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Mount Washington Way, Clayton, CA Property Records

Contra Costa County property records for 28 addresses on Mount Washington Way, Clayton, CA · Last verified September 2026

Mount Washington Way Highlights

Properties 28
Median Sale Price $1,150,000
Deeds and Mortgages on File 69
Median Price per Sqft $482
Owner Occupied 100%
Median Annual Tax Bill $11,139
Median Year Built 1974
Median Ownership Tenure 10 years

Properties on Mount Washington Way

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

303 Mount Washington Way

4 bd · 2 ba · 2,002 sqft · built 1971 · 0.218 acres

Last Sale Tax Bill Prior Sale Owner Records
$395,000Sep 2001 $7,7152025 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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307 Mount Washington Way

4 bd · 2.5 ba · 2,141 sqft · built 1971 · 0.218 acres

Last Sale Tax Bill Prior Sale Owner Records
$627,000May 2013 $9,8072025 —May 2013 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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316 Mount Washington Way

4 bd · 2.5 ba · 2,619 sqft · built 1971 · 0.253 acres

Last Sale Tax Bill Prior Sale Owner Records
$999,000Aug 2021 $13,0502025 Amount on Record Mar 2012 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

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321 Mount Washington Way

3 bd · 2 ba · 1,600 sqft · built 1971 · 0.301 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,050,000Oct 2021 $12,1322025 Amount on Record Mar 2020 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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325 Mount Washington Way

4 bd · 2.5 ba · 2,141 sqft · built 1971 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$830,000Aug 2017 $11,6962025 Amount on Record Sep 2003 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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327 Mount Washington Way

5 bd · 2.5 ba · 2,619 sqft · built 1971 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,160,000Mar 2026 $13,2162025 Amount on Record Dec 2024 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

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328 Mount Washington Way

4 bd · 2 ba · 2,010 sqft · built 1971 · 0.252 acres

Last Sale Tax Bill Prior Sale Owner Records
$515,000Jul 2011 $8,4922025 Owner on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

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331 Mount Washington Way

4 bd · 2.5 ba · 2,141 sqft · built 1971 · 0.298 acres

Last Sale Tax Bill Prior Sale Owner Records
$765,000Oct 2015 $11,2702025 Amount on Record Nov 2004 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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332 Mount Washington Way

4 bd · 2.5 ba · 2,619 sqft · built 1971 · 0.229 acres

Last Sale Tax Bill Prior Sale Owner Records
$750,000Oct 2018 $10,5082025 2 Owners on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

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335 Mount Washington Way

3 bd · 2 ba · 1,919 sqft · built 1971 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$675,000Nov 2013 $10,5042025 Amount on Record Feb 2009 Owner on Record Owner Occupied AssessorUpdated Jul 2026

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336 Mount Washington Way

4 bd · 2 ba · 1,740 sqft · built 1971 · 0.25 acres

Last Sale Tax Bill Prior Sale Owner Records
$749,000Jun 2016 $11,1392025 Amount on Record Sep 2006 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Jul 2026

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337 Mount Washington Way

4 bd · 3 ba · 1,908 sqft · built 1971 · 0.238 acres

Last Sale Tax Bill Prior Sale Owner Records
$533,500Mar 2004 $2,5962025 Amount on Record Jul 2001 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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339 Mount Washington Way

6 bd · 3 ba · 2,699 sqft · built 1971 · 0.231 acres

Last Sale Tax Bill Prior Sale Owner Records
$475,000Nov 2001 $9,4862025 —Feb 2021 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

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349 Mount Washington Way

4 bd · 2.5 ba · 2,141 sqft · built 1974 · 0.228 acres

Last Sale Tax Bill Prior Sale Owner Records
$5,0102025 —Oct 2008 2 Owners on Record Owner Occupied Assessor + 1 DocumentUpdated Aug 2026

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355 Mount Washington Way

4 bd · 2 ba · 2,076 sqft · built 1974 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$855,000Feb 2019 $11,8772025 Amount on Record Jun 2005 Owner on Record Owner Occupied Assessor + 4 DocumentsUpdated Jul 2026

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356 Mount Washington Way

4 bd · 2 ba · 1,959 sqft · built 1974 · 0.252 acres

Last Sale Tax Bill Prior Sale Owner Records
$73,500Sep 1981 $5,0562025 —Jun 2013 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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359 Mount Washington Way

4 bd · 2 ba · 1,959 sqft · built 1974 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$520,000Jun 2009 $8,6662025 Amount on Record Mar 2005 2 Owners on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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360 Mount Washington Way

4 bd · 2 ba · 1,919 sqft · built 1974 · 0.245 acres

Last Sale Tax Bill Prior Sale Owner Records
$211,000Jun 1988 $5,7292025 —Jun 2002 Owner on Record Owner Occupied AssessorUpdated Jul 2026

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363 Mount Washington Way

3 bd · 2 ba · 1,700 sqft · built 1975 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$889,000Aug 2022 $11,4832025 —Aug 2022 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Sep 2026

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364 Mount Washington Way

4 bd · 2 ba · 1,919 sqft · built 1974 · 0.235 acres

Last Sale Tax Bill Prior Sale Owner Records
$600,000Feb 2008 $10,0482025 Amount on Record Mar 2007 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Sep 2026

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367 Mount Washington Way

4 bd · 3 ba · 4,318 sqft · built 1974 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,555,500May 2026 $12,9122025 Amount on Record Sep 2010 Owner on Record Owner Occupied Assessor + 3 DocumentsUpdated Sep 2026

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368 Mount Washington Way

4 bd · 2.5 ba · 2,619 sqft · built 1974 · 0.235 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,075,000Dec 2020 $14,1122025 Amount on Record Aug 2000 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Aug 2026

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369 Mount Washington Way

5 bd · 4.5 ba · 3,479 sqft · built 1974 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$900,000Sep 2016 $12,9912025 Amount on Record May 2009 Owner on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

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372 Mount Washington Way

5 bd · 3 ba · 2,384 sqft · built 1974 · 0.235 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,150,000Sep 2022 $14,4802025 Amount on Record May 2002 2 Owners on Record Owner Occupied Assessor + 5 DocumentsUpdated Jul 2026

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373 Mount Washington Way

3 bd · 2 ba · 2,135 sqft · built 1975 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$810,000Jun 2017 $11,7262025 Amount on Record Nov 2012 Owner on Record Owner Occupied Assessor + 6 DocumentsUpdated Jul 2026

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376 Mount Washington Way

4 bd · 2 ba · 1,919 sqft · built 1974 · 0.236 acres

Last Sale Tax Bill Prior Sale Owner Records
$4,8622025 2 Owners on Record Owner Occupied AssessorUpdated Jul 2026

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377 Mount Washington Way

4 bd · 2.5 ba · 2,619 sqft · built 1975 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$560,000Jun 2010 $9,2532025 —Oct 2015 Owner on Record Owner Occupied Assessor + 5 DocumentsUpdated Aug 2026

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381 Mount Washington Way

5 bd · 3.5 ba · 2,228 sqft · built 1975 · 0.239 acres

Last Sale Tax Bill Prior Sale Owner Records
$1,275,000Apr 2023 $15,9892025 Amount on Record Nov 1997 2 Owners on Record Owner Occupied Assessor + 3 DocumentsUpdated Sep 2026

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Property Records in Nearby Streets