Move From Planning Approval to a Final San Carlos Inspection Inside One Digital Permit Record
San Carlos changed its entire permit process in June 2025. New building, planning and Public Works applications now go through Tyler Customer Self-Service, and paper plan submittals are no longer accepted.
The practical detail many applicants miss is that the city still requires its signed one-page Building Permit Application as an uploaded attachment. This guide shows how to create the account, prepare the plans, handle soil and wildfire checks, pay fees, answer corrections, schedule inspections and prevent the permit from becoming void.
Choose the San Carlos Task You Need
San Carlos Building Division Phone, Email, Address and Hours
Confirm the Property Is Inside Incorporated San Carlos
Use San Carlos Building when
- The parcel is inside city limits
- The CSS portal recognizes the address
- San Carlos Planning regulates the property
- Prior records use BLD, MEP, PLN or ENC numbers
Verify first when
- The mailing address says San Carlos but the parcel may be unincorporated
- The property is near Belmont, Redwood City or county land
- The portal cannot locate the address
- Old permits were issued by San Mateo County
Use the New San Carlos Permit System Correctly
Create a CSS account
- Open Customer Self-Service.
- Select Login or Register.
- Scroll to Create an Account.
- Verify your email.
- Complete the profile before applying.
Use the same prior email
The city recommends using the email previously used for city projects. This helps connect transferred TrakIt records to the new account.
If a permit is still missing, email the permit number and CSS profile email to the appropriate department.
Link the issued permit
Create the account before asking staff to link a permit.
Email inspections@cityofsancarlos.org with:
- Permit number
- Property address
- CSS account email
Apply for a San Carlos Building Permit in Eight Steps
Check Planning before final construction plans
Planning reviews project size, height, setbacks, use, occupancy, neighborhood impact, protected trees and design requirements.
Confirm soil, WUI and survey requirements
Ask Building whether the parcel is in Soil Hazard Zone A or B, the Wildland-Urban Interface or an area requiring a survey or soils report.
Download the current project checklist
Use the new-home/residential-addition checklist, commercial tenant-improvement checklist or project handout that matches the work.
Complete the one-page Building Permit Application
Provide property, applicant, contractor, license, workers’ compensation, owner-builder and construction-lender information.
Prepare the digital plan package
Paper plans are not accepted for application review. Upload readable, properly scaled PDFs and separate supporting documents clearly.
Create the online application
Select the closest permit type, complete all required fields and upload the signed one-page application under Attachments.
Pay invoices and monitor departmental review
Use the dashboard for invoices, review progress, comments and resubmittals. Do not create another application to answer corrections.
Download the issued permit and stamped plans
The city issues approved permit cards and plans electronically. Print a properly scaled inspection set for the job site.
Complete the One-Page Application Without Leaving a Legal Gap
Application area |
What to enter |
Common mistake |
|---|---|---|
Primary contact |
The person and email that should receive city notices and portal updates |
Using an email nobody monitors during plan review |
Owner and design team |
Owner, tenant, designer, architect or engineer contact information |
Leaving out the professional responsible for corrections |
Contractor |
License class, state license number, company details and city business-license number |
Using an expired license or wrong classification |
Workers’ compensation |
Insurance, self-insurance or applicable no-employee declaration |
Selecting an exemption that does not match the actual workforce |
Owner-builder |
The correct state-law owner-builder basis and owner signature |
Using owner-builder status while an unlicensed person manages the work |
Final certification |
Applicant or authorized agent signature and printed name |
Uploading an unsigned form |
Match the Project to the Correct San Carlos Route
Project |
Start with |
Check before filing |
|---|---|---|
New house or residential addition |
Planning approval + building permit |
Design review, site plan, tree protection, soil zone, survey, WUI, Title 24 and CALGreen |
Kitchen or bathroom remodel |
Building/MEP permit |
Wall changes, structural work, fixture relocation, electrical load, ventilation and energy forms |
Deck or balcony |
Building permit |
Setbacks, height, structural plans, soil, waterproofing and protected trees |
Commercial tenant improvement |
Planning/use check + building permit |
Occupancy, accessibility, Fire, hazardous use, business registration and construction type |
