ᐅ Drainage in front of garage door is missing / should it be corrected? Defect?

Hello everyone,

Our new garage has been standing in front of the house for about a year now. It has a door on the left side.
To avoid a steep driveway, the garage had to be set lower than the front door, so unfortunately we cannot enter the garage door at ground level. Almost at the last minute, and to our surprise, a step was created there.
We hadn’t thought much about it, and it doesn’t look wrong from a visual point of view.

Last week, after two days of thunderstorms (not a huge amount of rain, just normal showers), I noticed that water was pooling in front of the garage door. It almost flowed into the garage. Only at that point did I realize there is no channel, drain, or anything similar there. I’m attaching pictures here.

A call to the architect revealed that the joints between the slabs are filled with "permeable sand." Due to the gardening work we are doing, these have now become blocked with dirt, and "they just need to be cleaned so the water can drain again." He does not see this as a defect or fault.
Could this really be the solution? Isn’t there supposed to be something at this garage door? The landscaping company currently working at our place said this is a clear defect and that we should file a complaint.
What do you think?

The door threshold is about 7 cm (3 inches) above the stone surface at its highest point.

Thanks and best regards

What do you want to hear now? So far, I have only seen an ACO channel drain at a garage driveway or in front of a carport! Never at a garage door.

Besides, it wouldn’t have helped you anyway because you have to connect the ACO channel drain to the drainage system! Do you have the possibility to do that at this location? Or did you simply forget? If not, that’s the end of it. If the landscaper cannot find the drainage pipe (soil pipe), they can’t connect anything.

This is just my opinion.

If there is no existing drainage, I would build a channel and direct the drainage into the lawn area or flower beds... far away... this will surely help to significantly reduce the problem.

Zaba12 schrieb:

What do you want to hear now? So far, I have only seen an ACO channel drain at a garage entrance or in front of a carport! Never at a garage door.

Besides, it wouldn’t have helped you anyway because you have to connect the ACO channel drain to the drainage system! Do you have the option to do that at this spot? Or did you simply not think of it? If not, then that’s the end of it. If the landscaper can’t find the KG pipe, they can’t connect anything.

This is just my opinion.

Is there a reason for this aggressive tone? I am just asking for advice here. I’m interested to know whether you think it makes sense to dispute a defect with the tradespeople who installed this stair step or with the architect as the construction manager, or whether from your perspective this is not a defect and is acceptable as it is.

Concrete paving is considered permeable, so establishing a defect based on that is difficult. Nevertheless, you need a solution—for example, think about winter -> snowmelt water will sooner or later end up in your garage. Is the terrain lower somewhere else so that drainage could be installed? Or is the unwanted basin already the lowest point in the area, which would make things more challenging.

@Mottenhausen thanks for the reply.
We have already gone through the first winter, but there was hardly any snow. Unfortunately, this unwanted basin in front of the garage door is pretty much the lowest point around.
The landscaping contractor suggested removing the stone right in front of the door threshold and installing a drainage layer or something similar there. We have only briefly discussed this so far because he said I should first report it as a defect.