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Property profile & analytics
OFF-MARKET
Office buildings
4100 Guardian St Simi Valley, CA 93063-6717
Entity Owned
Absentee Owner
~
Est. High Equity
Property ID
US10-1632733
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1998
Total area
13,585 SF
Lot
8.28 ac (360,676 SF)
Zoning code
BP-S
APN
626-0-052-065
UPID
US10-1632733
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
Partners General Insurance Agency Insurance Agency
-
OLGA LYASS Physician
-
Computerized Management Services Medical Clinic
-
Johnson Controls Inc Corporate Office
-
XYPRO Technology Corporation (Bike/Boat/Book/etc) Store Corporate Office
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
by Request
Blend (final)
Blend
by Request
Owner & transaction history
Tlus Chi Guardian Owner LLC
Tlus Chi Guardian Owner LLC
since 2026
Last sale
$17.9M
7 recorded transactions
Zoning & alternative use
BP-S · Simi Valley, CA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs Simi Valley submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Simi Valley submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
CAP Approach
Comparable Approach
Alternative Use
Get a detailed, property-specific estimation — fast and free
Price per SF
Sale + rent benchmarks
Subject property
—
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2023Property tax & assessments
Tax year 2023
Tax billed
$257,984
Tax year 2023
Assessed value
$24,119,700
Assessed 2024
Previous assessed
$24,119,700
+0.0% YoY
Effective rate
1.07%
On assessed value
Assessed land
$5,679,191
Assessed improvement
$18,440,509
Applied tax rate
9.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
1998
Heating
NONE
Total area
13,585 SF
Lot
8.28 ac (360,676 SF)
Zoning code
BP-S
APN
626-0-052-065
UPID
US10-1632733
Jurisdiction
VENTURA
Zoning & alternative use
BP-S · Simi Valley, CA
Zoning BP-S · permitted uses
BP-S · Simi Valley, CA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Simi Valley. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1998
Heating
NONE
Lot
8.28 ac
Current owner
From public records · entity-resolved
Tlus Chi Guardian Owner LLC
Entity
Mailing address
4180 GUARDIAN ST, CALABASAS, CA 91302
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2026
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
11 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jan 12, 2026
$17,916,000
Tlus Chi Guardian Owner LLC
Dunn Simi LP
Grant Deed
$33,453,000 · Canadian Imperial Bank Of Commerce
Mar 29, 2024
$1,138,500
L A Dirt LLC
Guardian Paradise LLC
Grant Deed
—
May 5, 2023
—
Dunn Simi LP
—
Deed
related
$1,500,000 · Sunwest Bank
Jun 29, 2005
—
Simi Dunn
Dunn Richard & E Trust
Quit Claim Deed
—
May 31, 2005
—
Grandpadick Partners
Grandpadick Partners
Quit Claim Deed
related
—
May 25, 2005
—
Napa Holdings LLC
Dunn Joseph & Eleanor Trust
Grant Deed
—
May 6, 2005
—
Dunn Richard & Eleanor Trust
Dunn Richard & E Trust
Quit Claim Deed
related
—
Aug 4, 2003
—
Dunn,tr
Prudential Insurance Co
Grant Deed
related
—
Jun 1, 1998
$3,036,000
Wohl Venture Five LLC
Heritage Oak Partners
Grant Deed
$14,940,000 · Bank One Arizona
Feb 1, 1996
$2,150,000
Bank Of California Natl Assn
Lcf Income Grp
Trustees Deed
related
—
—
—
Simi LP Dunn
—
Deed Of Trust
related
$8,200,000 · Guardian Life Insurance Co
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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