Current conventional guidelines, updated from one source.
Four cards and three tables carry every figure a conventional file turns on, drawn from one source built on the agencies’ published guides: down payment, credit, mortgage insurance, ratios, then the leverage by occupancy, the seller-contribution caps, and the waiting periods after a credit event.
First-time buyer; 5% standard; 97% loan-to-value at the top
On a principal residence the down payment starts at 3% for a first-time buyer and 5% otherwise, the top leverage being 97% loan-to-value. Second homes and investment properties ask for more, as the leverage table shows, and the price of any leverage above 80% is mortgage insurance.
Priced on the score; no agency minimum with an automated approval
620 is the working floor, a wholesale overlay rather than an agency rule, since Fannie Mae requires no minimum score for a loan the automated system approves and 620 only on a manual fixed-rate file. Above the floor, each step up in score lowers the cost of the loan and of the insurance.
Required above 80% LTV; removed at 80% by request, 78% automatically
Private mortgage insurance applies above 80% loan-to-value. Fannie Mae’s 2022 figures put the annual cost in a range of 0.58%–1.86%, depending on the score and the leverage. It ends by request at 80% of the original value, automatically at 78%, and no later than the midpoint of the term.
With an automated approval; 36% to 45% on a manual file
The total ratio runs to 50% with an automated approval, with the finding itself deciding how much of that room a particular file gets; manual files are read at 36%, or 45% with the matrix’s credit and reserve criteria met.
| Purpose | Occupancy and program | Maximum LTV |
|---|---|---|
| Purchase | One-unit principal residence, first-time buyer (fixed rate) | 97% |
| Purchase | One-unit principal residence, standard | 95% |
| Purchase | HomeReady / Home Possible (income limits apply) | 97% |
| Purchase | Two- to four-unit principal residence | 95% |
| Purchase | Second home | 90% |
| Purchase | Investment property, one unit | 85% |
| Purchase | Investment property, two to four units | 75% |
| Refinance | Limited cash-out (rate-and-term), one-unit principal residence | 95% |
| Refinance | Cash-out, one-unit principal residence | 80% |
| Refinance | Cash-out, two to four units, second home or investment | 75% |
| Combined LTV | Maximum contribution |
|---|---|
| above 90 percent | 3% of the sales price |
| 75.01 to 90 percent | 6% of the sales price |
| 75 percent or less | 9% of the sales price |
| investment property (any) | 2% of the sales price |
| Event | Waiting period |
|---|---|
| Chapter 7 or 11 bankruptcy | four years from discharge or dismissal (two years with documented extenuating circumstances) |
| Chapter 13 bankruptcy | two years from discharge; four years from dismissal (two with extenuating circumstances) |
| Multiple bankruptcy filings | five years when more than one filing within the past seven years |
| Foreclosure | seven years (three with extenuating circumstances, then limited to a principal residence or second home at 90 percent LTV, purchase or limited cash-out) |
| Deed-in-lieu, short sale or mortgage charge-off | four years (two with extenuating circumstances) |
Mortgage insurance: Fannie Mae reports that private mortgage insurance typically ranged from 0.58%–1.86% of the loan amount a year; the premium on a specific loan is priced by the insurer on the score, the leverage, and the coverage, and is never quoted here. Gifts from relatives may fund the entire down payment on a one-unit principal residence. HomeReady and Home Possible lend to 97% with income at or below 80% of the area median; HomeOne lends to the same leverage with a first-time buyer and no income limit.
Current conventional snapshot · updated October 3, 2026 · principal residences occupied within sixty days, second homes, and one- to four-unit investment properties · conforming limits apply by county and are confirmed by a Lendmire loan officer · above the limit, see the jumbo program · no prepayment penalty · Lendmire is a broker, never the lender.
Program guidelines only, not an offer of credit. The leverage, credit floor, mortgage insurance thresholds, ratio maximums, contribution caps, and waiting periods on this page are agency parameters and lender overlays subject to change without notice and to full underwriting of the borrower and the property. Mortgage insurance premiums are priced by the insurer and are not quoted here. Lendmire is a broker, not a lender. Licensed in sixteen states for consumer mortgages. NMLS #2371349.
What a conventional loan is — and how the file is qualified.
