Connecticut Building
Office in Washington, DC, DC · 1150 Connecticut Ave. NW · 20036
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 85 (band A) |
| Site EUI | 48.8 kBtu/ft² |
| Source EUI | 108.3 kBtu/ft² |
| GHG emissions | 795 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 1,907,298 kWh |
| Natural gas | 4,582 therms |
| Water use | 1,987 kgal |
| Gross floor area | 197,801 sq ft |
| Source record | dc:PM1413138:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 85 | +3 | 48.8 kBtu/ft² | 795 tCO₂e |
| 2023 | 82 | +1 | 53.1 kBtu/ft² | 879 tCO₂e |
| 2022 | 81 | +6 | 56.3 kBtu/ft² | 911 tCO₂e |
| 2021 | 75 | -11 | 59.8 kBtu/ft² | 1,020 tCO₂e |
| 2020 | 86 | +5 | 50.2 kBtu/ft² | 872 tCO₂e |
| 2019 | 81 | +6 | 62.9 kBtu/ft² | 1,097 tCO₂e |
| 2018 | 75 | -9 | 64.9 kBtu/ft² | 1,130 tCO₂e |
| 2017 | 84 | ±0 | 65.6 kBtu/ft² | 1,340 tCO₂e |
| 2016 | 84 | +4 | 67.4 kBtu/ft² | 1,411 tCO₂e |
| 2015 | 80 | -2 | 74.7 kBtu/ft² | 1,735 tCO₂e |
| 2014 | 82 | -4 | 70.3 kBtu/ft² | 1,670 tCO₂e |
| 2013 | 86 | ±0 | 66.0 kBtu/ft² | 1,558 tCO₂e |
| 2012 | 86 | 67.3 kBtu/ft² | 1,790 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
NORTHWESTERN DEVELOPMENT COMPANY B
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Location
- Address
- 1150 Connecticut Ave. NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20036
- Coordinates
- 38.90531, -77.04131
Within ~1 km
Nearby benchmarked buildings
- Main Complexscore 59
Office · 1,872,507 sq ft
- International Squarescore 56
Office · 1,233,833 sq ft
- Midtown Centerscore 91
Office · 911,093 sq ft
- Lafayette Centrescore 74
Office · 908,482 sq ft
- NGS Headquartersscore 68
Office · 746,237 sq ft
- Northwestern Buildingscore 90
Office · 732,964 sq ft
See also: most efficient in Washington, DC · biggest emitters
Frequently asked questions
What is Connecticut Building's energy grade?
Connecticut Building scores 85 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Connecticut Building use?
Its 2024 site energy-use intensity was 48.8 kBtu/ft² (108.3 kBtu/ft² source) across 197,801 sq ft, including 1,907,298 kWh of electricity and 4,582 therms of natural gas.
What are Connecticut Building's carbon emissions?
Connecticut Building reported 795 tCO₂e of greenhouse-gas emissions (4.0 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:PM1413138:2024.