| Railroad (UK) railway (US) | Chemin de fer |
| Rain water | Eau de pluie |
| Real estate | Immeuble (bien immobilier) |
| Realm | domaine |
| Reassessment | Requalification |
| Redevelopment | Convertion (bâtiment); |
| Reified | consideré l'abstré comme concret |
| Relinquish | renioncer à/ delaisser |
| Rent | Loyer; louer |
| Repealable | Précaire |
| Rescind | Annuler |
| Restoration | Restoration |
| River basin authority | Agence de bassin (hydrographique) |
| Road | Chemin (voie-route) |
| Roadway; road surface (UK) | Chaussé |
| Rubbish; refuse (UK); | Ordure ménagère |
| Rubble | décombre |
| Rust belts | Friches industrielles |
