What to do with an acre of land that I can't put units on?

[Brad Thomas]

I bought a 5-unit apt building 2 years ago. It's sitting on about 2 acres and I was looking forward to building more housing on the property (another apt building or townhouses). I finally stopped in to the town building office last week and they said that I can't build any more units. The land is zoned R1 and is considered "non-conforming" because it was there/built before the zoning rules were put in place. So what can I do with all this land? I don't want to have to maintain huge fields and I'd like to make some money on the land if possible.