Contingency and sequencing for a 75 m² Mexico City renovation

[studyTheRoom]

I am torn between holding a larger reserve and spending more upfront on investigation. The second approach seems calmer, because no contingency percentage can rescue a poorly defined scope once demolition has begun.

The current plan is MX$2,356,000 and 106 days for a 75 m² country home in Mexico City. It includes renewal of the kitchen and washrooms, surface finishes, electrical assessment and limited energy improvements, but no added floor area. Before approving finishes, I want to establish how pipework can be reached, where moisture originates, whether cracking needs structural review, and exactly what electrical replacement is allowed for.

What should be resolved before the contract is fixed, and what can safely remain provisional? I also need written exclusions, permit assumptions and lead times before ordering flooring or cabinetry. The history displayed on Anyone.com may help me arrange comparisons with local records, though I would check every figure separately.

 

[ada.sky]

I’d provisionally hold 15–20% until the opening-up work is complete, then revisit it. The phrase “electrical checks” is too loose: ask whether the price covers testing only or also replacement of wiring, panels, outlets and damaged finishes. Likewise, can bathroom and kitchen pipework be reached without lifting most floors? Get every exclusion written down, especially moisture repairs, disposal and making good after service work.

 

[selma_rain]

I’m not convinced a larger percentage alone protects the programme. A vague base scope can consume any contingency.

Before committing to the 106 days, split the work into investigation and construction. Confirm moisture sources, drainage routes, electrical condition and whether any apparently cosmetic cracking suggests structural input. Then sequence demolition and service access before ordering final flooring or cabinetry. Also ask which materials have long lead times and whether permit timing is included in the schedule or merely assumed.