Investment feasibility analysis is one of the very important steps to do an investment, in order for a company to acknowledge whether the investment is feasible or not. Risk is something that we cannot avoid while doing an investment and those risks may affect the feasibility of the investment to be carried out, therefore in this study the risk is estimated and its effect on the feasibility of the investment are more visible. In this research, an analysis of the feasibility of an office building investment for a natural stone company are carried out using annual revenue data from the related company, moreover the feasibility of the investment is estimated by measuring NPV, IRR, and payback period using the discounted cash flow method. The result of this analysis is carried out using a Monte Carlo Simulation, in order to generate the result of the investment feasibility analysis using the real option valuation method. Therefore, the calculation results of the risk can be avoided and can reduce the NPV and IRR of the investment. Abstrak Analisis kelayakan investasi merupakan hal yang sangat penting dalam melakukan suatu investasi, agar investasi tersebut dapat diketahui layak atau tidak untuk dijalankan. Dalam melakukan suatu investasi selalu ada risiko, dimana risiko tersebut dapat mempengaruhi kelayakan investasi yang akan dijalankan, oleh sebab itu dalam penelitian ini risiko tersebut akan dihitung dan akan dilihat pengaruhnya terhadap kelayakan investasi. Pada penelitian ini dilakukan analisis kelayakan investasi pembuatan kantor untuk perusahaan batu alam menggunakan data pendapatan tahunan dari perusahaan yang terkait, lalu diperhitungkan kelayakan investasi dengan tolak ukur NPV, IRR, dan payback period dengan menggunakan metode discounted cash flow. Analisis risiko yang dilakukan menggunakan simulasi monte carlo, yang selanjutnya dilakukan analisis kelayakan investasi menggunakan metode real option valuation. Dari hasil perhitungan bahwa risiko yang ada dapat menurunkan nilai NPV dan IRR dari investasi tersebut.

Regional water utility company at Jakarta is determined to improve the quality of service to its customers. The water distribution system must have criteria for quantity, quality, and continuity of flow. To maintain the criteria of company, it continues to make improvements. Based on the evaluation of water utility company that they could decrease of non-revenue water was 1% per year with company target was 2% per year. Decision support systems increasingly play an important role in the area of area control that will be used as improvement project on pipes to customers. Some supporting methods that will be used are electre and linear programming (LP). Electre will be used in decision making analysis on determining the repair area. Based on the results of electre analysis, it can be seen that B01, B02, B13, and B20 have the highest priority that can be recommended for improvement projects. LP can be used as tools for selecting the project to get maximum profit from limited of budget. Based on the results of LP analysis, it can be seen that it selected 13 projects from 16 projects with the constraint’s budget of maintenance is 16.7 BIDR.

Shelter is one of the basic human needs, including in Indonesia. Shelter can be a boarding house, apartment or hotel. Therefore, there are many investors competing to accommodate these needs because there is opportunities in the investment. Especially in Tanah Abang District, Central Jakarta, which is rapidly developing in boarding house construction. In investing, a feasibility study in financial side is needed that will be faced with uncertainty. This study aims to conduct an investment analysis by analyzing the configuration of boarding room units to maximize the profit using Linear Programming method then to do a risk analysis using the Monte Carlo simulation method to determine the probability of investment success rate. The result of this study shows the best configuration are 2:1:1 for type A: B: C units, with a Net Present Value < 0, Internal Rate of Return < Minimum Attractive Rate of Return, and Payback Period < 15 years. There are < 50% of investment success rate.

The need for housing in Garut is increased from time to time, besides of that the form of the houses was abstract and spread organically therefore to maximize the amount of housing construction and improves the quality of Garut residence those houses expected to be arranged systematically. Those organic spread houses established without valid permits become a polemic to build a neat and clean housing development. The dispute problems are expected to be answered by the Vroom Yetton Group Based Type 2 method to prevent disputes between developers and local inhabitants. Unit configuration affects the saleable area and expected to gain maximal value due to the limitations and existing landforms. Neat Housing Development intends educating people who are accustomed to living in organic housing into systematical housing and to improve the quality of life for the community and the value of the houses units. Therefore there are 3 alternatives to choose; skip the disputes area and build housing on the available area, spend amount of money to the disputes area for compensation, or build the whole area and give some of the houses to the existing local inhabitants. Those alternatives might be answered by analyze each of their net present value, payback period, and internal rate of return.