Daylight Intelligence for Rentals

Turn daylight into
a leasing
advantage.

We quantify when and how sunlight reaches bedrooms, Zoom rooms, and desks — then package it as a simple badge and scorecard prospects can trust.

Request a Daylight Audit See Sample Report

All deliverables are marketing descriptors — not medical advice, not code compliance.

sDA

Standards-aligned metrics

Unit-level

Granular, not building-wide

Photos can't show morning vs afternoon sun. Tours happen at one moment in time. "Sunny" is a subjective — and risky — claim in listings.

Two units in the same building can perform completely differently because of orientation, floor plate, and urban shading.

Mismatched daylight expectations slow lease decisions. Credible, unit-specific light data reduces tour waste and shortens vacancy.

What You Get

Productized
daylight evidence.

Every deliverable is designed to do one thing: give your leasing team and prospects credible, easy-to-read daylight data — at the unit level, not just the address.

Core Deliverable

☀️

Unit Daylight Scorecard

Time-of-day bands (morning / midday / evening) for each key room. Seasonal context included. Built on spatial daylight autonomy (sDA) and annual sunlight exposure (ASE) as technical backbone.

📊

Each scorecard shows best-use windows per room — e.g. "AM-focused Zoom room" — in language prospects instantly understand, with modeled technical data behind every claim.

🏷️

Embeddable Daylight Badge

A simple, trustworthy badge for your listing pages and property site. Copy-paste ready. Signals credibility without overwhelming prospects.

🎬

Seasonal Sunlight Clips

Short, visual proof of when light hits the desk, bedroom, or living area. Simple and persuasive for listings, social, and leasing packages.

✍️

Marketing Copy Pack

What you can claim, how to claim it, and what to avoid. Approved phrasing + a do-not-say list. Protects you legally, builds prospect trust.

🔍

On-site Spot-Check Validation

Optional premium add-on for high-stakes listings — flagship units, disputes, or repositioning plays. Field-validated against modeled outputs.

Process

Three steps.
Deployable immediately.

Intake

Address, unit plans or simple measurements, window info, and target room uses. No complex BIM files required — we work with what you have.

↳ 15-min form or call

Model + Simulate

Urban context + solar and daylight calculations using climate-based metrics. Standards-aware methodology (sDA/ASE, EN 17037 language bridge) running behind the scenes.

↳ Typical-year climate inputs

Publish

Scorecard PDF, badge embed, and listing copy — ready to deploy to your site, portal, or leasing package immediately upon delivery.

↳ Ready to go live

The Science, Simplified

Light shapes how people live — and choose.

Ocular light exposure influences circadian rhythms and sleep regulation. Field research in residences has demonstrated improved circadian alignment when daylight access increases — not in labs, but in real homes.

Separately, empirical studies have found that daylight-related variables are associated with meaningful housing price effects in real estate markets. Light isn't just wellness — it's an asset variable.

BrightUnit translates this science into daylight access descriptors: modeled data about when and how light arrives, expressed in plain language. No health claims. No compliance promises. Just credible, evidence-based information your prospects can actually use to make decisions.

Important: All BrightUnit deliverables are marketing descriptors — not medical advice, medical devices, or code/compliance reports. Occupant behavior, furniture, window treatments, and urban development can all change outcomes.

Technical Backbone — Standards-Aligned Metrics

sDA

Spatial Daylight Autonomy — The percentage of floor area that receives sufficient daylight for a specified number of hours per year. IES LM-83 family. Makes methodology legible to building-science reviewers.

ASE

Annual Sunlight Exposure — Flags areas with too much direct sun, useful for glare and thermal context alongside sDA.

EN 17037

European Daylighting Standard — Covers daylight provision, view, sunlight access, and glare. Used as a language bridge even outside formal compliance contexts.

EML

Melanopic-weighted metrics (optional) — Circadian-relevant light quantity. Used with strict non-medical disclaimers when clients opt in to wellness narratives.

FAQ

Common questions.

Can't find an answer? Reach out directly and we'll respond within one business day.

No. BrightUnit deliverables are marketing descriptors — not code compliance reports and not medical documents. They are designed to help leasing teams communicate daylight credibly, not to certify a unit against any regulatory standard.

We use a two-layer approach: leasing-friendly metrics that prospects actually understand (e.g. "≥ X hours of morning sun in this bedroom"), backed by established technical metrics — spatial daylight autonomy (sDA) and annual sunlight exposure (ASE) from the IES LM-83 family. EN 17037 is used as a language bridge for daylight provision and sunlight access framing.

Yes — and this is the whole point. Unit-level differentiation is what we're built for. Two units at the same address can perform completely differently based on orientation, floor, and urban shading. We surface exactly that difference, credibly.

We use typical-year climate inputs and urban context geometry for credible simulated estimates. All outputs are labeled "modeled daylight access" or "estimated hours of direct sun" — never absolute guarantees. Furniture, blinds, finishes, and occupant behavior all affect real-world outcomes, which is why our copy packs include a clear limitations note.

Multifamily owners and operators, build-to-rent leasing teams, student housing and senior-living operators, and flexible office or hybrid workspace providers. If you have inventory where daylight is a genuine differentiator and you want to communicate it credibly, BrightUnit is built for you.

No, and we actively help you avoid this mistake. Our marketing copy pack includes an approved phrasing guide and a do-not-say list. You can reference the science behind daylight and circadian health as context — but BrightUnit outputs are framed as daylight access descriptors, never wellness claims.

Turn daylight intoa leasingadvantage.

Productizeddaylight evidence.