Prospect Ave, New Haven, CT Property Records

New Haven City property records for 24 addresses on Prospect Ave, New Haven, CT · Last verified July 2026

Prospect Ave Highlights

Properties 24
Median Sale Price $200,000
Deeds and Mortgages on File 19
Median Price per Sqft $145
Owner Occupied 58%
Median Annual Tax Bill $5,017
Median Year Built 1989
Median Ownership Tenure 13 years

Properties on Prospect Ave

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

286 Prospect Ave

3 bd · 1 ba · 1,096 sqft · built 1957 · 0.23 acres

Last Sale Tax Bill Prior Sale Owner Records
$115,000Jul 2009 $5,6242025 Amount on Record Feb 2005 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

289 Prospect Ave

3 bd · 1.5 ba · 1,358 sqft · built 1900 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$212,300Apr 2006 $6,1482025 1 Name on Record AssessorUpdated Jul 2026

292 Prospect Ave

2 bd · 1 ba · 816 sqft · built 1960 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$140,000Jun 2011 $4,7272025 Amount on Record Dec 1995 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

295 Prospect Ave

5 bd · 3 ba · 3,322 sqft · built 1900 · 0.18 acres

Last Sale Tax Bill Prior Sale Owner Records
$295,500Jul 2004 $9,0082025 Amount on Record Jan 2002 1 Name on Record AssessorUpdated Jul 2026

298 Prospect Ave

3 bd · 1 ba · 1,348 sqft · built 1900 · 0.15 acres

Last Sale Tax Bill Prior Sale Owner Records
$167,000Oct 2004 $5,5382025 1 Name on Record AssessorUpdated Jul 2026

301 Prospect Ave

3 bd · 1.5 ba · 1,348 sqft · built 1900 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$190,000May 2021 $5,6432025 Amount on Record Jun 2014 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

304 Prospect Ave

3 bd · 2.5 ba · 1,345 sqft · built 2006 · 0.139 acres

Last Sale Tax Bill Prior Sale Owner Records
$224,000Nov 2013 $7,6842025 Amount on Record Apr 2009 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

307 Prospect Ave

5 bd · 2.5 ba · 1,713 sqft · built 1900 · 0.16 acres

Last Sale Tax Bill Prior Sale Owner Records
$236,900Nov 2006 $5,9212025 Amount on Record Nov 2004 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

315 Prospect Ave

4 bd · 3 ba · 2,836 sqft · built 1900 · 0.169 acres

Last Sale Tax Bill Prior Sale Owner Records
$370,000Dec 2025 $7,5542025 Amount on Record Feb 2018 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

319 Prospect Ave

4 bd · 2 ba · 2,200 sqft · built 1900 · 0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$82,000Mar 1992 $6,5172025 Amount on Record Jun 1990 2 Names on Record Assessor + 1 DocumentUpdated Jul 2026

325 Prospect Ave

2 bd · 1.5 ba · 1,309 sqft · built 1900 · 0.13 acres

Last Sale Tax Bill Prior Sale Owner Records
$99,000May 2011 $5,6012025 Amount on Record Sep 2010 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

326 Prospect Ave

2 bd · 1.5 ba · 1,108 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$67,000Nov 2000 $4,7712025 1 Name on Record AssessorUpdated Jul 2026

328 Prospect Ave

2 bd · 1.5 ba · 1,109 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$158,000Feb 2022 $4,6612025 Amount on Record May 2019 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

329 Prospect Ave

5 bd · 3 ba · 2,376 sqft · built 1987 · 0.1 acres

Last Sale Tax Bill Prior Sale Owner Records
$345,000Apr 2021 $8,4312025 Amount on Record May 2001 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

330 Prospect Ave

2 bd · 1.5 ba · 1,108 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$175,000Dec 2023 $4,7712025 Amount on Record May 2014 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

332 Prospect Ave

2 bd · 1.5 ba · 1,240 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$150,000May 2022 $5,0172025 Amount on Record Nov 2016 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jul 2026

334 Prospect Ave

2 bd · 1.5 ba · 1,084 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$206,000Apr 2026 $4,7052025 Amount on Record Jun 2008 1 Name on Record Assessor + 1 DocumentUpdated Jul 2026

336 Prospect Ave

2 bd · 1.5 ba · 1,097 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$127,000Jul 2004 $4,7412025 2 Names on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

338 Prospect Ave

2 bd · 1.5 ba · 1,118 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$200,000Jul 2025 $4,7992025 —Nov 2018 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

340 Prospect Ave

2 bd · 1.5 ba · 1,120 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$190,000Feb 2006 $4,8042025 Amount on Record Jul 2004 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

342 Prospect Ave

2 bd · 1.5 ba · 1,124 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$80,000Oct 2013 $4,8152025 Amount on Record Oct 2003 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

344 Prospect Ave

2 bd · 1.5 ba · 1,124 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$63,000May 2000 $4,8152025 1 Name on Record Owner Occupied AssessorUpdated Jul 2026

346 Prospect Ave

2 bd · 1.5 ba · 1,121 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$210,000Sep 2025 $4,8072025 Amount on Record Jul 2005 1 Name on Record Assessor + 2 DocumentsUpdated Jul 2026

348 Prospect Ave

4 bd · 2 ba · 1,125 sqft · built 1989

Last Sale Tax Bill Prior Sale Owner Records
$125,000Oct 2020 $4,7712025 Amount on Record Jun 2002 1 Name on Record Owner Occupied Assessor + 1 DocumentUpdated Jul 2026

Wildfire Risk on Prospect Ave

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Property Records in Nearby Streets