A conventional loan is a mortgage written to the rules of Fannie Mae and Freddie Mac so a lender can sell it to them after closing. Those rules decide the leverage by occupancy, the credit standard, the insurance above the threshold, and the ratios, and the four cards below take a South San Francisco file apart along exactly those lines.
For the program overview, see Lendmire’s conventional loan program, or the statewide guide at Conventional Loans in California; for the mortgage insurance cancellation rules, see the CFPB.
Leverage by occupancy and buyer
Who the buyer is matters as much as what the home is. A first-time buyer, meaning no ownership interest in a home for three years, qualifies for the smallest down payment on a principal residence; a repeat buyer starts a little higher; and HomeReady, Home Possible, and HomeOne open the top leverage to buyers who meet their conditions.
Credit scores and automated underwriting
The automated system reads the score and the credit events together, and a derogatory event does not end eligibility; it starts a clock. Bankruptcies, foreclosures, short sales, and deed-in-lieu transfers each carry a waiting period in the agencies’ guides, shortened by documented extenuating circumstances, and the snapshot shows each one for a South San Francisco buyer.
Mortgage insurance that cancels
Twenty percent down means no mortgage insurance at all, and anything less means insurance for a while. The calculator on this page shows the South San Francisco payment with the estimated premium and the payment after it ends, along with the month on the amortization schedule when the request and automatic thresholds arrive.
Ratios, reserves, and the DU finding
Reserves are measured in months of the total housing payment and set by the finding, the occupancy, and the number of financed properties; a South San Francisco second-home or investment file carries more than a principal residence. Income needs a two-year history and a reasonable expectation of continuing.
Every input below is yours: the South San Francisco price, the down payment, the buyer type, the term, the rate, the insurance estimate, and the escrows. The thresholds and the ratio ceiling come from the program; the payment, the insurance, and the cancellation month follow from the arithmetic.
Where South San Francisco buyers borrow — and how a conforming loan fits.
The leverage limits are percentages; the market turns them into dollars. The Census figures below describe South San Francisco’s ownership, home values, and household income, the backdrop every conforming loan here is sized against.
These are context figures, not underwriting inputs. Two buyers at the same score can see different files here: one buys at the median and sits well inside the ratio, another stretches above it and needs reserves and a stronger finding. The market sets the spread.
Data sources: U.S. Census Bureau — ACS 5-Year (2024) housing and population estimates, including tenure, home values, gross rents, and household income.
Distinct South San Francisco neighborhoods, distinct conventional files.
Where South San Francisco buyers shop, and what the conforming file turns on in each place: the occupancy, the property type the appraiser sees, the project review it needs, and the price the ratio has to carry.
Higher-value homes
On South San Francisco’s higher-value homes, a conventional loan hits the conforming limit first. Buyers over it can bring a larger down payment to fit under it, use the high-balance range where the county has one, or choose the jumbo program. A loan officer confirms the current limit before the offer. Median household income in South San Francisco sits near $136,578 on the latest Census estimate.
Two-to-four-unit homes
The owner-occupied multi-unit South San Francisco file is a conventional specialty with its own leverage, its own rent-counting rules, and its own reserve requirement. The buyer in one unit qualifies on the combined picture. About 41% of South San Francisco’s households rent — roughly 8,960 renter households on the latest Census estimate.
Newer infill and recent construction
On recent construction in South San Francisco the appraisal is usually uneventful and the arithmetic decides: whether the loan fits under the conforming limit, and whether the ratio carries the price once the insurance is added at the leverage chosen. On a one-unit principal residence at South San Francisco’s median value, the first-time buyer’s minimum down payment comes to about $35,700 and the standard minimum to about $59,400 — before closing costs, and before the mortgage insurance that comes with either; a second home, a multi-unit home, or a rental starts higher, as the leverage table shows.
Established close-in neighborhoods
An older South San Francisco house is a routine conventional purchase; the appraisal is lighter on condition than a government appraisal, which is one reason buyers of older homes often choose this program. The value against the contract price is the usual question. South San Francisco is home to about 64K people and sits within the San Francisco-Oakland-Fremont, CA area.
Condominiums and townhomes
Townhomes in South San Francisco finance like houses when they are fee simple and like condominiums when they are organized as one; the lender settles which before the appraisal, and the leverage follows the occupancy either way. Roughly 12,878 South San Francisco households own their homes on the latest Census estimate — 59% of all households, the pool a conventional purchase joins.
