The choice between an FHA loan and a Conventional loan is rarely as simple as "FHA is for first-time buyers, Conventional is for everyone else." In a high-price market like San Diego, the right answer depends on credit score, down payment, the price point you're shopping, and whether the property you want is even FHA-eligible. This article runs through the actual program rules, the San Diego County loan limits, the real monthly cost difference, and the specific buyer scenarios where each loan type clearly wins.
The Difference Between FHA and Conventional Loans?
An FHA loan is a mortgage insured by the Federal Housing Administration and offered through approved lenders. It allows down payments as low as 3.5% with a credit score of 580 or higher, and is designed to expand access to homeownership for buyers with lower credit or smaller savings. A Conventional loan is a mortgage that is not government-insured, typically following Fannie Mae or Freddie Mac guidelines for sale on the secondary market. Conventional loans generally require a 620 minimum credit score, allow down payments as low as 3% for first-time buyers, and use private mortgage insurance (PMI) when the down payment is under 20%. The two loan types differ in credit thresholds, mortgage insurance rules, loan limits, property eligibility, and refinancing flexibility. The right choice depends on which combination of these factors fits the buyer's situation.
What Are the San Diego County FHA and Conventional Loan Limits in 2026?
San Diego County is classified as a high-cost area for both FHA and conforming Conventional loan limits, which means it qualifies for the maximum ceiling above the national baseline. For 2026, the FHA loan limit for a one-unit property in San Diego County is approximately $1,209,750 (limits are set annually by HUD and adjust each January). The conforming Conventional loan limit for a one-unit property in San Diego County is also at the high-cost ceiling, approximately $1,209,750 for 2026 based on FHFA limits. Loans above the conforming limit are classified as jumbo loans, which carry different underwriting standards and are not insured by FHA or backed by Fannie/Freddie. Multi-unit properties (2 to 4 units) have higher limits. Buyers shopping above the $1.2M range in San Diego will likely be in jumbo loan territory regardless of loan type preference.
| Loan Limit Type | 1-Unit (San Diego County 2026) | Notes |
|---|---|---|
| FHA loan limit | ~$1,209,750 | High-cost area ceiling; verify current year |
| Conventional conforming limit | ~$1,209,750 | High-cost area ceiling; verify current year |
| Jumbo loan threshold | Above ~$1,209,750 | Not FHA, not Fannie/Freddie backed |
| FHA minimum down payment | 3.5% | With 580+ FICO |
| Conventional minimum down (first-time) | 3% | Fannie Mae HomeReady, Freddie Mac Home Possible |
| Conventional minimum down (general) | 5% | Standard conforming |
How Do Credit Score Requirements Compare?
FHA loans accept credit scores down to 580 with the standard 3.5% down payment, and scores as low as 500 with a 10% down payment (though most FHA lenders set internal overlays at 620 or higher). Conventional loans typically require a 620 minimum FICO score for standard programs, with the best rates and lowest PMI costs reserved for buyers above 740. For buyers with credit scores between 580 and 660, FHA almost always offers a better interest rate than Conventional, even after accounting for FHA mortgage insurance premiums. For buyers above 740, Conventional usually wins on total cost because PMI is cheaper than FHA's mortgage insurance premium structure and PMI can be removed once equity reaches 20%. The credit score breakpoint where Conventional starts to beat FHA varies by lender and market, but in San Diego it typically lands somewhere between 680 and 720 depending on down payment and rate environment.
How Does Mortgage Insurance Differ Between FHA and Conventional?
FHA mortgage insurance has two components: an upfront mortgage insurance premium (UFMIP) of 1.75% of the loan amount, which is typically rolled into the loan balance, and an annual mortgage insurance premium (MIP) of 0.55% of the loan balance for most FHA loans, paid monthly. Critically, FHA mortgage insurance is permanent for the life of the loan if the down payment is less than 10%. Buyers who want to eliminate FHA mortgage insurance must refinance into a Conventional loan once they have sufficient equity. Conventional loans use private mortgage insurance (PMI) when the down payment is under 20%. PMI rates vary by credit score and down payment but typically run 0.3% to 1.5% of the loan amount annually. PMI is automatically removed by law once the loan balance reaches 78% of the original property value (per the Homeowners Protection Act of 1998) and can be requested for removal at 80% loan-to-value. The PMI removal flexibility is a major long-term cost advantage for Conventional loans.