ADU or JADU |
Ministerial ADU review |
Site-specific plan information, pre-approved-plan restrictions, utilities, trees and JADU deed restriction |
Residential rooftop solar |
SolarAPP+ eligibility |
Licensed contractor, system eligibility, battery, service changes and SolarAPP+ approval |
Fire sprinkler or fire alarm |
Digital Fire plan review |
Building permit relationship, system design and Fire Department inspection requirements |
Protected-tree removal or major pruning |
Tree permit |
Tree species, canopy/root impact, arborist report and Tree Protection Plan |
Street, sidewalk or storm-drain connection |
Public Works ENC permit |
Right-of-way, traffic control, trenching, drainage and inspection requirements |
Pool, spa or hot tub |
Building + trade permits |
Barrier, setbacks, grading, bonding, plumbing, equipment and protected-tree impacts |
Build a Reviewable Residential or Commercial Plan Package
Residential plans
- Planning approval
- Scaled site plan
- Existing and proposed floor plans
- Building elevations
- Wall, floor and roof sections
- Door and window information
- Electrical and fixture layouts
- Planning conditions in plan set
Engineering and energy
- Title 24 forms
- CALGreen checklist
- Structural plans
- Structural calculations
- Soils report when required
- Survey plan when required
- Civil plans for reference
- Special-inspection form
Commercial projects
- Existing and proposed use
- Occupancy and construction type
- Accessibility details
- Exit and occupant-load plan
- Fire/life-safety documents
- Mechanical, electrical and plumbing plans
- Energy documents
- Construction-waste documents
Check Soil, Wildfire, Trees and Survey Requirements Before Design Is Finished
2025 code cycle
Prepare new applications under the currently adopted California code cycle and local technical amendments.
Soil Hazard A or B
Zone B is identified by the city as the more restrictive zone. Ask whether a stamped soils report is required.
Wildland interface
Properties south of San Carlos Avenue and west of Alameda de las Pulgas may be within the WUI.
Protected trees
A permit is required to remove a protected tree or prune 25% or more of its canopy or root system.
City design value |
Published value |
How it affects plans |
|---|---|---|
Climate zone |
Zone 3 |
Energy design and Title 24 assumptions |
Seismic design category |
E |
Structural design and detailing |
Basic wind speed |
91 mph |
Structural and component design |
Soil bearing value |
1,500 psf |
Lower assumed values require a soils report |
Building exposure |
B, C or D |
Exposure D is the most severe listed category |
Use the Exact Threshold—Then Check Planning and Right-of-Way Rules
Work |
Published building threshold |
Still verify |
|---|---|---|
Side or rear fence |
Six feet or less |
Front-yard, corner visibility, right-of-way and Planning limits |
Front-yard fence, wall, hedge or screen |
Generally no more than four feet |
Corner sight-distance triangle can limit height to three feet |
Detached shed or greenhouse |
Single story and no more than 120 square feet |
Setback, height, utilities, tree and WUI requirements |
Wood retaining wall |
Three feet or shorter |
Surcharge, slope, drainage, property line and right-of-way |
Concrete or masonry retaining wall |
Less than four feet from footing bottom to wall top |
Surcharge, slope, soil and nearby structure conditions |
Painting and wallpaper |
Generally permit-exempt |
Associated structural, electrical, plumbing or hazardous-material work |
Like-for-like toilet replacement |
City FAQ states permit is generally not required |
Relocation, piping changes or broader bathroom remodel |
San Carlos Plan-Review Turnaround Times
Permit type |
Published estimate |
What can extend it |
|---|---|---|
EV charging installation |
1–2 days |
Service upgrades, trenching or incomplete electrical details |
Kitchen and bathroom remodel |
3–5 days |
Structural changes or missing trade information |
Solar installation |
3–5 days |
Non-SolarAPP+ project, battery or service changes |
Deck |
1–2 weeks |
Soil, setback, structural or tree issues |
Interior remodel |
1–3 weeks |
Complex scope or multi-department review |
Tenant improvement |
2–4 weeks |
Use, accessibility, Fire or hazardous-material review |
Single-story addition |
2–4 weeks |
Planning, soil, tree, survey or Public Works issues |
Second-story addition |
3–5 weeks |
Residential design and structural review |
New single-family residence |
4–6 weeks |
Incomplete plans or unresolved outside review |
New multifamily project |
6–8 weeks |
Project size, corrections and department coordination |
Plan-review recheck |
10 days–2 weeks |
Incomplete responses or additional design changes |
Major Residential Projects Have Separate State-Law Review Milestones
Completeness review
The city’s AB 2234 page identifies a 15-day completeness determination for covered post-entitlement residential permits.
