
The mid-century modern house at 25 Moon Hill Road in Lexington, which is listed on the National Register of Historic Places, will be presented to the town’s Historical Commission for demolition on Jan. 15.
The contemporary build was the first of 28 houses on Moon Hill Road designed by The Architects Collaborative, or TAC, a Cambridge-based architecture firm led by Walter Gropius and deemed one of the most influential of the twentieth century.
Moon Hill Road is internationally recognized for showcasing mid-century modern architecture and informing a utopian vision for community living.
While the famous 1947 house still stands, the current owner, who requested LexObserver not use their name, has left it abandoned for approximately 10 years.

“It’s a rarity,” David Fixler, former president of Docomomo US/New England, a nonprofit dedicated to conserving buildings from the modern movement, told LexObserver. “It’s one of the most important modern-house neighborhoods in the world and the fact that it’s still intact after almost 80 years is extraordinary.”
Two local women are in the process of buying the property — Yvette Beeman, a Lexington resident, and her business partner Krassi Diehl, a general contractor.
Their original intention in purchasing the property was to preserve the historic home by renovating it.
“We thought this would be great if we could do a quick renovation but it was clear that would not be possible,” Beeman told LexObserver.
A structural engineer looked at the house and told Beeman and Diehl it would be far more expensive to renovate than build new because “the pipes burst, the foundation is unstable…[and] the floor has fallen through,” Beeman said.
“It seems to be unanimous, as far as I can tell, that it’s past salvaging,” Bill Janovitz, the seller’s agent who works with ModernMass.com at Compass Real Estate, a real estate team specializing in mid-century modern houses, told LexObserver. “It would be a great act of charity to take that on.”
Katie Flynn, a Lexington resident and founder of Hisel Flynn Architects, a Lexington-based architecture firm, thinks that demolishing a mid-century modern home is an “unfortunate outcome.” But after nearly 80 years, she said she would not be surprised if the house at 25 Moon Hill Road has reached end-of-life.
“There are times when these homes are really truly beyond their lifespan through neglect and the cost of retrofitting that home would really outweigh building a new one,” she said. “There are times where the cost benefit analysis just doesn’t check out.”
Beeman and Diehl plan to build a new mid-century modern house in the international style that will fit in with the other houses on Moon Hill Road by working with Chris Johns, a founding partner of ThoughtCraft Architects, a Somerville-based architecture firm.



Homes in the Moon Hill neighborhood
Beeman told LexObserver she lives in a mid-century modern house and appreciates the history of the architecture in town.
“Moon Hill is like our neighborhood, it’s a very tight community, it’s got a certain sort of community feel to it and I think it would be better for Moon Hill to have a family who can participate in that,” she said. “We’re trying to build something that honors the original design of the house.”
Beeman and Diehl will present the plans for their new build to the Historical Commission in hopes of receiving a permit to demolish the existing house.
Under Chapter 19 of the town’s bylaws, they may obtain that permit if: the commission believes there is no reasonable likelihood that anyone is willing to purchase, preserve, rehabilitate, or restore the property; or the commission believes the owner has made reasonable efforts to find a purchaser who is willing to preserve, rehabilitate, and restore the property, and that such efforts have been unsuccessful; or 21 months have passed.
In addition to requesting a permit to demolish the house at 25 Moon Hill Road, Beeman and Diehl are also requesting that a 21-month demolition delay not be applied.
If the town’s commission grants Beeman and Diehl a permit to demolish, they will be able to knock down the historical house and build new.
25 Moon Hill Road and its neighboring mid-century modern style houses were imagined in the 1940s by seven young architects, most of whom studied at Yale University. They wanted to collaborate to create a utopian-like community of mid-century modern homes for middle class families in Massachusetts.
They needed a leader to help them, so they approached Gropius, who was the chair of Harvard University’s Architecture Department at the time. With Gropius and his then-new architecture firm, TAC, the group found the property that became Moon Hill Road in Lexington.
Before vacating the property, the former owner of the land left a garage filled with six 1920s Moon Cars on the property, which is how the neighborhood got its name, “Six Moon Hill.”
The group liked the land’s natural beauty and vast views. It was in close proximity to the town’s center, an elementary school, Harvard Square, and train station which would give future residents access to the city and nearby suburbs.
Built on a ridge, the houses were designed to disturb the land as little as possible. That’s why many of them, including 25 Moon HIll Road, don’t have large yards, but rather, small patios. The houses also feature large glass windows in sub frames to increase the sense of space and maintain contact with the outdoors, flat roofs, vertical siding, and are painted colors that look as though they belong in nature.
The homes were built for middle class families that didn’t have servants, so many spaces are multi-purpose and integrated. For example, kitchen, dining, and play spaces are integrated so parents could supervise children while completing other household tasks. There also aren’t service entrances like there were in many colonial homes.
“They’re very transparent and kind of a diagram of the way the nuclear family was seen at that time in a progressive way,” Flynn said.
Lexington is a hub for mid-century modern homes. Neighborhoods such as Peacock Farm, Turning Mill, and Five Fields are all full of these historical homes.
“Whether or not [25 Moon Hill Road] is demolished or refurbished or added on to, my hope would be that the new design would still carry those main features of mid-century modernism,” Flynn said.

