908,482 sq ft
Mixed Use Property · 844,878 sq ft
See also: most efficient in Washington, DC · biggest emitters
Frequently asked questions
What is 1129 20th St NW's energy grade?
1129 20th St NW scores 79 out of 100 on ENERGY STAR — band B (Above median (70–84)) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1129 20th St NW use?
Its 2024 site energy-use intensity was 33.8 kBtu/ft² (93.8 kBtu/ft² source) across 185,337 sq ft, including 1,810,912 kWh of electricity and 853 therms of natural gas.
What are 1129 20th St NW's carbon emissions?
1129 20th St NW reported 547 tCO₂e of greenhouse-gas emissions (3.0 kgCO₂e/ft²) for 2024. DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve on 5-year compliance cycles, with penalties for buildings that fail to meet their pathway.
Dataset updated . Source: Building Energy Benchmarking disclosure, record dc:PM16909441:2024.