NE Provenance

604 Elwyn Rd

Portsmouth, NH 03801

residentialSingle Family
Owner
Sym...
Owner Type
Trust
Tenure
1 yr
Assessed
$827,000
Built
1973
Sq Ft
1,390
Lot
0.23 ac
Bed/Bath
3/2
Type
Single Family
Elevated Risks17ConditionC1Fire GradeCPermits18Last PermitOct 2025FloodX

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604 Elwyn Rd, Portsmouth, NH 03801— Property Report

Home& Property Details

604 Elwyn Rd is a Raised Ranch single family built in 1973 located in Portsmouth, Rockingham County, NH. The home has 1,390 square feet of living area on a 0.23-acre lot. The home has 3 bedrooms, 2 bathrooms, 1 half bath across 1 story.

Flood Zone & Natural Hazard Assessment

604 Elwyn Rd is in FEMA flood zone X. Zone X is outside the Special Flood Hazard Area, meaning the property has minimal flood risk according to FEMA mapping. The FEMA National Risk Index composite rating for this area is Relatively Low. The ASCE 7-22 design wind speed for this location is 112 mph. The ground snow load is 50 psf. The EPA radon zone is 1 (highest potential).

Fire Protection

NE Provenance rates the fire protection for 604 Elwyn Rd at Grade C (Adequate fire protection access). The nearest fire station, Portsmouth - Police Station, is 1.9 miles away. This grade reflects fire station proximity, department capabilities, hydrant coverage, and municipal water infrastructure.

Building Permits & Property History

Municipal records show 18 building permits on file for 604 Elwyn Rd. The most recent permit was filed October 4, 2025. In the past five years, 6 permits have been issued. The current municipal assessment is $827,000, with $284,900 attributed to land and $542,100 to improvements. The property last sold on January 7, 2025 for $850,000.

PortsmouthNeighborhood & Community

604 Elwyn Rd is located in Portsmouth, Rockingham County, NH. The property is zoned SRB (Single Residence B). The median home value in this census tract is $513,200. Median household income is $131,578. The owner-occupancy rate in the surrounding area is 50%. The property is served by the Portsmouth school district.

Full Property Intelligence Report

The complete NE Provenance report for 604 Elwyn Rd, Portsmouth, NH includes over 430 data attributes sourced from 140+ public and proprietary datasets. The full report covers building construction and materials, NEP Condition Estimate derived from permit history, system ages for roof, electrical, plumbing, and HVAC, complete ownership and deed chain with transaction classification, FEMA flood and coastal hazard analysis, environmental contamination screening, and neighborhood demographics. Available as a professional property wallet, PDF report, or structured data export.