According the Federal Home Finance Agency’s Home Price Index, home values are now off just 12.5 percent from their April 2007 peak nationwide.  This, after a half-percent monthly increase in prices in May, on average.

Given the state of the market since April 2007, the Home Price Index results are a positive for both the housing market and the economy, but we have to remember that May’s half-point increase is an average, and not specific to a particular area.

In contrast to “national markets”, the real estate markets in which you and I live are decidedly local.  It’s a major difference and the distinction renders the Home Price Index somewhat less important. 

After all, the HPI doesn’t account for housing activity in individual neighborhoods like Meadowville Landing , nor does it track value across cities like Fort Lee. Instead, it summarizes data in giant chunks of geography.

A quick look at the HPI regional data proves the point. Of the HPI’s 9 tracked regions, only one was within one-tenth of one percent of the national, half-point average.  The others varied by as much 1.3 percent.

As a sample:

• Mountain Region : + 1.7 percent
• New England : + 0.2 percent
• South Atlantic : +1.0 percent

And this is on a regional basis. The HPI’s applicability to state, city and neighborhood markets is even less appropriate.

Real estate values cannot be captured in a national survey. For home buyers and seller, what matters is the economics of a block, on a street, in a neighborhood.  That type of granularity can’t be tracked in a report like the Home Price Index.

The best place to get that data is from a local real estate agent that knows the market well.

Last week, the Case-Shiller Index reported home values up 0.8 percent across 20 tracked markets. The public-sector Federal Housing Finance Agency has reached a similar conclusion.

Reporting on a two-month lag, the government’s Home Price Index shows home values up 0.8 percent in April, buoyed by the expiring federal home buyer tax credit and low mortgage rates.  It’s a positive signal for a recovering housing market — in Chester and everywhere else.

But just because the Home Price Index says home values are rising, that doesn’t mean they are. The Home Price Index methodology is flawed on multiple fronts.

First, the Home Price Index reports on a 60-day delay. This two-month lag turns the HPI a trailing indicator for the housing market instead of a forward-looking one. If you’re a home buyer looking for direction, HPI won’t give it to you — you’ll have to get that analysis from your real estate agent.

Second, HPI only accounts for home values in which the home’s attached mortgage is backed by Fannie Mae or Freddie Mac.  As the FHA market share grows, fewer homes get included in the HPI sample set, and HPI values may be skewed high or low.

And, third, HPI doesn’t account for new home sales — only repeat ones.  This, too, eliminates a major segment of the market.

All of that said, though, the Home Price Index remains important to housing.  It’s still the most comprehensive home valuation model in print and it’s been giving strong readings since the start of year.  You can’t ignore that on any level.

It’s July and you may have missed the “rock bottom” The Highlands home prices from earlier in the year, but homes are still relatively inexpensive. Couple that with all-time low mortgage rates and home affordability looks excellent. Consider making an offer while the terms are right.

Home values fell again in January, according to the Federal Home Finance Agency’s Home Price Index. Values were reported down 0.6 percent, on average.

We say “on average” because the Home Price Index is a national report. It doesn’t capture the essence of a local market like Meadowville Landing , or even a city market like Fort Lee.

The most granular that the monthly Home Price Index gets is regional and January’s report shows that:

• Values in the Mountain states rose 2.0%
• Values in the Pacific states were flat
• Values in the East North Central states fell 1.8%

It’s hardly helpful for home buyers entering the market, or home sellers trying to properly price a home.  Furthermore, because the Home Price Index reports on a 2-month delay, its data fails to reflect the current market conditions.

Versus January — the period from which HPI data is collected — mortgage rates are lower, buyer activity is up, and the federal home buyer tax credit is closer to expiring.  These each can have an impact on housing.

Ultimately, national real estate data like the Home Price Index is best suited for lenders and policy-makers.  National data helps to identify trends that shape formal policy, but it doesn’t help you, specifically. 

Since peaking in April 2007, the Home Price Index is off 13.2 percent.