The new proposal is just the most recent step in a process that reaches back almost a decade, culminating in the Master Plan (2015), the Housing Production Plan (2016) and the mixed-using zoning amendments of 2016. The Town has consistently proposed smart growth: more development along Arlington’s transit corridors to increase the tax base, stimulate local commerce, and provide more varied housing opportunities for everyone, including low and moderate income Arlingtonians. This year’s proposals are no head-long rush into change. Today’s debate is similar to the debate before Town Meeting three years ago. If anything, progress has been frustratingly slow. To realize the Master Plan’s vision of a vibrant Arlington with diverse housing types for a diverse population, we must stay the course on which we have been embarked for so long.
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by Annie LaCourt
One of the concerns people have about the current MBTA Communities zoning proposal is the effect that the increase in housing will have on the town’s budget. Will the need for new services make demands on our budget we cannot meet without more frequent overrides? Or will the new tax revenues from the new buildings cover the cost of that increase in services?
The simple answers to these questions are
- No: It will not make unmanageable demands on the budget; and
- Yes: the new tax revenue from the multi-family housing anticipated will cover the costs of any new services required.
Adopting the current MBTA Communities zoning proposal may even slow the growth of our structural deficit, as I will show in more detail using as examples some of the more recent multi-family projects that have been built in Arlington.
How Does Our Budget Work and What is the Structural Deficit?
First, some basic facts about finance in Arlington: Like every other community in Massachusetts, Arlington’s property tax increases are limited by Proposition 2.5 to 2.5% of the levy limit each year. What is the levy limit? It’s all of the taxes we are allowed to collect across the whole town, without getting specific approval from the Town’s voters. For FY 23 the levy limit is $135,136,908. $3,271,996 of that is the 2.5% increase we are allowed under the law. But also added to that is $1,202,059 of new growth, which comes from properties whose assessment changed because they were substantially improved–either renovated or by increasing capacity. When we reassess a property that has a new house or building on it, we are allowed to add the new taxes generated by the change in value of the property to the levy limit.
Property taxes make up approximately 75% of the town’s revenue. So – except for new growth – that means that the bulk of our budget can only grow 2.5% a year. Other categories of income like State Aid have a much less reliable growth pattern. If the state has a bad fiscal year, our state aid is likely to remain flat or decrease.
Expenses
On the expense side, our default is a budget to maintain the same level of services year to year. We cap increases in the budgets of town departments by 3.25% and the school budget by 3.5%, save for special education costs which are capped slightly higher.
We also have several major categories of expense that are beyond our control that increase at a greater rate than 2.5%. These include, among other things, funding our pension obligations, health insurance costs and our trash collection contract.
Structural Deficit
This difference between the increase in revenues and the increase in costs is the structural deficit. It’s structural because we can’t cut our way out of it without curtailing services severely and we can’t stop paying for things like pensions and insurance that are contractual obligations.
The question of how MBTA communities zoning will affect this is crucial. So let’s take a deeper dive, first on revenue and then on expenses.
How Will MBTA Communities Affect New Growth?
How MBTA-C zoning will affect new growth depends on what gets built and at what rate. Let’s consider some real world examples:
882 Mass Ave. used to be a single story commercial building. It was assessed at $938,000 and the owner paid approximately $9,887 in taxes annually. It has been rebuilt as a mixed use building with commercial space on the ground level and 22 apartments on 4 floors above. The new assessment is approximately $4,800,000 and the new tax bill is about $54,000.00. That means $45,000 in new growth – new property taxes that will grow at the rate of 2.5% in subsequent years.
Another example is 117 Broadway. The building that used to be at that address was entirely commercial, assessed at $1,050,000 and paid around $11,770 in taxes annually. After being rebuilt as mixed use by the Housing Corporation of Arlington, it is assessed at $3,900,000 and taxed at $43,719. 117 Broadway has commercial on the ground floor and 4 stories of affordable housing above. The new growth for this example is approximately $30,000.
What these examples show, and our assessor believes is a pattern, is that a new mixed use or multi-family building increases the taxes we can collect by as much as 400%, depending on the kinds of housing units.
