$1000000 through real estate - one thing doesn't make sense?

[Humphrey Piccus]

In Brandon's recent webinar, "How To Make One Million Through Real Estate Investing", Brandon says to take the after repair value and subtract 20% for the price you pay. He says it's worth 150,000 and buy it for 120,000. He also says to expect 10% forced appreciation in the first year, resulting from your updates and repairs you do to the property. It seems he is doubling the appreciation from repairing it. If the after repair value is 150K, why would it go up another 15K in one year resulting from you repairing the property?