Brussels-compliant · Wallonia coming soon

The flatshare agreement,
done properly.

The legal agreement between flatmates — separate from the lease signed with your landlord. Solid, clear, compliant. And alive: it evolves with every move-in and move-out.

Write our agreementSee an example
Fill in your details
Your details
You'll be registered as the first flatmate
First name *
Last name *
Email *
a.smet@gmail.com
Your account email — you'll sign the agreement with this address.
Place of birth *
Continue  →
Property & lease
PROPERTY ADDRESS
Street and number Required
Box Recommended
Postal code Required
Municipality Required
Lease type Required
Brussels Code art. 257-261 — determines the notice period
Main residence
Standard regime
Has the landlord given express consent? Required
Yes
No
Next  →
Signatures
0/2 signed
The agreement becomes active once everyone has signed.
Alexandra Smet
Signed
Signed on 07/07/2026
Martin Dumont
Signed
Signed on 07/07/2026
Flatshare agreement
Signed — valid
BRUSSELS-CAPITAL REGION · ESTABLISHED 3 JULY 2026
FLATMATE 1
Alexandra Smet
a.smet@gmail.com
FLATMATE 2
Martin Dumont
martin.d@yahoo.fr
ARTICLE 3 · MONTHLY RENT — €875
Alexandra Smet
60% · €525
Martin Dumont
40% · €350
AGREEMENT VALIDATED
2/2 SIGNED
Living agreement, online
PDFavailable
Separate from your landlord's lease
Legally binding e-signature
Data hosted in Europe
The difference

A PDF dies the moment it's signed.
An agreement lives with your flatshare.

Flatshares change: someone moves out, someone moves in, a rule evolves. Your agreement should keep up — without redoing everything by hand.

FREE PDF TEMPLATE
Good for one day only: signing day
Shares recalculated by hand, on the back of an envelope
No history: who agreed to what, and when?
One move-out = reprint everything and get it all signed again
The living agreement
Always up to date, accessible to every flatmate
Shares recalculated automatically with every move
Timestamped history: who agreed to what, and when
One move-out = an amendment signed in minutes
How it works

From a vague verbal agreement to a solid one, in four steps.

01
Describe your flatshare
Address, rent, charges, flatmates. We tailor the agreement to your region.
02
Answer the questions
Rent split, deposit, move-outs, shared spaces. In plain English.
03
Sign together
Everyone reviews and signs from their phone. The agreement goes live once everyone has signed.
04
Keep it alive
Something changes? An amendment, a recalculation, and everyone's back up to date.
What the agreement does

Everything a flatshare agreement should cover.

Automatic share recalculation
Every move-in or move-out updates the rent and charges split automatically — pro rata, or by your own rules.
Version-tracked amendments
Every change creates a dated, signed amendment. The full history stays available: who agreed to what, and when.
E-signatures
Everyone signs from their phone. The agreement only goes live once everyone has signed.
Liability & deposit, spelled out
Joint liability, rental deposit, notice between flatmates: the touchy subjects, settled in writing from day one.
Regional compliance

Rental law is regional. Your agreement should be too.

In Belgium, flatshare rules differ from one region to the next. We follow the regulations where you live — Brussels today, Wallonia next.

"Updated whenever the law changes."
Brussels-Capital Region
Flatshare lease & agreement compliant
Available
Wallonia
Regulatory adaptation underway
Coming soon
Flanders
Under review
Later
"

When Théo moved out, we were dreading the rent headache. The agreement recalculated the shares and generated the amendment on its own. We signed that same evening.

Ca
Camille M.
Flatshare in Saint-Gilles, Brussels
Pricing

One clear price, split between flatmates.

No subscription. You pay for the agreement once, then only when it changes.

The agreement
To get everyone on the same page, from day one.
49 €one-time
per flatshare
Guided drafting, compliant with your region
E-signature from every flatmate
PDF export of the agreement, accessible to everyone
Write our agreement
The living agreement
Every update
You only pay when the agreement changes.
6€per amendment
No subscription, no commitment.
A flatmate joins or leaves, shares recalculated
A new dated version, signed by everyone
Update a rule or an amount
Timestamped history kept forever
See an amendment example

Frequently asked questions

Get your flatshare on the same page,
in black and white.

Write your agreement in minutes. Compliant, solid, and ready to grow with you.

Write our agreementGot a question? Get in touch
© 2026 Pacte de Colocation — Bruxelles, Belgique
Pacte de Colocation — Flatshare Agreement in Brussels