1. Home
  2. Michigan
  3. Washtenaw County
  4. Ann Arbor
  5. Koch Ave

320 Koch Ave, Ann Arbor, MI 48103 Property Records

Washtenaw County property record for 320 Koch Ave, Ann Arbor, MI 48103

Property Summary

Property TypeCommercial
Details4,248 sqft · built 1958
Lot Size0.152 acres (6,621 sqft)
OwnerCompany Name on File
Last Sale$950,000 (Jul 2020)
Tax Bill$25,180 (2025)
Deeds & MortgagesAug 2020 Transfer
Jul 2020 Sale
Flood ZoneZone X (minimal risk)
APN09-09-29-335-005

Property Details

APN / Parcel Number

Primary APN09-09-29-335-005
Alternative APN
  • 0929335005

Interior

Units6 Units
Building Area4,248 sqft Building Perimeter

Exterior

Year BuiltBuilt 1958
Effective Year BuiltEffective 1958
Lot Area6,621 sqft (0.152 acres)
Lot Dimensions83 ft deep x 80 ft wide

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Street Address320 KOCH AVE
CityANN ARBOR
StateMI
Zip48103-5446
Property CategoryCommercial
Property TypeCommercial > Retail
Local Zoning CodeR4B
Legal DescriptionLOT 15 & 16 JOHN KOCHS SUBDIVISION
Legal Range06E
Legal Township02S
Legal Section29
Legal SubdivisionJOHN KOCHS SUBDIVISION
Legal Block335
Legal Lot Number15-16
JurisdictionWASHTENAW MI
Township / Civil DivisionANN ARBOR
Census Block Group4
Census Block4013
Census Tract400600

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Historic DistrictWithin the Old West Side Historic District
listed 1972 · 1,300 contributing resources · NRIS 72000661

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

320 Koch Ave, a commercial property, is owned by a company that bought it in July 2020.

Source: Washtenaw County records, as of August 17, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of RecordCompany Name on File
Mailing Address22217 HILLSIDE DR, NORTHVILLE, MI 48167-9145
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

DateDocument
Aug 13, 2020Quit Claim Deed, Transfer
NOT AVAILABLE
Jul 28, 2020Warranty Deed, Transfer
AMERICAN TITLE COMPANY, AMERICAN TITLE CO/WASHTENAW

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJul 28, 2020 · Amount on File
Deed SaleJul 28, 2020 · Amount on File
Prior SaleMar 29, 2007 · Amount on File
Deed Document Number20206533448
Deed Book / Page5366 / 667
Prior Transfer DateJul 17, 2020
Prior Transfer Doc0006536596
Record UpdatedSep 20, 2026

August 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionWASHTENAW MI
Recording DateAug 13, 2020
Property Address320 KOCH AVE, ANN ARBOR, MI 48103-5446
Document Number0006536596
Book / Page005369 / 000817
Instrument DateJul 17, 2020
Instrument6536596
Transaction TypeTransfer
Record UpdatedOct 15, 2020
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address10500 MORNING LIGHT CT SOUTH LYON MI 481788043, SOUTH LYON, MI 48178-8043

July 2020: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionWASHTENAW MI
Recording DateJul 28, 2020
Property Address320 KOCH AVE, ANN ARBOR, MI 48103-5446
Document Number0006533448
Book / Page005366 / 000667
Instrument DateJul 17, 2020
Instrument6533448
Transaction TypeTransfer
Record UpdatedOct 13, 2020
Title CompanyAMERICAN TITLE COMPANY, AMERICAN TITLE CO/WASHTENAW

Transaction

AmountAmount on Record
Tax$1,045.00
Amount AccuracyConfirmed
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address10500 MORNING LIGHT CT SOUTH LYON MI 481788043, SOUTH LYON, MI 48178-8043

Tax Assessment & Valuation

The 2025 property tax bill for 320 Koch Ave was $25,180.

Source: Washtenaw County assessment roll, as of August 17, 2026

Property Jurisdictions

TypeName
StateMichigan
MunicipalityAnn Arbor City
CountyWashtenaw County
Unified School DistrictAnn Arbor Public Schools (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$409,000$818,000
2025$25,180.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 320 Koch Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective May 21, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies1 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 320 Koch Ave is low, with less than a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 99.1% of the US · lower than 98.4% of Michigan
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemANN ARBOR
serves 123,851 people · EPA ID MI0000220
Water SourceSurface water
Last State InspectionOct 2025
Lead2 ppb (2021–2023)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting1
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 718 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Verizon
Fixed Wireless		1,000 / 75
T-Mobile
Fixed Wireless		100 / 20
AT&T
DSL · Fiber, Fixed Wireless in parts of the area		100 / 20

May also be available: 123.NET.

Nearby Properties on Koch Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures