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FEASLYOS / ENGINE 1325db75
INITIALIZING ENGINE000%

Talk to it like an analyst.Talktoitlikeananalyst.

Ask in plain language. Get a model back — not a template, not a guess.Askinplainlanguage.Getamodelback—notatemplate,notaguess.

The AI-native operating system for real-estate capital. Edit it like a spreadsheet, and trust it like a deterministic engine.TheAI-nativeoperatingsystemforreal-estatecapital.Edititlikeaspreadsheet,andtrustitlikeadeterministicengine.

[ MARASI ONE ][ BUSINESS BAY ][ 54 PERIODS ]
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Computed, never typedComputed,nevertyped

One base case, held immutable. Every figure traceable to a formula and to the engine run that produced it.Onebasecase,heldimmutable.Everyfiguretraceabletoaformulaandtotheenginerunthatproducedit.

223.3Profit · AED m
33.1Project IRR · %
41.7Equity IRR · %
355.1Peak fund · AED m

The rules the otherTherulestheother

RERA escrow, off-plan milestones, VAT and service-charge recovery — computed on the monthly period line.RERAescrow,off-planmilestones,VATandservice-chargerecovery—computedonthemonthlyperiodline.

Data resident in the UAEDataresidentintheUAE

tools don’t model.toolsdon’tmodel.

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01 — The session

One conversation, start to committed.Oneconversation,starttocommitted.

A working session with the Feasly analyst, from the first question to a governed model. Scroll to run it.AworkingsessionwiththeFeaslyanalyst,fromthefirstquestiontoagovernedmodel.Scrolltorunit.

Step00 · The session
Marasi One · Working SessionFeasly Engine
New working sessionThe analyst is ready
You

​

Feasly Analyst

Structured: three towers on a retained podium. Staged collections, RERA escrow applied. Nothing is written until you confirm.

Feasly Engine
Base caserun c60d2c94
Profit, undiscountedAED 0.0m
Project IRR0.0%
Equity IRR0.0%
Peak fundingAED 0.0m
Every figure traces to a formula
Feasly Engine · run c60d2c94 · engine rev 1325db75
You

​

Feasly Engine · Sandbox
Test · Construction +10 percentrun 4e532bb5
ProfitAED 223.3m(AED 15.0m)
Project IRR33.1%(2.2 pts)
Total costAED 250.0m+AED 15.0m
Base untouched · Sandbox only
You

​

Feasly · Governed write
CommitAccepted
Total costwas AED 250.0mAED 265.0m
Ask the analyst anything…

Keep Excel. Lose the formulas.KeepExcel.Losetheformulas.

Marasi One · Inputs.xlsxFeasly · run 4e532bb5
B12fxFeasly Engine · run 4e532bb5
ABC
2Residential NSA15,000sqm
3Podium NLA4,000sqm
4Construction GFA20,000sqm
5Residential sale rate25,000AED /sqm
6Podium rent2,400AED /sqm /yr
7Pre-sales open25month
8Construction rate8,250AED /sqm
9Timing54periods
10StartJan 2026
Outputs · locked · written by Feasly Engine
12ProfitAED 208.3m(AED 15.0m)
13Project IRR30.9%(2.2 pts)
14Total costAED 265.0m+AED 15.0m
Inputs · Marasi OneOutputsEvidence
A workbook showing editable input cells above engine-written output cells. The outputs are locked and each carries the id of the engine run that wrote it.
[ 01 ]

Inputs stay in unlocked cells you edit. Outputs come back locked, written from a kept engine run.Inputsstayinunlockedcellsyouedit.Outputscomebacklocked,writtenfromakeptenginerun.

[ 02 ]

Change one number and the whole deal reruns. No macros, no hidden formulas, nothing to reconcile.Changeonenumberandthewholedealreruns.Nomacros,nohiddenformulas,nothingtoreconcile.

02 — Live compute

Move one number.Moveonenumber.

