Data survey on public-private professionals role in building control measures within the Nigerian construction industry

The data survey focused on building control measures which are critical in attaining sustainable built environment. The data examined the public and private professional׳s performance of building control measures and its barriers in Lagos. The targets consist of sixty (60) construction experts in public and private construction firms operating in Lagos. The sample size was generated from the pool of registered construction professional׳s from private and public construction organizations in Lagos using random sampling technique. Descriptive statistics and inferential tests which include Kruskal-Wallis and Mann-Whitney U tests were performed on the dataset generated. The data harvested will avail the construction expert׳s in public and private construction industry on the need for partnership in a bid to enhance building control measures performance in Lagos.


a b s t r a c t
The data survey focused on building control measures which are critical in attaining sustainable built environment. The data examined the public and private professional's performance of building control measures and its barriers in Lagos. The targets consist of sixty (60) construction experts in public and private construction firms operating in Lagos. The sample size was generated from the pool of registered construction professional's from private and public construction organizations in Lagos using random sampling technique. Descriptive statistics and inferential tests which include Kruskal-Wallis and Mann-Whitney U tests were performed on the dataset generated. The data harvested will avail the construction expert's in public and private construction industry on the need for partnership in a bid to enhance building control measures performance in Lagos. &

Value of the data
The data when analyzed compared with existing data on building control can help identify the sustainable ways of achieving sustainable building control measures.
The dataset can help construction experts to ascertain the state of building control practices in a bid to enhance their performance and preserve the built environment [1][2][3][4][5][6].
The dataset will avail the public and private construction institutions of the need for partnership in order to enhance building control measures and manage the barriers to its effective performance.

Data
The deficit in housing provisions due to the alarming increase in cities population has led to the prevalence of abuse of the built environment in a bid to meeting the housing challenge [7][8][9]. The data explored the role of construction experts in public and private construction organizations performance in building control measures and the barriers militating against its practice in Lagos. A well-structured questionnaire was used to generate the data from sixty (60) construction experts operating in the study area. The data generated from the construction experts are as follow: data on descriptive statistics of the experts which include age, academic qualification, respondents sector, profession and professional membership body is presented in Table 1, data on construction expert's perception on performance of building control measures in developing city ( Table 2) and data on construction expert's perception on barriers to building control measures ( Table 3). The analyzed data was also used to generate inferential statistics using Kruskal-Wallis and Mann-Whiney U as presented in Tables 4-9.

Data collection
A well-structured questionnaire was used to generate the data by targeting a pool of registered construction experts operating in the study area. Random sampling technique was used in selecting the sample size. The contents (variables) of the questionnaire was sourced from the review of literatures and is designed to capture the datasets. A similar method of data exploration includes [10,11].

Data analysis
The data gathered was analyzed using percentages, mean item score and descriptive statistics as indicated in Tables 1-3. The data was also analyzed with inferential statistical tool which in Kruskal-Wallis and Mann-Whitney U. Kruskal-Wallis statistical tool was used to test for a significant difference on the perceptions of the construction experts on performance of building control measures  in the study area (Tables 4-6), while Mann-Whiney U was used to test for significant difference between the construction professionals in the public and private group on the barriers militating against building control measures practice (Tables 7-9). A similar method of data analysis includes [12,13]. 29.42 Total 60 The synchronization with other statutory bodies to meet their requirements.  The synchronization with other legal bodies to meet their requirements.
3.820 4 .431 Creating a legal framework for instantaneous and uninterrupted audit and certification of existing buildings.
5.532 4 .237 Table 6 Kruskal Wallis result on construction expert mean rank on building control procedures.

Building Control Procedures Profession N Median
The handling and examining of building plans for approval Architect 13 4 Quantity surveyor 9 5 Builder 24 4 Civil Engineer 8 4 Urban and Regional Planners 6 4 Total 60 4 The assessment of the progress of building work.
Architect 13 4 Quantity surveyor 9 3 Builder 24 4 Civil Engineer 8 4 Urban and Regional Planners 6 3 Total 60 4 The assessment of building completed according to accepted building requirements for giving out a certificate of occupancy.

Acknowledgments
The researchers acknowledge the publication support by Covenant University through the Covenant University Centre for Research, Innovation, and Development (CUCRID), Ota, Ogun State.

Transparency document. Supporting information
Transparency data associated with this article can be found in the online version at http://dx.doi. org/10.1016/j.dib.2018.08.193.  .459 Table 9 Barriers to building control procedures median score of public and private construction professionals.