Translucent object (not cutout)?

I’m trying to make an object translucent without creating the “cutout effect”. This is for an RTS-style game where you can place buildings, the “placeholder” building under the cursor is usually translucent.

All of the transparent shader’s that come with Unity seem to create some sort of cutout effect, or they use the texture as an alpha channel. I would just like to lower the transparency of the whole material without creating “holes”, is this possible?

Use _TintColor alpha value to adjust homogenous transparency and dont use any alpha channel on your main texture.