25 units or fewer
The city page identifies a 30-day review period for covered projects of 25 units or fewer.
26 units or more
The city page identifies a 60-day review period for covered projects of 26 units or more.
San Carlos FY 2026–27 Building Fees and Valuation Benchmarks
Construction valuation benchmark |
FY 2026–27 listed value |
How it is used |
|---|---|---|
New residential and additions |
$232 per square foot |
Helps establish permit valuation; it is not the final permit fee |
Interior remodel |
$117 per square foot |
Valuation input for applicable remodeled area |
Garages and accessory structures |
$48 per square foot |
Valuation basis for applicable structure area |
Decks |
$39 per square foot |
Valuation basis before permit and review charges |
Commercial shell |
$57 per square foot |
Used with the city’s valuation-based permit table |
Tenant improvements |
$57 per square foot |
Base valuation; complex uses can have additional trade and Fire fees |
A 400-square-foot residential addition using the city’s $232-per-square-foot benchmark produces an estimated construction valuation of $92,800. Building, plan-check, Planning, energy, green-building, Fire, trade, impact, technology and transaction fees can be added separately.
400 sq ft × $232 = $92,800 estimated valuation
Request, Confirm and Prepare for a San Carlos Building Inspection
Confirm the permit is issued
Inspection options appear for active issued permits. Make sure all required fees and issuance conditions are complete.
Link the permit to your CSS account
If it is missing, email inspections@cityofsancarlos.org with the permit number and CSS account email.
Request the exact inspection in CSS
Open the permit, select the appropriate inspection and submit the request. Staff confirmation places it under My Inspections → Scheduled.
Check the 90-minute window after 8:30 a.m.
Open Today’s Inspections from the portal. Login is not required to view the day’s inspection window.
Keep stamped plans and the permit card on site
The contractor must maintain a paper copy of the stamped, approved, properly scaled plans. Color is recommended but not required.
Read the result before continuing
Do not cover work after a failed or incomplete inspection. Correct every item before requesting reinspection.
Inspection method
The city may use an on-site inspection, virtual inspection, photographs or special-inspection documentation depending on the project.
Reschedule or cancel
Email inspections@cityofsancarlos.org. Include the permit number, address and requested change.
Permit inactivity
The current inspection handout says permits are void 180 days after the last major inspection unless an extension is approved.
Noise Hours Include Deliveries, Setup and Cleanup
Monday–Friday
8:00 AM–5:00 PM
Includes site preparation, cleanup and deliveries.
Saturday
9:00 AM–5:00 PM
Includes site preparation, cleanup and deliveries.
Sunday and listed holidays
No construction allowed
The city lists ten no-construction holidays.
Special San Carlos Permit Routes
ADU or JADU
- Applications are ministerial and do not require a normal discretionary hearing.
- Pre-approved-plan designs still need site-specific information.
- No impact fees are collected for an ADU or JADU under 750 square feet.
- JADUs require a recorded deed restriction.
- ADUs and JADUs cannot be rented for fewer than 30 consecutive days.
SolarAPP+
- Eligible new residential rooftop systems can receive automated approval.
- Submit the project through SolarAPP+ first.
- Complete the city permit process as instructed.
- Ineligible or commercial systems use manual review.
- Manual solar review is published at approximately three to five business days.
Commercial tenant improvement
- Confirm the proposed business use first.
- Prepare the commercial checklist.
- Coordinate accessibility and Fire.
- Obtain an active San Carlos business registration.
- Check hazardous-material, wastewater and PCB requirements where applicable.
