# baseray: The database of every building you could sell to

> baseray is building intelligence for insurers, solar installers, builders, trades and sales teams: one record per building in Romania and Czechia, with its shape, height, use, roof, existing solar panels, local climate and the companies registered at its address.

Building intelligence for insurers, solar installers, builders and trades: the structure, roof, local climate and registered companies of every building in Romania and Czechia.

- [Book a demo](https://baseray.ai/#cta)
- [Open the live map](https://app.baseray.ai)

## The largest non-residential buildings in Floreasca, București

| # | Building | Category | Footprint m² | Height m | Height basis | Floors | Registered office | Existing panels | Grade |
|---|---|---|---:|---:|---|---:|---|---|---|
| 1 | Bulevardul Prof. Dimitrie Pompeiu 5 | Commercial | 8,220 | 42.0 | Measured | 14 | — | None seen | A |
| 2 | Calea Floreasca 246b | Commercial | 17,054 | 18.0 | Measured | 3 | Registered office | None seen | A |
| 3 | Calea Victoriei 155 | Apartment block | 5,860 | 42.0 | Derived model | 14 | — | Not checked | B |
| 4 | Strada George Constantinescu 8 | Commercial | 8,383 | 21.6 | Derived model | — | Registered office | Not checked | A |
| 5 | Strada Gara Herăstrău 4 | Commercial | 2,311 | 78.0 | Measured | 15 | — | Not checked | B |
| 6 | Strada Barbu Văcărescu 201 | Commercial | 1,312 | 137.0 | Measured | 37 | — | None seen | A |
| 7 | Șoseaua Pipera 42 | Commercial | 2,183 | 80.0 | Measured | 20 | — | Not checked | B |
| 8 | Strada Barbu Văcărescu 309-311 | Commercial | 2,500 | 65.0 | Measured | 15 | — | Not checked | B |
| 9 | Strada George Constantinescu 3 | Commercial | 7,303 | 20.7 | Derived model | — | — | Not checked | B |
| 10 | Șoseaua Fabrica de Glucoza 9B | Apartment block | 2,599 | 51.0 | Measured | 17 | — | Not checked | B |
| 11 | Strada Doctor Calistrat Grozovici | Industrial | 9,262 | 14.2 | Derived model | — | — | Not checked | B |
| 12 | Calea Floreasca 169 | Commercial | 4,857 | 27.0 | Measured | 9 | — | Not checked | B |

1–12 of 3,224 non-residential buildings with an address, by volume.

## Countries

Live in Romania and Czechia. Eight more European countries are on the way.

- Live: Romania (RO), Czechia (CZ)
- Coming soon: Germany (DE), Greece (GR), Croatia (HR), Bulgaria (BG), Hungary (HU), Poland (PL), Slovenia (SI), Moldova (MD)

## What a building lead holds. The building’s facts, its shape and the company registered at the address, in one row.

### The building’s facts

Declared use, floors, built area, construction year and cadastral number for each building.

### The shape

Footprint, height and volume from the building’s own outline. Every height says whether it was measured or estimated, so an estimate never passes for a measurement.

### The company at the address

Companies whose registered office is the building’s exact official address. Shown as a registered office, never as ownership.

Example building facts, Bulevardul 15 Noiembrie 78, Brașov:

- Declared use: Servicii publice
- Floors above ground: 16
- Built area (m²): 35,137
- Construction year: 2022
- Cadastral number: 164176-C1

## From every building in Romania to one registered office

### 16,559,868 buildings.

In Romania and Czechia. Every building on one map, with its facts, its roof and the companies registered at its address.

_Each point is a real building, drawn from a 2.5% random sample of the baseray snapshots: Romania 25 Sep 2026 and Czechia 7 Oct 2026._

### Filter by what you can verify.

Each filter is a fact you can check, from the declared use to the company registered at the address.

Filters: Commercial, Industrial, Registered office at the address.

_Bucharest and Ilfov, from the same 2.5% sample. Highlighted points pass the filters above._

### Rank them by size.

404 of 9,582 buildings in Floreasca pass the filters. Ranked by volume, the largest comes first.

_Floreasca, Bucharest. 9,582 real footprints at their recorded heights, from the baseray snapshot of 25 Sep 2026._

### Open the record.

Footprint, height, volume and solar panels in one record.

_Calea Floreasca 246b, Bucharest. Record from the baseray snapshot of 25 Sep 2026._

### See the company registered at the address.

Linked only when its registered office is the building’s exact official address.

_Calea Floreasca 246b, Bucharest. Record from the baseray snapshot of 25 Sep 2026._

Shown as a registered office, never as ownership or occupancy.

## One record per building. Geometry, building facts, local climate and gas network in one place.

Record read from the live app: Bulevardul 15 Noiembrie 78, Brașov.

