As the computer age has evolved, there are a lot of users who have decided to utilize websites such as Redfin and Trulia for getting information about comparables of what price their home is worth in today’s market. They are shocked to find that when they talk to a Realtor, the values are sometimes completely different from what the website information reports.
Real estate websites have transformed the whole experience for consumers and have made what used to be private information that was difficult to get, namely listing and sales data about homes across the county, easily accessible to the masses.
However, you have to remember, these are all computer programs, and there is nothing personalizing the data to determine the accurate value for your home.
What’s involved is a computer taking the location and description of your home (the number of bedrooms, baths and square footage), from public records from the county recorder’s office, or from a recent listing, and comparing it to others that have sold recently with similar data on record. But what if nothing has sold in your neighborhood for a while?
The computer cannot necessarily distinguish differences in a property’s condition or aesthetics, nor does it correct for whether the house two blocks over was a short sale or foreclosure.
Depending on where you live, how similar homes are to one another in your area, the level of sales activity and level of accuracy in the public records for your house, the “comparables” (or comps) really aren’t that comparable at all.
If you live in a subdivision where the homes are fairly cookie-cutter, such as in neighborhoods around Terra Linda and a few neighborhoods in Novato, then you are likely to get a good set of comparables, and a value estimate that’s at least in the ballpark. But in most areas of Marin, the homes vary pretty dramatically even within a neighborhood.
For some examples of what might skew the comps, please consider:
- If your home is older and has had a lot of improvements or even additions that aren’t in the county records.
- If your homes in your area are very different from one another, you might get bad comps.
- If you live in a neighborhood very close to another neighborhood where homes have a much higher or lower value than your area. Maybe you live in a different school district or even the other side of the city limits. I live in Kentfield, which is among the better school districts in Marin. However if you go just over the hill a couple of blocks away, you are in the San Rafael school district that has good schools, but doesn’t score quite as well as Kentfield, so the property values are much lower.
- If your home is in an area where homes are very dense, the algorithm might jump over many properties to get a relatively dissimilar one even a 1/2 mile away.
- Finally, and most importantly, if your property has been well-maintained and in sparkling condition with all the great aesthetics a property can offer, but the comparable property that was recently sold was run down and in bad condition, you might get a lower comparable of what your property is really worth.
The data provided by these web sites can be very useful for trying to stay on top of home sale prices in your neighborhood or area. However, they are less useful, in my opinion, for placing values on a property.
When it’s time to sell your home, you really need a good Real Estate agent to come in and figure out what it’s worth. No computer is as accurate as a living, breathing local real estate professional who sees and sells all different types of homes in your area and knows what able and willing buyers will actually pay for them, especially in a wide a widely varying county such as Marin, where just about every property is different, even if they are next door to each other.
It’s important for sellers to interview a few listing agents to get their views on what the are properties are really worth, then to go with the agent they feel best about, not just the one who says their home is worth the most. In many cases it might not be, and the property could take a huge amount of time to sell or may not sell at all.
If you would like more information, please don’t hesitate to call me at 415-755-8919 or email me at for free advice on what your home may potentially be worth.
Posted by:
Rick Smith


Tom Verkozen
I work with a lot of buyers and I always get asked, “What are all these crazy foreclosure terms and what do they mean?”
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