Who is the builder of the house in Buddhism?

Anekajatisamsaram sandhavissam anibbisam

gahakarakam gavesanto dukkha jati punappunam.

Gahakaraka! Ditthosi, puna geham na kahasi

sabba te phasuka bhagga gahakutam 

visankhatamvisankharagatam cittam tanhanam khayamajjhaga.

Verse 153 of the Dhammapada

I have wandered through countless births, seeking the builder of this house, not knowing where he was. Because of this, I have suffered birth again and again. House-builder, you are seen! You will not build another house for me. All your rafters are broken, your ridgepole is shattered. My mind has reached the Unconditioned, the end of craving has been attained.