1. Potential Seismic Vulnerability: As a 125-year-old structure, it may not meet modern seismic standards, potentially requiring costly retrofitting (estimated $10,000 to $50,000+).
2. Possible Lead and Asbestos: Given its age, the home likely contains lead-based paint and possibly asbestos, which could require expensive remediation (lead abatement can cost $8,000 to $15,000; asbestos removal can range from $20,000 to $30,000).
3. Outdated Electrical and Plumbing: Homes of this age often have knob-and-tube wiring and galvanized steel pipes, which may need complete replacement (rewiring can cost $8,000 to $15,000; replumbing can range from $15,000 to $25,000).
4. Foundation Issues: Victorian-era homes in San Francisco often have foundation problems due to age and seismic activity. Repairs can be extremely costly, potentially exceeding $100,000.
5. Energy Inefficiency: Despite the central gas heating, the home's age suggests poor insulation and inefficient windows, leading to high energy costs. Upgrading insulation and windows could cost $20,000 to $30,000.
6. Roof Concerns: If original or aging, the roof may need replacement soon, costing $15,000 to $25,000 for a home of this size.
7. Pest Issues: Old wood structures in San Francisco are prone to termite and dry rot issues. Treatment and repairs can easily exceed $10,000.
8. Zoning and Permit Challenges: The separate unit and art studio may not be properly permitted, potentially leading to legal issues or costly retroactive permitting processes.
9. High Ownership Costs: Total monthly costs could exceed $8,000 (assuming a 20% down payment), including mortgage ($5,700), property tax ($1,990), insurance ($360), and estimated maintenance ($500).
10. Market Uncertainty: The property's listing history suggests potential overpricing, and the San Francisco market has shown signs of cooling, which could impact future appreciation.