Mass Place Apartments
Multifamily Housing in Washington, DC, DC · 1111 Massachusetts Ave. NW · 20001
At a glance
Mass Place Apartments is a 123,113-square-foot multifamily housing building at 1111 Massachusetts Ave. NW in Washington, DC, built in 1965. In its 2016 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 75.6 kBtu/ft² and 665 tCO₂e of greenhouse-gas emissions. That score is higher than 31% of the 1,618 scored multifamily housing buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2016
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 64 (band C) |
| Site EUI | 75.6 kBtu/ft² |
| Source EUI | 126.5 kBtu/ft² |
| GHG emissions | 665 tCO₂e |
| GHG intensity | 5.4 kgCO₂e/ft² |
| Electricity | 813,013 kWh |
| Natural gas | 65,314 therms |
| Water use | 6,020 kgal |
| Gross floor area | 123,113 sq ft |
| Source record | dc:PM4052044:2016 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2016latest | 64 | +13 | 75.6 kBtu/ft² | 665 tCO₂e |
| 2015 | 51 | +35 | 79.1 kBtu/ft² | 778 tCO₂e |
| 2014 | 16 | 108.9 kBtu/ft² | 1,008 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
CCA MASSACHUSETTS AVE LP
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Location
- Address
- 1111 Massachusetts Ave. NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20001
- Coordinates
- 38.90487, -77.02734
Within ~1 km
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How does Mass Place Apartments compare with other multifamily housing buildings in Washington, DC?
The latest disclosures cover 1,799 multifamily housing buildings in Washington, DC, out of 6,870 buildings citywide. Mass Place Apartments's ENERGY STAR score of 64 compares with an average of 72 across the 1,618 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 75.6 kBtu/ft² is about 48% above the average of 51.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 5.4 kgCO₂e/ft² is about 42% above the group average of 3.8 kgCO₂e/ft².
At 123,113 sq ft, it is roughly in line with the average floor area of 136,346 sq ft for those buildings. Its 1965 construction date is close to the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Mass Place Apartments's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for Mass Place Apartments, covering report years 2014–2016. Its ENERGY STAR score went from 16 in 2014 to 64 in 2016 (+48 points). Site EUI moved from 108.9 kBtu/ft² (2014) to 75.6 kBtu/ft² (2016), a 31% decrease. Reported emissions went from 1,008 tCO₂e to 665 tCO₂e over the same span (down 34%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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. Mass Place Apartments's 75.6 kBtu/ft² across 123,113 sq ft works out to about 9.3 billion Btu (2,728 MWh-equivalent) in 2016. Its source EUI of 126.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 813,013 kWh of electricity, 65,314 therms of natural gas and 6,020 thousand gallons of water for the year.
Which law requires Mass Place Apartments to report its energy use?
Mass Place Apartments 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 2016 disclosure (source record dc:PM4052044:2016). 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 multifamily housing buildings in Washington, DC
- The Gale (150 Q St NE)· 123,056 sq ft
- The Lauren Condominium· 122,519 sq ft · score 86 (A)
- The Parkhill· 122,458 sq ft · score 89 (A)
- The Hudson· 121,250 sq ft · score 91 (A)
- N Street Village· 121,128 sq ft · score 8 (D)
- Langston Lane Apartments· 121,100 sq ft · score 92 (A)
- Multifamily Housing buildings in Washington, DC· 1,799 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 Mass Place Apartments's energy grade?
Mass Place Apartments scores 64 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2016 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Mass Place Apartments use?
Its 2016 site energy-use intensity was 75.6 kBtu/ft² (126.5 kBtu/ft² source) across 123,113 sq ft, including 813,013 kWh of electricity and 65,314 therms of natural gas.
What are Mass Place Apartments's carbon emissions?
Mass Place Apartments reported 665 tCO₂e of greenhouse-gas emissions (5.4 kgCO₂e/ft²) for 2016.
Where is Mass Place Apartments?
Mass Place Apartments is at 1111 Massachusetts Ave. NW, in Washington, DC 20001. Its coordinates are 38.90487, -77.02734 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Mass Place Apartments and when was it built?
Mass Place Apartments has 123,113 sq ft of gross floor area, as reported in its 2016 disclosure. The disclosure lists 1965 as its year built. It is classed as multifamily housing.
Is Mass Place Apartments covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2016 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, “Mass Place Apartments, Washington, DC — 2016 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/mass-place-apartments-4540e48b (data as of July 9, 2026).