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The study examined the factors inhibiting the engagement of Quantity Surveyors (QS) on private residential building projects in Ado-Ekiti, Nigeria with a view to enhance the performance of such projects.

The study used a qualitative research approach with the use of interview protocol for data collection. A Convenient sampling method was used to select 20 on-going residential building construction projects for the study in the Government Reserved Area, Ado Ekiti, Ekiti State, Nigeria. The client and the architect of the selected projects were the population of research for interview. For data analysis, 28 successful interviews were used, while frequency, percentile and content analysis were the method of data analysis used.

The result indicated that the most important factor inhibiting the engagement of QSs on private residential building projects is lack of awareness of the benefit inherent in engagement of QS on residential projects. Other important factors are; the perception that engagement of QS will increase the construction cost, absence of legislation that mandate engagement of QS, usurpation of Quantity Surveyor’s roles by other professionals and the perception that engagement of QS is essential only in big projects.

It was recommended that every state chapter of the Nigerian Institute of Quantity Surveyors (NIQS) should start a series of awareness campaign program within their State to enlighten the populace on the services that a professional QS can offer them with emphasis on the benefits of engaging QS on the small scale projects such as residential building projects. More recommendation has it that as a matter of policy and requirement for building approval criteria, deliverables from QS should be made compulsory. This measure will help every potential residential building client to see QS as an important professional that must be engaged before their project can be successfully delivered.

The study attempted to investigate the factors inhibiting the engagement of QS on private residential building construction projects. This was motivated by the perceived prevalent of non-engagement of QS in the study area with the attendant poor project performance.

The study assessed the stakeholders prioritization of key performance indicators (KPIs) on public and private tertiary educational projects in Osun State, Nigeria intending to enhance their performance.

The study used a total enumeration survey to purposively select built environment professionals working in the Physical Planning and Development Unit (PPDU) and procurement units of 17 tertiary educational institutions (7public and 10 private) in Osun State Nigeria for data collection. A quantitative research approach was adopted for the study using a questionnaire. A total of 102 questionnaires were retrieved from the respondents and used for analysis. Analysis of data was done using frequency, percentile, mean score (MS), Cronbach's Alpha coefficient, t-test, and Analysis of variance (ANOVA).

The study found that in the overall opinion of the respondents the most prioritized KPIs for tertiary educational projects are for the project to meet specifications (MS = 4.17), the project must be on time (MS = 4.01), and efficient use of resources (MS = 3.96). The important KPIs for the public tertiary educational projects is that the project should meet specifications (MS = 4.08), deliver the projects on time (MS = 3.96), and be under cost (MS = 3.84). While, the most prioritized KPIs for private tertiary educational projects are for the project to meet specifications (MS = 4.25), efficient use of resources (MS = 4.14), on time, and doing the right thing (effectiveness) (MS = 4.06) each. More findings indicated that there is no significant difference in the manner built environment professionals prioritized KPIs. However, there is only a 7% significant difference in the manner professionals working in the public and private tertiary educational institutions in Nigeria ranked KPIs.

There is a significant difference in the ways and manner built environment professionals working with the public and private tertiary educational institutions in Nigeria view resource utilization on their projects. As such, working environment either as public or private has a significant impact on resource utilization for tertiary educational construction projects.

The study compared opinions of professionals working with public and private tertiary educational institutions on KPIs to enhance project performance.