1. Cooking smells wafted up from downstairs.

2. We went downstairs from the kitchen to the cellar.

3. Rosie ran downstairs to answer the door.

4. Denise went downstairs and made some tea.

5. Please wait for me downstairs in reception.

6. John's father is waiting downstairs.

7. I could hear someone creeping around downstairs.

8. He fell downstairs and broke his wrist.

9. They heard a commotion downstairs.

10. Go down and see what they are doing downstairs.

11. She washed her face and hands,then went downstairs.

12. Downstairs toilets were connected directly to the drains.

13. I went downstairs to answer the phone.

14. I dossed down on the couch downstairs.

15. She crept downstairs quiet as a mouse.

16. Mother wants to come downstairs[sentencedict.com], but is too weak to walk; it'll take both of you to bring her down.

17. Downstairs there's a breakfast room and guests can relax in the cosy bar.

18. She came downstairs after her shower, wrapped in a towel.

19. He went downstairs to breakfast.

19. Sentencedict.com is a online sentence dictionary, on which you can find good sentences for a large number of words.

20. Callum is downstairs. Shall I bring him up?

21. She heard him clattering around downstairs.

22. I could hear my father bumbling about downstairs.

23. Downstairs in the hall, midnight struck.

24. He lives in a downstairs room.

25. They're waiting for us downstairs.

26. Did you put the lights out downstairs?

27. The whole downstairs needs repainting.

28. Can you turn the light out downstairs?

29. Habit is habit, and not to be flung out of the window by any man, but coaxed downstairs a step a time. 

30. The bedrooms are upstairs and the dining - room is downstairs.