What Your CSS Permit Status Means
Search the Portal Before Filing a Public-Records Request
Search the CSS public portal
Use the property address or permit number. Previous TrakIt records were transferred into the new system.
Check every related record
A project may have separate BLD, MEP, PLN, TRE, ENC and Fire records.
Read inspection results
An issued permit is not proof of completed work. Look for final inspection and closure information.
Submit a focused public-record request
Specify the address, approximate year, permit type and exact documents needed. The city states that public-record requests are reviewed and responded to within ten days.
Arrange plan viewing when copies are restricted
Building plans may be viewed by appointment Monday through Thursday from 9:00–11:30 a.m. State law restricts duplication of official professional plans.
Older homes
The city says records may be limited, outdated or incomplete, especially for older houses.
1980 to present
The Building Division states that it generally has more complete residential files for this period.
In-person review
The city states there is no charge to review public records in person at City Hall.
Fix Common San Carlos Permit Problems
Problem |
Likely reason |
Next action |
|---|---|---|
Application remains incomplete |
Signed Building Permit Application or checklist item is missing |
Open Attachments and compare the upload with the project checklist |
Old permit is not in the account |
Profile email does not match the prior city record |
Email the permit number and CSS profile email to inspections@cityofsancarlos.org |
Inspection option is missing |
Permit is not linked, issued or active |
Check permit status and request record linking |
Review comments repeat |
Only selected sheets were corrected or responses are unclear |
Upload a coordinated plan set and numbered response letter |
Permit approved but not issued |
Invoice, contractor document or department condition remains open |
Review every invoice and departmental status in CSS |
Inspection window is not visible |
The morning route has not been posted |
Check Today’s Inspections after 8:30 a.m.; no login is required |
Permit may expire |
No major inspection has occurred within 180 days |
Email Building before the deadline with the delay reason and completion date |
Old unpermitted work affects a sale |
Prior construction lacks a permit or final inspection |
Request permit history and written legalization or closeout requirements |
Ask City Staff a Question They Can Answer Quickly
“I am planning [exact work] at [address]. Does this need Planning approval first, and which Building permit type should I select in Customer Self-Service?”
“Is [address/APN] in Soil Hazard Zone A or B or the Wildland-Urban Interface, and which soils, survey or wildfire documents are required?”
“My CSS profile email is [email]. Please link permit [number] at [address] so I can request and view inspections.”
“Permit [number] still appears open. Which building, trade, Planning, Fire or Public Works final is missing?”
San Carlos Permit Completion Checklist
- City jurisdiction confirmed
- Planning approval completed
- Soil Hazard Zone verified
- WUI applicability checked
- Protected trees identified
- Current project checklist used
- One-page application signed
- Digital plans properly scaled
- Title 24 and CALGreen included
- Contractor license verified
- Portal invoices paid
- Corrections answered in one record
- Permit formally issued
- Stamped plans printed for site
- Construction hours followed
- Inspections requested before concealment
- 180-day activity deadline protected
- Building and related records finaled
San Carlos Building Division at 600 Elm Street
Open the Exact San Carlos Permit Resource
San Carlos Building Permit and Inspection FAQs
Where do I apply for a San Carlos building permit?
Use the City of San Carlos Tyler Customer Self-Service portal. All new applications are submitted online. You must also complete, sign and upload the city’s one-page Building Permit Application.
Does San Carlos accept paper building plans?
No. The Building Division states that new permit applications and plans are processed digitally. After issuance, the contractor must print and maintain a properly scaled copy of the stamped approved plans at the job site.
What is the San Carlos Building Division phone number?
Call 650-802-4261 or email building@cityofsancarlos.org. Include the property address when asking whether a project requires a permit.
How do I schedule a San Carlos building inspection?
Create a Customer Self-Service account and request the inspection from the issued permit. If the permit is not visible, email inspections@cityofsancarlos.org with the permit number and the email used for your CSS profile.
How do I find my inspection arrival time?
Open Today’s Inspections from the top of the permit portal after 8:30 a.m. on the inspection morning. The city posts a 90-minute arrival window, and login is not required to view it.
When does a San Carlos permit become void?
