300 E Rock Rd, New Haven, CT 06511 Property Records

New Haven City property record for 300 E Rock Rd, New Haven, CT 06511

Property Summary

Property TypePublic School (Administration, Campus, Dorms, Instruction)
Details9 bd · 6 ba · 10,340 sqft · built 1890
Lot Size1.39 acres (60,950 sqft)
OwnerCompany Name on Record
Flood ZoneZone X (minimal risk)
APN251 0509 00300

Property Details

APN / Parcel Number

Primary APN251 0509 00300
Alternative APN
  • NHVN M:251 B:0509 L:00300

Interior

Bedrooms9 Beds
Full Baths6 Baths
Total Rooms22 Rooms
Units12 Units
Stories3 Stories
Building Area10,340 sqft Total Area
Gross Area16,067 sqft
1st Floor Area4,352 sqft
Basement Area3,176 sqft
Unfinished Basement3,176 sqft

Exterior

Year BuiltBuilt 1890
Effective Year BuiltEffective 1890
Exterior MaterialBrick
Construction TypeMasonry / Concrete Block
Roof TypeGable
Roof MaterialSlate
Lot Area60,950 sqft (1.39 acres)

Utilities, Heating & Cooling

Heating SystemForced Air with A/C
Heating FuelOil

Location & Zoning

Account Number251 0509 00300
Street Address300 E ROCK RD
CityNEW HAVEN
StateCT
Zip06511-1231
Property CategoryPublic Works
Property TypePublic Works > Public School (Administration, Campus, Dorms, Instruction)
Local Zoning CodeRS2
Legal Block509
Legal Lot Number300
JurisdictionNEW HAVEN CT
Township / Civil DivisionNEW HAVEN
Census Block Group2
Census Block2008
Census Tract141800

Historic Designation

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

Historic DistrictWithin the Prospect Hill Historic District
listed 1979 · 238 contributing resources · NRIS 79002670

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

Owner

Source: New Haven City records, as of October 20, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordCompany Name on Record
Mailing Address700 PROSPECT ST, NEW HAVEN, CT 06511-1224
Owner TypeCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Record UpdatedOct 29, 2026

Tax Assessment & Valuation

Source: New Haven City assessment roll, as of September 25, 2026

Property Jurisdictions

TypeName
StateConnecticut
County Subdivision / MunicipalityNew Haven City
Unified School DistrictNew Haven School District (PK - 12)

Tax Bill & Assessment History

YearAssessed ValueAssessed Market Value
2026$1,239,700 (-) Land $246,400 Building $993,300
2025$1,239,700 (-) Land $246,400 Building $993,300$1,771,000 Land $352,000 Building $1,419,000
2023$1,239,700 (-) Land $246,400 Building $993,300
2022$1,239,700 Land $246,400 Building $993,300

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective January 25, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

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 99% of Connecticut
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 SystemREGIONAL WATER AUTHORITY
serves 418,900 people · EPA ID CT0930011
Water SourceSurface water
Last State InspectionJun 2024
LeadUnder 1 ppb (2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 396 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Frontier
Fiber
7,000 / 7,000
GoNetspeed
Fiber
2,000 / 2,000
Xfinity
Cable
2,000 / 250
AT&T
Fixed Wireless
100 / 20

May also be available: T-Mobile, Verizon.

Nearby Properties on E Rock Rd

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