Investor and second-home purchases
An investor buying a South San Francisco unit to rent uses the conventional program at the investment leverage, documents the rent the agencies allow, and shows reserves for every financed property; the agencies cap how many such loans one borrower may carry. The median owner-occupied home value in South San Francisco runs near $1,188,800 on the latest Census estimate.
The rules do not change with the street. Every South San Francisco file is checked the same way: price against the appraisal, property against the agencies’ standards, condominium against the project review, occupancy against its leverage limit, and borrower against the score, the ratios, and the reserves the finding requires.
Four ways South San Francisco buyers put a conforming loan to work.
Because the agencies buy loans on principal residences, second homes, and investment property alike, the conventional loan is a program a South San Francisco household can use for every home it owns. Four examples follow.
Buy with twenty percent down and no insurance
The move-up South San Francisco buyer selling one home and bringing twenty percent to the next usually lands here: no mortgage insurance, the strongest cost tier the score earns, and a loan the automated system reviews with the equity brought forward counted in the file.
Buy a first home at the first-time-buyer minimum
The first purchase on a conventional loan starts at the first-time buyer’s minimum in the snapshot, with the whole amount allowed as a family gift. A South San Francisco buyer with a solid score may pay less each month than on FHA because the insurance is priced on the score and ends; the comparison is run on the actual numbers.
Buy a second home
For the South San Francisco vacation or weekend home, the conforming loan is usually the only consumer route: FHA and VA finance principal residences only. The down payment is larger, the reserves are deeper, and the score prices the loan the same way it does on any conventional purchase.
Refinance or take cash out
A South San Francisco owner can refinance a conventional loan two ways: a limited cash-out refinance to the rate-and-term leverage in the snapshot, or a cash-out refinance to the lower cash-out leverage after the seasoning period, on a principal residence, second home, or rental at each occupancy’s own limit.
Estimate the payment on a South San Francisco price before requesting a quote.
Enter a South San Francisco price, the down payment, and the buyer type, choose a term, and the calculator returns the loan and its loan-to-value, principal and interest, the estimated mortgage insurance while the loan is above the threshold, taxes and insurance, the payment after the insurance ends, and the ratio if you enter income. It also shows the month the balance reaches the cancellation thresholds. The rate field holds the weekly Freddie Mac benchmark as a market reference, never a quote.
South San Francisco conventional payment estimate
The starting figures are a South San Francisco price at the first-time buyer’s minimum down payment. Replace them with yours.
Editable benchmark: 7.28% as of October 1, 2026 · Freddie Mac 30-year average via FRED®. A conventional market reference, not a conventional loan quote.
Estimate seeded at the low end of Fannie Mae’s published range (0.58%–1.86% a year); the insurer prices the actual premium on the score and the leverage. Applies only above 80% loan-to-value.
Illustrative starting assumptions: a $750,000 price (the highest price the example uses, which sits below South San Francisco’s median owner-occupied home value), the first-time buyer’s minimum down payment, a thirty-year term at the current Freddie Mac benchmark, mortgage insurance at the low end of Fannie Mae’s published range, property taxes and insurance estimated for California (U.S. Census Bureau). Every field is editable.
Illustrative estimate only — not a Loan Estimate, approval, quote, or commitment to lend. The rate field carries the weekly Freddie Mac thirty-year conventional benchmark, a market reference and not a conventional loan quote; your rate is set by the lender at lock. The mortgage insurance figure is an editable estimate seeded from Fannie Mae’s published typical range, not a premium quote; the insurer prices the actual premium, and the cancellation month assumes scheduled payments with no extra principal and no change in value. Taxes, insurance and dues are editable estimates; closing costs are not included. Conforming loan limits apply by county. Licensed in sixteen states for consumer mortgages.
Same buyer, three very different closings.
Most buyers can close the same purchase three ways, and the structures differ more than the labels suggest: conventional with insurance that cancels, FHA with a small investment and premiums for the life of the loan at full leverage, or VA with nothing down and no insurance for the eligible veteran.
Conventional, FHA, or VA.
The program’s strengths are the cancellable insurance, the breadth of occupancies, and a cost structure that rewards a strong score; its weakness is the same structure applied to a weak one. A South San Francisco buyer with a strong score usually pays less each month here than on FHA.