- Footprint (m²): 31,252
- Outline length (m): 253.4
- Outline width (m): 136.1
- Height: ~18.0 m
- Volume (m³): ~562,531
- Floors: 16
- Category: commercial
- Existing solar panels: None seen (In the photo from Sep 2022)

### Building facts

- Declared use: Servicii publice
- Floors above ground: 16
- Built area (m²): 35,137
- Construction year: 2022
- Cadastral number: 164176-C1

### Local climate

- Coldest / hottest day (°C): −27.6 / 35.9
- Frost days (per year): 118
- Rainfall (mm per year): 645

### Gas network

- Locality: present · 2025
- Area: no record
- Street: no record
- Address: no record
- Building: no record

- **Geometry.** Footprint, outline, height and volume. Values from a model carry a tilde, so an estimate never passes for a measurement.
- **Building facts.** Declared use, floors, built area, construction year and cadastral number.
- **Local climate.** Extremes, frost days and rainfall for the building’s location, the inputs behind heat-demand estimates.
- **Gas network.** Evidence at five levels, from the locality down to the building. Proximity is never claimed as a connection.

## Find rooftop solar leads in four steps. From a filter to a phone call, in one workspace.

1. **Filter.** Commercial and industrial buildings over 1,000 m² whose roofs were checked and show no panels.
2. **Check the photo.** A baseray model reads dated aerial photos and returns detected, none seen or unclear, with the photo date.
3. **Size the roof.** Where the roof has been modelled, you get the panel count, the capacity and the yearly yield.
4. **Call the company.** Companies are matched only through the exact official address. A registered office is not ownership.

- Commercial and industrial buildings over 1,000 m², roof checked, no panels seen, Romania: 3,464 buildings.
- Roof analysis, Bulevardul Timișoara 32, București: Max panels 224, Capacity 89.6 kWp, Yearly energy 108,025 kWh, Usable roof 439.8 m², CO₂ avoided 25,278 kg a year; confidence 0.95.

## A heat card for every building. Start from the footprint, height and volume, add the local climate, and get the figures you size a heat pump with.

Inputs: the building (footprint, height, floors, gross volume, category) and the local climate (a thirty-year average at the building, heating degree-days computed at 20/12 °C, design temperature). Outputs: annual heating demand (kWh / year), peak heat load (kW), heat-pump electricity (kWh / year), thermal assessment (per building).

This page shows the output fields only. The live app computes the values for each building.

## Building data API, MCP server and CSV export. The rows you see in the app, from your code or your AI assistant.

- Workspace API keys, created in the app
- MCP server for ChatGPT, Claude, Cursor and other assistants
- CSV export with Clay-ready columns
- Lead lists shared with your team
- `total_is_capped` tells you when to narrow the box

```http
GET /api/leads?bbox=25.97,44.33,26.23,44.54&metric=volume&limit=100&offset=0&has_solar=true
```

[Read the API reference](https://baseray.ai/docs/api) · [Connect an AI assistant](https://baseray.ai/docs/mcp)

## Questions about baseray. Coverage, data, accuracy and export.

### What is baseray?

baseray is building intelligence for insurers, solar installers, builders, trades and sales teams. It holds one record per building in Romania and Czechia: its shape, height, use, roof, existing solar panels, local climate and the companies registered at its address. You filter the buildings you want, check each one and export the list.

### Which countries does baseray cover?

Romania and Czechia are live, with every building on the map. Germany, Greece, Croatia, Bulgaria, Hungary, Poland, Slovenia and Moldova are on the way.

### What does a building record contain?

Footprint area, outline length and width, height, volume, floors and category; the declared use, built area, construction year and cadastral number where known; existing solar panels and, where the roof has been modelled, the panel count, capacity and yearly yield; the local climate and gas network; and the companies registered at the address.

### How do I find buildings without solar panels?

Filter existing solar panels on “None seen”. A baseray model reads dated aerial photos of each roof and returns detected, none seen or unclear, with the date of the photo, so you know how recent the check is. Roofs the model has not read yet show as not checked.

### Can I see which companies are registered at a building?

Yes. baseray links a company to a building only when the company’s registered office is the building’s exact official address. It is shown as a registered office, never as ownership or occupancy.

### Are building heights measured or estimated?

Each height says which. It is measured, derived from a model, worked out from the number of floors, or a default for the building category. Estimates carry a tilde, for example ~18.0 m, and the volume computed from them carries it too.

### How do I get the buildings into my CRM?

Export any list as CSV with Clay-ready columns, share lead lists with your team, or query the API with an API key from your workspace settings. The API returns the same fields as the app and sets total_is_capped when an area holds more results than one query counts.

### Can I use baseray from ChatGPT or Claude?

Yes. baseray has an MCP server: add https://api.baseray.ai/mcp to ChatGPT, Claude, Cursor or any MCP client and sign in with your baseray account. The assistant can then find the building at an address, search and rank buildings in an area, read a building’s record with the businesses registered there, and save buildings to your lead lists.

### Who is baseray for?

Solar and heat-pump installers looking for roofs and heat loads, B2B sales teams prospecting the companies registered in large buildings, and construction and insurance teams that need checked building facts.

### How current is the data?

The data is refreshed whenever the underlying national data is updated. The figures on this page come from the baseray snapshot of 25 Sep 2026 and from records read in the live app that day.

## Bring baseray to your territory. Tell us your regions and what you sell. We load the data and build your first segments with you.

- [Book a demo](https://baseray.ai/#cta)
- [Open the live map](https://app.baseray.ai)

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Building intelligence for Romania and Czechia.

Categories used: Residential house, Apartment block, Commercial, Industrial, Public, Agricultural, Unknown. Page: https://baseray.ai/#top