Decarbonize the buildings you already own.
Aterra turns existing real estate into measurable CO₂ savings through smart sensor technology, AI-driven optimization, and operational leasing. No capital expenditure, no retrofit disruption, just performance that pays for itself.
- Avg. CO₂ cut
- 32%
- Upfront cost
- €0
- Median payback
- 16 mo
Meridian Portfolio
42 assets · 1.4M m²
Carbon intensity
18.4kgCO₂e/m²
Trusted by forward-looking real estate owners and operators
The greenest building is the one that already exists. Aterra makes existing real estate perform like new, without the carbon, capital, or disruption of tearing it down.
Roughly 80% of the buildings standing today will still be in use in 2050. Decarbonizing them is the single largest, most overlooked climate opportunity in real estate, and the one with the clearest financial case.
Three ways we decarbonize existing buildings
One platform connects the measurement, the intelligence, and the financing, so sustainability happens without a capital project.
Meter every building in days, not months.
Wireless, self-calibrating sensors map energy use, occupancy, temperature, and air quality across your entire portfolio, with no rewiring and no downtime.
- Non-invasive install in under a week per asset
- Live readings streamed every 60 seconds
- Plugs into your existing meters and building systems
21.4°C
540ppm
64%
8µg
2,481 sensors reporting
Live across 42 assets and 1.4M m² of floor area, calibrated automatically.
What decarbonization delivers
One platform, measurable returns across carbon, cost, compliance, and asset value.
Lower carbon
Cut operational CO₂ by 25 to 40% across the portfolio, measured and verified in real time.
Real savings
Energy bills fall from day one and keep dropping as the models keep learning each building.
Audit-ready ESG
Automated CSRD, GRESB, and EU Taxonomy reporting, generated from primary, audit-grade data.
Healthier spaces
Cleaner air and steadier temperatures lift comfort, tenant satisfaction, and retention.
Higher asset value
Efficient, well-certified buildings earn stronger valuations and command better rents.
Future-proof
Stay ahead of tightening regulation and protect assets from stranding risk.
From data to decarbonization in four steps
No capital project, no construction crews. Just a fast path from measurement to measurable savings.
Measure
We install wireless sensors and connect your meters to baseline every asset in days.
Model
AI builds a live digital model of how each building actually consumes energy.
Optimize
Heating, cooling, and lighting are tuned continuously to remove waste automatically.
Save
You bank guaranteed savings while CO₂ keeps falling, month after month.
2,400 t
CO₂ avoided / year
Decarbonization without the capital project.
The biggest barrier to greening real estate has always been the upfront cost. Aterra removes it. We invest in the sensors, the controls, and the optimization, then share in the savings we create, so going green is cash-positive from the very first month.
- We fund, install, and operate every efficiency measure
- You share in guaranteed savings from month one
- Fully off balance sheet, with no debt and no capex
- Upfront cost
- €0
- Off balance sheet
- 100%
- Net positive
- Day 1
Upfront cost
Off balance sheet
Net positive
Sustainability that pays for itself.
Across offices, retail, and logistics, Aterra turns existing buildings into measurable climate and financial wins, without a single construction crew.
32%
Average CO₂ reduction
1.4M m²
Floor area optimized
€18M
Saved for clients to date
16 mo
Median payback period
“Aterra cut our portfolio emissions by a third in the first year, and it didn’t cost us a cent up front. It’s the rare sustainability decision the CFO loves as much as the ESG team.”
Lena Hofmann
Head of Asset Management, Meridian
Energy use since go-live
−34%
Request a demo
See exactly how much carbon and cost Aterra can take out of your portfolio. Tell us a little about your buildings and we will be in touch within one business day.
- A 30-minute walkthrough mapped to your own portfolio
- A tailored CO₂ and savings estimate for your buildings
- A clear, zero-capex rollout plan with timelines
