Contingency and hidden risks for a €240,400 Utrecht renovation

[yard.steady]

Sixteen days into the budget review, the headline figure still looks plausible. My concern is how much of the €240,400 rests on conditions nobody has yet inspected in the 255 m² detached house in Utrecht.

We are allowing for work to the kitchen and bathrooms, new floor finishes, decorating, electrical investigation and limited energy improvements. There is no proposed addition, although hidden damp, inaccessible plumbing or remedial structural work could still disrupt the sequence.

Before choosing a contingency, what missing fact would you establish first? I am considering asking the surveyor to identify where moisture readings and opening-up checks are needed, then having each contractor separate actual repairs from testing allowances and list exclusions. Material lead times could then be tied to a programme rather than treated as a general risk.

 

[measureTheFinch]

At this stage I would keep roughly 15% outside the priced scope, rather than treating it as money available for upgrades. The biggest question is how much inspection was possible without opening floors or walls.

Ask whether the electrical allowance covers testing only or actual remedial work, where bathroom and kitchen pipework can be accessed, and whether moisture readings were taken around wet rooms and the ground floor. Also request a written list of exclusions from every contractor.

 

[walksAndBeam]

I would not choose the contingency percentage before separating estimates from fixed quotations. A 15% reserve can still be inadequate if the kitchen price excludes electrical alterations, plumbing diversions or making good; it may be excessive once those items are properly investigated.

Build the programme backwards from materials with long lead times, but delay final flooring and paint until wet work, electrical changes and moisture issues are resolved. Confirm permit timing for any relevant energy or exterior work in Utrecht rather than assuming “no extension” means no approvals. Then price the remaining unknowns individually and hold contingency for conditions that genuinely cannot be inspected.