Haven't done a render in quite a while. Downloaded this medevil house form TF3DM and it motivated me do something.
I don't know how legit these are but the link below looks like the house is from the same set.
But the textures are in higher resolution like 1024x1024 , then the house in your image.
Would be much better if you can use these textures on your house.
http://www.cgtrader.com/3d-models/architectural-exterior/historic/free-medieval-buildings-sample-model
This site wants you to sign up unfortunately. But it is a very easy and fast step.
Agreed.