No mod.
You will feel warm in this house even if it's winter outside. Though it looks like an orange cake.
You can do all kinds of things without stepping out, like swimming and gardening. There are four fireplaces to keep you warm.
It also has a basement to make nectar and collections (gems etc.), and a nursery.
World adventures, Ambitions(few), Fast Lane Stuff(few), Late Night, Outdoor Living Stuff, Generations, Town Life Stuff(few), Master Suite Stuff(few), Showtime, Supernatural, Seasons, 70's, 80's, 90's Stuff(few), Island Paradise, Into the Future(few) are used.
The greenhouse has floor, so your sim won't get debuff in it, but you need planters or [moveObjects on] to grow plants. you can use the SwiftGro Gardening Station to water them.

• Price Unfurnished: 101019
• Price Furnished: 186320
• Furnished: Fully
• Decorated: Throughout
• Bedrooms: 3
• Bathrooms: 3½
• Stories: 3
• Lot Size (z): 20

Expansion packs: World adventures,High End Loft Stuff,Ambitions,Fast Lane Stuff,Late Night,Outdoor Living Stuff,Generations,Town Life Stuff,Pets,Master Suite Stuff,Showtime,Katy Perry's Sweet Treats,Diesal Stuff,Supernatural,Seasons,University,Island Paradise,Movie Stuff,Into the Future