Collect the actual inputs
Use written offers, invoices, quotations or your actual income and payments. Label missing figures instead of treating them as zero.
SYNDIWISE
SYNDIWISE LAB
Choose the worksheet that matches your question. Each tool shows its assumptions and limits; no calculator confirms a price, a loan or a booking.
Use written offers, invoices, quotations or your actual income and payments. Label missing figures instead of treating them as zero.
Check whether tax, furnishings, land, financing or additional fees are included. Avoid counting a cost both in the quoted price and as an extra.
Try an earlier departure, a different quote or another chosen payment share. A calculator does not assess the quality of a property or your lender’s decision.
Choose a destination and neighbourhood before comparing offers. For monthly rentals, use the furnished versus unfurnished calculator with actual costs.
Buying: prepare fees added to the price with the notary calculator, then test principal and own funds with borrowing capacity. Construction: use total planned built area and comparable quotes. Renting: compare two offers over your actual stay, separating deposits from expenses.
A missing quote is not a zero cost. Acquisition and construction tools identify missing items. Results prepare a discussion with the notary, contractor or lender; they are not an approval, contractual quote or property valuation.
Formulas and sources reviewed on 11 October 2026 · French, English and Arabic · Calculations in your browser.