FHA asks for a small minimum investment that a gift can cover, accepts a forgiving decision score, and charges an upfront premium plus an annual premium that lasts for the term at full leverage. For a South San Francisco buyer with a modest score it usually wins; for a strong score the conventional premium is smaller and temporary. See Lendmire’s FHA loan program.
A South San Francisco buyer with VA eligibility and full entitlement rarely needs a conventional loan for a principal residence: nothing down, no insurance, and residual-income underwriting. Conventional is the route for that same veteran’s second home or investment property, which VA does not finance. See Lendmire’s VA loan program.
Conventional for the solid score, the move-up buyer, the second home, and the rental; FHA for the modest score and the small investment; VA for the eligible borrower buying a principal residence. The South San Francisco file is priced on all three before one is recommended. Above the conforming limit, see the jumbo loan program.
What to prepare for a South San Francisco scenario review.
Gather these before a South San Francisco review: the ordinary mortgage documents, plus the pieces that settle the first-time-buyer question and the occupancy.
This is a general preparation guide, not a universal checklist. The selected lender may request additional information based on the transaction, the property, the automated underwriting finding, and the income picture. Nothing here is legal or tax advice.
Local details that can change the loan.
Check these before leaning on any number for South San Francisco: the mortgage insurance structure and when it ends, the score and what it costs, the appraisal, the condominium review, the conforming limit, the ratio and reserves, and the occupancy.
Use these checks to keep the South San Francisco file clean and fundable.
Before asking for a quote, know three answers: how much insurance the leverage carries and for how long, what the score does to the price, and whether the property and the loan amount fit the conforming program.
- Plan the insurance: twenty percent down carries no insurance at all.
- Confirm the score: the score sets the loan-level adjustments and the insurance premium more than it gates the loan.
- Structure the contract: second homes and multi-unit homes need the buyer’s own funds above the threshold.
Mortgage insurance: how much, and until when
Cancellation on request needs a good payment history, no subordinate liens, and no decline in value; automatic termination needs only that the loan be current. A South San Francisco owner whose home has gained value may also ask the servicer to recognize the current value under its own rules, which is a servicer decision rather than a program right.
The score sets the cost
The decision score comes from the lender’s report, and with multiple borrowers the automated system uses the average of the median scores. On a South San Francisco conventional file the score rarely ends eligibility, but it sets the loan-level adjustments and insurance premium, so a few points can change monthly cost.
Seller contributions and the down payment
Two rules shape the South San Francisco contract: the contribution cap, which falls as the leverage rises, and the source rules for the down payment, which allow a full gift on a one-unit principal residence and require a share of the buyer’s own funds on second homes and multi-unit homes above the threshold.
The appraisal and value acceptance
When the value comes in under the contract price on a South San Francisco file, the loan is sized on the lower figure: the buyer brings the difference, the price is renegotiated, or the contract is released under its appraisal contingency. Condition findings are rarer than on government loans but still appear on older homes.
Second homes, rentals, and financed-property limits
A South San Francisco household can hold several conventional loans at once, but each financed property adds reserves to the next file and the agencies cap the number of financed properties a borrower may have. Second homes and rentals are leveraged lower than a principal residence and priced for the occupancy.
From a South San Francisco pre-approval to keys in hand.
Underneath, the South San Francisco process is any mortgage process; what makes it conventional is the automated finding, the project review where it applies, the leverage by occupancy, and the insurance threshold. Each step below says what happens and what the buyer does.
Pre-approval
Start with the score, the income, the down payment, and the occupancy. A Lendmire loan officer runs the automated system, confirms the leverage and the insurance for the down payment chosen, checks the loan against the conforming limit, compares the structure with FHA and VA on the same numbers, and provides the terms in writing.
Contract and appraisal
With the contract signed, the lender orders the appraisal, or accepts the value the automated system offers where a waiver applies. Seller contributions are checked against the cap for the leverage, and a condominium’s project documents are collected for review before the file moves on.
Underwriting
The underwriter verifies what the automated finding assumed: income, assets and reserves, credit and any seasoning, occupancy, and the property. A manual file follows the lower ratio pair instead. Conditions are issued, documented, and cleared before final approval.
Closing
Closing is where the structure becomes a payment: principal and interest, the insurance while the loan is above the threshold, taxes and insurance. The South San Francisco buyer takes the keys, and the lender delivers the loan to the agency it was written for.
A brokerage that prices the whole market.
