Delay is one of the biggest problems often experienced on construction project sites. Delays can
instigates negative effects such as increased costs, loss of productivity and revenue many lawsuits
between owners and contractors and contract termination. The aim of this project is to investigate
the causes and effects of delay on building construction project delivery time. Random sampling
technique was used in this study. Population sample of 150 was used in this work. A total sample of
ninety three (93) was deployed. A structured questionnaire in Likert scale was used in data
collection. There are many factors that induce delay on construction projects, however in some of
identified factors includes: lack of funds to finance the project to completion, changes in drawings,
lack of effective communication among the parties involved , lack of adequate information from
consultants, slow decision making and contractor’s insolvency, variations among others. Also,
project management problem, mistake and discrepancies in contract document, equipment
availability and failure, mistakes during construction, bad weather, fluctuation in prices of building
materials, inappropriate overall organizational structure linking to the project and labour. The
factors above could be observed and could be a clue to preventing delay on construction sites