Older multi-unit buildings, many variables
Capitol Hill and the nearby blocks are commonly associated with historic apartment buildings, converted houses and some newer mid-rise buildings. Whether a given building has plaster walls, steam radiators, window units or central air is something you should confirm. Ask the building manager or look at the unit itself rather than assuming from the neighborhood.
In older buildings, odor can travel through shared chases, around radiator pipes, under baseboards and through door gaps onto a shared hallway. Windows may be older and leak air, which changes how smell moves in winter and summer. A unit's smell may also change with the building's heating schedule.
Because many residents rent, the practical questions are often about the lease, the landlord's responsibilities and documentation. Check the lease language about smoking, nuisance and odor, and keep a dated record of what you observe.
Older building features versus newer ones
Features to verify in your own building, not statements about any specific one.
| Often in older buildings | Often in newer buildings |
|---|---|
| Plaster or lath walls with settled cracks | Drywall assemblies with fire-rated joints |
| Radiator or boiler heat with fewer ducts | Central or unit-based forced-air systems |
| Pipe chases that run floor to floor | Mechanical ventilation and shared exhaust risers |
| Operable, sometimes leaky, windows | Tighter windows and sealed balconies |
Things to do in a unit
- Photograph gaps around pipes, outlets and baseboards.
- Note whether odor changes when the heat or a fan is on.
- Check the hallway for a stronger smell near your door.
- Keep a log with dates and times.
- Read the lease or house rules for smoking and nuisance language.
- Write to the property manager with factual observations.
Common questions
- Can I seal gaps myself?
- Minor sealing may be fine, but ask your landlord or association first, and do not alter fire-rated assemblies.
- Does an older building mean worse odor?
- Not automatically. Older buildings have more leak paths in some cases, while newer ones can share exhaust systems. Your own observations matter more than the building's age.
- Who handles building ventilation?
- Usually the owner or management company. Ask in writing what can be inspected, and do not alter shared systems yourself.
- What if the hallway smells too?
- Note it in your log and tell management. A smell in a shared corridor suggests a building-level path rather than only your unit.
General information for the Denver area, not a quote or professional advice. In an emergency, call 911.