I agree with my fellow colleagues regarding the speculative nature of real estate. However everything in real estate is somewhat speculative and oftentimes the factors that are used to spur growth or track trends is dependent on the infrastructure that is existing or is future. The more jobs that produced and income that is generated through retail and commercial means the greater the chance of home values increasing over time. How quickly that will happen, that is where the true guess work would come in. Currently you can track any home sale price increases in that area based on what happened over the last 4 years as the National Harbor came out of the ground and grew in popularity not only among those living in the DMV area but also as a tourist attraction. Like one of the gentleman said the increase has been dismal, but that is the real estate market as a whole over the last 4 years. However within the past year we have started seeing a stabilizing and small incremental price increases.
If you want to track the trends easily go to:
All the Best!