In spite of the huge environmental and energy problem in Nigeria, designers have not seen the need for a shift from their traditional method of designing buildings. The purpose of this paper is to highlight the need for green and sustainable design in Nigeria using Lagos as a case study with focus on the effects of green design on environmental sustainability including its economic implication and occupiers preferences with respect to building components and services to ascertain the level of their appreciation of green elements.
Questionnaires were distributed to various groups which include; residents (households) at Dolphin and Abraham Adesanya estates Lagos and also 1040 households in 8 metropolitan local government areas of Lagos to determine the extent of power (electricity) problem and the use of private generators in the city.
Findings from the study show that flooding and loss of property arise from lack of green and sustainable design. It was also found out that due to poor electricity supply, households resort to informal power supply which contributes to global warming.
The paper recommends that there is need for a holistic adoption of green design as lack of it has been observed to be adverse to efficiency in buildings and environmental sustainability in Lagos

Purpose -From the perspective of plant and machinery valuation, this paper aims to assess the factors that constrain accuracy in plant and machinery valuation in the Nigerian context. Design/methodology/approach -This paper is based on the technical, economic and market infrastructure affecting machinery and equipment valuation in Nigeria and surveyed 150 practicing firms in Lagos to elicit from them what they believe are the major constraints to valuation accuracy. Findings -The findings reveal that, due to lack of specialization in machinery and equipment valuation, very few valuers have sufficient knowledge content to engage in the exercise. Four significant factors are established to be contributing most to valuation inaccuracy. Originality/value -This study is the first on inaccuracy in machinery and equipment valuation, and consequently highlights the need to equip Nigerian valuers to face the challenges of the expertise required in this specialized area of valuation.

Purpose -The purpose of this paper is to focus on households' willingness to pay for electricity consumption and mitigation expenditure due to poor electricity infrastructure as a measure of demand and tariff setting. Design/methodology/approach -In this paper, the demand side management (DSM) approach was adopted in establishing user demand for electricity in the study area. Findings -Based on the high cost (averting expenditure) of providing alternative power supply, households are willing to pay extra for more reliable and regular power supply. Practical implications -The study is a deviation from the usual command or supply side management approach to infrastructure provision and management. Originality/value -There is limited research on DSM approach to electricity infrastructure provision in Nigeria. The study will enhance the chances of cost recovery under private-public partnership arrangement. The paper identifies that a reliable and reasonable priced electricity supply is essential for a developing country.

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This paper aims at investigating attributes that affect hotel room pricing based on customers' perception. A related objective is to create a model of these perceptions which will serve as a framework for would-be investors and managers. The paper also examines previous literature on the issue of lodgers' perception of hotel attributes and pricing techniques. A hedonic model was developed which included the identified significant attributes. The findings show that regular power and water supply, closeness to the city centre and good room service are some of the attributes that lodgers find most important in a hotel accommodation.