The Capitol Decorations Commission understood the value of first impressions. They commissioned a design for a memorable entrance even before a guest went inside. A 79-step grand staircase climbs slowly from the outside front portico, beginning well beyond the white limestone walls. The stairs are lined with red Tennessee maplewood and lead to an entry hall with more than 9,000 square feet of space. The commission also wanted a building that was functional as well as attractive. The Missouri Legislature approved funding for a new capitol in 1845. The following year, they hired Philadelphia architect Benjamin Henry Latrobe to design the structure. Latrobe's design was an eclectic mix of French Renaissance style and American architecture. It features large columns on the exterior and interior, as well as domes over the Senate and House chambers. The total cost of the construction project was $3 million ($38.5 million in 2010 dollars). The cornerstone was laid in 1846 and the capitol was completed four years later. It was the largest single expense item in the state budget at that time. The decorative scheme for the capitol was designed by Charles Bulfinch, who also created designs for New York City's Federal Hall and the Massachusetts State House. Bulfinch used warm tones and textures such as marble and wood to create a feeling of luxury without spending too much money. He also incorporated some modern improvements such as central heating and plumbing.