去年我建了所房子用英文怎么说

"I built a house last year" 的英文表达是 "I constructed a house last year"。

来源：
"Build" 和 "construct" 都有建造的意思，但是 "construct" 更专业一些。

一些例句：

I built a house on the outskirts of town last year.
(我去年在城郊建了一栋房子)
I constructed a new home for my family last year.
(我去年为我的家人建造了一所新房子)
I built a small cottage in the woods last summer.
(我去年夏天在森林里建了一座小屋)
I constructed a building for my business last year.
(我去年为我的生意建造了一栋建筑)