10% safety margin

The Reef
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Hello @reef-coordination, and in particular @alberto and @RichardB,

I have started to prepare a proposal on the baseline for the 10% safety margin.

In a first session at the plenary tomorrow, I would like to get to a shared understanding. After that, when the numbers of the avant-projet should be a bit more stable, I would complete the proposal about which number to take for the baseline.

Would one of you possibly have the time for a quick peer review? I saved the document in the proposals folder: Login – Nextcloud

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Genius idea to leave the site (and possibly the finishings) out of the calculation!

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Hello Lee, I added a few questions / comments in the interest of a shared understanding. Thanks!

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Thanks a lot for the review, much appreciated!

@RichardB, your comment about the 6000 euro for the abattement makes me think there is an error in the “options” section of the third tab (“private units”) of the “simplified budget” file.

Would you be willing to have a look and correct it if necessary? The way I understand your comment the -6000 for which people are asked to tick a 1 if they are eligible, should be turned into a +6000 for those who are not eligible. Correct?

It is saved in Team Finance > Estimations and scenarios > Avant-projet: Login – Nextcloud

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Yes that’s my understanding - Have amended in the excel sheet.

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There’s an ongoing discussion within @coral-board about alternative ways to frame the 10% safety margin. There are two issues: one, that it is an additional financial challenge for some families; and two, that, since it is calculated on a casco price that keeps fluctuating, it is a bit opaque and makes it more difficult to make decisions.

So here’s an idea, framed as part of the review of this proposal by @Lee.

  1. For the purpose of calculating the safety margin, set the average casco price to 3,500/ m2 gross and leave it there, even if the actual casco price fluctuates a bit as we make the final decisions.
  2. Set the minimum safety margin at 12%, but on the casco price only.
  3. In the “we will find creative solutions” case, allow the margin to go as low as 10% of the casco price only.

This has two consequences:

  1. The total sum is similar to the proposal (9% on casco + finishings). Imagine a unit with weight = 1.
casco weight safety on casco finishing safety on finishing Total
3,500 1.0 9% 900 9% 4,160
3,500 1.0 12% 900 0% 4,167
  1. Much simpler to calculate.
Budget = casco + finishing + safety margin

safety margin = 3,920 x weight x m2 gross

All the numbers in the safety margin formula are already known.

Even if this idea does not work for others, we should still have a formula for calculating the safety margin in the proposal.

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Thanks a lot for trying to bring more simplicity and clarity. I really appreciate it.

At the same time I am afraid that this method (nor my own proposal) is fit for purpose for the other thing we are trying to do, which is setting the maximum budget (i.e. 110% of XYZ).

I’m afraid this proposal is simply not clear and mature enough to go to plenary. I would propose to talk a bit when we see each other in person, and in function of where we get possibly set up a short helping circle meeting one of the next days.

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@reef-coordination

following up on Lie’s suggestion from the coordination meeting, to have a chat with Mark about my questions, Lie and me had an online meeting today with Mark.

The minutes can be found under the Team Coordination folder.

@Lee : feel free to complete/correct or move the minutes somewhere else (don’t know where you keep the exchanges with Mark). I also integrated his reply to the open questions we had

Based on this meeting today, I have added some questions for the architects, to be asked in our meeting next week with them. (saved under the Coordination team)

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Thanks Els. I added some things and offered a couple of suggestions for rewording.

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fyi, i think you missed this…

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@els I see his email includes information about De Spiegel, but I don’t see where it says that l’Echappée exceeded their safety margin. Can you please point me to where I can find this information?

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Hello @reef-coordination,

After having talked to Mark and the architects, here’s a second attempt at a proposal on fixing the price and the safety margin: Login – Nextcloud

Could you please have a look and provide your feedback on any major issues?

Note: you will see that for now I actually refrained from formulating a proposal. As we did with the facades, I think this will benefit from a selection process, so that everybody can speak their piece. What do you think?

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This was during the talk with mark, the only one he couldn’t answer right away, was the one about De Spiegel and so he replied later by mail

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hi lie, i read the proposal of the safety margin only now, didn’t have the time before.
I added some comments.

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I disagree on this one. The way I understood what he said was he didn’t remember about both cohousings, and that he was going to look it up.

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ok, i might have misunderstood, but since he came back to us with the answers to the other questions the same day, and didn’t give an update since than, i am afraid he neither sees this as an open question to be answered.
Shall I write him a mail about this?

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It’s like you want. Based on deduction, on the fact that reportedly they didn’t have much money to finish their common spaces, I think it is safe to assume that they used it all.

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no need from my part