Items counted as buildings for Builder's Achievement are:
1 - warehouse
12 - houses (Wooden, Stone, Brick, & Premium, 3 of each)
3 - engineering modules
3 - sawmills
3 - production facilities
3 - workshops
3 - converters
3 - incubators
1 - sonar
3 - dig sites
3 - water wells
3 - restorers
2 - stone quarries - original one didn't count
3 - clay quarries
3 - smelteries
3 - furnaces
3 - carpenter’s shops
4 - rat traps
1 - field kitchen
3 - chem labs
1 - hypercomp
3 - autoclaves
1 - golden dragon
2 - apple pie ovens
1 - tech table
1 - glass furnace
5 - windmills
5 - solar panels
2 - lighthouses
1 - megusta idol
1 - Foundry
1 - Distillation Unit
1 - Weaving Loom
2 - Zoo Laboratories
2 - Replicator
This adds up to 92 buildings as of 10/20172 - Zoo Laboratories
2 - Replicator
Items NOT counted as buildings for achievement are:
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3 - veggie patches
1 - original stone quarry
4 - fishing nets
5 - lanterns
5 - torches
5 - bouys
5 - traps (on pole)
5 - breakwaters
3 - subs
5 - lounge chairs