Early access

Where interior teams build together.

A work and communication space for designers, architects, project managers, clients and trades. See what matters, decide together, move every project forward, from brief to handover.

Get early access

Closed pilot · Berlin first · Founding studios keep the price.

DesignersArchitectsPMsClientsTrades
Calm renovated interior
Supported by
Land BerlinKofinanziert von der Europäischen UnionHochschule für Wirtschaft und Recht BerlinStartup Incubator Berlin
12
live pilots
4
connected dashboards
+18%
on time handover
−42%
approval cycle
Why Karta

From twelve tools to one shared truth.

Interior projects live in email, WhatsApp, PDFs and spreadsheets. Karta pulls that scatter into a single project everyone can trust, then keeps it in sync as work moves.

A strip out on day one. A handover twenty two weeks later. Between them, hundreds of small decisions. Karta keeps them in the light.

Week 22, handover
Day 1, strip out
Day 1, strip outWeek 22, handover
What you get

Built for the way interiors actually get built.

Six capabilities that remove the daily friction. No modules to configure, nothing to migrate.

Transparent communication

One thread per project, per room, per decision. Clients, designers, PMs and trades in the same context.

Live project visibility

Stage, budget, approvals and next action, visible to every role in real time.

Documentation that writes itself

Photos, approvals and revisions attach to the right room and person automatically.

Collaboration without meetings

Ask, approve and hand off in app. Weekly sync becomes a scroll, not a call.

Faster delivery

Dependencies surface before they bite. Milestones move because the work does.

One source, six languages

English, German, Polish, French, Spanish, Italian. One project, many teams.

Four dashboards, one project

A view tuned to each role.

Same live data, the right surface for the person looking. Open any dashboard to see it live.

How it flows

An approval, a task done, a new revision. Every change updates the other dashboards instantly. No re syncing, no chasing, no exports.

BriefDesignSpecifyBuildHandover
The replacement for email-based approvals

One workspace, in place of six.

The tools your project already runs on, without the seams. Everything decided in Karta is signed, timestamped and traceable.

Today
  • WhatsApp
  • Email
  • Drive
  • Drawings
  • Calls
  • Spreadsheets

Six surfaces, no shared truth. Approvals live in inboxes.

One connected workspace
KARTA
  • Chat
  • Drawings
  • Approvals
  • Documents
  • Tasks
  • Progress

Communication, drawings, approvals, documentation, tasks and progress in one place.

  • Official approvals
  • Timestamped decisions
  • Complete audit trail
  • Transparency
  • Security
  • Accountability
See it in motion

Sixty seconds, from brief to handover.

Hover to play
Karta · sixty second walkthroughAudio · low volume
Outcomes

Calm has a measurable shape.

Observed across the first pilot studios in Berlin.

−42%
Approval cycle
Decisions captured in app, not in chat.
+18%
On time milestones
Dependencies surface before they bite.
−27%
Rework on site
Latest drawing always in the right hand.
100%
Audit trail
Every decision traceable to a person and date.
From the field

Real projects, quietly delivered.

Altbau Apartment
Altbau Apartment
Execution
City centre
Courtyard Loft
Courtyard Loft
Handover
Inner district
Bauer Penthouse
Bauer Penthouse
Design
Uptown
We always knew where the project stood. No more chasing.
Anna H. · Homeowner
Karta turned coordination from a weekly meeting into a system that runs itself.
Theo M. · Project Manager
Common questions

Answers, before you ask.

Do we have to migrate our current tools?

No. Start with one live project in Karta and keep everything else running. Studios usually retire their spreadsheets within the first two projects.

How long does onboarding take?

About ten days. We set up your studio, import your first project and train the team on a real site, not a slide deck.

Who is Karta for?

Interior design studios, general contractors and project managers running renovations, fit outs and residential builds between 50k and 5M euro.

Where is data stored?

In the European Union. GDPR by default. Double opt in for anything marketing.

Does it work on site, on a phone?

Yes. Trades get one task, one action and the current drawing. Photos and updates sync back to every dashboard.

What does it cost?

Karta is free during the pilot phase. Pricing is announced with paid access, and it will always be per studio, not per seat.

About

A studio for people who build interiors.

Karta is built by designers, project managers and engineers who have delivered interior projects across Europe. We ship weekly with three pilot studios in Berlin and nothing lands because a roadmap said so.

Founded
2026
Home
Berlin
Pilot studios
3
Languages
6
From the journal

Field notes, quietly shared.

Early access · Pilot cohort

Join the studios shaping Karta.

We open onboarding in waves. Owners, studios and trades get the call when their role is up next. Onboarding takes about ten days.

Closed pilot · Berlin first · Founding studios keep the price.

Book a callOr write to hi@kartaspace.com →
Early access
Limited cohort
Join the first cohort.

A few details so we can onboard your studio well. We open access in waves.

Company size
Your role

No spam, no sharing. One short note when we open your role.