Bought a lot and then built a house, short term or long term capital gain?

[yystone]

1/31/2020 bought a land for 100k

We started to build a house from early 2021 to mid 2021 with a total cost of $200k

Sold the house on July 2021 for $350k

Is the 50k gain a long term or short term capital gain or mixed? If it is mixed, how to separate them?

Thanks.

[yystone]

anyone know this?

[Hal_Al]

I don't "know' it, but my opinion is that it is all a long term gain.  I know, for example, that if you make improvements to your home in the year you sell it, you add that improvement cost to your total (long term) basis.