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999 Ringwood Ave - Atherton Residential Development Site 0.92 Acres of Residential Land Offered at $11,500,000 in Atherton, CA 94027
Investment Highlights
- Residential development opportunity in Atherton, one of the most exclusive and desirable communities in the nation.
- 999 Ringwood Avenue is within the town’s RM-10 Residential Multifamily Overlay Zone, which allows up to ten units per acre by right.
- The lot spans 0.92 acres and features a rectangular shape, with a frontage along Bay Road and Ringwood Avenue.
- The town has a median home price of $7.7 million as of the third quarter of 2025 and is the most expensive zip code in the nation.
- Detached and attached residential product are both allowed.
- Call listing brokers for more information
Executive Summary
999 Ringwood Avenue represents the rare opportunity to acquire a 0.92-acre residential development site within Atherton’s RM-10 Multifamily Overlay Zone. This overlay allows for up to ten residential units per acre, with a minimum of five residential units per site. The subject property has the potential to be developed with up to nine single-family residences; both detached and attached residences are permitted.
Atherton does not currently require below market rate (BMR) units for projects developed under the RM-10 Multifamily Overlay Zone. This allows developers to build a 100% market-rate project while still supporting the town’s housing goals through increased density and diverse housing types. The absence of a BMR requirement greatly enhances project feasibility and profitability.
Atherton does not currently require below market rate (BMR) units for projects developed under the RM-10 Multifamily Overlay Zone. This allows developers to build a 100% market-rate project while still supporting the town’s housing goals through increased density and diverse housing types. The absence of a BMR requirement greatly enhances project feasibility and profitability.
Property Facts Under Contract
| Price | $11,500,000 | Property Type | Land |
| Sale Type | Investment or Owner User | Property Subtype | Residential |
| Sale Condition | Redevelopment Project | Proposed Use | Single Family Development |
| No. Lots | 1 | Total Lot Size | 0.92 AC |
| Zoning | RM-10 - Up to 10 residential units per acre | ||
| Price | $11,500,000 |
| Sale Type | Investment or Owner User |
| Sale Condition | Redevelopment Project |
| No. Lots | 1 |
| Property Type | Land |
| Property Subtype | Residential |
| Proposed Use | Single Family Development |
| Total Lot Size | 0.92 AC |
| Zoning | RM-10 - Up to 10 residential units per acre |
1 Lot Available
Lot
| Price | $11,500,000 | Lot Size | 0.92 AC |
| Price Per AC | $12,510,048.83 |
| Price | $11,500,000 |
| Price Per AC | $12,510,048.83 |
| Lot Size | 0.92 AC |
0.92-acre residential development site within Atherton’s RM-10 Multifamily Overlay Zone. This overlay allows for up to ten residential units per acre, with a minimum of five residential units per site.
Property Taxes
| Parcel Number | 061-091-080 | Improvements Assessment | $53,060 |
| Land Assessment | $5,306,040 | Total Assessment | $5,359,100 |
Property Taxes
Parcel Number
061-091-080
Land Assessment
$5,306,040
Improvements Assessment
$53,060
Total Assessment
$5,359,100
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999 Ringwood Ave - Atherton Residential Development Site
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