Question 1

How do I submit a permit application in San Mateo?

Accepted Answer

Through the city's Customer Self-Service portal. You register once, then submit building permits and planning applications digitally and track them from the same place. For most remodels the calendar depends more on how complete your first submittal is than on the city's internal speed.

Question 2

I own a period home in Baywood. What should I expect?

Accepted Answer

Two projects running at once — the remodel you want, and a century of systems work behind it. Knob-and-tube wiring, corroded galvanized supply lines, and a foundation predating any seismic requirement are all typical. We price those separately from the visible work, because on a house of this age the invisible half is often the larger number.

Question 3

Should I replace original casement windows?

Accepted Answer

Repair them if they can be repaired. Original steel or wood casements are a large part of what a period San Mateo home is worth, and stock replacements read as wrong from the street. Where replacement is genuinely necessary, it is worth paying for units that match the original proportions and divisions rather than the cheapest compliant option.

Question 4

Can I build a detached ADU in San Mateo?

Accepted Answer

It depends on the lot more than the neighborhood name. The older neighborhoods have deep parcels that take a detached unit comfortably; the post-war tracts are tighter and often work better with a garage conversion or attached unit. State law requires ministerial review within 60 days for designs meeting objective standards.

Question 5

Does my 1950s San Mateo house need an electrical upgrade?

Accepted Answer

Frequently, and it is usually the gating item for a kitchen remodel rather than an optional extra. Panels sized for a 1950s household do not carry a modern kitchen's appliance load, and adding EV charging makes that worse. If walls are already open, upgrading the service at the same time is much cheaper than returning for it.