




421 Burnett Ave, San Francisco, CA, 94131
About This Home
Twin Peaks modern vision parcel that will be subdivided into two separate lots, offering approximately 43 feet of combined frontage and sweeping city views. 421-423 Burnett Avenue is offered with plans for two dramatic side-by-side, separate and individual contemporary residences, each with its own legal ADU, thoughtfully designed to maximize scale, natural light, privacy, and indoor-outdoor living. The proposed designs feature two striking multi-level modern homes with expansive entertaining spaces, view terraces, luxurious primary suites, multiple bedrooms, and seamless connections to outdoor living areas. Plans also include separate legal ADUs, ideal for guest quarters, multigenerational living, a home office, or potential rental income. The two newly created lots measure approximately 2,989 and 2,896 square feet, both exceeding the City's 2,500-square-foot minimum lot size requirement. A unique setting for a significant architectural statement in one of San Francisco's most desirable hillside neighborhoods. Plans envision garage parking, landscaped terraces, roof deck elements, and sophisticated contemporary architectural detailing throughout. Ideally located moments from Noe Valley, the Castro, and the recreational trails of Twin Peaks, this is an exceptional opportunity for developers, investors, or end users to create two showcase residences with flexibility, scale, and panoramic outlooks. Buyer to investigate and verify the status of plans, permits, approvals, subdivision, and development potential to their satisfaction. Seller makes no representation regarding permit issuance or approval status. Buyer shall be responsible for all costs associated with obtaining building permits and completing construction.(these are renderings not photos)
Getting Around
Schools
Construction
Type & Style
- Home type: SingleFamily
- Property subType: Single Family Residence
Interior
Bedroom1
- Area: 0
Bedroom2
- Area: 0
Bedroom3
- Area: 0
Bedroom4
- Area: 0
Bedrooms & Bathrooms
- Bedrooms: 10
- Bathrooms: 10
- Full bathrooms: 8
- 1/2 bathrooms: 2
Dining Room
- Area: 0
Family Room
- Area: 0
Interior Area
- Total structure area: 9,474
- Total interior livable area: 9,474 sqft
Kitchen
- Area: 0
Living Room
- Area: 0
Master Bedroom
- Area: 0
Property
Details
- Parcel number: 2745048
- Special condition: Standard
Lot
- Lot size: 5,885 sqft
Parking
- Total spaces: 2
- Parking features: See Remarks,Independent,On Site (Single Family Only)
- Has garage: Yes
- Attached garage spaces: 2
- Covered spaces: 2
Climate Risk is Financial Risk
Every home has a financial story beyond the listing price. Below, you’ll see the climate risks that could affect this property — and in Bills & Affordability, how those risks may influence repairs, insurance, utilities, and long-term value.
Biggest Threats for This Home
- Earthquake
- Inland Flooding
- Landslide
How This Home’s Risks Compare
FEMA Declared Disasters in San Francisco County and California
Understanding the Costs
Financial advisors generally recommend spending no more than 30% of your gross household income on housing costs. In practice, many households stretch to 35% or beyond — especially in high-cost markets.
Estimated Costs Today
| Monthly | Annual | |
|---|---|---|
| Mortgage | $25,282 | $303,384 |
| Home Insurance * | $552 | $6,624 |
| Property Taxes | $3,000 | $36,000 |
| Electricity | $2,031 | $24,378 |
| Total | $30,865 | $370,380 |
Income You'd Need if You Spent...
California FAIR Plan Programs
How Costs Could Change Over Time
Climate risk is quickly impacting all of the major home ownership costs. Adjust the growth rates and percentage of income spent on housing below to see how your housing costs could change over the next 10 years — and what income you'd need to keep up.
Comparing Against the Market
Price Per Sq Ft
vs Other Active Listings
Avg $/sqft
vs Homes Sold Last Month
Median $/sqft
Current Market Trends
Median Price Per Square Foot
The median price per square foot of homes sold in this area each month. Compare this to this listing's price per square foot to gauge whether the home is priced in line with recent sales.
Historicals for This Listing
Zestimate History ($/sqft)
No zestimate history available
Price History
| Date | Event | Price |
|---|---|---|
| 2026-07-07 | Listed for sale | $5,000,000 |
