How Centennial housing ages, and the odor that comes with it
A rough guide by era. Individual houses vary with upkeep and updates.
- Homes from the 1970s
- Split-levels and early two-stories. Original lower-level paneling and carpet, older ductwork, sometimes original windows. Musty lower levels and long-settled smoke or cooking residue are common if not updated.
- Homes from the 1980s
- Two-stories with basements, many finished by owners over the years. Basement finishes of that era often went directly over concrete with little moisture protection.
- Homes from the 1990s
- Larger two-stories with finished basements and vaulted main rooms. Tighter construction, so indoor odors from cooking and long occupancy linger more.
- Long-time owners selling now
- Many sellers have lived in the house twenty or thirty years. Nose blindness, original carpet pad and decades in the HVAC system are typical.
What that means before listing
For a long-time Centennial owner, the most common pre-listing odor issue is not one dramatic source but accumulation. Original or second-generation carpet and pad, an HVAC system that has moved the household's air for decades, a basement finished long ago, and closets that have not been emptied in years all contribute. Buyers touring several homes in the same subdivision will notice the difference between one that has been refreshed and one that has not.
The finished basement deserves the closest look. Carpet over concrete, paneling over foundation walls, and a bathroom or wet bar added later can hide slow leaks or moisture that comes through the slab. Odor here is the one most likely to become an inspection question.
HOAs are common in Centennial subdivisions. Interior odor work generally does not need HOA approval, but dumpsters, portable storage containers and contractor parking often have rules. Check before scheduling a big clean-out.
Centennial seller checklist
- Empty and air every closet and the basement storage room
- Pull back carpet at a basement corner to check the pad and slab
- Replace the furnace filter and consider duct cleaning if the system has never been serviced for it
- Look behind basement paneling or under a wet bar sink for old leaks
- Check the bathroom exhaust fans actually vent outside, not into the attic
- Confirm HOA rules on dumpsters and storage containers
- Ask the City of Centennial whether any planned removal of finishes needs a permit
Questions to ask a provider about a Centennial home
- Is the odor coming from one source or from general accumulation?
- Which soft materials would you remove first for the biggest effect?
- Can the finished basement be checked for moisture without major demolition?
- Will duct cleaning make a difference in this system, and how will you tell?
- Can the work fit around the seller's moving date if the household is still living in the house?
General information for the Denver area, not a quote or professional advice. In an emergency, call 911.