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Site Risk Report

2650 N Campbell Ave, Tucson, AZ 85719

Generated March 11, 202632.2549, -110.9438

32
Moderate

Moderate Risk Site

Minor soil adjustments needed — budget 3-8% above standard for site prep.

C
43
Construction
Soil & Foundation
Moderate
O
15
Occupancy
Zoning & ADU
Low
P
55
Protection
Fire Services
Elevated
E
13
Exposure
Flood/Fire/Seismic
Low
ADU Eligible Site

Prefab Gap Coverage Available

This site scores 43/100 for soil risk and 13/100 for exposure. Protect your margin with installation gap coverage — covers the window between delivery and certificate of occupancy when standard builders risk doesn’t apply.

Detailed Analysis

O
Occupancy — Zoning & ADU

ADU Eligible

Arizona state law (HB 2720/HB 2928) requires ADUs to be allowed by right statewide. Specific local requirements may apply — check with your local building department.

Jurisdiction
Pima
Max ADUs
1
Max ADU Size
1,000 sq ft
Legislation
HB 2720 (2024) / HB 2928 (2025)
Owner Occupancy
Not Required

What This Means for Your Build

  • This site is ADU eligible — up to 1 unit, max 1,000 sq ft each
  • Budget $2,000-5,000 for permits and plan review in Pima
  • Timeline: plan review typically 4-8 weeks in Pima

Permit Checklist — Pima

!
Site plan showing ADU placement and setbacksRequired
!
Building permit applicationRequired

Check with local jurisdiction

!
Construction documents (structural, MEP)Required
!
Utility connection planRequired

Parcel Information

County
Maricopa

C
Construction — Soil Analysis

43/100

Mohave soils and urban land, 1 to 8 percent slopes. Moderate caliche — budget for potential excavation challenges.

Soil Type
Mohave
Caliche
Moderate
Shrink-Swell
Low
Excavation
Moderate
Foundation Risk
Moderate
Drainage
Well drained
Steel Corrosion
Moderate
Concrete Corrosion
Low
Depth to Bedrock
8 inches

Cost Impact: 3-8% above standard

What This Means for Your Build

  • Budget 8-15% extra for foundation reinforcement — thickened slab edges or pier supports
  • Corrosive soil — use epoxy-coated rebar and corrosion-resistant fasteners

E
Exposure — Flood Zone

Zone X

Minimal flood hazard area — outside the 500-year floodplain

Risk Level
Minimal
Insurance Required
No

Insurance Estimate: Not required — optional coverage ~$400-600/yr

What This Means for Your Build

  • Minimal flood risk — no additional flood-related budget needed
  • Standard drainage and grading practices are sufficient
  • Flood insurance is optional but recommended for any property

Exposure — Wildfire Risk

Very Low

No wildfire risk to structures at this location. The site is in a developed area where wildfire risk to buildings is negligible.

Risk Index
0.000

Defensible Space

Standard landscaping practices sufficient for this risk level.

Exposure — Seismic Hazard

Moderate

Moderate seismic risk (PGA 0.118g). Seismic detailing required per IBC. Anchor bolts, hold-downs, and shear walls must meet Seismic Design Category C requirements. Budget 2-5% above standard for structural reinforcement.

Peak Ground Acceleration
0.118g
Seismic Design Category
C
Hazard Level
Moderate

What This Means for Your Build

  • Budget 3-8% extra for seismic strapping and bracing upgrades
  • Standard Arizona residential seismic detailing applies
  • Ensure foundation anchor bolts meet Seismic Design Category C

Protection — Fire Services

PC 7

Limited fire protection (estimated PC 7). Insurance rates may be higher due to distance from fire services. Consider fire-resistant construction materials.

Nearest Fire Station
0.8 miles
Station Name
Tucson Fire Department Station 5
Hydrant Nearby
No

Next Steps

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Disclaimer: This report uses publicly available data from government sources (Census, USDA, FEMA, USFS, USGS) and is intended as a preliminary site assessment tool. It does not replace a professional geotechnical investigation, Phase I environmental assessment, or formal survey. Risk scores are estimates based on available data. Consult licensed professionals before making construction or investment decisions. Data accuracy depends on source agency update schedules.