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Does Your Property Qualify for a Lot Split?

California Senate Bill 9

Screen your property and request a consultation in minutes

Screen Your Property

Answer 12 quick yes/no questions covering every SB9 disqualifying factor — zoning, hazard zones, demolition rules, and more.

Pin Your Lot

Enter your address and see your parcel on an interactive map. We use the location to understand slope, size, and jurisdiction.

Get a Consultation

Submit your inquiry and one of our SB9 specialists will review your screening results and contact you to discuss next steps.

SB9 Eligibility & Project Inquiry Form

Fields marked * are required. Screening questions are optional but help us identify issues before your consultation.

Your Contact Information

Full Name *

Email Address *

Project Location

Project Address *

Verify the pin is on the correct parcel before submitting. Open in OpenStreetMap

Jurisdiction (City or County) * Enter the incorporated city or unincorporated county that governs the parcel.

Site Characteristics

Slope Severity *

▭ Flat 0–5% grade ↗ Gentle 5–15% grade ↗↗ Steep >15% grade ? Not sure We’ll assess

Approximate Lot Size (sq ft) *

sq ft

Eligibility Screening

Answer the questions below so we can flag any potential SB9 eligibility issues before your consultation. All questions are optional — your inquiry will be submitted regardless.

Is the parcel currently zoned for single-family residential use?

Yes No Not sure

Is the property in a designated historic district or is the building a historic landmark?

Yes No Not sure

Is the property within a FEMA Special Flood Hazard Area (100-year floodplain)? Check FEMA map

Yes No Not sure

Is the property within an Alquist-Priolo Earthquake Fault Zone? Check state map

Yes No Not sure

Is the property in a state-designated Very High Fire Hazard Severity Zone (VHFHSZ)? Check OSFM FHSZ map

Yes No Not sure

Is the property on a hazardous waste site or known contaminated land (Cortese List)?

Yes No Not sure

Do you plan to demolish all or part of the existing structure?

Yes No

Has any unit been rented or leased in the past 3 years?

Yes No

Will more than 25% of the existing exterior structural walls be demolished?

Yes No Not sure

In the past 15 years, has any tenant been evicted via an Ellis Act or no-fault eviction?

Yes No Not sure

Is any existing unit deed-restricted as affordable or below-market-rate housing?

Yes No

Do you intend to occupy one of the resulting units as your primary residence for at least 3 years?

Yes No N/A (non-profit / CLT)

Subdivision Goals

Describe how you'd like to subdivide the lot *

0/1000 characters

Read SB9 Overview

About ZEM Engineers

Specializing in civil engineering and land development, we bring over 50 years of combined experience to deliver innovative solutions for residential and commercial projects throughout the Bay Area.

Contact Information

39116 Fremont Hub #1045
Fremont, CA 94538
(510) 513-7795
[email protected]
www.zemengineers.com