— The natural-light score for every home —

Know how a home
lives in the light.

Every home gets the same sun — few use it well. Dawnscore reads solar geometry, fifteen years of local climate, and the rooms themselves, and turns it into one number you can trust before you buy, sell, or rent.

Try 740 Abbot Kinney, Venice

One day, one home

6:42 AM — first light reaches the kitchen.

How it works

Three dimensions of light.
One score from 0 to 100.

Built from solar geometry, satellite imagery, and 15 years of historical weather data. The result is a single number that tells you how a home actually feels to live in.

88Brightness

Direct, indirect, and reflected illumination measured across windows, orientations, and surrounding obstructions.

78Warmth

Color-temperature shifts hour by hour — cool morning blues, golden-hour amber, dusk's pink wash.

80Constancy

Year-round consistency: cloud cover, seasonal sun angle, hours of usable daylight.

How it works

Three levels of truth.

Start from your couch. Finish at the front door. Every score tells you exactly how it was earned.

◌
Estimate Free · Instant
Type an address. We compute the sun's path over that exact lot, weigh it against 15 years of local climate, trees, and neighboring buildings — and score it in seconds.
◎
Scan At the property
Point your phone at the windows. On-device detection measures real glass, real obstructions, real orientation — room by room, in about two minutes.
✓
Verified GPS-confirmed
A scan captured on location with a GPS lock becomes a Verified Score — the badge agents put on listings, and the number buyers can take to the bank.

The report

Twelve months of light,
on one screen.

A DawnScore isn't a vibe — it's hours of usable daylight, month by month, computed from the geometry of this home and the sky it actually gets. Hover the calendar: every bar is a month, every color a quality of light.

Light calendar — sample: 214 Alder St

Why it matters

Light is the new square footage.

A north-facing one-bedroom and a south-facing one-bedroom are not the same home. We've spent decades pricing rooms by size — it's time to start pricing them by light.

~90%
of our lives are spent indoors
↳ U.S. EPA — National Human Activity Pattern Survey (Klepeis et al., 2001)
46 min
more sleep a night for workers with daytime light exposure
↳ Boubekri et al., J. Clinical Sleep Medicine, 2014
20–26%
faster learning in the most daylit classrooms
↳ Heschong Mahone Group, California Energy Commission, 1999
22 min
earlier sleep onset with more daylight at home
↳ Nagare et al., Int. J. Environ. Research & Public Health, 2021

For agents

"Bright and airy," proven.

Stop adjectives. Start evidence. Verified Scores on your listings, branded reports your clients keep, and a portfolio view of every property you've ever measured.

El Cerrito · Listed
512 Bay Laurel Ct
91
Verified
Oakland · In escrow
214 Alder St
84
Verified
Berkeley · Prospect
88 Vine Ln, #4
63
Estimate
Alameda · Listed
1310 Pearl St
78
Scan

Solar geometry

The sun's exact path over this latitude, longitude, and facing direction — sampled across 60 dates a year. Not an average. This address.

Fifteen years of sky

Historical sunshine and cloud cover for this exact location since 2010. A south window in Portland is not a south window in Phoenix.

The rooms themselves

On-device window detection measures real glass area and real obstructions. Nothing leaves your phone but the score.

Live in light.

Score your home. Score the one you're touring this weekend. Find your next address by the sun, not the floor plan.

Try 740 Abbot Kinney, Venice
Dawnscore

The natural-light score for every home.
Built in Seattle. Rated in sunlight.

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Calibrate Compass

Move your device in a figure-8 pattern to improve compass accuracy for sun tracking.

Waiting for compass data...