The primary intention with each investors invest their funds pertains to earning returns on those funds invested. The main goal of all investment activities has been to maximize the return from the assets and investment holdings, while minimizing the risk of variance of returns. In line with the principles of diversification suggested by the Portfolio Theory, it is recommended that investors should not put all their funds in one asset, but divide them into a range of assets that have low or negative correlation with each other, so that the variations of the returns of the portfolio are minimized. This report presents a brief documentation of the portfolio construction strategies which have been undertaken for the investor having GBP 500,000. It has been assumed that the investor has a long term investment horizon and the primary investment objective is to earn attractive returns from the portfolio, but minimizing the variance also at the same time. Given the long term investment objective as well as capital preservation and appreciation objectives of the investor, it is suggested that the investor should put their funds in the stock market.