The current inspection handout says a permit becomes void 180 days after the last major inspection. Before the deadline, email Building with the delay reason and anticipated completion date to request an extension.
What are the construction hours in San Carlos?
Construction is allowed Monday through Friday from 8:00 a.m. to 5:00 p.m. and Saturday from 9:00 a.m. to 5:00 p.m. Construction is prohibited on Sundays and listed holidays. The hours include setup, cleanup and deliveries.
Does a small shed require a building permit?
A detached single-story shed or greenhouse may be exempt when it does not exceed 120 square feet. Planning rules for setbacks, height and location still apply, and electrical or plumbing work may require separate permits.
How do I know whether my project is in the WUI or a soil hazard zone?
Email the Building Division with the property address or APN. San Carlos identifies Soil Hazard Zones A and B and states that properties south of San Carlos Avenue and west of Alameda de las Pulgas may be within the Wildland-Urban Interface.
Can I get copies of old San Carlos building plans?
Search the permit portal and submit a public-record request when needed. State law can prevent the city from duplicating professional plans without required permission. Plans may be viewed by appointment at City Hall Monday through Thursday from 9:00 to 11:30 a.m.
Source and Accuracy Note
Building-Department.org is an independent guide and is not the City of San Carlos. Applications, payments, inspections, code decisions, tree permits and approvals must be completed through official city systems.
This guide was checked against the San Carlos Building Division, Building Permits page, June 2025 New Permitting Procedures, Tyler Customer Self-Service portal, current Building Permit Application, April 2026 residential checklist, Inspection Information handout, FY 2026–27 fee schedule, AB 2234 page, ADU guidance, protected-tree resources and Public Records page.
Last reviewed: July 21, 2026.
Forms, fees, portal labels, staff assignments and code interpretations can change. Confirm live requirements before paying, ordering plan sets or beginning construction.
Khushboo Bobade is a public records researcher and editorial writer specializing in government service documentation and construction permit systems.
Her research focuses on explaining building permits, inspection procedures, zoning regulations, and public permit records maintained by local government building departments across the United States.
Professional profile: View LinkedIn Profile
Check Permit Type, Estimate Fees, Prepare Inspections and Find Official Building Department Links
Use this free tool before applying for a building permit, booking an inspection, checking zoning rules, or searching permit records. It helps homeowners, contractors, landlords, buyers, and business owners understand the next step before visiting the official building department portal.
What building department task do you need help with?
Choose your goal. The tool will suggest the right next step, what to prepare, and which official page to check.
Before starting work, check whether your project needs building, zoning, electrical, plumbing, mechanical, right-of-way, or HOA approval.
Many portals require contractor registration, license details, insurance, plans, owner authorization, and inspection scheduling access.
Building Permit Type Finder
Select the project type to understand which permits or reviews are commonly required. Always confirm with the official local building department.
Permit Fee Estimate Calculator
Estimate a rough permit fee using project value and common percentage-based review assumptions. Local minimum fees, technology fees, impact fees, reinspection fees, and trade fees can change the final amount.
Inspection Readiness Checklist
Use this before scheduling framing, electrical, plumbing, mechanical, roofing, final, or certificate-related inspections.
Zoning and Setback Pre-check
Use this before applying for a permit when your project may affect land use, setbacks, lot coverage, height, parking, signs, fences, accessory structures, or business use.
Plan Review Timeline Estimator
Estimate how complex your review may be. Local staffing, incomplete plans, corrections, holidays, fire review, zoning review, and outside agency review can change timing.
Permit Records Search Helper
Use this if you are trying to find old permits, inspection history, certificate of occupancy details, open permits, or code-related records.
Official Building Department Resource Finder
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Building Department vs Planning/Zoning
- Building Department: permits, plan review, inspections, code compliance, certificates.
- Planning/Zoning: land use, setbacks, height, lot coverage, signs, parking, variances.
Best sitewide placement
Place this tool after the first main guide section or before FAQs. It turns a normal article into a practical permit-preparation page.
Important note
This tool gives educational guidance only. Final permit requirements, fees, inspections, forms, and deadlines must be confirmed with the official local building department.