Hello All
I am new to Blender
As the title said rendered and materials are too bright , it is impossible to continue
Can you please help
thank you in advance 
Welcome 
…
i do not completely understand what you mean here… both are too bright ??
The material preview and the rendered preview do differ… yes… that’s also the reason why the have different names… 
Also: What’s impossible ?? You have to adjust the lighting for your scene… that’s the usual process… for everyone…
I f you can elaborate the specific problem you have then i’m sure there are plenty of user who are eager to help.
Did you created a material for it?
Check your lightsource for rendering is not disabled.
Thank you for your responses
I am sorry, maybe my terminology isn’t enough “blenderish” yet 
here is my solid preview
but in rendered and material preview i don’t see any windows , roof or other accessories.
How do i adjust lightning for the scene
how do i do that?
Material Properties → Material add (the plus sign)
or maybe also (if needed) and Add → Light → … and then select one…
the selected light can be changes under Object Properties → Light
There is also Help → Manual and Help → Tutorial which will open you browser and show you additional info…