The implementation of lean principles and approaches is gaining grounds in the construction industry globally. However, there is no clear understanding of the number and categories of lean practices implemented and the benefits associated with it in the planning, design and construction of building and infrastructure projects. This paper relied on a systematic review of published literature in Scopus, Science Direct and Google Scholar to identify and categorize the different lean practices implemented in the construction industry and the benefits derivable from them. Totally, 102 documents published between 1996 and 2018 were reviewed and their contents analyzed using descriptive statistics and content analysis. A total of 32 different lean practices categorised into design and engineering; planning and control; construction and site management; and health and safety management were identified. The review also found that the last planner system and just-in-time were the top two most implemented lean practices and about 20 different economic, social and environmental benefits were linked to the implementation of lean practices in the construction industry. This review is instructive that lean practices have good prospects for enhancing the productivity of the construction industry and achieving sustainable built environment, but a critical mass uptake and sustained implementation are required to attain these goals.

Low energy houses are forms of housing that use less energy from the design, technologies and building products from any source than a traditional or average contemporary house. The survey dataset examines architect׳s awareness and adoption of building envelope technologies (BET) for energy efficient housing in Lagos State, Nigeria. The dataset was based on seventy-four (74) returned questionnaires of both registered and non-registered Architects. A multistage sampling that involved cluster sampling and random sampling of architects in Lagos State was adopted. Descriptive statistical tools were used to present the dataset. The dataset contains the intent of promoting energy sustainability by architect while designing their building envelopes, the awareness of the building envelope strategies to adopt, factors influencing their adoption of these strategies, strategies that can be adopted to improve adoption of building envelope technologies for energy efficiency in housing units. The dataset can be used for evolving housing energy policy by decision makers.

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This dataset covers an investigation into awareness and adoption of information and communication technology (ICT) in town planning firms in Lagos state, Nigeria. A survey of thirty (30) town planning firms in Lagos state, Nigeria was conducted. The survey was carried out between January to March 2017 by the use of questionnaires. The dataset contains responses on the factors that influence ICT usage, barriers and constraints of ICT usage. The five (5) point Likert scale was used for quantitative data analysis. The data can help identify the level of ICT usage, identify areas of concern and solutions can be proffered based on the results of the analysis.

The occurrence of claims prevails in all projects, making the successful completion of projects within the predetermined budget a mirage. This is recognized to have added to costs of projects and adversely affected project performance. This paper aims at investigating critical factors influencing occurrence of claims in building projects in Lagos State, Nigeria. Forty-three (43) construction project attributes affecting project performance were identified through literature and presented to the key stakeholders in the study area using questionnaire survey. Two hundred and seventy-six (276) copies of the questionnaire were randomly administered to key stakeholders involved in the building construction process. One hundred and fifty-one (151) were retrieved representing 57.61% response rate. Principal component analysis of responses to a set of 43 characteristics identified through literature review extracted four components. The results indicated important factors such as: ‘Project Participant Characteristics’, ‘Basic Project Characteristic’, ‘Procurement Characteristics’, along with ‘Complexity Characteristics’ were factors influencing the occurrence of claims. It was concluded that the construction stakeholders should effectively manage these factors in minimising claims occurrence and thereby improving building projects delivery.