Every stop on this slider is a separate engine run. Drag it and the run id changes with the numbers — nothing here is interpolated from a formula in your browser.Everystoponthissliderisaseparateenginerun.Dragitandtherunidchangeswiththenumbers—nothinghereisinterpolatedfromaformulainyourbrowser.

AED 165.0m
AED 120.0mAED 235.0m
Project IRR17.8%
ProfitAED 121.0m
Margin on GDV19.5%
Peak fundingAED 465.2m
run 77be756e·engine 08bd2dac

Illustrative model. Not a customer project or market valuation.

03 — Base vs test

Test it. Don’t touch the base.Testit.Don’ttouchthebase.

A test is its own run against an immutable base. Switch between them and the base column does not move — because it is never recomputed.Atestisitsownrunagainstanimmutablebase.Switchbetweenthemandthebasecolumndoesnotmove—becauseitisneverrecomputed.

Base case compared with the selected test scenario
MeasureBaserun c60d2c94 · lockedTest · Completion +6 monthsrun 965dae9aChangeTest less base
ProfitAED 223.3mAED 210.3m(AED 13.1m)
Project IRR33.1%29.9%(3.2 pts)
Equity IRR41.7%36.8%(4.9 pts)
Peak fundingAED 355.1mAED 367.7m+AED 12.6m
Interest paidAED 62.2mAED 75.2m+AED 13.1m
Total costAED 250.0mAED 250.0m·
BaseTestChange
Profit
AED 223.3mAED 210.3m(AED 13.1m)
Project IRR
33.1%29.9%(3.2 pts)
Equity IRR
41.7%36.8%(4.9 pts)
Peak funding
AED 355.1mAED 367.7m+AED 12.6m
Interest paid
AED 62.2mAED 75.2m+AED 13.1m
Total cost
AED 250.0mAED 250.0m·
base run c60d2c94 · locked  ·  test run 965dae9a

Four runs, one study: base c60d2c94 · time 965dae9a · cost 4e532bb5 · market 53c972c2 · all computed by engine rev 1325db75. Base is never recomputed by a test.

Frequently askedFrequentlyasked

  • An operating system for real-estate capital. You describe a scheme in plain language, the engine builds the model, and you edit it like a spreadsheet — except the outputs are computed rather than typed. It is built for GCC institutional development, not adapted from a generic template.

  • It replaces the formulas, not the file. Inputs stay editable and exportable; outputs lock once the engine has run and carry the run id that produced them. Change a single number and the whole deal recomputes — no macros, no hidden cells, no broken links three sheets away.

  • Every figure traces back to a formula, a period cell and an engine revision. Click a number and you get the source row. Nothing is rounded into place and nothing is hardcoded. Bring a deal you already know the answer to and judge the numbers yourself — that is the only test worth passing.

  • RERA trust-account escrow with void caps applied per period; off-plan collection curves that follow the real milestone schedule rather than a smooth assumption; VAT across residential first supply, commercial lease and bare land, with recovery modelled per line; and service-charge recovery split between owner and tenant on the period axis.

  • Yes — that is the core of it. The base case is immutable and carries its own run id. A test runs in a sandbox as a separate run, so you can compare deltas side by side, then either commit it to the base model or discard it. Every commit is versioned and every version can be rolled back.

  • In the UAE. Every write is governed, attributed and reversible, and provenance is retained for the life of the model. Sub-processors and residency detail are published rather than described on request.

  • No. It is an illustrative study — three residential buildings on a retained podium in Business Bay, run over 54 monthly periods from January 2026. It is not a customer project and not a market valuation. It exists so that the numbers on this page are real engine output rather than a mockup.

  • Access is by introduction and there is no trial tier. You bring one live deal and model it against the engine with us. In exchange, founding terms are held as the platform scales — the pricing you start on is the pricing you keep.

Let's talk.Let'stalk.

Feasly®

Institutional-grade feasibility for GCC real estate. Every number computed by a deterministic engine and traceable to a formula.

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