W Union St, Boise, ID Property Records

Ada County property records for 29 addresses on W Union St, Boise, ID · Last verified October 2026

W Union St Highlights

Properties 29
Median Sale Price $274,200
Deeds and Mortgages on File 34
Median Price per Sqft $309
Owner Occupied 76%
Median Annual Tax Bill $4,204
Median Year Built 1913
Median Ownership Tenure 7 years

Properties on W Union St

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

306 W Union St

2 bd · 1 ba · 816 sqft · built 1910 · 0.05 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,7252025 Owner on Record AssessorUpdated Aug 2026

308 W Union St

2 bd · 1 ba · 728 sqft · built 1910 · 0.083 acres

Last Sale Tax Bill Prior Sale Owner Records
—Oct 2025 $3,3882025 2 Owners on Record AssessorUpdated Aug 2026

310 W Union St

2 bd · 2 ba · 1,198 sqft · built 1900 · 0.08 acres

Last Sale Tax Bill Prior Sale Owner Records
$437,500Jan 2020 $3,1882025 Amount on Record Sep 2018 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Oct 2026

312 W Union St

2 bd · 1 ba · 832 sqft · built 1920 · 0.069 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,3342025 Owner on Record Assessor + 1 DocumentUpdated Aug 2026

314 W Union St

4 bd · 1 ba · 1,547 sqft · built 1920 · 0.089 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,4882025 Owner on Record AssessorUpdated Aug 2026

316 W Union St

3 bd · 1 ba · 1,116 sqft · built 1920 · 0.067 acres

Last Sale Tax Bill Prior Sale Owner Records
$196,900Dec 2014 $4,5882025 Amount on Record Dec 1998 2 Owners on Record Assessor + 1 DocumentUpdated Jun 2026

318 W Union St

3 bd · 2 ba · 1,272 sqft · built 1900 · 0.08 acres

Last Sale Tax Bill Prior Sale Owner Records
$146,900Jul 2013 $4,2042025 Amount on Record Jun 2009 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Oct 2026

320 W Union St

3 bd · 1 ba · 1,056 sqft · built 1895 · 0.119 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,0942025 Owner on Record Owner Occupied AssessorUpdated Aug 2026

400 W Union St

3 bd · 1 ba · 1,104 sqft · built 1913 · 0.08 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,8562025 Owner on Record Owner Occupied AssessorUpdated Aug 2026

402 W Union St

3 bd · 1 ba · 1,200 sqft · built 1895 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$249,800Sep 2015 $3,5572025 Amount on Record Apr 2014 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

408 W Union St

3 bd · 2.5 ba · 2,376 sqft · built 1910 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$370,000Jan 2012 $11,3122025 —Jan 2012 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jun 2026

410 W Union St

3 bd · 2 ba · 1,866 sqft · built 1905 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,2042025 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

411 W Union St

1 bd · 1 ba · 672 sqft · built 1913 · 0.05 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,000Jun 2026 $2,2122025 —May 2015 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Jun 2026

413 W Union St

2 bd · 1 ba · 720 sqft · built 1913 · 0.039 acres

Last Sale Tax Bill Prior Sale Owner Records
—Aug 2019 $2,5582025 Amount on Record Nov 2017 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

415 W Union St

2 bd · 1.5 ba · 654 sqft · built 1913 · 0.05 acres

Last Sale Tax Bill Prior Sale Owner Records
—Dec 2007 $2,5662025 Amount on Record Apr 2007 Owner on Record Owner Occupied AssessorUpdated Jun 2026

417 W Union St

2 bd · 1 ba · 720 sqft · built 1913 · 0.06 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,3952025 Owner on Record Assessor + 4 DocumentsUpdated Aug 2026

419 W Union St

2 bd · 1 ba · 720 sqft · built 1913 · 0.03 acres

Last Sale Tax Bill Prior Sale Owner Records
$274,200Feb 2021 $2,9572025 Amount on Record Jul 2018 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jun 2026

502 W Union St

4 bd · 3 ba · 2,551 sqft · built 1939 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,5842025 Owner on Record Owner Occupied AssessorUpdated Aug 2026

519 W Union St

4 bd · 2 ba · 1,882 sqft · built 1909 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$102,600Jul 2020 $5,7272025 Amount on Record Oct 2016 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2026

521 W Union St

4 bd · 2.5 ba · 2,246 sqft · built 1910 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$384,500Apr 2012 $6,9312025 Amount on Record Nov 2001 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

610 W Union St

4 bd · 2 ba · 2,402 sqft · built 1933 · 0.082 acres

Last Sale Tax Bill Prior Sale Owner Records
—May 2012 $6,0102025 2 Owners on Record Assessor + 2 DocumentsUpdated Aug 2026

614 W Union St

1 bd · 2 ba · 884 sqft · built 1938 · 0.062 acres

Last Sale Tax Bill Prior Sale Owner Records
$3,0142025 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

619 W Union St

4 bd · 3 ba · 2,189 sqft · built 1936 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
—Jan 2026 $4,7242025 —May 2017 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

702 W Union St

4 bd · 2 ba · 1,976 sqft · built 1922 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$611,800Jul 2024 $4,9602025 Amount on Record Feb 2021 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

703 W Union St

3 bd · 1 ba · 2,009 sqft · built 1937 · 0.21 acres

Last Sale Tax Bill Prior Sale Owner Records
$150,000Jul 1998 $6,9882025 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

706 W Union St

3 bd · 2 ba · 1,878 sqft · built 1925 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$798,000Feb 2026 $6,6392025 Amount on Record Aug 2021 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Oct 2026

708 W Union St

3 bd · 3 ba · 1,667 sqft · built 1910 · 0.11 acres

Last Sale Tax Bill Prior Sale Owner Records
$6,1502025 Owner on Record Owner Occupied AssessorUpdated Aug 2026

709 W Union St

2 bd · 2 ba · 1,956 sqft · built 1935 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$330,000Jun 2007 $5,1782025 Amount on Record Apr 2000 2 Owners on Record Owner Occupied AssessorUpdated Jun 2026

711 W Union St

3 bd · 3 ba · 1,920 sqft · built 1936 · 0.067 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,3442025 2 Owners on Record Owner Occupied AssessorUpdated Aug 2026

Property Records in Nearby Streets