Which Loan Type Has Better Property Eligibility Rules?
FHA loans have stricter property eligibility rules than Conventional loans. The property must serve as the buyer's primary residence (no investment properties or pure second homes), must meet HUD minimum property standards covering safety and structural condition, and must pass an FHA-specific appraisal that checks for issues including peeling paint, broken windows, exposed wiring, and water damage. Condominiums must be on the FHA-approved condo list (or qualify for spot approval, which adds processing time). Older homes and homes needing cosmetic repairs frequently fail FHA appraisal even when they pass a standard inspection. Conventional loans allow primary residences, second homes, and investment properties, accept a wider range of property conditions, and approve a much broader set of condominiums. In San Diego County, where a meaningful share of inventory is condos, the FHA-approved condo list is the single biggest practical limitation: many San Diego condo complexes are not currently FHA-approved, which eliminates them from consideration for FHA buyers.
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FHA vs Conventional: Side-by-Side Comparison
The clearest way to compare FHA and Conventional is across the seven factors that actually affect monthly cost and approval odds: minimum down payment, minimum credit score, mortgage insurance structure, mortgage insurance duration, debt-to-income limits, property eligibility, and loan limits. The table below summarizes each program against these factors as they apply to San Diego County buyers in 2026. The right loan for any individual buyer depends on which row in this table is the binding constraint for their situation: a buyer with a 605 credit score is constrained by the credit row; a buyer shopping at $1.4M is constrained by the loan limit row; a buyer planning to put 20% down is constrained by the mortgage insurance row.
| Factor | FHA Loan | Conventional Loan |
|---|---|---|
| Minimum down payment | 3.5% (580+ FICO) | 3% (first-time, HomeReady/Home Possible) or 5% |
| Minimum credit score | 580 (most lenders); 500 with 10% down | 620 (most lenders); 740+ for best pricing |
| Upfront mortgage insurance | 1.75% UFMIP (rolled into loan) | None |
| Annual mortgage insurance | 0.55% MIP for most loans | PMI: 0.3% to 1.5% (varies by credit) |
| Mortgage insurance duration | Life of loan (if <10% down) | Removable at 80% LTV; auto-removed at 78% |
| Max debt-to-income | Up to 56.99% with compensating factors | Typically 45% to 50% |
| Property types | Primary residence only | Primary, second home, investment |
| Condo approval | FHA-approved list required | Lender-specific approval, broader inventory |
| Loan limit (San Diego County 2026) | ~$1,209,750 (1-unit) | ~$1,209,750 (1-unit) for conforming |
| Above the limit | Not available | Jumbo loan (different program) |
| Refinance flexibility | FHA Streamline available | Conventional refi standard |
When Does FHA Beat Conventional for San Diego Buyers?
FHA wins for buyers whose situation hits any of three patterns. First, credit scores between 580 and 680, where FHA pricing usually beats Conventional pricing even after factoring in mortgage insurance costs. Second, buyers with debt-to-income ratios above 45%, where FHA's higher DTI tolerance (up to roughly 57% with compensating factors) opens approval that Conventional declines. Third, buyers with small savings (3.5% down on a $700,000 home is roughly $24,500, versus $35,000 for a 5% Conventional down payment), which is the practical entry-point difference for many first-time San Diego buyers. FHA also allows higher gift fund percentages from family members and accepts non-traditional credit history (utility payments, rent history) more readily than Conventional. The trade-off is permanent mortgage insurance and stricter property rules, both of which buyers can address later through refinance once equity builds.
When Does Conventional Beat FHA for San Diego Buyers?
