One number, one rule: how easily could you sell? Here is exactly how we answer it — in plain English first, then the full math. No black box. Every figure traces to official data anyone can re-derive.
A community where 500 homes resold last year is far easier to exit than one where 5 did. The Langmoor grade is that idea — real resale activity — made fair and comparable across all of Dubai. A higher grade means a deeper, busier resale market, so if you ever need to sell, there are real buyers. Nothing more, nothing less.
Completed homes that actually changed hands on the open market — not off-plan launch hype.
A wave of new towers completing isn't real demand. We discount supply-heavy areas so they can't look more liquid than they are.
More genuine resale depth → a higher grade, from Aaa (deepest) down to Caa (thinnest).
Same letters you know from credit ratings. A community grade is on an absolute scale; a building grade ranks it among all Dubai towers — why they differ →
A cheap, busy market out-grades an expensive, quiet one — and that's the point. Prestige and price show up in our PSF and yield figures, never in the grade. We earn no commission, list no property, and take no fee on any deal — so the number has no reason to flatter anyone. It answers the one question an owner actually cares about: if I needed to sell, is there a real, repeating market here?
We count only secondary (Ready) resales over the trailing window and deliberately exclude off-plan from the depth count — a launch selling out off-plan proves primary demand, not that you can exit later. Off-plan enters in one place only: the maturity discount. Source: official Dubai Land Department open data, AED, May 2025 – June 2026.
Why discount maturity? A handover wave makes a brand-new district look liquid — thousands of first-sales and quick flips. Maturity (resales ÷ off-plan) catches it: where new supply dwarfs true resale, the score is marked down so supply can't masquerade as exitability.
A community is graded on its absolute liquidity score; a building by where its liquidity ranks among all ~2,072 Dubai buildings. One tower trades far less than a whole district, so scoring buildings on the community scale bunched them all at the bottom — the percentile fix lets the most-traded towers earn Aaa/Aa and actually separates them. A building "Aa" means top-tier among buildings, like a corporate Aaa and a sovereign Aaa each rated within their own universe.
| Grade | Threshold | Meaning |
|---|---|---|
| Aaa | 84+ | Deepest, most liquid |
| Aa | 74+ | Very deep & stable |
| A | 64+ | Established, liquid |
| Baa | 55+ | Solid mid-market |
| Ba | 46+ | Adequate, thinner |
| B | 38+ | Shallow |
| Caa | < 38 | Thin / early |
| Grade | Percentile | Meaning |
|---|---|---|
| Aaa | top 2% | The most-traded towers in Dubai |
| Aa | next 7% | Very deeply traded |
| A | next 14% | Established, liquid |
| Baa | next 22% | Solid mid-pack |
| Ba | next 25% | Adequate, thinner |
| B | next 18% | Shallow |
| Caa | bottom 12% | Thinnest-traded |
Bands re-calibrate each monthly refresh as the building cohort shifts. Thinly-traded buildings (under ~15 resales) are most sensitive — one extra sale can cross a band — so weight 20+-resale grades most heavily.
The pure liquidity grade above stays exactly as it is — that purity is the point. The Investment Grade sits on top of it: a published, weighted blend of five normalised dimensions, every component shown on the page so it's fully reproducible. It never replaces the liquidity grade.
Weights renormalise to whatever dimensions a place has. Price-stability = how tight and consistent its resale prices are (an efficient market prices steadily). A building inherits its community's location dimensions and contributes its own liquidity — so two towers in one community can score differently on what truly separates them: how actively each one trades.
Langmoor Accessibility — traffic-aware drive-time from each community to Dubai's key hubs (DIFC, Downtown, DXB, Marina and more), percentile-ranked across communities into a 0–100 score and an A+–D band. Langmoor Amenity density — a weighted count of everyday amenities (metro, schools, supermarkets, healthcare, parks, retail) within 1.5 km of the community centre. Both are derived from Google Maps Platform data and stored as our own scores only; they feed the Investment Grade and are shown beside it — never inside the pure liquidity grade.
Alongside the grade we publish, where the data supports it: sale PSF (median resale AED/sqft), villa PSF, and net yield = (annual rent PSF − service-charge PSF) ÷ sale PSF, from official Ejari rents and Mollak service charges. These carry prestige and income — kept deliberately separate so they never inflate the liquidity grade. Where coverage is thin, the figure shows "—" rather than a guess.
A rating you can stress-test is a rating you can trust. Every figure is reproducible from the same official data, baselines included, re-run each refresh — if the grade ever stopped tracking realised liquidity, we'd publish that too.