If you're a first-time buyer priced out of San Francisco proper and looking south, you've probably already done the obvious work. You've read the "best neighborhoods in SSF" lists, driven Westborough on a Saturday, and scrolled Zillow until your thumbs hurt. Most of those guides will tell you about schools, commute times, and walkability, and they're not wrong.

They're just not the part that's going to get your offer accepted.

I came into real estate from the mortgage side, after years on the underwriting end looking at why deals fell apart. The thing that surprised me when I switched seats is how often a first-time buyer falls in love with the right home in the wrong financing situation, and nobody explains the difference until the lender pulls back two weeks before close. So this guide is a little different. Same neighborhoods, but read through the lens of the rules that actually decide what an FHA buyer can buy here.

For first-time buyers in this market, FHA financing is often the most realistic path. Down payment as low as 3.5% with a 580 credit score, gift funds allowed for the entire down payment, and a debt-to-income ceiling of 43% (stretchable to 50% with compensating factors). It's the most accessible loan product for someone making a strong household income but without a decade of savings to throw at a Bay Area down payment. The catch is that FHA brings four rules that quietly decide which SSF homes you can actually close on.

Rule 1: The loan limit caps you at $1,249,125

For 2026, San Mateo County's FHA loan limit is $1,249,125 for a single-family home, the same ceiling the high-cost conforming loans hit. The median sale price in South San Francisco was $1.3M last month. That's just over the cap.

In practice, this means a meaningful share of SSF inventory is technically out of reach for an FHA buyer unless you bring enough down payment to push the loan amount under $1,249,125. On a $1.3M home, you'd need to put down about $51,000 just to hit the FHA limit, and that's before the 3.5% minimum kicks in on top. For most first-time buyers, the workable inventory sits below median price, not above.

Rule 2: FHA appraisers walk the property looking for safety issues

FHA isn't a vanilla appraisal. The appraiser is checking the home against Minimum Property Requirements, and a long list of items can flag the property and stop the loan until a seller fixes them. The most common issues:

• Peeling, chipping, or deteriorated paint on homes built before 1978 (lead-paint risk, requires remediation before close)
• Missing or unstable handrails on stairs
• Roof with less than two years of remaining life
• Visible water damage, mold, or moisture in walls, ceilings, or crawl spaces
• Non-functional plumbing, electrical, or HVAC, including corroded drains or low water pressure
• Exposed or hazardous building materials

This rule matters more in SSF than people realize. A large portion of the housing stock in Sunshine Gardens, Sign Hill, Avalon, and Brentwood is post-war tract construction from the 1940s through the 1970s. Beautiful neighborhoods, solid bones, but a meaningful share of those homes pre-date the 1978 lead-paint cutoff. If a seller hasn't repainted recently, peeling exterior trim or window frames can stop your FHA loan cold. The fix is usually small (scrape, prime, repaint) but it has to happen before close, and a seller who isn't motivated may simply choose a non-FHA buyer instead.

The work-around is being deliberate at the offer stage. I tour FHA properties looking for the same things the appraiser will look for, and we either price the issue into the offer or get a written commitment from the seller to address it.

Rule 3: Condos must be FHA-approved

If you're shopping condos or townhomes, FHA approval is its own rule and its own headache. Only about 10% of California condos are FHA-approved. That's not a typo. The HOA has to apply, get on the HUD-approved list, and meet a checklist that includes:

• At least 10% of monthly assessments contributed to reserves (Fannie Mae's threshold rises to 15% in January 2027, so even conventional buyers should care)
• A healthy majority of units owner-occupied
• No more than 15% of units 60+ days delinquent on dues
• No major pending litigation against the HOA

This rule shapes Westborough specifically. Westborough holds a fifth of SSF's population and has the most condo and townhouse inventory in the city. Plenty of those buildings are wonderful places to live and complete dead-ends for an FHA buyer. Before you write an offer in Westborough, the lender needs the HOA's questionnaire and the building's HUD status in hand. A non-warrantable condo isn't unbuyable, but it pushes you off FHA and into a portfolio loan with higher rates and bigger down-payment requirements, which usually means the home you could afford on FHA you can't afford on portfolio.

Rule 4: Mortgage insurance is part of the deal

FHA includes an upfront mortgage insurance premium of 1.75% of the loan amount (rolled into the loan) and an annual premium of around 0.55%. On the SSF loan limit of $1,249,125, that's roughly $21,860 added to your loan upfront and another $570/month on top of your principal and interest. It doesn't change which homes are eligible, but it does change which homes are affordable, and it's a number every first-time buyer should run before they tour.

How this plays out by neighborhood

Sunshine Gardens is where the FHA path is cleanest. Most homes price under the $1,249,125 cap, and the housing is mostly single-family, so the condo rule is moot. The watch-out is property condition on the older 1940s-50s ranches.

Westborough is the condo decision. If the building is FHA-approved and the HOA reserves are healthy, it's a great fit. If it isn't, you have to be willing to walk.

Sign Hill straddles the loan limit. Smaller hillside properties in the high $800Ks to low $1Ms work cleanly on FHA. The four-bedrooms with bay views push you off FHA entirely.

Avalon-Brentwood is similar to Sign Hill. Mostly single-family, mostly clean on financing as long as the price stays under the cap. Same property-condition watch-outs on the older stock.

What I'd tell you over coffee

The version of homebuying where you tour homes for three months and then get serious about the loan is the version that ends with a heartbroken phone call to your agent in week eight. The version that works is to figure out which loan product you're actually using, get a real pre-approval (not a pre-qualification, those are different things), and let the FHA rules above tell you which SSF homes are worth your weekend.

If you want help running those numbers before you start touring, or if you've been denied somewhere already and want a second read on what actually went wrong, that's the part of this work I find most useful. Reach out anytime.

James Kil is a Coldwell Banker Residential agent serving San Francisco, Daly City, and South San Francisco. He works with first-time buyers and mid-market clients in English and Korean, and brings a mortgage underwriting background to every transaction. Licensed in California (DRE# 02120566). Reach me at james@jameskil.com or (415) 377-9307.