Where are the high voltage power lines?

High Voltage Power Lines Collage

High Voltage Power Lines from around the West Valley.

High voltage power lines are a “location issue” that impacts real estate values, and it sometimes elicits worry regarding safety.

High voltage power lines: how far is far enough?

Something we have spoken about recently with our clients is being far enough away so that if the tower and high voltage power lines were to fall, they’d miss your home and property. In our recent series of atmospheric rivers in January 2023, in San Jose one of these large transmission towers did fall down. It’s rare, but not impossible.

I have not seen a website that can tell us how tall any given tower is, but from what I have read online, it seems that most of them are under 200 feet tall, but some could be higher than that. In most cases, that puts the lines about 4 houses away if the lots are a typical 6,000 SF lot of 60′ across the front and 100′ deep.

We cannot speak to the concerns around potential increased risk of cancer or other problems. Each consumer should research that issue on his or her own.

Where are the high voltage power lines?

High Voltage Power lines - map - CaliforniaYears ago, I painstakingly mapped out the transmission lines from what I knew on the ground and what I could tell from tracing the Google satellite view. (You can find that link near the bottom of this article.)

Today, though, there’s something better than my map available online. The California Energy Commission has a map of the transmission lines that you can view using THIS LINK. Or click on the image at the left.

From the landing page you can zoom in or out. It covers the entire state of California – you might find it interesting to navigate around a little.

Also, a few years ago, PG&E published an interactive map where you can view the location of electric lines (I’ve filtered the imbedded map below to show Electric Transmission Lines in the South Bay), and another map of natural gas pipelines, searchable by address. This doesn’t cover the entire state, but it does cover all of the Bay Area / Silicon Valley.

The PG&E map:

On the map I hand-drew at the bottom of this article I did also include the location of schools. Quite a lot of schools do have transmission lines present.

What other location issues are there to factor in?
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High Voltage Power Lines and Public School Proximity in Los Gatos, Cambrian and Almaden

How close is too close?  For people house hunting in Silicon Valley, the quality of local public schools is often a huge priority – in fact, it’s something that most home buyers insist upon even if they intend to enroll their kids in a parochial or other private school.  Similarly, most home buyers do not want to purchase a house, townhome or condo that’s too close to high voltage power lines. Sometimes it’s just a “resale issue” to them, but other times they have health concerns and not just real estate home value concerns.

But what about the relationship between public schools and these high voltage power lines?  If your child will be at school 35 hours a week for 9 months of the year, should that be a concern, too?  So far, only two of my buyers have made that a criteria – and when they did, it became apparent that most of the schools in the border areas of Los Gatos, Cambrian and Almaden were going to be eliminated.

A couple of years back, I mapped out the high voltage power lines using Google Maps (click on link to view it).  This morning I added a few public schools to it in a “layer”.  This is not comprehensive, as I only mapped a few in these three areas mentioned already in this article.  For the named schools, many are directly adjacent to the lines (Alta Vista, Union, Leigh, Noddin) usually on the far side of the playing field) and the furthest is about 1/5 of a mile from them (Carlton).

 

High Voltage Power lines in LG Cambrian Almaden