Lendmire never lends. It reads a South San Francisco file against conventional, FHA, and VA, matches the program to the profile, and keeps the premium, the cost tier, and the conforming limit in front of the buyer before anything is signed.
Several programs, one set of numbers
A lender with one rate sheet sells that sheet; a brokerage with several can say which fits. For a South San Francisco buyer with a strong score that is usually a conventional loan on the program whose cost is lowest for that file; for a modest score it may be FHA, and the arithmetic decides.
The insurance explained before the offer
The premium and its exit are decided by the leverage and the score, and a buyer should know both before signing a contract. Lendmire states the structure for the South San Francisco purchase, shows the payment before and after cancellation, and explains the request and automatic thresholds.
Licensed, consumer-purpose, in writing
Lendmire is licensed in sixteen states for consumer mortgages, each owner-occupied loan is a consumer-purpose transaction with a full set of disclosures, and every figure a South San Francisco buyer relies on, from leverage to premium to final terms, comes in writing from a licensed loan officer.
Trusted by buyers & families alike.
South San Francisco conventional loan FAQs
What a conventional loan is, how much it takes to buy, what score it needs, how the mortgage insurance works and ends, and how the conforming limit works, answered for South San Francisco buyers.
What is a conventional loan, and who is it for?
Think of it as the mortgage without a federal guaranty or insurance: the agencies set the rules, a private insurer covers the high-leverage slice, and the score sets the price. Principal residences, second homes, and one- to four-unit rentals are all inside it.
How much do I need to put down on a conventional loan in South San Francisco?
The snapshot shows the minimums: one for the first-time buyer, one for everyone else, both on a principal residence. The calculator applies either to a South San Francisco price, and the leverage table gives the figure for second homes and investment property.
What credit score do I need for a conventional loan?
The wholesale programs behind these pages start at the floor shown in the snapshot. Fannie Mae itself sets no minimum score for a loan its automated system approves and a minimum only for manually underwritten loans; what the score mostly does is set the price of the loan and the mortgage insurance, so a South San Francisco buyer above the floor still benefits from every tier gained.
How does private mortgage insurance work, and when does it end?
Three dates matter: the month the balance reaches the request threshold, when the borrower can ask the servicer to drop the premium with a good payment history; the month it reaches the termination threshold, when the servicer must drop it; and the midpoint of the term, the final backstop. Twenty percent down means none of this applies.
What is the conforming loan limit in South San Francisco?
There is a county limit, revised annually, and some counties carry a high-balance range above the standard figure. The loan officer confirms the current limit at pre-approval; above it, the jumbo program takes the file.
Should I choose a conventional loan or FHA?
Choose by profile: conventional for the buyer whose score earns a small, cancellable premium, FHA for the buyer a conventional loan would price heavily. Many South San Francisco buyers start on FHA and refinance into conventional once equity and credit allow.
How does a conventional refinance work?
It depends on the goal: you can change the rate or term with a limited cash-out refinance, or borrow against equity with a cash-out refinance. Each has its own leverage, and a South San Francisco loan officer compares either with a home equity line before recommending one.
What does the appraisal check on a conventional loan?
Value first: the loan is sized on the lesser of the price and the appraised value. Condition second: there is no HUD or VA property standard, but the home must be safe, sound, and marketable, and findings on older homes are settled before closing. Where the automated system offers value acceptance or an appraisal waiver, no appraisal is ordered at all.
Can I use a conventional loan to buy a condominium?
Condominiums are eligible in projects that pass the agencies’ review. Resort projects with rental operations, projects in litigation, and buildings with heavy commercial space are the ones that fail; many established South San Francisco projects pass.
Is a conventional loan assumable?
Rarely. The fixed-rate conforming loan cannot be assumed; a few ARMs can. For a South San Francisco buyer who wants an assumable loan, FHA and VA are the programs that offer one.
Buy in South San Francisco with a low down payment and insurance that ends.
A South San Francisco conventional purchase starts with three questions: the score, the down payment, and the occupancy. Lendmire answers them, prices the programs, and writes up the one that fits.
This guide covers South San Francisco — for the statewide guidelines, markets, and scenarios, see Conventional Loans in California, part of Lendmire’s conventional loan program.
Nearby markets in California: Daly City · San Mateo · Alameda · Oakland · San Leandro · Redwood City · Hayward · Berkeley
Related programs: FHA Loans · Jumbo Loans · Refinance Loans