Tony Zhao · Cost Expert

Expert Q&A

• How much does it cost per square meter to build a guest room in an economy hotel?I am Tony Zhao, an MEP engineering cost expert. The budget hotel guest room cost you ment…
• The design redundancy of the power distribution system is excessively high, resulting in serious waste of installed transformer capacity.【Cause】The design institute used the upper limit of the load density index for estimation…
• The chillers in the HVAC system are oversized, resulting in low part-load operating efficiency throughout the year.【Cause】The design adopted a superimposed calculation of extreme operating conditions and …
• The fire protection power distribution system adopts a dual redundant design, and the cable usage far exceeds actual demand.【Cause】Insufficient understanding of fire load classification in design; all circuits wer…
• High-end stone is used extensively in non-core areas, and the cost per unit area is out of control.【Cause】The design scheme has not undergone cost adaptation optimization, and there is a l…
• Frequent interior fine decoration design changes lead to cost overruns from demolition, alteration and rework.【Cause】Design was not fully aligned with functional requirements, and changes in client r…
• Missing items and inaccurate measurement in the preparation of the bill of quantities lead to frequent settlement disputes【Cause】Insufficient professional competence of the bill of quantities (BOQ) preparation s…
• Missing items in the bill of quantities and quantity deviations cause the settlement amount to far exceed the contract price.【Cause】Drawings at the tender stage lack sufficient detail and the bill of quantities is …
• The foundation pit support scheme was not compared and selected among multiple options, and the conservative option adopted increased costs by more than 30%.【Cause】The design institute selected an excessively large safety factor and did not optim…
• The steel and concrete content of the structure exceeds the average level of similar projects in the region, resulting in higher structural costs.【Cause】The structural design safety factor is set too high, the calculation model is over…
• The curtain wall engineering design did not consider modularization and standardization, resulting in persistently high material wastage rates.【Cause】The design scheme pursues complex shapes, and non standard panel sizes lead to hig…

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