Laffitte's foray into the complicated politics of 1830 in France cost him dearly financially. The revolution had worsened an already troubled French economy. Laffitte & Co. suffered losses of 13 million francs and the bank had to be liquidated (January 1831). To help cover his bank's losses, Laffitte talked the governor of the Bank of France into arranging an unprecedented bank loan of 7 million francs. He put his Paris home on the rue d'Artois (now the rue Laffitte) and his art collection up for sale. Most importantly, for 6 million francs. he sold off family woodlands at Breteuil to the king, Louis-Philippe, which helped greatly but hurt Laffitte politically and financially when the king made the sale public. Laffitte at least managed to protect the Château de Maisons from sale, but he divided up its extensive parklands into lots for building country villas to sell to rich Parisians. This actually became a remarkably creative early experiment in suburban real estate development, as described in a brochure prepared by M. de Rouvières entitled "Histoire et description pittoresque de Maisons-Laffitte " (1838). Laffitte and his brother, Jean-Baptiste Laffitte, established a stage coach line for the 15-kilometer trip from Paris to Maisons. His nephew, Charles Laffitte (1803–1875), and his son-in-law, the Prince de Moskowa, added a grassland horse racing track – the first in France.