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Atherton's real estate market remains anchored by custom home construction and renovation projects. The Bespoke mixed-use development in nearby San Mateo signals continued investment in the region's infrastructure and housing stock.
Construction financing in San Mateo County requires careful planning around timelines and disbursement schedules. Builders and homeowners typically work with lenders who understand the phased funding model that construction projects demand.
680+ FICO
Minimum Credit Score
20-25%
Typical Down Payment
12-18 months
Build Timeline
$1,249,125
2026 Conforming Limit
Construction Loans in Atherton
Construction loans require a solid credit foundation and proof of ability to cover interest during the build phase. Most lenders want 680+ FICO and reserves to cover several months of interest-only payments while construction is underway.
The county's median household income of $156,000 supports purchases well into the custom-home range. Down payments typically run 20% to 25% on construction loans, with some lenders accepting 15% for strong borrowers.
Local decision guide
Use this guide to connect construction loans eligibility, lender expectations, and local market factors before comparing payment options in Atherton.
Atherton's real estate market remains anchored by custom home construction and renovation projects. The Bespoke mixed-use development in nearby San Mateo signals continued investment in the region's infrastructure and housing stock.
Construction financing in San Mateo County requires careful planning around timelines and disbursement schedules. Builders and homeowners typically work with lenders who understand the phased funding model that construction projects demand.
Construction loans require a solid credit foundation and proof of ability to cover interest during the build phase. Most lenders want 680+ FICO and reserves to cover several months of interest-only payments while construction is underway.
Construction lending in California is more specialized than standard purchase mortgages. Lenders must manage draw schedules, inspector sign-offs, and the transition from construction to permanent financing.
Retail banks and mortgage brokers both offer construction programs, but the underwriting is stricter and timelines longer. Plan for 45 to 60 days from application to first draw, with ongoing inspections throughout the build.
Construction loans make sense in Atherton when you're building a custom home that will exceed the conforming limit of $1,249,125. The 2026 limit is firm, so jumbo construction financing is common here.
For properties under the conforming limit, a standard construction-to-permanent loan keeps costs down. Above that threshold, jumbo construction programs offer flexibility but demand stronger reserves and credit.
Construction loans differ from standard purchase mortgages in timing and cost structure. A purchase loan closes once; a construction loan disburses in phases and converts to permanent financing at completion.
If you're buying an existing home in Atherton, a standard mortgage closes in 30 days. Building new means 12 to 18 months of construction draws, inspections, and then the permanent loan conversion.
San Mateo County school districts placed bond measures on the June ballot to fund facility improvements. That kind of public investment in schools and infrastructure supports long-term property values for new construction in the area.
The Bespoke mixed-use development at the former Talbot's site in San Mateo shows downtown revitalization momentum. Infrastructure projects like this one strengthen the broader county market for custom home builders and buyers.
Construction lending in California has grown as homeowners seek custom builds in high-value markets like Atherton. Proposed federal legislation to allow Fannie Mae and Freddie Mac to securitize construction loans could expand availability and lower costs.
Current construction lending remains concentrated among portfolio lenders and jumbo specialists. Conforming construction programs exist but are less common than jumbo options in the Atherton price range.
Construction loans disburse in phases as the home is built. Purchase loans close once at the end. Construction also charges interest-only during the build; purchase loans include principal and interest from day one.
Expect 12 to 18 months total. That includes underwriting, construction phases with inspections, and conversion to permanent financing. Timelines vary based on builder schedule and lender draw approval speed.
Yes. Construction loans typically require 20% to 25% down. Existing home purchases often accept 10% to 15% down, depending on the program and your credit.
Yes. Most construction-to-permanent loans lock your permanent rate at the time of construction close. That protects you from rate increases during the 12 to 18 month build phase.
You'll need to request a loan modification to increase the total loan amount. Lenders review the change order and your ability to cover the additional cost before approving the increase.