Mar at Seaside (nm062)
Multifamily Housing in San Diego, CA · 2401 Seaside St
At a glance
Mar at Seaside (nm062) is a 56,227-square-foot multifamily housing building at 2401 Seaside St in San Diego, California, built in 1960. In its 2022 San Diego benchmarking disclosure it reported an ENERGY STAR score of 97 out of 100 (grade A) and a site energy-use intensity of 15.7 kBtu/ft². That score is higher than 39% of the 383 scored multifamily housing buildings in San Diego.
Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12) · reporting year 2022
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 97 (band A) |
| Site EUI | 15.7 kBtu/ft² |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Gross floor area | 56,227 sq ft |
| Source record | san_diego:102245:2022 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2022latest | 97 | +9 | 15.7 kBtu/ft² | — |
| 2021 | 88 | 22.9 kBtu/ft² | — |
Compliance context
Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)
San Diego's ordinance requires annual benchmarking for commercial buildings over 50,000 sq ft, with civil penalties for buildings that fail to report.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 2401 Seaside St
- City
- San Diego
- State
- California
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in San Diego · biggest emitters
How does Mar at Seaside (nm062) compare with other multifamily housing buildings in San Diego?
The latest disclosures cover 469 multifamily housing buildings in San Diego, out of 2,567 buildings citywide. Mar at Seaside (nm062)'s ENERGY STAR score of 97 compares with an average of 90 across the 383 that report a score; it scores higher than 39% of them and lower than 57%. Its site EUI of 15.7 kBtu/ft² is about 41% below the average of 26.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 56,227 sq ft, it is about 72% below the average floor area of 203,251 sq ft for those buildings. It was built in 1960, 34 years earlier than the group's average year built (1994). 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 Mar at Seaside (nm062)'s energy performance changed over time?
BuildingCensus holds 2 San Diego disclosures for Mar at Seaside (nm062), covering report years 2021–2022. Its ENERGY STAR score went from 88 in 2021 to 97 in 2022 (+9 points). Site EUI moved from 22.9 kBtu/ft² (2021) to 15.7 kBtu/ft² (2022), a 31% decrease.
What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 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 San Diego, 73% 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. Mar at Seaside (nm062)'s 15.7 kBtu/ft² across 56,227 sq ft works out to about 0.9 billion Btu (259 MWh-equivalent) in 2022.
Which law requires Mar at Seaside (nm062) to report its energy use?
Mar at Seaside (nm062) reports under the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12), the legal basis of San Diego's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2022 disclosure (source record san_diego:102245:2022). San Diego's ordinance requires annual benchmarking for commercial buildings over 50,000 sq ft, with civil penalties for buildings that fail to report.
More multifamily housing buildings in San Diego
- THE PARK - SAN DIEGO SUNRISE MANAGEMENT COMPANY· 55,000 sq ft · score 81 (B)
- AZALEA GARDENS - R.A Snyder· 55,000 sq ft · score 100 (A)
- The Barcelona· 54,984 sq ft · score 99 (A)
- Trolley Park Terrace· 54,939 sq ft
- Del Rio #2244· 54,822 sq ft · score 100 (A)
- 4333 Dawson Avenue· 54,582 sq ft
- Multifamily Housing buildings in San Diego· 469 benchmarked
- All San Diego benchmarked buildings· Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)
- Most efficient large buildings in San Diego
- Least efficient large buildings in San Diego
- Biggest emitters in San Diego
Frequently asked questions
What is Mar at Seaside (nm062)'s energy grade?
Mar at Seaside (nm062) scores 97 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2022 San Diego disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Mar at Seaside (nm062) use?
Its 2022 site energy-use intensity was 15.7 kBtu/ft² across 56,227 sq ft.
What are Mar at Seaside (nm062)'s carbon emissions?
No greenhouse-gas emissions figure was reported for 2022.
Where is Mar at Seaside (nm062)?
Mar at Seaside (nm062) is at 2401 Seaside St, in San Diego, California.
How big is Mar at Seaside (nm062) and when was it built?
Mar at Seaside (nm062) has 56,227 sq ft of gross floor area, as reported in its 2022 disclosure. The disclosure lists 1960 as its year built. It is classed as multifamily housing.
Is Mar at Seaside (nm062) covered by the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)?
Yes — it appears in the 2022 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12).
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About this data
Source: Building Energy Benchmarking (Building Energy Benchmarking Ordinance (SDMC Ch. 14 Art. 12)), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Mar at Seaside (nm062), San Diego, California — 2022 benchmarking disclosure”, https://buildingcensus.com/buildings/san-diego/mar-at-seaside-nm062-084821f8 (data as of July 9, 2026).