Seagate Development Group LLC is poised to begin construction of its Captiva and Sanibel furnished model residences at Hill Tide Estates, a 9.98-acre gated enclave on the southern tip of Boca Grande. Pricing for the models will be determined after construction commences. Six floor plans are now included in the Fort Myers-based developer’s Hill Tide Estates offering. Designed by Rich Guzman at RG …