1776 Mass Ave
Office in Washington, DC, DC · 1776 Massachusetts Ave NW · 20036
At a glance
1776 Mass Ave is a 96,447-square-foot office building at 1776 Massachusetts Ave NW in Washington, DC, built in 1970. In its 2017 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 90 out of 100 (grade A), a site energy-use intensity of 50.7 kBtu/ft² and 543 tCO₂e of greenhouse-gas emissions. That score is higher than 89% of the 774 scored office buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2017
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 90 (band A) |
| Site EUI | 50.7 kBtu/ft² |
| Source EUI | 159.2 kBtu/ft² |
| GHG emissions | 543 tCO₂e |
| GHG intensity | 5.6 kgCO₂e/ft² |
| Electricity | 1,433,364 kWh |
| Natural gas | 0 therms |
| Water use | 1,448 kgal |
| Gross floor area | 96,447 sq ft |
| Source record | dc:PM3499503:2017 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2017latest | 90 | -1 | 50.7 kBtu/ft² | 543 tCO₂e |
| 2016 | 91 | +5 | 50.3 kBtu/ft² | 556 tCO₂e |
| 2015 | 86 | +2 | 56.7 kBtu/ft² | 732 tCO₂e |
| 2014 | 84 | 58.4 kBtu/ft² | 754 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
1776 MASS AVE RE LLC
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Location
- Address
- 1776 Massachusetts Ave NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20036
- Coordinates
- 38.90846, -77.04115
Within ~1 km
Nearby benchmarked buildings
- International Squarescore 56
Office · 1,233,833 sq ft
- Washington Hiltonscore 42
Hotel · 973,414 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
- Washington Squarescore 81
Office · 720,712 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 1776 Mass Ave compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. 1776 Mass Ave's ENERGY STAR score of 90 compares with an average of 70 across the 774 that report a score; it scores higher than 89% of them and lower than 9%. Its site EUI of 50.7 kBtu/ft² is roughly in line with the average of 55.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.6 kgCO₂e/ft² is about 12% above the group average of 5.0 kgCO₂e/ft².
At 96,447 sq ft, it is about 55% below the average floor area of 216,135 sq ft for those buildings. It was built in 1970, 4 years earlier 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 1776 Mass Ave's energy performance changed over time?
BuildingCensus holds 4 Washington, DC disclosures for 1776 Mass Ave, covering report years 2014–2017. Its ENERGY STAR score went from 84 in 2014 to 90 in 2017 (+6 points); its best year on file was 2016, at 91. Site EUI moved from 58.4 kBtu/ft² (2014) to 50.7 kBtu/ft² (2017), a 13% decrease. Reported emissions went from 754 tCO₂e to 543 tCO₂e over the same span (down 28%).
What does an ENERGY STAR score of 90 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 90 means the building performs better than about 90% of its national peers. BuildingCensus bands the score into report-card grades; 90 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 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. 1776 Mass Ave's 50.7 kBtu/ft² across 96,447 sq ft works out to about 4.9 billion Btu (1,433 MWh-equivalent) in 2017. Its source EUI of 159.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,433,364 kWh of electricity, 0 therms of natural gas and 1,448 thousand gallons of water for the year.
Which law requires 1776 Mass Ave to report its energy use?
1776 Mass Ave 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 2017 disclosure (source record dc:PM3499503:2017). 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
- Society 1776 Mass Ave, LLC· 96,006 sq ft · score 82 (B)
- IUOE· 95,981 sq ft · score 85 (A)
- Annacostia Professional building· 94,612 sq ft · score 68 (C)
- 610 Water Street SW· 94,588 sq ft · score 33 (D)
- AMERICAN SOCIETY FOR MICROBIOLOGY· 94,580 sq ft · score 85 (A)
- Democratic Properties Corporation· 94,163 sq ft
- Office buildings in Washington, DC· 899 benchmarked
- All Washington, DC benchmarked buildings· Clean and Affordable Energy Act / BEPS
- Most efficient large buildings in Washington, DC
- Least efficient large buildings in Washington, DC
- Biggest emitters in Washington, DC
Frequently asked questions
What is 1776 Mass Ave's energy grade?
1776 Mass Ave scores 90 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2017 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1776 Mass Ave use?
Its 2017 site energy-use intensity was 50.7 kBtu/ft² (159.2 kBtu/ft² source) across 96,447 sq ft, including 1,433,364 kWh of electricity and 0 therms of natural gas.
What are 1776 Mass Ave's carbon emissions?
1776 Mass Ave reported 543 tCO₂e of greenhouse-gas emissions (5.6 kgCO₂e/ft²) for 2017.
Where is 1776 Mass Ave?
1776 Mass Ave is at 1776 Massachusetts Ave NW, in Washington, DC 20036. Its coordinates are 38.90846, -77.04115 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1776 Mass Ave and when was it built?
1776 Mass Ave has 96,447 sq ft of gross floor area, as reported in its 2017 disclosure. The disclosure lists 1970 as its year built. It is classed as office.
Is 1776 Mass Ave covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2017 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, “1776 Mass Ave, Washington, DC — 2017 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1776-mass-ave-82c6b11a (data as of July 9, 2026).