As a builder who has renovated these type of homes, I can say that they were not built to last. Cheap materials and barely adequate structural engineering are prevalent. If you look into it, one of the main goals of the designers was to cut the cost of construction, and unfortunately it shows. You need to keep ahead of flat roof leaks and rot and insect infestation, in order for these homes to last.
It’s surprising that no efforts were made to reach out to the Moon Hill neighborhood, whose insights would have added significant depth to this story. Residents could offer valuable perspectives on the architectural legacy and historical importance of these homes. The comment that the houses weren’t built to last also deserves scrutiny, as many have endured for decades, demonstrating thoughtful design and craftsmanship. A balanced approach would have included neighborhood voices to fully explore the implications of this proposed demolition.
Hi John. Appreciate your comments and have responded more fully to Matias below. I also live in a TAC house, but mine has been consistently cared for and updated by prior owners and myself. Unfortunately, little was done to 25 MH over many decades, and the house has suffered with rot, water and vegetation coming into the structure, shifting slab, crumbling foundation, black mold, etc. I wish this were not the case, but the house is truly beyond saving at this point. Please attend the hearing if you would like to hear more. And thank you for caring to comment.
I grew up in one of the first Deck Houses built, in 1959. After the second owner sold to the next door neighbor it was torn down. Not everyone enjoys the beauty of Mid Century modern homes
Hello, I currently serve as President of the Six Moon Hill Neighborhood Association.
We were surprised to see that in reporting for this article no one reached out to anyone in the organized Moon Hill neighborhood, where there are strong feelings about preservation of the neighborhood’s history.
Although two opinions were reported about the house not being salvageable we hope this assessment can be validated by a disinterested party before a judgement is made. The Moon Hill houses were indeed built on a small budget but those of us who live here have decided that we could renovate them for the needed structural stability while retaining the original Moon Hill spirit. We recommend that people interested in hearing that missing perspective attend the Historical Commission hearing on January 15th at 7 PM.
Hi Matias. Thanks for letting us know that you are the President of the Moon Hill Board. (I did try to look it up but couldn’t find any info!) We would love to speak with you, Jon Chomitz, and any other Board members before the hearing. The structural engineering report is available on the Historical Commission’s site, or I can send it to you all separately. Basically, it says that after so many years of neglect and damage, it is impossible to repair the structure. Please know that I and my architect live in Five Fields and our GC lives in Conantum in Concord, so we all appreciate the TAC and mid-century modern design, but were shocked to see the current condition at 25 MH when we first toured it with an eye toward renovation. We are hoping to build a beautiful house inspired by TAC principles and are finalizing those plans. Let me reach out to you separately and perhaps you can help me organize a discussion with your Board and a tour so you can see the situation yourself. Thanks.
Unfortunately, the Town owned Stone Building on Mass Ave, could suffer the same fate as this Moon Hill home. Very much older, but this historic Stone Building has been left vacant to decay for 20 years. Town Meeting approved $400,000 for design/architectural recommendations in March 2023, but unfortunately there has been no report presented to the Town to determine its viability. Still sitting there abandoned taking on the elements. .
I have lived on Moon Hill for about 19 years and serve on the Six Moon Hill board.
We are a vibrant neighborhood, and we share experience, resources, expertise, insight, and support to each other in order to maintain our homes.
These houses are a bit quirky, but they are very well built. The simplicity of design, and the fact that #25 has not been altered makes it a great candidate for restoration. Quite a few of them have been successfully renovated to bring them up to modern standards while preserving the intent of the TAC architects.
I find it strange that The Observer did not reach out to any of us when compiling this article. As our listing in The National Register of Historic places celebrates, we are a community, not just a collection of houses.
Hi Jon. I just replied to Matias in more detail. We would love to speak with you and any other Board members at your convenience. I will try to reach out to him to set something up. Thanks for your thoughtful comments. -Yvette
As an architect with interest in the preservation of historic properties and having served for 24 years on local historic commissions, it has always been my opinion the poor maintenance should be no excuse for allowing a teardown of National Historic Registered properties. Poor maintenance simply devalues real estate values. There should be absolutely no reward to a real estate owner pricing a historic home over and above the cost of the land it sits on. The value of a historic building is not just land, its financial value is such that investment in its preservation should be taken into account and not be a factor in a properties future.
An owner who pays the taxes on a property, for over ten years and neglects its maintenance should not be rewarded for his neglect. And anyone purchasing such a property should be prepared for the financial hit of restoration.
Thanks for the article LexObserver! I would like to clarify the first point attributed to me – I think that the *building systems* might be at the end of their life (windows, heating systems etc) but not necessarily the home. It is not preferable to demolish historically significant homes.
Hi everyone, I just want to alert you all that the engineer’s structural report is available for review at the Historic Commission’s website via the Viewpoint portal. Founded in 1972, (from their website) “Rene Mugnier Associates, Inc. is a structural engineering firm based in Cambridge, MA that specializes in the investigation, forensic, and rehabilitation of residential and commercial houses and buildings.”
Sorry — typo in my last comment. Founded in 1973, not 1972.