How a guide is made, from your first answer to its last line
Faiza and Atef live in a small flat.
Tonight they find the same flat in two adverts, at two different prices. Which one is real?
So they keep a sheet. One price was only the down payment, one flat sold in March, and no one can say what the plan really costs against cash, or whether delivery will come on time.
Then the calls. Faiza stares at yet another unknown number, while Atef, phone on his shoulder, hears out a broker about a flat they crossed off weeks ago.
A conversation first, each question with an honest way out
“Let’s start with you, not with the market. What’s bringing you to look for a home now?”
From there it follows what they say, in their own words. It puts back what it understood as a question and uses only what they confirm. The budget comes up only when they are ready, with “Rather not say” beside it, and any question can be skipped.
Your living preferences, kept apart from each search
Lasting traits - a garden, a balcony, a quiet street - stay in your profile under “Manage my living preferences”, tied to no one search. Rooms, price band and place are asked fresh for each search. Your preferences only tip the balance between homes that match equally.
Up to thirty homes, each opening its set
Each comes with up to nine like it that differ in price - ten in all - ordered by what you said and by the facts, never by who listed a home or who paid.
In full
Thirty homes, and their sets
The buyer's dossier holds at most thirty homes. Each is the middle of a set of near-identical homes - the same compound, type, rooms and handover state, sizes within a tenth of each other - and the set opens in place, ordered by asking price.
Their budget and, where they need the unit soon, their date are limits. Only they widen them, one step at a time, and each step says how many homes it adds.
The order comes from their answers and the facts - how near a home is to their places, whether it sits inside their budget, what matters most to them - and never from the firm, the developer, a paid placement or the listing date.
One guide per home, in seven sections
Every buyer gets the same facts; only the order, the depth and the line saying why move.
In full
A guide in seven sections
Each home in the dossier opens its own guide. Its seven sections:
- What the engine makes of this price
- What the payment plan really costs — against cash
- This listing's history
- Your places and the area
- What the ground shows
- What is promised, and the developer's record
- Your questions
The line that leads each section is set by the buyer's answers, and says which answer set it. Under “Why this order?”, every change their answers made is listed with its own switch, and “Show me the plain order” turns them all off.
The ground read from above, the places from maps
Each such line names its source; what is read from above says it was not checked on the ground.
In full
The ground, read from above
The guide reads the ground around a home from satellite imagery: what stands there, whether it is finished or still building, the lie of the land, green, heat and air in summer, and light at night.
Every such line is marked “Read from above, not checked on the ground” and names its source. A reading says more or less, never better or worse.
The readings come from public satellite collections read through Google Earth Engine - among them Copernicus Sentinel, Landsat, MODIS, VIIRS, Dynamic World and Google Open Buildings.
The places around it
Schools, clinics, shops, parks and what keeps late hours around the listed location are counted from open map data, and each line says it counts around the listing's own pin, not the home itself. Map data © OpenStreetMap contributors, under the Open Database Licence.
The trip to each of the buyer's own places is worked out from distance by a written rule - a road taken as 1.3 times the straight line, 60 km/h on a clear road, 25 km/h in heavy traffic - and marked inferred, never a measured time.
Every line marked, and beside, never over
A promise is quoted as it was said; what Baseera reads stands next to it, with no verdict between them.
In full
Every line marked, and beside, never over
Every line of a guide carries a mark that says how it is known. The first time a mark appears in a visit, one sentence says what it means; after that the mark alone, with how we know a tap away.
Green: more of the ground reads green than ten years ago; in summer it reads greener than in winter.
Estimated: from distance, by the engine, or read from above, not checked on the ground.
Read from above, not checked on the ground · Landsat data courtesy of the U.S. Geological Survey; Contains modified Copernicus Sentinel data 2025; Cloud Score+, Google, CC BY 4.0; read through Google Earth Engine
Whether this home stands behind a gate is not known here.
Not known: the listing and the records do not say.
Evidence sits beside a statement, never over it. A developer's promise is quoted as it was said, with whose it is and when, and what Baseera reads stands next to it, with no verdict between them.
stated a statement, quoted
inferred what is read, beside it
Version 1 is a rule-based baseline: every reading follows a written rule that can be read and checked, and no trained model sits behind it. A model is added only where recorded outcomes show it reads better than the rule it replaces.
Questions for the buyer
A guide may carry a few short questions marked “A question for you”. Each is composed from at least two of the buyer's own answers and one fact of the home, asks them something open, and asserts nothing about them. They are never evidence, there is nothing to answer and nothing is recorded, and one switch turns them all off.
An engine that shows how wide its range is, and why
It gives a figure only where enough homes like it are listed, and claims no accuracy.
In full
The valuation engine
Baseera's valuation engine gives a figure only where enough homes truly like the one asked about are listed; where there are not enough, it says so rather than guess.
Its figure is an asking level in cash terms, with a range and the named reasons the range is as wide as it is. It is unvalidated: no accuracy is claimed until its figures are checked against real sales.
The stored snapshot
Baseera's tools run on stored snapshots of sale listings: one from one listing site, listed between 10 July and 8 August 2026 in East and Central Cairo; and, for the example's figure, a second site's sale listings in Madinaty, read on 8 October 2026.
Each listing keeps the day it was read, and a guide says which reading its figure rests on.
No commission, no ranking of firms, and the buyer's number stays theirs.
We never pass the buyer's number to anyone.
No firm hears from a buyer until they send their card themselves, to three firms at most, on the days and at the hours they choose. It expires by itself, and they can withdraw it at any moment.
Buyers pay nothing.
Buyers pay nothing, ever. Firms are meant to pay only for buyers who asked to hear from them.
We never tell a buyer what to buy, or from whom.
We rank no firm, grade no developer, and take no commission on any sale. The homes a buyer is shown are ordered by what they said and by the facts, never by who listed them, so nothing is there because someone paid for it.
We never make a figure look more certain than it is.
Every figure the engine gives carries its range and the named reasons its range is as wide as it is. It gives a figure only where enough homes truly like the one asked about are listed; where there are not enough, it says so rather than guess.
We never read a buyer's device to guess who they are.
Their phone, their connection, how fast they answer: none of it is used, because each could stand in for their age or their income.