The permit question runs through everything
A century of housing stock means a century of work done to it, and not all of that work went through the city. Converted garages, enclosed porches, back units built at some point by someone, a basement that became a studio.
For a lender this is the difference between income that counts and income that does not.
- Permitted and reflected in the appraisal. The income is generally countable and the space adds to value. This is the clean case.
- Permitted but not separately valued. Often still countable, though it depends on how the appraiser wrote it up.
- Unpermitted. The income usually cannot be used and the square footage may not count. On some programs it becomes a condition requiring cure before funding.
- Unpermitted and occupied. The hardest version, because now there is a tenant in a space the lender will not recognize.
If a listing mentions a bonus space, a studio, a guest quarters or income potential, pull the permit history before your contingencies expire. Not after. A property whose numbers only work with the back unit income is a different property if that income cannot be counted.
Owner-occupied small multifamily, which is the real opportunity
A two to four unit property you live in is financed as a primary residence, not as an investment. That is a genuinely significant distinction and more people should know it.
It means primary residence terms, access to low down payment programs including FHA, and rental income from the other units generally usable toward qualifying. You get investment property economics on owner-occupied financing terms.
North Park has the stock to make this work, and it is the most realistic path I know of to a first investment property in coastal California. The tradeoff is that you have to actually live there, and being a landlord in the same building is a real job that people underestimate.
The rule of thumb worth knowing is that the property must be a legal two to four unit. Two units where the second is an unpermitted conversion is a single family home with a problem, not a duplex, and it finances accordingly.
Building an ADU rather than buying one
Deep lots with alley access make North Park well suited to new accessory construction, and the financing question is how you fund it.
A HELOC drawn in stages is usually the most efficient route if you have equity. You pay interest only on what you have drawn, which matters because these projects run longer than planned and financing the entire budget from day one means paying for money you are not using yet.
A renovation loan makes sense when you are building at the time of purchase. Short-term private money is the right answer only when the property will not finance conventionally in current condition, and it needs a documented exit before you sign anything.
The version that goes badly is starting construction on the assumption that you will refinance against the finished value later. Confirm you would qualify for that refinance today, at today's guidelines, before you commit to the project.
Older homes and which loan you use
Original electrical, galvanized supply lines, foundation work of uncertain provenance. Conventional appraisals are considerably more tolerant of this than people expect. FHA and VA appraisals apply property standards that a conventional appraisal does not, so peeling paint on a pre-1978 house or a non-functioning system can become a condition to resolve before closing.
That does not make FHA the wrong product here, and for a first purchase it is frequently the right one. It means walking the property with those standards in mind and raising anything questionable in week one instead of week three.
North Park Mortgage FAQ
Can I count income from the back unit?
If it is permitted and the appraiser accounts for it, usually yes. If it is an unpermitted conversion, generally no, and on some programs it becomes a condition that has to be cured before funding. This single question changes the numbers on a lot of North Park properties, so pull the permit history before your contingencies expire rather than trusting the listing description.
Can I buy a duplex with a low down payment?
Yes, if you live in one of the units. A two to four unit property you occupy is financed as a primary residence, which opens up low down payment programs including FHA, and rental income from the other units can generally be used toward qualifying. It is the most realistic path to a first investment property in this part of California.
What if the second unit is not permitted?
Then it is a single family home with an unpermitted structure, not a duplex, and it finances that way. You lose the rental income for qualifying purposes and the multifamily loan treatment. Some buyers proceed anyway and legalize later, which is a legitimate plan, but you have to be able to qualify without that income today.
How should I finance building an ADU?
If you have equity, a HELOC drawn in stages is usually the most efficient, because you pay interest only on what you have actually drawn and these projects reliably run longer than planned. If you are building at the time of purchase, a renovation loan folds it into the acquisition. What I would avoid is starting on the assumption you can refinance against the finished value later without confirming you would qualify for that refinance now.
Is FHA a problem on a 1920s house?
Not usually, but FHA appraisals apply minimum property standards a conventional appraisal does not. Peeling paint on pre-1978 construction, an inoperable water heater or an obviously failing roof can become conditions requiring correction before closing. On an as-is sale that is a negotiation, and it goes much better raised early.
Does a DSCR loan work for a North Park rental?
It can, and small multifamily clears the ratio more easily than single family because you are buying multiple income streams against one set of fixed costs. The ratio is calculated on in-place rent, so pull the actual rent roll rather than modeling market rents. If the numbers do not clear at twenty percent down, the usual answer is more money down rather than a different lender.