SELF INITIATED MVP CONCEPT. VALIDATED THROUGH INTERVIEWS AND PROTOTYPE. NOT SHIPPED.

SELF INITIATED MVP CONCEPT. VALIDATED THROUGH INTERVIEWS AND PROTOTYPE. NOT SHIPPED.

Domus is a concept, not a product. It is built for someone running two to ≈10 properties as a side operation rather than a management company, usually mixing short term lets with long term leases. They are not short of information. It is spread across five places, and not one of them shows the whole portfolio at once.

CLIENT

CLIENT

Self initiated

Self initiated

INDUSTRY

INDUSTRY

PropTech

PropTech

ROLE

ROLE

UX / UI Designer

UX / UI Designer

TOOLS

TOOLS

TOOLS

Figma, Claude Code, GitHub

Figma, Claude Code, GitHub

YEAR

YEAR

YEAR

2026

2026

THE PROBLEM

THE PROBLEM

TRACKED EVERYWHERE

TRACKED EVERYWHERE

TRACKED EVERYWHERE

VISIBLE NOWHERE

VISIBLE NOWHERE

VISIBLE NOWHERE

A landlord with five properties is running five separate sets of paperwork, and no single view of any of it.

A landlord with five properties is running five separate sets of paperwork, and no single view of any of it.

Lease dates, tenants, rent that has arrived and rent that has not, insurance, fire safety, electrical certificates, each with its own expiry. It lives in a spreadsheet, an inbox, a channel manager and a folder of PDFs, and none of them know about the others. The portfolio exists, but nobody can see it.

Getting it wrong got more expensive on 1 October 2025, when Law 5170/2025 added safety certificates and a monthly declaration to short term rentals, with fines starting at 5000 euros. The obligation was never the difficult part though. Finding, in one place, what you own and what condition it is in was.

Lease dates, tenants, rent that has arrived and rent that has not, insurance, fire safety, electrical certificates, each with its own expiry. It lives in a spreadsheet, an inbox, a channel manager and a folder of PDFs, and none of them know about the others. The portfolio exists, but nobody can see it.

Getting it wrong got more expensive on 1 October 2025, when Law 5170/2025 added safety certificates and a monthly declaration to short term rentals, with fines starting at 5000 euros. The obligation was never the difficult part though. Finding, in one place, what you own and what condition it is in was.

WHAT I FOUND

WHAT I FOUND

Nobody was uninformed. Everybody was unprompted.

Nobody was uninformed. Everybody was unprompted.

Fourteen interviews with landlords running mixed portfolios. Twelve were holding it together with a spreadsheet, a notes app and memory.

The gap was not information. Every one of them could tell me what they owned and roughly what was due, given time to go and look it up. What none of them had was a single place that showed it without being specifically asked, and that spoke up before a date passed rather than after.

Fourteen interviews with landlords running mixed portfolios. Twelve were holding it together with a spreadsheet, a notes app and memory.

The gap was not information. Every one of them could tell me what they owned and roughly what was due, given time to go and look it up. What none of them had was a single place that showed it without being specifically asked, and that spoke up before a date passed rather than after.

THE DECISION

THE DECISION

Ranked by urgency. Not split by property type.

Ranked by urgency. Not split by property type.

The dashboard displays short term and long term, the overall income and the main actions that need to be taken. One list, ranked by what is most pressing, whichever side of the portfolio it comes from. Red means act, orange means be careful, green doesn't exist, so it doesn't overwhelm the user, and the first five seconds tell you whatever you have to do.

The dashboard displays short term and long term, the overall income and the main actions that need to be taken. One list, ranked by what is most pressing, whichever side of the portfolio it comes from. Red means act, orange means be careful, green doesn't exist, so it doesn't overwhelm the user, and the first five seconds tell you whatever you have to do.

Splitting by property type feels correct because it matches how the paperwork is organised. It is organised that way because two separate government systems demanded it, not because any landlord chose it.

THE SOLUTION

THE SOLUTION

ONE SCREEN

ONE SCREEN

ONE SCREEN

WHOLE PORTFOLIO

WHOLE PORTFOLIO

WHOLE PORTFOLIO

Every property, what each one has earned this year, and the certificate quietly expiring on the one you forgot about.

Every property, what each one has earned this year, and the certificate quietly expiring on the one you forgot about.

The dashboard opens on what needs action next, whichever property it belongs to and whatever kind of obligation it is. Under it sits the year so far: income recorded to date, split between short term and long term contracts, so the shape of the portfolio is readable without opening anything.

Each property then carries its own record. Contract type, listing or tenant, payments logged month by month, and every certificate with its expiry date flagged weeks before it lapses. AMA registration, fire safety, electrical, civil liability insurance, pest control. Domus files nothing and moves no money. It reads, compares and reminds, and the landlord acts. Filing then becomes a matter of copying figures from one place instead of assembling them from four.

The dashboard opens on what needs action next, whichever property it belongs to and whatever kind of obligation it is. Under it sits the year so far: income recorded to date, split between short term and long term contracts, so the shape of the portfolio is readable without opening anything.

Each property then carries its own record. Contract type, listing or tenant, payments logged month by month, and every certificate with its expiry date flagged weeks before it lapses. AMA registration, fire safety, electrical, civil liability insurance, pest control. Domus files nothing and moves no money. It reads, compares and reminds, and the landlord acts. Filing then becomes a matter of copying figures from one place instead of assembling them from four.

Refusing to handle money was the easiest decision to make and the hardest to keep. Payments are where the business model would live. The version that touches money is also the version nobody installs.

THE BUILD

THE BUILD

It left Figma. It runs in a browser.

It left Figma. It runs in a browser.

The design was shipped as a working prototype rather than a deck: a browser build that anyone can open, covering properties, certificates, payments and a notification engine derived from them.

The design was shipped as a working prototype rather than a deck: a browser build that anyone can open, covering properties, certificates, payments and a notification engine derived from them.

THE OUTCOME

THE OUTCOME

Fourteen interviews behind it. No usage data in front of it.

Fourteen interviews behind it. No usage data in front of it.

This has not launched, so there is nothing to measure. The numbers above come from what the interviewed landlords reported while working through the prototype.

This has not launched, so there is nothing to measure. The numbers above come from what the interviewed landlords reported while working through the prototype.

12 of 14

12 of 14

Landlords tracking properties in spreadsheets and memory

Landlords tracking properties in spreadsheets and memory

3 → 1

3 → 1

Design target, places to check to see everything

Design target, places to check to see everything

30m -> 4m

30m -> 4m

Time to find and fill all the information required per property in the simulation

Time to find and fill all the information required per property in the simulation

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Marko

Hi, How can I help you? :)

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Greece
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