South San Francisco, CA

South San Francisco Max HELOC Calculator

Calculate your maximum home equity line of credit in South San Francisco, San Mateo County. Median home value: $1,350,000 | 2026 conforming limit: $1,149,825.

Your Property Details

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South San Francisco, San Mateo County median: $1,350,000

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South San Francisco, San Mateo County Market Snapshot

Conforming Limit
$1,149,825
5-Year Appreciation
28.0%
Median Home Value
$1,350,000
Avg Annual Growth
5.6%

Your Equity Position

Current Equity

$540,000

Equity Percentage

40.0%

Max Total Debt at 85% CLTV

$1,147,500

Available HELOC Line

$337,500

HELOC Line by CLTV Tier

80% CLTV

Max Total Debt

$1,080,000

Available HELOC Line

$270,000

85% CLTV

Max Total Debt

$1,147,500

Available HELOC Line

$337,500

90% CLTVJumbo

Max Total Debt

$1,215,000

Available HELOC Line

$405,000

5-Year Equity Growth Projection

Based on 28.0% historical appreciation in South San Francisco, San Mateo County, California (at 85% CLTV):

YearHome ValueEquityHELOC Line
Today$1,350,000$540,000$337,500
Year 1$1,425,600$615,600$401,760
Year 2$1,505,434$695,434$469,618
Year 3$1,589,738$779,738$541,277
Year 4$1,678,763$868,763$616,948
Year 5$1,772,774$962,774$696,857

Calculations are estimates for educational purposes only. Actual HELOC amounts depend on credit score, DTI ratio, property appraisal, and lender guidelines. HELOC rates are typically variable and tied to the Prime rate. Conforming loan limit for South San Francisco, San Mateo County is $1,149,825 (2026 FHFA). Contact Mo Abdel at (949) 822-9662 for a personalized analysis. NMLS #1426884 | Lumin Lending NMLS #2716106.

Frequently Asked Questions

What is the maximum HELOC available in South San Francisco, California?

South San Francisco is in San Mateo County, which has a 2026 FHFA conforming loan limit of $1,149,825. With South San Francisco's median home value of $1,350,000 and a 60% existing mortgage, you could access up to $337,500 at 85% CLTV. Enter your actual numbers above for a personalized calculation.

How does a HELOC draw period work in South San Francisco?

A typical HELOC has a 10-year draw period where you can access funds as needed, paying only interest on what you use. After the draw period, you enter a 20-year repayment phase with principal and interest payments. During the draw period, your available credit replenishes as you repay — similar to a credit card secured by your South San Francisco property.

Should I get a HELOC or cash-out refinance in South San Francisco?

A HELOC is ideal if you want flexible, revolving access to equity without refinancing your first mortgage — especially if your current rate is low. A cash-out refinance replaces your entire mortgage with a new, larger loan. In South San Francisco, with median values at $1,350,000, both options provide significant equity access. Mo Abdel can compare both scenarios with rates from 200+ wholesale lenders.

What credit score do I need for a HELOC in San Mateo County?

Most HELOC lenders require a minimum credit score of 680, though some wholesale lenders offer HELOCs down to 620 with compensating factors. Higher scores (720+) unlock better rates and higher CLTV allowances. With South San Francisco's property values, strong equity positions can offset marginal credit in some programs.

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