Island Hideaway Structures

There are three building categories for the Island Sanctuary. They are "Cabin & Fields", "Processing Facilities", and "Landmarks".

Cabin & Fields

Cabins

Building	Unlock Level	Build Time	Island EXP	Materials
Cozy Cabin I	1	None	750	10   Island Palm Log 10   Island Palm Leaf   5   Island Vine   5   Island Stone   5   Island Sand
Cozy Cabin II	4	None	1,755	10   Island Log 10   Island Vine 10   Island Limestone   5   Island Palm Leaf   5   Island Copper Ore
Cozy Cabin III	7	None	2,565	10   Island Log 10   Island Limestone 10   Island Cotton Boll   5   Island Hemp   5   Island Clay

Cropland

Building	Unlock Level	Build Time	Island EXP	Materials
Cropland I	2	None	0	Free
Cropland II	4	2 hours	0	1,000 Seafarer's Cowries
Cropland III	7	4 hours	0	1,500 Seafarer's Cowries

Pastures

Building	Unlock Level	Build Time	Island EXP	Materials
Pasture I	2	None	0	Free
Pasture II	4	2 hours	0	1,000 Seafarer's Cowries
Pasture III	7	4 hours	0	1,500 Seafarer's Cowries

Processing Facilities

Workshops

Building	Unlock Level	Build Time	Island EXP	Materials
Workshop I	3	None (first) 1-2 hours (others)	1,425	10   Island Log 10   Island Palm Leaf 10   Island Limestone   5   Island Vine   5   Island Sand
Workshop II	6	6-7 hours	2,300	15   Island Log 15   Island Limestone 10   Island Hemp   5   Island Clay   5   Island Copper Ore
Workshop III	8	11-12 hours	2,760	15   Island Iron Ore 15   Island Leucogranite 10   Island Log 10   Island Hemp   3   Raw Island Garnet

Granaries

Building	Unlock Level	Build Time	Island EXP	Materials
Granary I	5	1-2 hours	1,425	10   Island Palm Log 10   Island Log 10   Island Clay 10   Island Copper Ore   5   Island Vine
Granary II	6	6-7 hours	2,300	15   Island Palm Log 15   Island Log 10   Island Hemp   5   Island Clay   5   Island Tinsand
Granary III	8	11-12 hours	2,760	15   Island Log 15   Island Iron Ore 10   Island Leucogranite 10   Island Clay   3   Island Spruce Log

Landmarks

Building	Unlock Level	Build Time	Island EXP	Materials
Quixotic Windmill	3	11-12 hours	??	15   Island Log 15   Island Limestone 10   Island Palm Log   5   Island Vine   5   Island Copper Ore
Towering Tree Fort	3	11-12 hours	??	15   Island Palm Log 15   Island Log 10   Island Limestone   5   Islewort   5   Island Vine
Boiling Bathhouse	5	11-12 hours	1,995	15   Island Log 15   Island Log 15   Island Limestone 10   Island Clay 10   Island Palm Leaf   3   Island Clam
Lominsan Lighthouse	9	11-12 hours	??	15   Island Leucogranite 10   Island Hemp 10   Island Log 10   Island Clay   3   Island Silver Ore
Water Otter Fountain	Special	11-12 hours	??	15   Island Leucogranite 15   Island Limestone 15   Island Clay 15   Islewort 15   Island Alyssum

Per u/Sewer-Rat, the follow items are required to unlock the are the following items (from Level 90★★★ Master Recipes; expanded cost includes the doubling):

• 2x   Water Otter Fountain Hardware (BSM/ARM/GSM)
  • 2x   Igneous Glioaether
  • 4x   Bismuth Ore
  • 2x   Phrygian Gold Ore
• 2x   Water Otter Fountain Resin (ALC/CUL)
  • 2x   Aqueous Glioaether
  • 2x   Dynamite Ash
  • 2x   Sideritis Leaves
• 2x   Water Otter Fountain Lumber (CRP/LTW/WVR)
  • 2x   Verdurous Glioaether
  • 2x   Red Pine Log
  • 2x   Snow Flax
  • 2x   Saiga Hide

References

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Island Sanctuary

Animals • Crafting Log • Hideaway Structures • Isleworks Handicrafts
Materials • Produce • Stock Stores • Tools

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Island Hideaway Structures