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San Jose code violations: the complete homeowner guide

Published Jul 14, 2026 · Updated Sep 28, 2026 · Silicon Valley Building Service and Repair

San Jose Code Enforcement handles several kinds of private-property issues, including construction without required permits, zoning, property maintenance, and substandard housing. The right response depends on the document you received and the condition the City actually found. A complaint description in the City's case lookup is an allegation, not necessarily a confirmed violation.

This guide separates construction cases from issues that usually need a different specialist or a homeowner cleanup. It is general information, not legal advice. For a letter in hand, start with our notice guide.

FIRST CHECKS

Read the document type, case number, listed conditions, and deadlines.
Search permit history at SJPermits.org if construction is involved.
Ask the assigned inspector which findings and correction path apply.
Use a contractor for construction assessment, permits, corrections, and inspections where needed.

HAVE A NOTICE FROM THE CITY?

Tell us what the notice says and what was built. Our first conversation is free and helps identify the records and assessment needed. The City decides the requirements and when the case closes.

Discuss my code case Text us a photo of the notice Call (408) 667-4946

David and Tristan, the owners, stay involved from the first walkthrough to the final check. We reply the same business day, Monday to Friday.

How code enforcement works in San Jose

The City uses several enforcement tools, including warnings, inspection notices, citations, and compliance orders. It also runs the FAST program for proactive exterior inspections in selected areas, with its own notification and citation process. Do not assume every case follows one fixed sequence or deadline. Use the dates on your document and speak with the assigned inspector. If the document is already an administrative citation, the City's hearing page gives separate 30-day and 15-day deadlines. Our citations and appeals guide explains the distinction.

The types of San Jose code violations at a glance

Violation type	Common examples	Typical fix
Unpermitted construction (Title 24, Building Code)	Additions, garage conversions, decks, water heater or HVAC swaps, electrical and plumbing work, moved walls, all without permits	Check records, obtain required permits, complete City-directed corrections and inspections
Zoning (Title 20)	Illegal dwelling units, setback encroachments, over-height fences, uses not allowed in the zone, too many units on a lot	Legalize through the correct permit or approval, sometimes as an ADU, or remove or modify the condition
Property maintenance and blight (Chapter 17.72)	Overgrown weeds, junk or furniture in view of the street, inoperable vehicles, graffiti, commercial vehicle storage	Clean up, remove, screen, or repair by the deadline on the document
Substandard housing (Chapter 17.20, Housing Code)	No hot water or heat, faulty wiring, leaks, mold, vermin, unsafe conditions in a rental	Repair to code on the city-ordered timeline
Other (grading, trees, short-term rentals, signs)	Grading without a permit, protected tree removal, short-term rental rule violations, illegal signs	Varies; confirm requirements with the city department involved

Here is the quick-reference version. Each family is covered in detail below.

Unpermitted construction and building code violations (Title 24)

For construction work, San Jose says any change to a structural, electrical, plumbing, or mechanical system needs a permit and an inspection. That covers the obvious projects, additions, garage conversions, decks, patios and patio covers, and moving or removing walls. It also covers the small jobs people are surprised by: swapping a water heater, replacing a furnace or adding air conditioning, running new electrical circuits, upgrading a panel, installing an EV charger, and relocating plumbing.

Read the detail

Work done without those permits is what the city calls illegally constructed work, no matter how well it was built or who built it. The City can issue a $1,000 citation for it, but a property owner who cooperates and moves toward fixing the problem, what the city calls voluntary compliance, may avoid that citation entirely. Two things do not help: time and a sale. Unpermitted work does not become legal because it has been there for twenty years, and it does not become legal because you bought the house that way. Homeowners who want to check on their own property can call Code Enforcement at (408) 535-7770 or email CodeEnforcementInformation@sanjoseca.gov.

How it gets resolved: the path is legalization. That may mean documenting what exists, obtaining a permit, making work accessible for inspection, completing City-directed corrections, and passing final inspection. Eligible pre-2020 ADUs and JADUs have a separate AB 2533 safety-focused path. Structural changes can also pull in the city's updated seismic review requirements, which we covered in our post on San Jose's 2026 seismic review for remodels. This whole family is our core wheelhouse: see our step-by-step guide to legalizing an unpermitted addition in San Jose and our overview of how remodeling permits work.

