Zen Apollo
Multifamily Housing in Washington, DC, DC · 1234 Massachusetts Avenue, NW · 20005
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 81 (band B) |
| Site EUI | 60.1 kBtu/ft² |
| Source EUI | 107.3 kBtu/ft² |
| GHG emissions | 934 tCO₂e |
| GHG intensity | 4.1 kgCO₂e/ft² |
| Electricity | 1,700,711 kWh |
| Natural gas | 79,914 therms |
| Water use | 18,424 kgal |
| Gross floor area | 229,570 sq ft |
| Source record | dc:PM4567348:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 81 | +2 | 60.1 kBtu/ft² | 934 tCO₂e |
| 2023 | 79 | -1 | 60.2 kBtu/ft² | 939 tCO₂e |
| 2022 | 80 | +8 | 61.9 kBtu/ft² | 975 tCO₂e |
| 2021 | 72 | -6 | 59.4 kBtu/ft² | 1,011 tCO₂e |
| 2020 | 78 | +11 | 55.8 kBtu/ft² | 965 tCO₂e |
| 2019 | 67 | +13 | 65.3 kBtu/ft² | 1,114 tCO₂e |
| 2018 | 54 | -26 | 76.0 kBtu/ft² | 1,263 tCO₂e |
| 2017 | 80 | +2 | 60.3 kBtu/ft² | 1,075 tCO₂e |
| 2016 | 78 | -1 | 59.9 kBtu/ft² | 1,138 tCO₂e |
| 2015 | 79 | +19 | 59.4 kBtu/ft² | 1,237 tCO₂e |
| 2014 | 60 | 65.0 kBtu/ft² | 1,360 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
MASS HOUSE LLC
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Location
- Address
- 1234 Massachusetts Avenue, NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20005
- Coordinates
- 38.90420, -77.02931
Within ~1 km
Nearby benchmarked buildings
Convention Center · 1,750,000 sq ft
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- Midtown Centerscore 91
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- Capital One Arenascore —
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See also: most efficient in Washington, DC · biggest emitters
Frequently asked questions
What is Zen Apollo's energy grade?
Zen Apollo scores 81 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 Zen Apollo use?
Its 2024 site energy-use intensity was 60.1 kBtu/ft² (107.3 kBtu/ft² source) across 229,570 sq ft, including 1,700,711 kWh of electricity and 79,914 therms of natural gas.
What are Zen Apollo's carbon emissions?
Zen Apollo reported 934 tCO₂e of greenhouse-gas emissions (4.1 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:PM4567348:2024.