The Chinese art of design arrangement and placement is called feng shui. Feng shui tips for selling a split level house suggests that you have to create a more cohesive house to overcome the split design energies of the house. You want potential buyers to be able to see the whole of the home instead of leaving feeling as if they were being pulled in two different directions.
The main entrance to the house is where energy enters and is called the mouth of the home. Invite the energy for a buyer to explore the second level by enhancing the main entry. Keep the space around the entry, both inside and out, and the entry hallway clear and easy to maneuver. Remove all items that block the path in and through the house. Make sure the area is well lit with no dark corners. Add down-lighting or additional lighting if necessary. Use flowers to invite the visitor up the stairs by placing them in direct view on the landing. Choose flowers with little to no odor or fragrance and make sure they are replaced before they wilt with fresh water and flowers on a regular basis.
Helping energy to find its way through the home can be aided by the placement of heavy objects near the second floor stairs. Heavy objects help ground and focus energy before it heads to the second level. A heavy piece of furniture, like a breakfront or cabinets on a wall near the first step will help. Add an additional heavy object at the entry on the second floor. Other ideas for heavy objects are tables with stone bases or completely cut from stone, statuarys, paintings of landscapes that include stone or large, deeply rooted trees.
General staging practices for home sellers suggest giving the house a fresh coat of a neutral color (white, off-white) interior paint. This suggestion is especially important to sellers of split-level houses; multi-colored paint choices further separate the two levels visually. Build continuity by choosing a single color to paint the room where the stairs are entered and viewed. For instance, if the upstairs is viewable upon entering the home, paint the entry, the front room, the stair walls and any upstairs area viewable from the entry the same color.