Zoning violations (Title 20)

Zoning violations are about what exists on the lot and how it is used, rather than how it was built. Title 20 of the municipal code sets the rules for each zoning district, and the common violations look like this: a garage or a back room rented out as a separate home without approval (an illegal dwelling unit), a structure built into a required setback, a fence or wall taller than the allowed height, a business operating in a residential zone, or more units on a lot than the zoning permits.

Read the detail

An unpermitted unit may qualify for an ADU or JADU legalization path. San Jose has a separate AB 2533 program for qualifying units built or converted before January 1, 2020. Eligibility and required corrections depend on the property and City review. Start with our pages on ADUs and additions and the differences between a room addition and an ADU in San Jose.

How it gets resolved: either legalize the condition through the correct permit or approval when the zoning allows it, or remove or modify whatever does not comply. A too-tall fence gets lowered or permitted, an encroaching structure gets moved, cut back, or approved through the applicable process, and an illegal unit either becomes a legal ADU or stops being a separate dwelling. Zoning cases often overlap with building code cases, because the illegal unit was usually also built without permits, so the two fixes typically run together.

Property maintenance and blight (Chapter 17.72)

Chapter 17.72 of the municipal code, the Community Preservation ordinance, declares blight a public nuisance and gives the city its cleanup authority. This is the family most often caught by FAST inspectors driving the city's designated focus areas, photographing conditions visible from the street and mailing citations. Common violations include:

Overgrown weeds and vegetation.
Junk, debris, or furniture in a yard and visible from the street for more than 72 hours.
Inoperable or non-working vehicles parked or stored where they are visible from the street. Ask Code Enforcement for the exact rule that applies to your case.
Graffiti left on the property.
Commercial vehicle storage in residential areas.
Missing front-yard landscaping on multifamily properties.

Read the detail

The City's FAST FAQ says property owners who receive a FAST exterior citation have 10 days from issuance to correct the condition before reinspection. Other documents can have different deadlines, so read the one you received.

How it gets resolved: honestly, most blight items are homeowner cleanup, not a contractor job. Haul the junk, mow the weeds, move or remove the vehicle, paint out the graffiti, and you are usually done. Where we do come in is when the fix involves actual construction: building or repairing a fence to screen storage, repairing a deteriorated structure the city has flagged, or exterior repairs on a property that has slid into disrepair. If it needs a permit and a crew, that is our side of the line.

Substandard housing and habitability (Chapter 17.20)

Chapter 17.20 is San Jose's Housing Code, and this family is mostly a landlord issue. Under California law, rental housing must be habitable. Civil Code 1941.1 lists the minimums, including weather protection, working plumbing with hot and cold running water, heating, safe electrical wiring, and floors, stairways and railings in good repair. When a rental falls below that line, code enforcement can order repairs on a set timeline, and the citations land on the property owner.

Read the detail

Typical violations include no hot water, a dead furnace, hazardous or overloaded wiring, roof and plumbing leaks, mold, pest infestations, and structural conditions that make a unit unsafe to occupy.

How it gets resolved: repair to code, usually on the city's schedule rather than yours. This is construction work, and it is work we do: plumbing and water heater replacement, electrical corrections, heating repairs and replacement, roof and weatherproofing repairs, and the tear-out and rebuild that follows a mold or moisture problem. One honest caveat: habitability cases often come bundled with landlord-tenant disputes, rent issues, or relocation questions, and none of that is contractor territory. We fix the building. For legal questions about the tenancy itself, talk to an attorney.

Other violations worth knowing about

A few smaller categories round out the picture. Grading and drainage work, moving significant amounts of soil or changing how water drains across a lot, needs its own permit, and unpermitted grading is enforceable just like unpermitted building. Tree removal is regulated too: San Jose protects certain trees by size and type, and removing a protected tree without a permit can draw a violation and replacement requirements. Short-term rental rules limit how residential property can be offered on platforms like Airbnb, and operating outside those rules is a code case. And signs, especially for home businesses and small commercial properties, have their own permit and size rules. Each of these has specifics that change over time, so check with the city directly for current requirements.

