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<p>The built environment of Owerri metropolis is filled with categories of dilapidated private and public buildings-in-use, with disparities in design concepts that conflict with tropical rainforest climates. Buildings must be designed such that maintenance requires minimal effort and has an affordable cost after occupation. A reconnaissance survey revealed cases of abandoned public buildings emanating from unresponsive designs. Against this backdrop, research on post-occupancy evaluation has been conducted to determine how well building designs are responsive to the tropical climates of the region after they have been built and occupied. We used data collection procedures via site visits, physical tracing, observations, selective interviews with managerial heads and consultants, and structured questionnaires. The sample size was randomly selected, and 389 questionnaires were administered to the respondents. Descriptive and quantitative statistical methods were used for data analysis. The findings revealed that design concepts such as concrete-flat-roofs, low-pitch-roofs, multiple fractional roofs, parapet walls, nonshaded devices and overhangs, which are not compliant with rainforest climates, have severe consequences for the maintenance, performance, and lifespan of buildings. Wrong design approaches that do not prioritize ease of maintenance, lack of post-occupancy evaluation, incorrect specifications, and poor construction were hindrances to maintenance. Achieving responsive designs for tropical rainforest climates, researchers have recommended climatic elements as major design considerations, leading to proper orientation, high-pitch roofs, deep overhangs, and appropriate shading devices. Furthermore, regular post-occupancy evaluation, elimination of unqualified professionals, mandatory climatology courses in architectural curricula (architectural climate analysis, sustainable environmental design characteristics), critical detailing, and strict engagement of licensed professionals are recommended.</p> Graphical Abstract <p></p>

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Post-occupancy evaluation of public and private building architectural design performance in the tropical rainforest climate of Owerri, Southern Nigeria

  • 期刊论文

  • 发表日期：

    2025年8月30日

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  • Stephen Ikpendu Nwankwo,
  • Chidiuto Victoria Nwankwo

摘要

The built environment of Owerri metropolis is filled with categories of dilapidated private and public buildings-in-use, with disparities in design concepts that conflict with tropical rainforest climates. Buildings must be designed such that maintenance requires minimal effort and has an affordable cost after occupation. A reconnaissance survey revealed cases of abandoned public buildings emanating from unresponsive designs. Against this backdrop, research on post-occupancy evaluation has been conducted to determine how well building designs are responsive to the tropical climates of the region after they have been built and occupied. We used data collection procedures via site visits, physical tracing, observations, selective interviews with managerial heads and consultants, and structured questionnaires. The sample size was randomly selected, and 389 questionnaires were administered to the respondents. Descriptive and quantitative statistical methods were used for data analysis. The findings revealed that design concepts such as concrete-flat-roofs, low-pitch-roofs, multiple fractional roofs, parapet walls, nonshaded devices and overhangs, which are not compliant with rainforest climates, have severe consequences for the maintenance, performance, and lifespan of buildings. Wrong design approaches that do not prioritize ease of maintenance, lack of post-occupancy evaluation, incorrect specifications, and poor construction were hindrances to maintenance. Achieving responsive designs for tropical rainforest climates, researchers have recommended climatic elements as major design considerations, leading to proper orientation, high-pitch roofs, deep overhangs, and appropriate shading devices. Furthermore, regular post-occupancy evaluation, elimination of unqualified professionals, mandatory climatology courses in architectural curricula (architectural climate analysis, sustainable environmental design characteristics), critical detailing, and strict engagement of licensed professionals are recommended.

Graphical Abstract