Private tree farming plays an important role in timber supply in developed countries. Nigeria with a rapidly growing timber market is however largely bereft of such investments. Using descriptive statistics and discounted measures of project worth, this study sets out to show the components of cost of establishing a private teak farm in the rainforest zone of Ogun State, Nigeria to ascertain whether it will be a rewarding enterprise for would be investors. Large-scale investments in plantation forestry projects are yet to take root in Nigeria. With the central objective of examining the cost profile of inputs and output potentials in teak farming, this study employs discounted measures of project worth method to estimate the Net present value (NPV) and Internal rate of return (I over a 15 year project cycle. The results show that an incremental benefit (NPV) of N30, 927 and IRR of 28.3% could be realized. This is well above the prime lending rate of 18% for the Country. The paper suggests that it be best to include private investors in teak tree planting ventures as the tree has all round utility and will yield consistent financial returns from as early as the end of third to fifth year of its growth when it can be harvested for various uses. In the light of these, the study thus conclude that farming is a profitable business venture and private investors would benefit from teak plantation