The 'Colony Condo' Purple Martin House | Birds Choice Coates Original 4-Floor 16-Room Aluminum Habitat

The Experience

Sixteen rooms across four floors. For the Purple Martin landlord who has moved beyond starter colonies and into serious, long-term stewardship, this is the nesting box that matches that commitment. The Coates Original 16-Room represents the full expression of an aluminum purple martin house design that has defined the industry for over four decades — maximum colony capacity in a lightweight, pole-mount structure engineered for the landlord who raises and lowers, monitors, manages, and shows up every season without fail. This is not an entry-level purchase. It is a declaration of intent.

Scientific Engineering

• Aluminum Construction: Aluminum is the material of choice for purple martin housing — cooler than plastic in peak summer temperatures, structurally superior to wood, and fully impervious to rot, warping, and weather degradation across decades of seasonal use.
• Reflective Roof: Engineered with a reflective surface that attracts Purple Martin scouts during spring arrival — a passive recruitment feature that measurably increases first-season and year-over-year colony establishment rates.
• Ventilated Roof System: Roof ventilation maintains interior thermal regulation during peak nesting season, reducing heat stress on nestlings during critical development windows across all four floors.
• Hinged Access Doors: All 16 rooms feature hinged doors for direct nest monitoring, parasite management, and end-of-season cleanout — the non-negotiable baseline for responsible colony stewardship at scale.
• Porch Dividers: Integrated dividers prevent male porch domination across all four floors, reducing inter-colony aggression and supporting stable multi-pair occupancy throughout the full breeding season.
• Guard Rails: Perimeter guard rails on every floor protect fledglings from premature departure during the critical pre-fledge period — especially important at maximum colony density.
• Door Plugs Included: Season-end door plugs allow the landlord to close and secure all 16 rooms during the off-season, deterring house sparrows, European starlings, and other cavity-nesting competitors.
• Stainless Steel Hardware: All exterior fasteners are stainless steel, ensuring structural integrity through freeze-thaw cycles and prolonged outdoor exposure.

Boutique & Conservation Values

• Maximum Colony Capacity: At 16 rooms across four floors, this is the flagship Coates Original configuration — purpose-built for the landlord running a serious, multi-year Purple Martin conservation program.
• Lightweight Pole-Mount Design: Despite its 16-room capacity, all-aluminum construction keeps the assembled house manageable for solo raising and lowering — essential at this room count during nest checks, weather events, and seasonal transitions.
• Four-Decade Pedigree: The Coates Original wasn't designed by committee — it was designed by a martin landlord, refined through real-world colony management, and has remained the industry benchmark for over 40 years.
• Heritage Manufacturing: Proudly Made in the USA.

Specifications

• Assembled Dimensions: 14" L x 19" W x 26" H
• Floors: 4
• Room Count: 16
• Room Dimensions: 6" L x 6" W x 5.125" H per room
• Entrance Hole Type: Round
• Material: Aluminum, Stainless Steel
• Mount Type: Pole (pole sold separately)
• Estimated Shipping Weight: 13 lbs.
• Country of Origin: Proudly Made in the USA
• ⚠️ Assembly Required