Then
In 1985, New England Hydro-Transmission Electric Company, Inc., the developer of New Hampshire's first HVDC power line running from Monroe to Sandy Pond, Massachusetts, engaged a New Hampshire property appraiser, Stewart Lamprey, to determine "what economic impact, if any, transmission lines have upon adjacent property values."
Mr. Lamprey concluded that "the proximity to overhead high voltage transmission lines has no measurable effect on property values. This appears to be true whether a property is abutting, traversed, or visually affected by a power easement" (n.p., Land Utilization Study Along the Proposed Phase 2 Transmission Line in the State of New Hampshire, Jan. 18, 1986).
No one challenged Lamprey's finding; no landowner submitted a "before and after" property value appraisal to the NH Site Evaluation Committee (SEC). Indeed, in issuing the construction permit for Phase 2, the SEC specifically noted that "no contradictory evidence was introduced to rebut Mr. Lamprey's testimony" (p.15) that the project would have negligible effect upon property values.
That was then; this is now. Following is a timeline of the very different trajectory that the discussion of property value impacts of the proposed Northern Pass project has taken between April 12, 2011 and November 1, 2012.
Now
April 12, 2011. James G. Dannis and Alexandra M. Dannis file an EIS scoping comment that consists of a certified appraisal of the impact of the proposed Northern Pass alternate route, which would bisect selected parcels of their land in Dalton. The appraiser, James C. Walker, White Mountain Appraisals, Inc., finds that the bisected parcels would decline in value from 63% - 92%. Mr. Walker notes that "parcels bisected by an HVTL line are a special case in which the entire parcel is changed dramatically. The highest and best use is often degraded from residential use to ancillary use" (p. 52), essentially to land that an abutter might wish to acquire inexpensively.
April 26, 2011. Northern Pass posts a blog, "Appraising Appraisals . . .," that questions the analysis and credibility of the Dalton appraisal. The blog links to a 2008 "study of studies" by appraiser James A. Chalmers that finds average impacts of power lines on property values in the 3% - 6% range. The studied studies draw their source material from Illinois, Washington, Nevada, California, Missouri, New York, Maine, Connecticut, Minnesota, Tennessee, several Canadian provinces, and New Zealand. (Chalmers's 2008 study was republished in an appraiser journal in 2009.)
May 27, 2011. Brian C. Underwood, appraiser and chair of the New Hampshire Real Estate Appraisal Board (NHREAB), submits a "preliminary study" commissioned by Northern Pass on the effect of HVTLs in the towns of Deerfield and Littleton. Underwood does not appraise but reviews sales and other data for eight properties in Deerfield and Littleton and concludes that there is no "market evidence . . . that would indicate diminution of property value due to high voltage transmission lines."
June 2011. Northern Pass's law firm files a complaint with the NHREAB against James Walker for acting unprofessionally and claims that his appraisal of the Dalton property may have "unfairly" harmed Northern Pass. (NHPR's Chris Jensen reports the story here.)
July 6, 2011. Northern Pass posts a second blog on property values, "Deerfield Takes a Look at the Northern Pass," that links to a Union Leader article reporting how the Town of Deerfield engaged its assessing office and contracted an engineering firm, Avitar Associates, to gauge how the proposed HVTL project would impact property values. They conclude that six properties would be "directly affected," with another 57 "marginally affected." No percentage values of decline are assigned.
July 25, 2011. Northern Pass posts a third blog on property values, "Considering property value impact." It links to another "study of studies," by Russell Thibeault, commissioned in 2011 by Northeast Utilities. Thibeault's review of the literature concludes that prior studies, including Chalmers's, find that HVTLs have a "modest or no measurable impact upon property values." Thibeault also includes the caveat that "your mileage may vary." The blog also links to Underwood's "preliminary study" report (see May 27, above.)
January 20, 2012. In its January 2012 promotional newsletter to landowners with PSNH rights-of-way, Northern Pass summarizes Underwood's study and says that its finding are consistent with prior research and published reports such as Chalmers's (2008).
May 9, 2012. Responsible Energy Action LLC (REAL) posts a blog, "Northern Pass's Appraisal Expert Recants and Zaps Northern Pass," reporting on a new, 2012 study by Chalmers that radically revises the conclusion of his 2008 "study of studies" first cited by Northern Pass on April 26, 2011. Now, Chalmers finds that rural residential land near HVTLs in Montana declines in value up to 50%.
May 25, 2012/May 29, 2012. Northern Pass posts a response to REAL's May 9th blog, revises it a few days later, and reposts it as "Revisiting Property Value Impact." The blog implies a difference between the rural residential properties in Chalmers's 2012 study (Montana) and those in New Hampshire.
October 8, 2012. Andrew Smith, Broker/Owner, Peabody & Smith Realty, Inc., Franconia NH, testifies by letter to the 361 Commission. Smith notes that the proximity of the proposed Northern Pass line "taints" actual properties in New Hampshire, either making them unmarketable or reducing values between 25% to 50%.
November 1, 2012. NHPR reporter Christopher Jensen interviews Chalmers for an article on the complaint brought by Northern Pass's law firm against James Walker's appraisal of the Dalton property. Chalmers says to Jensen that property value declines of 50% - 60% or more are credible in certain cases:
“If it is basically a view lot and your view is down the valley and you string transmission lines across that valley right in the middle of the view shed and that becomes kind of the dominant feature of the view, I can easily imagine your $200,000 second home might only be a $75,000 second home or a $100,000 second home -- something like that,” [Chalmers] said.
November 4, 2012. Northern Pass spokesman Michael Skelton dismisses the testimony of two owner/broker realtors (including Smith, Oct. 8, above) about the proposed project's impact on property values as the opinions of people "who are openly opposed to Northern Pass" and are not "licensed appraisers"