31 North River Drive, Portland
technical data · neighborhood and transit
Quick answers
- Is 31 North River Drive in a flood zone?
- Yes. FEMA maps it in Zone AE, a high-risk flood area. Federally backed lenders require flood insurance.
- What is the 2026 conforming loan limit in Multnomah County?
- $832,750 for a single-unit home, per FHFA. Larger loans are jumbo loans.
- What natural disasters is 31 North River Drive at risk for?
- FEMA's National Risk Index rates the area very high overall, with elevated earthquake and inland flooding risk.
Safety and environment
FEMA natural hazard risk
Very High
Highest for this area: earthquake, inland flooding. These drive insurance cost here.
FEMA National Risk Index, census tract
Nearest active fault
3.4 mi
East Bank fault, slip rate less than 0.2 mm/yr. Ask about seismic retrofit and earthquake insurance.
USGS Quaternary Fault Database
FEMA flood zone
Zone AE
Special Flood Hazard Area: a 1% or higher chance of flooding each year. Lenders backed by federal programs require flood insurance here. Ask for the elevation certificate and an insurance quote before you commit.
FEMA National Flood Hazard Layer (FIRM)
Superfund site
4,250 ft
Harbor Oil (Deleted NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
2 within 1,650 ft
Nearest: Arco Ss #4475, 1305 N Hayden Island Dr (1,000 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Wildfire risk
Very Low
Wildfire risk is low enough that standard home insurance usually covers it.
FEMA National Risk Index
Nearest public schools
5,200 ft
Clark County Juvenile Detention School (5,200 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
4.5 mi
Portland International (PDX). Homes this close can sit inside the 65 dB DNL noise contour. Visit at peak hours and check the airport's noise map.
FAA large-hub airports
Conforming loan limit 2026
$832,750
Multnomah County. Mortgages up to this amount qualify for Fannie Mae and Freddie Mac pricing. Above it, the loan is a jumbo with stricter terms.
FHFA Conforming Loan Limit Values, one-unit
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More on North River Drive
All addressesViewing recommendations
What's worth checking in person before deciding.
- This is a house, not an apartment. Check the lot boundaries, car access, and how water drains from the yard after rain, including whether the neighboring lot sits higher and could send water toward the property.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- Check the condition of the fence, yard, and sidewalk out front: who is responsible for upkeep, and whether there are any boundary disputes with neighbors.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- Check exactly where you'd park: a spot in the yard or garage, or street parking, and how crowded the street gets in the evening.
- Check the sewer connection (public network or septic tank) and the water source (public network or well), including pressure and water quality.
- Schedule a viewing in the evening too, on a weekday, to see street traffic, streetlights, and how quiet the neighborhood is after 8 PM.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.