
510 1st Ave, 402, San Diego, CA 92101
510 1st Ave, 402, San Diego, CA 92101
Property Description
A rare opportunity in Downtown San Diego’s Marina District—two separate residences thoughtfully combined to create one expansive 4-bedroom home with exceptional flexibility. Unlike a traditional condo, this unique property offers multiple private hallway entrances, allowing portions of the residence to function independently while remaining connected. With only one neighboring residence on the floor, the home offers an added level of privacy that is difficult to find downtown. Enjoy the entire space as one impressive residence, create a private executive home office separate from your living area, or accommodate extended family and guests with added privacy. Two dedicated parking spaces provide valuable convenience in the heart of downtown. Located in the Marina District, just moments from the waterfront, Gaslamp Quarter, dining, entertainment and the Embarcadero, the home is positioned within one of downtown San Diego’s most established neighborhoods. The surrounding waterfront continues to evolve, with ongoing and planned development expected to further enhance connectivity, amenities and the overall waterfront experience. The City’s Downtown Community Plan specifically identifies the Marina area as benefiting from future waterfront development, improved connections to the bay and additional neighborhood-serving amenities.
Features & Amenities
Property Details
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Comparative Market Analysis
Luxury Tier · 5 active · 5 closed
San Diego · Condominium
Listed 12.8% above the median closed sale of $1,640,000. Price per sqft ($722) is a 26% discount to closed comps ($982). Expect a longer timeline — comps averaged 125 days on market. Luxury tier — fewer comparable sales widen the confidence range.
Price Position
Positioned above the market — commands a premium.
Active Properties (5)
Active Comparables
| Address | City | Year | BD | BTH | SqFt | LotSz | LP/SqFt | LP | DIM | Score |
|---|---|---|---|---|---|---|---|---|---|---|
| 1325 Pacific Highway | San Diego | 2009 | 4 | 5 | 2,995 | 0 | $701 | $2.10M | 7 | 86 |
| 700 Front Street | San Diego | 1986 | 2 | 2 | 1,940 | 0 | $927 | $1.80M | 164 | 84 |
| 1133 1st. Street | Coronado | 2000 | 2 | 2 | 1,646 | 0 | $1,212 | $2.00M | 43 | 76 |
| 2665 5TH Avenue | San Diego | 2016 | 2 | 3 | 2,032 | 0 | $786 | $1.60M | 262 | 72 |
| 2604 5th Avenue | San Diego | 2019 | 2 | 2 | 1,600 | 0 | $1,059 | $1.70M | 193 | 67 |
| Total: 5 · Average | 2.4 | 2.8 | 2,042.6 | 0 | $937 | $1.84M | 133.8 | |||
| Median | 1,940 | $1.80M | ||||||||
Closed Properties (5)
Closed Comparables
| Address | City | Year | Date | BD | BTH | SqFt | LotSz | LP | SP | SP/SqFt | SP/LP | DIM | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 700 Harbor Drive | San Diego | 2004 | 12/01/2025 | 2 | 2 | 1,706 | 65,408 | $1.80M | $1.80M | $1,055 | 1.00 | 220 | 80 |
| 1099 1st Street | Coronado | 1987 | 12/03/2025 | 2 | 3 | 1,841 | 0 | $1.80M | $1.60M | $869 | 0.89 | 205 | 76 |
| 1388 Kettner Boulevard | San Diego | 2019 | 05/12/2026 | 2 | 2 | 1,438 | 0 | $1.70M | $1.64M | $1,140 | 0.97 | 64 | 75 |
| 2750 4th Ave | San Diego | 2020 | 07/27/2026 | 3 | 3 | 1,862 | 15,088 | $2.05M | $2.05M | $1,101 | 1.00 | 19 | 72 |
| 3285 5th Avenue | Mission Hills (San Diego) | 2008 | 01/16/2026 | 2 | 3 | 2,135 | 0 | $1.65M | $1.59M | $747 | 0.97 | 119 | 67 |
| Total: 5 · Average | 2.2 | 2.6 | 1,796.4 | 40,248 | $1.74M | $1.74M | $982.4 | — | 125.4 | ||||
| Median | 1,841 | $1.64M | $1.64M | ||||||||||
Market Analysis
List vs Sale $/SqFt
Sale Price Trend
Days on Market
Sale vs List Price
This analysis was generated automatically from MLS data. For an in-depth, human-reviewed valuation, contact Joseph Sardella at josephsardella@gmail.com.