Sindhudurg Fort is a mix of architectural work. Since this fort was consulted with the many colonialist experts in design and structures of that time present in Mumbai and Goa regions. Finally the Maratha King Shivaji built this fort with his well know architect named the Hiroji Indulkar. He completed its construction within 3 years and employed more than 3000 skilled and semi skilled laborers to build this fortress. This fort is well seated on a rocky island.
Vijaydurg Fort is built in the traditional fort forms found in the ancient times. This fort area was added with more structures by its later conquerors and presently it looks like a complete fort. It occupies 5 acres of shore land surface, surrounded by three sides with silent ocean waters. The water front's nearing its land masses is blocked by strong walls along with sea rocks stones. This fort is made up of laterite stone blocks. Its roofs are covered with stone slabs and with clay tiles.