New Construction Projects in Big Pine Key, Florida

Project 1: Monroe County Scattered Sites – Big Pine Key (Workforce Housing)

• Developer: Monroe County / Monroe County Housing Authority
• Location: Scattered sites including 31535 Avenue C and surrounding areas, Big Pine Key, FL 33043 (former trailer park sites destroyed by Hurricane Irma)
• Type: Residential (workforce/affordable single-family rental homes)
• Units/Size: 10 units (primarily 1-bedroom/1-bath, with some 2-bedroom)
• Status: Recently Completed
• Expected Completion: 2024–2025 (celebrated as completed in 2026 reports)
• Description: Elevated, code-compliant rental units for low- and extremely low-income working households, funded primarily by Federal CDBG-DR grants. Rents range from approximately $400 to $1,900; part of a split project with 10 additional units on Conch Key.[1]

Project 2: Seahorse Cottages at Big Pine Key / The Avenues

• Developer: Florida Keys Community Land Trust / Rural Neighborhoods (with Marino Construction Group as general contractor)
• Location: Former Seahorse RV Park (26 units) plus scattered sites in the Avenues neighborhood, Big Pine Key, FL
• Type: Residential (affordable workforce rental cottages)
• Units/Size: 31 units (all 2-bedroom single-family style cottages; some 1-bath, some 2-bath)
• Status: Recently Completed
• Expected Completion: 2023 (initial certificates of occupancy around September 2023; fully occupied by early 2025)
• Description: Hurricane-resilient, elevated modular homes built on sites impacted by Hurricane Irma, targeting households earning up to 80% AMI (with some ELI set-asides). Financed with CDBG-DR funds; all units currently rented with a waitlist.[2]

Project 3: College of the Florida Keys (CFK) Big Pine Key Campus Expansion

• Developer: College of the Florida Keys
• Location: Former Big Pine Key prison grounds (specific address references point to areas near Key Deer Blvd / 450 Key Deer Blvd vicinity), Big Pine Key, FL
• Type: Educational / Mixed-use (workforce training campus)
• Units/Size: Not specified (campus facilities including marine aquaculture, construction apprenticeships, CDL training, law enforcement vehicle training, and community spaces)
• Status: Announced / Pre-construction
• Expected Completion: Limited public information available (planning and environmental review ongoing as of early 2026; $2M HUD grant awarded in 2023)
• Description: Repurposing of the former prison site for workforce education and training programs to support local economic needs while addressing environmental concerns near Key deer habitat.[3]

No other significant named residential, condo, townhome, mixed-use, or commercial new construction projects were identified in verifiable sources for Big Pine Key as of September 2026. Scattered individual new single-family home builds appear on real estate listings but do not constitute larger-scale projects. Infrastructure work (e.g., road grates, park amenities) exists but falls outside the primary focus on residential/mixed-use developments.