Asoleo
Asoleo
Find my flatA real flat in Barcelona: 1,469 h of sun a year at one window and 668 h at the other.See the sample report

€19 · in two minutes · card or Bizum, no account

Everything a viewing won't show you about a flat, before you buy or rent it

The sun on every window measured with LiDAR, summer heat, noise on every façade, the building, the air, the surroundings and prices, each with its official source.

From €12 per flat, every side includedAll of Spain · €19 with LiDAR

Or check your street's sunlight for free

Across the street, at Marina 254, a flat looks right at it.

Third floor, street window, with the Sagrada Família in front. How much sun does it get? We measure it with a 3D model of the whole block, at centimetre scale.

On 21 June, at 18:40, its sun runs out. Not because of the temple: the block across the street.

From then on, no more direct sun that day. No listing says so, and a midday viewing won't show it.

12:0021 June

Window onto Carrer de la Marina
Light well

Same flat. One window gets twice as much sun as the other.

Every window has its own sundial. A viewing only shows you one hour of one day. Each dial is what the window sees: at the edge, whatever stands in front of it (for the street window, the Sagrada Família); towards the centre, the sky. The ochre arc is the sun when it comes in. Change the day and the time.

XIXIIXIIIXIVXVXVIXVIIXVIIIXIX
Window onto Carrer de la Marina
Faces south-west3 h 31 min
VIIVIIIIXX
Light well
Faces north-east1 h 52 min
10:30
Sun on the windowBuildings in the wayThe sun passes, but blocked

Window onto Calle Marina

Faces south-west, towards the buildings across the street.

1,469hours of sun a year

Some direct sun in winter
21 December2 h 39 min
20 March3 h 31 min
21 June5 h

Window onto the lightwell

Faces north-east, onto a light well.

668hours of sun a year

No direct sun in winter
21 DecemberNo sun
20 March1 h 52 min
21 June3 h 58 min

Direct sun on the centre of the window, clock time. The winter scale is measured on 21 December: no sun, little (under 1 h), some (1–3 h), quite a lot (3–5 h) and a lot (over 5 h).

We measure what your window sees.

Using ICGC LiDAR we rebuild every building and tree around the flat. From the window we cast a ray in every direction until it hits something: that's its horizon. Then we run the sun of all 365 days across it.

How we measure it

Sun coming in
The view from the south-west-facing window of the flat at Carrer de la Marina 254. The skyline opposite is its horizon, measured with LiDAR; the sun follows its real path and, when it clears the buildings, comes into the flat.

What a viewing doesn't show you about a flat.

We measure the sun on every window ourselves, with LiDAR. The rest we gather from the official sources for that flat, each figure with its source and date. These are the figures from the sample report for la Marina 254.

See the sample report

Inside the flat

What changes how it feels to live there.

  • Sun on every window

    1,469 h

    of direct sun a year on the window onto Calle Marina; 668 h on the window onto the lightwell. Measured by us

  • Sun on the terrace

    3,798 h

    of direct sun a year on the roof terrace. In summer it gets sun 100% of the time at lunch and 0% at dinner. Ask for it when you buy, at the same price. Measured by us

  • Solar heat in summer

    2.4

    kWh/m² on the glass of the window onto Calle Marina on an average July day (medium heat); 2.1 on the window onto the lightwell. It is sun on the glass, not the temperature inside the flat.

  • Noise on each façade

    60–64 dB

    at night on the window onto Calle Marina; 35–39 dB on the window onto the lightwell. Official noise map from 2022.

The building

What's behind the front door.

  • Year the building was built

    1963

    year built. 8 homes and 1 commercial unit.

  • Energy certificates

    E

    is the rating of the 2 certificates registered in the building.

  • Fibre and mobile

    3

    operators with fibre in the building, up to 1,000 Mbps; 5G in the street from 3 operators.

  • Tourist flats

    1

    registered tourist home in the building; 47 within 100 m. And we tell you whether the flat itself is listed.

The street and the neighbourhood

What you find when you step out.

  • Air quality

    25

    µg/m³ of NO₂ in the street, against 40 as the legal limit and 10 in the WHO guideline.

  • Low-emission zone

    Inside

    a low-emission zone “ZBE Rondes de Barcelona”: what it restricts and since when.

  • On foot

    2 min

    walk to the metro; supermarket 1 min, school 5 min and health centre 10 min.

  • Flooding and radon

    Outside

    the official 10, 100 and 500-year flood zones. Radon in the area: 201–300 Bq/m³.

  • Planning

    Zone 13a

    “Densificació Urbana Intensiva”, in the Plan General of 1976: what the plan allows on the plot.

  • Local prices

    1,800 €/month

    estimated rent for its 107 m². Average appraisal in the area: 4,602 €/m².

Questions for the viewing

5

questions worth asking, each backed by the figure in the report that prompts it.

Three steps, one minute.

  1. Type the address

    Find the building. We show it to you so you can confirm it's the right one.

  2. Choose your flat and where its windows face

    The list comes from the Cadastre (Catastro). If you don't know which way each window faces, we calculate every side for the same price.

    StreetLight well

  3. Pay and get your report

    By card or Bizum, no account needed. In a couple of minutes you have the report: private link, PDF and email.

    First page of the sample report

Price: one flat, all its windows.

For €19, what would take you an afternoon of searching ten official websites. And the sun on every window, which we measure ourselves.

  • All of Spain
  • Inside the flat: the sun on every window (and on the terrace, with 25 or 50 cm LiDAR), summer heat and the noise on each façade
  • The building: year built, energy certificates, fibre and mobile coverage, and tourist flats (including whether the flat itself is listed)
  • The street and the neighbourhood: air, low-emission zone, walking distances, flooding, planning and prices
  • Every window you choose, or every side if you're not sure
  • Private link, PDF and email in a couple of minutes

€19VAT included · €12 where there's no LiDAR yet

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Frequently asked questions.

What exactly is “direct sun”?

The sun lighting the outside centre of the window with nothing in the way. The brightness of an overcast day or light bouncing off the building opposite doesn't count.

How much does the report cost?

€19 where there's LiDAR (Catalonia, Navarre and the Basque Country) and €12 in the rest of Spain, VAT included. Pay by card or Bizum, no account or subscription, and the report arrives in a couple of minutes. There is a pack of 3 reports that works out cheaper per report.

Does it work in Madrid, Valencia and outside Barcelona?

Yes, everywhere in Spain, including Navarre and the Basque Country. In Madrid, Valencia and the rest of Spain the report costs €12 and the sun is calculated from the Cadastre's buildings, a simpler model: it's indicative, with a typical error of 20 to 40 min a day, and we tell you before you pay. Where we measure with LiDAR (Catalonia, Navarre and the Basque Country) it costs €19, with the margin of each resolution. For Madrid (125 neighbourhoods) and Valencia (79) there is also a free page for each neighbourhood and street with the indicative winter-sun scale: Sunlight by neighbourhood in Madrid and Sunlight by neighbourhood in Valencia.

What if I don't know which way the flat's windows face?

Tick “I don't know” and we'll calculate every side of the building for the same price. In the report you'll see each one by name: the street or the inner courtyard.

All questions · What about sun apps? Comparison · What to check before buying a flat

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of façades with sun on 21 December, middle floor

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