Stop work orders and red tags

Two notices get their own guides: a stop work order, which halts construction, and a red tag, which can mean a building is unsafe to use. For a garage converted without a permit, see the four ways to resolve an unpermitted garage conversion. Which code editions apply and what is exempt from a permit are covered in the San José building code guide. All of our guides are listed on the San José code compliance page.

What happens if you do not respond

The City can use citations and other remedies when a case is not resolved, but the outcome depends on the violation and process. Bulletin #202 says San Jose may issue a $1,000 citation for unpermitted construction and that voluntary compliance may avoid one. In certain cases, the Appeals Hearing Board can order compliance, recover City costs, and impose civil penalties. A notice does not automatically create a daily fine or a property lien. Read our citations and appeals guide for the separate deadlines.

CONSTRUCTION HELP If your document concerns construction, call or text (408) 667-4946 or describe the issue. We review the notice and permit history before pricing a defined scope.

CHECKLIST Print our one-page first-48-hours checklist to organize the document, records, and inspector questions.

How to look up code violations for a San Jose address

The City lets anyone search active and closed Code Enforcement cases from the past two years, by address or case number, through its online inquiry form or an interactive map of open and closed cases. Results show the case status, the assigned inspector, the inspector's supervisor, the council district and the case number. The complaint description is what the reporting party alleged, not necessarily a confirmed violation. Search cases on the City's site. For permit history, search the address at SJPermits.org.

Permit history

Permit history for a San Jose address can be searched at SJPermits.org. If you received a notice, it carries the case number and deadlines; ask the assigned inspector about the findings before pricing a fix. If you are buying or selling, see selling a San Jose home with a code violation.

Outside San Jose, each city sets its own charge for unpermitted work; see the penalty rules by city. For an unpermitted living unit built before 2020, see our guide to California's ADU amnesty.

How Silicon Valley Building Service and Repair helps

For the construction and permit families, unpermitted work, buildable zoning fixes like ADU conversions, and ordered habitability repairs, we run the whole path to a closed case:

Assess the flagged work. We inspect what the city cited, figure out what is actually there, and tell you what legalization or repair will realistically involve before you commit to anything.
Handle drawings and engineering. We produce or coordinate the as-built drawings and structural engineering the permit will need.
Pull the retroactive permits. We prepare and shepherd the permit applications so the file the city sees is complete and consistent with the enforcement case.
Complete required corrections. We scope and perform the construction the City requires for the applicable permit path.
Schedule inspections through closure. We book and attend inspections and respond to construction correction lists. The City determines when the case closes.

And the honest scope note: we are a licensed general contractor (CSLB #1050108), not an attorney or a code consultant. Landlord-tenant disputes, hearings strategy, and legal questions belong with a lawyer, and most blight items are a cleanup weekend, not a construction contract. But when the fix is building work and permits, that is exactly what we do all day. You can see how we run a project on our process page, or get in touch to talk through your notice.

Common questions

How do I find out if there is a violation or permit issue on my property?

Start with the permit history. San Jose's online permit records show what was ever permitted at an address, and a gap between the records and the house you can see, such as a finished garage or an extra bathroom with no permit behind it, is the usual red flag. For open code enforcement cases, contact San Jose Code Enforcement at (408) 535-7770 or CodeEnforcementInformation@sanjoseca.gov. A title report will also surface any Notice of Violation recorded against the property.

Can I just leave unpermitted work alone?

San Jose says the passage of time or a change of ownership does not legalize work done without required permits. Search the permit record first, then ask the City which path applies to the work.

Will fixing a violation trigger more required upgrades?

Sometimes. The City decides which standards and corrections apply. Eligible pre-2020 ADUs and JADUs have a separate AB 2533 safety-focused path. For other work, ask the inspector and permit staff what is required before assuming the full correction scope.

How long does it take to resolve a code violation in San Jose?

There is no single reliable timeline. It depends on the violation, permit history, City review, construction corrections, and inspections. Follow the deadline on your document and ask the assigned inspector about the path for your case.

Do you handle the permits and inspections for me?

Yes, that is the core of what we do. Silicon Valley Building Service and Repair assesses the flagged work, prepares or coordinates the as-built drawings and any engineering, pulls the retroactive permits, corrects the work to current code, and schedules and attends the city inspections through the required construction inspections.

Sources

Dealing with a City notice?

Call or text (408) 667-4946. We do the construction side of compliance. CSLB #1050108.

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