Do low bids in Qardho hide as built drawing gaps?

As built drawings underbidding risks in Qardho start with a cheap tender. A low bid can hide missing as built drawings, because survey, setting out and record drawing work may never have been priced. The site then proceeds on verbal instructions. The client only discovers the gap at handover, when no accurate drawing exists of pipes, cables, reinforcement or levels. The building still stands, but its service records do not match what was built.

How do as built drawings underbidding risks start in Qardho?

The gap starts in the bill of quantities. A bidder who omits the survey and drawing line, or prices it at zero, undercuts everyone who allowed for it. Underbidding here is not one lump sum problem; it is a set of omitted cost items that later become someone else's problem. The estimator carries the risk of winning work that cannot be delivered at the price.

Items to look for in the priced bill for this project include:

• topographical and setting out surveys;
• as built markup of drainage, water and electrical routes;
• reinforcement and foundation records hidden after concrete pours;
• markups after variations and site instructions.

When a service run is buried without a record, the client inherits a building that cannot be maintained without excavation. Ask your procurement team to price the drawing deliverable separately and compare it across bids. If a bid carries no line for survey or record drawings, the client should ask what the contractor intends to submit at completion, and check the answer against the project's priced bill and specification. Ask the relevant municipal or approving office what record information it holds for the project, so the requirement is written before tender.

Which service records go missing when a bid is too low?

The records that vanish are the ones nobody can inspect after the fact. Underground drainage, water supply, electrical conduits in slabs and foundations all disappear under backfill, so an inaccurate service record is only found when a repair or extension is attempted.

A contractor working to a squeezed price will not spend site time surveying, photographing and drawing what was installed. The field team is under pressure to pour and backfill, and the drawing task sits at the end of the programme with no clear owner. By handover, the building may operate, but the client has no reliable plan of pipe runs, invert levels or cable routes. That is the practical cost of the omission.

Detect it early by asking for records before backfill, not at handover. Request survey and test records for buried work while trenches are open. Walk a recent site the bidder completed, if the client will allow access, and ask to see the as built set for that building. Compare it with what is visible on site. If the drawing set does not exist, or does not match, treat it as a warning about the current bid. General practice is that buried services should be recorded before covering, but confirm the exact requirement against your project specification or engineer.

What should the client require before awarding the contract?

Before award, put the recording obligation in writing. Ask the estimator to break out the survey and drawing line and state the deliverable: plan, section and detail drawings, marked with actual positions and levels, plus photographs of buried work before backfill. Check what the project's priced bill and specification already require, so the written list matches the contract rather than contradicting it.

Link payment to submission, not to the final day of the project. If your contract allows it, hold a defined portion of the drawing line until the client approves the as built set. Confirm what the contract permits on retention and milestone payments before you change anything; ask your legal or contract adviser. This does not need to be complex. A short schedule of record deliverables, referenced in the contract, does most of the work.

Also confirm the sequence for variation work. Every site instruction that changes a route or level changes the record. A one page update at the time is far cheaper than a surveyor reconstructing the whole building later.

What to do next

Before you award the contract, ask every bidder for a written drawing and survey deliverable list, with the price for each item shown separately. Check that list against the project's priced bill and specification. Then require the buried services record and photographs as a paid milestone before backfill. If a bidder cannot describe the deliverable, the low price is not the whole story.