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Reservations, the payment simulator and proposals

How to reserve a unit with no risk of a double reservation, build the payment flow in the simulator (down payment, deposit, monthly installments, balloons, handover and financing), understand present value and the rule violations that require an authority, and turn the simulation into a proposal that runs all the way to a sale.

Reservations and proposals are the commercial heart of the module. The reservation holds the unit; the proposal freezes the agreed deal, with the amount, the flow and the validation, so that nobody argues later about what the terms were.

Reserving a unit

  1. Open the Sales mirror and choose the development.
  2. Click the unit you want, which has to be Available.
  3. Use Reserve (48h).

The unit turns Reserved immediately and the reservation appears on the Reservations screen. Reserving is the most contested moment in a launch sale, so the system locks the unit during the operation: if two brokers reserve the same unit in the same second, one wins and the other gets the message that the unit is no longer available. There are never two active reservations for the same unit.

Tracking and closing reservations

The Reservations screen lists every reservation with the status Active, Expired, Renewed, Cancelled or Converted, showing when each one expires. You can Renew, which extends the deadline, or Cancel, which releases the unit back to Available. Reservations past their deadline are expired automatically and the unit returns to inventory, so a forgotten reservation does not lock up the mirror.

Proposal simulator

Open Proposal simulator, choose the development and the unit and build the terms. The fields are Sale date, Proposal total, Down payment, Monthly installments and Monthly rate as a percentage. Click Simulate.

The result shows the List price, the Discount applied, the Present value and the full Payment flow, installment by installment, split by type: Down payment, Deposit, Monthly, Balloon, Handover and Financing. The arithmetic is done in whole cents and the rounding remainder falls on the last installment, so the sum of the installments matches the agreed total exactly.

Present value and why it matters

Two flows with the same total are worth different amounts if one pays sooner. Present value brings every installment back to the sale date using the monthly rate you entered, and it is the number that lets you compare a stretched out arrangement with the standard terms in the price table. A custom proposal is only equivalent when its present value matches that of the standard flow.

Rule violations and approval authority

The simulation is checked against the price table in force. If everything is in order, the screen shows Within all rules. If not, the Rule violations block appears with whatever was broken:

  • Discount above allowed, when it exceeds the discount released without approval.
  • Discount above maximum, which is the absolute ceiling.
  • Down payment below minimum.
  • Margin below floor.
  • Present value below the standard flow.

Each violation is flagged as Requires authority, indicating which level has to approve, or as Blocked, when not even the highest authority can release it. That way a discount outside policy never slips through in silence.

Saving the proposal and taking it forward

  1. Still in the simulator, enter the Buyer, which is optional, and click Save proposal.
  2. Open Proposals to see the saved proposal with the flow, the present value and the authorities frozen.
  3. Use the actions as the deal moves along: Send, Accept, Reject or Convert to sale.

The proposal statuses are Draft, Sent, Accepted, Rejected, Expired and Converted. Convert to sale takes the proposal to the Sales & commissions screen, where the deal is closed.

Example: Unit 802 has a table price of USD 480,000.00. The broker simulates USD 465,000.00 with a down payment of USD 93,000.00 and 60 monthly installments at 0.8% a month. The simulator shows a discount of 3.1% and flags Discount above allowed with Requires authority, because the table releases up to 2% without approval. With the manager's sign-off, the proposal is saved, sent and accepted.
💡 Estimated cost and unit margin feed the margin validation, but the numbers themselves are only visible to whoever administers the settings. The buyer sees price, discount and installments, never the developer's margin.

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Reservations, the payment simulator and proposals · Sellio