Conventional wins in four common patterns. First, buyers with strong credit (typically 720+) get pricing that beats FHA even at the same down payment level. Second, buyers planning to put 20% or more down avoid PMI entirely under Conventional, while FHA still charges upfront mortgage insurance regardless of down payment. Third, buyers shopping above the conforming loan limit (jumbo territory above approximately $1,209,750 in San Diego) cannot use FHA at all. Fourth, buyers who want the option to remove mortgage insurance over time get that under Conventional but not under FHA's standard low-down-payment structure. Condo buyers in San Diego also frequently end up on Conventional simply because the specific complex they want is not FHA-approved. For buyers at higher price points or with strong financial profiles, Conventional almost always produces lower total cost of ownership over a 7-to-10 year hold period.
Can You Refinance from FHA to Conventional Later?
Yes, and many San Diego buyers do exactly this. The typical pattern is: buy with FHA at 3.5% down because credit or savings constrain the entry point, hold for two to four years while building equity through both principal paydown and price appreciation, then refinance into a Conventional loan once total equity reaches 20% of the current property value. The refinance eliminates FHA's permanent mortgage insurance premium, which on a $700,000 loan saves roughly $320 per month at typical MIP rates. The refinance carries its own closing costs (typically $5,000 to $10,000), so the break-even point is usually 12 to 24 months of MIP savings. Buyers planning this strategy should confirm with their lender at the original purchase that there is no FHA prepayment penalty (there isn't) and should track the property's market value annually to identify the right refinance window.
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We'll run both programs side-by-side, including total monthly cost, mortgage insurance, and 5-year ownership math, on any home you're considering.
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Frequently Asked Questions About FHA vs Conventional in California
- Is FHA a bad sign to sellers in San Diego?
- FHA is sometimes perceived as a weaker offer because of the FHA-specific appraisal and property condition requirements. In multiple-offer situations, sellers may favor Conventional over FHA at the same price. Strong FHA buyers can address this with pre-approval letters from well-known local lenders and waived contingencies where appropriate. The pure financing label rarely kills a deal in a normal market.
- Can I switch from FHA to Conventional during escrow?
- Yes, if you qualify for both. Switching loan types mid-escrow typically requires a full re-underwriting and can extend the close timeline by 10 to 21 days. If you are considering this, decide before opening escrow whenever possible. Sellers may not agree to extend the close-of-escrow date for a loan type change.
- What is the difference between MIP and PMI?
- MIP (Mortgage Insurance Premium) is the insurance attached to FHA loans, paid both upfront (1.75% of the loan amount) and annually (0.55% of the loan balance for most FHA loans). PMI (Private Mortgage Insurance) is the insurance attached to Conventional loans when the down payment is under 20%, paid only annually. MIP is paid to the federal government; PMI is paid to a private insurance company. PMI can be canceled when equity reaches 20%; FHA MIP cannot be canceled on most modern FHA loans without refinancing.
- Are FHA interest rates lower than Conventional?
- FHA base rates are sometimes slightly lower than Conventional base rates because the loan is government-insured. After factoring in FHA mortgage insurance, the effective monthly cost is usually higher for FHA at low loan-to-value ratios but lower for FHA at high loan-to-value ratios and low credit scores. The honest comparison is total monthly payment including mortgage insurance, not the base note rate alone.
- Can I use FHA for a condo in Carmel Valley or downtown San Diego?
- Only if the specific condo complex is on the FHA-approved list, or qualifies for spot approval at the time of purchase. Many San Diego condo complexes are not currently FHA-approved. Before falling in love with a specific condo, confirm FHA approval status. If the complex is not FHA-approved, your options are Conventional financing or a different complex.
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We work with several San Diego lenders who run real FHA vs Conventional comparisons before you write an offer.
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Darin Triolo
Founder & Lead Agent, Triolo Realty Group · California DRE License #01376927
San Diego County residential specialist working with first-time and move-up buyers across FHA, Conventional, and jumbo financing scenarios.
Founder & Lead Agent, Triolo Realty Group · California DRE License #01376927
San Diego County residential specialist working with first-time and move-up buyers across FHA, Conventional, and jumbo financing scenarios.
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