KARTA
01//Early access · 2026

A renovation that holds its shape.

One live workspace for the people building your home. Decisions, drawings and timeline in one place, visible to everyone, in real time.

HomeownersStudiosDesignersTrades
Calm renovated interior
P.01
52.52° N · 13.40° E
Supported by
Land BerlinKofinanziert von der Europäischen UnionHochschule für Wirtschaft und Recht BerlinStartup Incubator Berlin
Observed · Pilot
12
live pilots
Observed · Pilot
4
connected dashboards
Observed · Pilot
+18%
on-time handover
Observed · Pilot
−42%
approval cycle
02//Early access · 2026

Start where the rest of the page leads. Join the waitlist.

We're onboarding homes, studios and trades through 2026. Leave your email. We'll write when your role opens up.

Early access · 2026
Limited cohort
Be on the first list.

We're onboarding homes, studios and trades through 2026. Leave your email. We'll write when your role opens up.

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

03The chaos today

A renovation lives in a dozen places at once.

Drawings in email. Decisions in WhatsApp. Budgets in spreadsheets. Site notes on paper. Nobody holds the same picture, and nothing stays in sync.

ISSUE 01
Scattered conversations

Twelve threads, four inboxes, no record.

ISSUE 02
Late surprises

Delays and overruns appear too late to act on.

ISSUE 03
Decision drift

Approvals stay verbal, then dissolve.

The reality on site

Hundreds of small decisions, made by different people, on different days. The work happens in the gaps between them, and that is where projects get expensive.

Week 22, handover
Day 1, strip-out
Day 1, strip-outWeek 22, handover
04The Karta solution

One project. One truth. One rhythm.

Karta replaces the patchwork with a single live project, tuned to each role. Same data, the right surface for the person looking at it.

AXIS 01
One project

Brief, plans, materials, budget, schedule and people, together.

AXIS 02
One truth

Every approval, decision and status change, traceable.

AXIS 03
One rhythm

Tasks, dependencies and milestones move forward in view.

Single source
05How it works

Four dashboards.
One live project.

An approval, a task done, a new revision. Every change updates the others instantly. No re-syncing, no chasing.

STAGE 01
Brief
STAGE 02
Design
STAGE 03
Specify
STAGE 04
Build
STAGE 05
Hand over
06The four surfaces

A view tuned to each role.

Calm for the client. Canvas for the designer. Depth for the PM. One button for the handworker.

07See it in motion
Hover to play
Karta · 60-second walkthroughAudio · low volume
08Benefits

Calm has a measurable shape.

Metric
−42%
Approval cycle
Decisions captured in-app, not in chat.
Metric
+18%
On-time milestones
Dependencies surface before they bite.
Metric
−27%
Rework on site
Latest drawing always in the right hand.
Metric
100%
Audit trail
Every decision traceable to a person & date.
09Early access

Join the first cohort.

We open onboarding in waves through 2026. Owners, studios and trades get the call when their role is up next.

Early access · 2026
Limited cohort
Be on the first list.

We're onboarding homes, studios and trades through 2026. Leave your email. We'll write when your role opens up.

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

10Projects in motion

Studios, homes, ateliers.

Altbau ApartmentP.01
Altbau Apartment
Execution
City centre
Courtyard LoftP.02
Courtyard Loft
Handover
Inner district
Bauer PenthouseP.03
Bauer Penthouse
Design
Uptown
Voice from the field

We always knew where the project stood. No more chasing.

Anna H. · Homeowner

Voice from the field

Karta turned coordination from a weekly meeting into a system that runs itself.

Theo M. · Project Manager

STUDIO BAUER·ATELIER MITTE·HOFFMANN & SÖHNE·RICHTER WERKSTATT·HAUS KREUZBERG
11//Closing

A renovation should feel like something you understand.
Not something you survive.

Book a consultationContact us
Onboarding in about 10 days