If you are looking to build a recently abandoned house, leave most of the furniture in it and objects strewn around. Mig has a great set of modern household items like a microwave, computer, refrigerator, desk chair, etc. Some of the WWII-era couches and bedroom furniture sets can still be used too. Other items can be scratched.
For one that has been abandoned a while, most of the usable items would be looted and gone. It would be pretty bare except for broken furniture and debris. I would leave some loose rags/fabric, pulled down drapes, and maybe a few items like pictures, books, etc. strewn about.
Some exaples or warzone abandoned, modern houses:
![](../../../archaeography.com/photoblog/archives/Lourido.jpg)
![](../../../www.designyourway.net/diverse/abandoned/Abandoned_House_by_Vonjuntz.jpg)
![](../../../image.shutterstock.com/display_pic_with_logo/79647/79647,1212828498,4/stock-photo-inside-abandoned-house-view-on-messy-bed-and-window-grunge-scene-13471363.jpg)
![](https://t3.gstatic.com/images?q=tbn:ANd9GcTm2t_VW2SkeuHI2PCrVBMSJ_cBxMTcsHrXn_YJndzXnOLdfq4&t=1&usg=__-TGIvPtDOR0PPUP8BqPBA3RjbC8=)
![](https://t3.gstatic.com/images?q=tbn:ANd9GcQOI0uYLB-7mZuFZeMfnc9jLMNt92KagD-Rtt6mNsVHaS3zsTk&t=1&usg=__kkn0D_Mq10zLzEjrdCJn7H38ZAE=)
Hope that helps. Good luck.