Eagle Zoning Guide

Agricultural (A) and Agricultural-Residential (A-R) zones permit single-family residential development on large lots with agricultural uses. Minimum lot size: 1 acre (A), 2.5 acres (A-R). Maximum structure footprint including all accessory structures: 10% of total lot area.

Investor implication: The 10% footprint cap is the dominant constraint on A and A-R parcels. On a 5-acre A-R lot, total structure footprint (primary + ADU + detached garage + shop) cannot exceed 21,780 sq ft. Verify footprint calculations before acquisition — over-improvement is not correctable post-close.

Estate Residential (R-E) zone permits single-family residential development on large lots. Minimum lot size: 20,000 sq ft. Minimum lot width: 100 feet. Front setback: 25 feet. Side setback: 10 feet. Rear setback: 25 feet. Maximum height: 35 feet.

Investor implication: R-E is Eagle's primary large-lot subdivision zone. 20,000 sq ft minimum lot size produces lower density than Meridian or Boise R-1 zones but commands premium pricing. North Eagle and portions of South Eagle concentrate R-E inventory.

R-1 (Low Density): minimum 10,000 sq ft lot, 80-foot width. R-2 (Medium Density): minimum 7,500 sq ft lot, 70-foot width. R-4 (Medium-High Density): minimum 6,000 sq ft lot, 60-foot width. Standard setbacks: 20-foot front, 5-foot side, 20-foot rear. Maximum height: 30 feet (R-1, R-2), 35 feet (R-4).

Investor implication: R-1 and R-2 zones dominate South Eagle's established subdivisions. R-4 is limited in Eagle compared to Meridian or Boise. Lot-size minimums are larger than Boise's R-1C (5,000 sq ft) — Eagle's density floor is structurally higher-priced.

C-1 (Neighborhood Commercial): retail, office, service uses. Front setback: 15 feet; side setback: 5 feet; rear setback: 20 feet; maximum height: 35 feet. C-2 (General Commercial): broader commercial uses including automotive, warehousing. Front setback: 20 feet; side setback: 10 feet; rear setback: 25 feet; maximum height: 45 feet. MU (Mixed-Use): residential above ground-floor commercial, primarily along State Street corridor. Front setback: 0–10 feet (build-to line); side setback: 0 feet (party wall allowed); rear setback: 10 feet; maximum height: 50 feet (3–4 stories).

Investor implication: MU zone concentrates along State Street in Downtown Eagle. Small-format mixed-use is the highest-conviction infill play in Eagle. C-1 and C-2 parcels are limited; most commercial activity is within the urban renewal district.

Foothills Overlay District applies to hillside areas north of Beacon Light Road. Additional restrictions on slope development, erosion control, and structure placement. Slope analysis required for all development. Maximum slope for development: 25% without special engineering. Ridgeline protection standards apply.

Investor implication: Foothills overlay is the dominant entitlement constraint on Eagle's highest-IRR land plays. Slope analysis, geotechnical reports, and erosion-control plans extend entitlement timelines by 12-24 months. Budget for engineering scope before acquisition. View premiums are material but carry risk is real.