Sidewalk requirements for infill lots are triggered at building permit issuance by municipal code, not at property purchase. Cities including Portland, Bend, and Seattle require full frontage sidewalk installation as a condition of building permits. Costs range from $5,000 to $20,000 depending on lot frontage width and existing curb and gutter conditions.
A land survey establishes legal property boundaries by referencing recorded plats, monuments, and deed descriptions. Boundary surveys cost $500 to $1,500 for standard residential lots. Without a survey, buyers risk accepting encroachments, easements, or disputed boundaries that cost $15,000 or more to resolve after purchase. Fences rarely align with legal property lines.
Buying land for home construction requires verifying zoning, utility access, topography, soil drainage, and permit requirements before committing to purchase. In the Pacific Northwest, raw land parcels frequently require $20,000 to $80,000 in site preparation costs — grading, utility extensions, and access improvements — that appear nowhere in listing descriptions.
Wildland urban interface designations apply when residential development borders fire-prone vegetation. Pacific Northwest WUI zones require fire-resistive construction, defensible space of 30 to 100 feet, and fire access roads meeting IFC 503 standards. Properties inside WUI boundaries face stricter insurance requirements, higher build costs, and mandatory sprinkler systems in many jurisdictions.
