NBL Associates
Office in Washington, DC, DC · 800 9th Street, SW · 20024
At a glance
NBL Associates is a 120,838-square-foot office building at 800 9th Street, SW in Washington, DC, built in 1986. In its 2019 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 61.7 kBtu/ft² and 714 tCO₂e of greenhouse-gas emissions. That score is higher than 53% of the 774 scored office buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2019
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 77 (band B) |
| Site EUI | 61.7 kBtu/ft² |
| Source EUI | 172.8 kBtu/ft² |
| GHG emissions | 714 tCO₂e |
| GHG intensity | 5.9 kgCO₂e/ft² |
| Electricity | 2,185,309 kWh |
| Natural gas | 0 therms |
| Water use | 1,261 kgal |
| Gross floor area | 120,838 sq ft |
| Source record | dc:PM3411637:2019 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2019latest | 77 | +4 | 61.7 kBtu/ft² | 714 tCO₂e |
| 2018 | 73 | -9 | 66.8 kBtu/ft² | 773 tCO₂e |
| 2017 | 82 | +2 | 68.1 kBtu/ft² | 913 tCO₂e |
| 2016 | 80 | +3 | 70.3 kBtu/ft² | 975 tCO₂e |
| 2015 | 77 | +4 | 74.7 kBtu/ft² | 1,209 tCO₂e |
| 2014 | 73 | -1 | 78.7 kBtu/ft² | 1,273 tCO₂e |
| 2013 | 74 | +9 | 77.5 kBtu/ft² | 1,187 tCO₂e |
| 2012 | 65 | 90.3 kBtu/ft² | 1,457 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
NBL ASSOCIATES LP
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Location
- Address
- 800 9th Street, SW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20024
- Coordinates
- 38.88054, -77.02411
Within ~1 km
Nearby benchmarked buildings
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- Waterside Towers and Townhomesscore 81
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See also: most efficient in Washington, DC · biggest emitters
How does NBL Associates compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. NBL Associates's ENERGY STAR score of 77 compares with an average of 70 across the 774 that report a score; it scores higher than 53% of them and lower than 44%. Its site EUI of 61.7 kBtu/ft² is about 11% 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 5.9 kgCO₂e/ft² is about 18% above the group average of 5.0 kgCO₂e/ft².
At 120,838 sq ft, it is about 44% below the average floor area of 216,135 sq ft for those buildings. It was built in 1986, 12 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 NBL Associates's energy performance changed over time?
BuildingCensus holds 8 Washington, DC disclosures for NBL Associates, covering report years 2012–2019. Its ENERGY STAR score went from 65 in 2012 to 77 in 2019 (+12 points); its best year on file was 2017, at 82. Site EUI moved from 90.3 kBtu/ft² (2012) to 61.7 kBtu/ft² (2019), a 32% decrease. Reported emissions went from 1,457 tCO₂e to 714 tCO₂e over the same span (down 51%).
What does an ENERGY STAR score of 77 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 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 falls in band B — above median (70–84). 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. NBL Associates's 61.7 kBtu/ft² across 120,838 sq ft works out to about 7.5 billion Btu (2,185 MWh-equivalent) in 2019. Its source EUI of 172.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,185,309 kWh of electricity, 0 therms of natural gas and 1,261 thousand gallons of water for the year.
Which law requires NBL Associates to report its energy use?
NBL Associates 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 2019 disclosure (source record dc:PM3411637:2019). 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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Frequently asked questions
What is NBL Associates's energy grade?
NBL Associates scores 77 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2019 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does NBL Associates use?
Its 2019 site energy-use intensity was 61.7 kBtu/ft² (172.8 kBtu/ft² source) across 120,838 sq ft, including 2,185,309 kWh of electricity and 0 therms of natural gas.
What are NBL Associates's carbon emissions?
NBL Associates reported 714 tCO₂e of greenhouse-gas emissions (5.9 kgCO₂e/ft²) for 2019.
Where is NBL Associates?
NBL Associates is at 800 9th Street, SW, in Washington, DC 20024. Its coordinates are 38.88054, -77.02411 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is NBL Associates and when was it built?
NBL Associates has 120,838 sq ft of gross floor area, as reported in its 2019 disclosure. The disclosure lists 1986 as its year built. It is classed as office.
Is NBL Associates covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2019 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, “NBL Associates, Washington, DC — 2019 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/nbl-associates-00ba14f5 (data as of July 9, 2026).