So we can expect new development under MBTA Communities to increase the levy limit substantially over time, reducing the size and frequency of future tax increases.
How Will This New Housing Affect the Cost of Services?
Of course, with new residents comes a need for additional services. However, town-provided services will be impacted differently. Snow and Ice removal, for example, will not be affected at all – we aren’t adding new roads. Many other services provided by public works are like snow and ice: They would only increase at a faster rate if we added more land area or more town facilities to the base.
Services like public safety and health and human services may see gradual increases in service requests, as more people place more demand on these departments. Right now we have a patrol officer for every 850 or so residents. This means we might need to add a new patrol officer if the population increases by 850 residents. But it’s not clear that a new officer would be needed; it depends on the trends the police department sees in their data. I think of these services as increasing by stair steps: Adding a few, or even a few hundred, residents doesn’t require us to add staff to provide more services. Adding a few thousand might mean we need to add a position but we will have added a great deal to the levy limit before we need to add those positions.
Trash Collection Impact
There is one town service that sees an impact every time we add a new unit of housing – trash collection. The town spends approximately $200 per household on solid waste collection and disposal. As mentioned above, 882 Broadway has 22 new 1 bedroom and studio apartments. When that building was all commercial the businesses paid privately for trash removal. The new trash collection costs will be at least $4,400 annually. It’s possible, however, that the building will need a dumpster and that could cost up to $20,000 annually. Either way the new revenue ($45,000) outstrips the increased costs. The town is working on creative solutions for new buildings to keep this cost as affordable as possible.
What About Schools?
Regardless of new housing construction, our student population ebbs and flows. Families move in with small children who go through the school system. The kids graduate high school but their parents, now in their 50’s or 60’s, don’t move until they are much older and need a different living situation. When they sell their homes, the new owners are likely to be families with children again. We can see a pattern of boom and bust in our school population if we look back. Right now, we are seeing a drop in elementary population as this cycle plays out again. We now have 221 fewer students enrolled in the elementary schools than we did in 2019.
We account for this ebb and flow in the budget. A number of years ago, we set a policy to add a growth factor to the school budget. We increase the budget by 50% of per pupil costs for each new student. Currently that is $8800.00 per student. But the policy works in reverse as well. We reduce the budget by the same amount per child as the student population wanes. We also see increased state aid under chapter 70 when our student population grows and may see reductions if it shrinks.
Will Multifamily Homes Add Students?
The new multi-family housing generated by MBTA communities zoning may add students to our schools – but not as many as you might think. Other large multi-family developments like the Legacy apartments and the new development at the old Brigham site have not added a lot of children to the schools directly. Going back to our two example buildings, 882 Mass Ave is all studio and 1 bedroom units, so we are unlikely to see children living there. Our MBTA communities zoning, however, must by law allow new housing that is appropriate for families. So for planning purposes, it’s best to assume we will see growth in the school population.
So what will the effect of this new housing be on the school population and our budget? Given that the new housing will be built gradually, it’s more likely to stabilize our student population than precipitously increase it. The same will be true for our budget: We will see some increases in the school budget growth factor but also increases in state aid and increases in tax revenue from the new construction.
Conclusions
If we create an MBTA communities zone per the working groups recommendation or something close to that, we will see the effect on our budget over time, not immediately. Even if the zone has a theoretical capacity of 1300 additional units (total capacity minus what is already there) the development of new housing won’t be abrupt. For budget purposes, we project our long range plan five years into the future.
When we get to a year, say FY 2023, the actual state of our budget never looks exactly like the projection created five years earlier. We cannot predict the future very far out. What we can do is look back and see what the effects of previous development have been on our budget, and we can assess the risks of our decisions. Experience tells us that multi-family development doesn’t break the budget or swamp the schools, even when the developments are large. It also tells us that turnover in the population causes ebbs and flows in the school population, regardless of new development. We can say with certainty that multi-family development increases our revenues through new growth, and that past experience has been that that new growth mitigates the need for overrides.
My conclusion is that the new development that will occur if we create a robust zone that allows multi-family development by right, will at worst give us growth in our revenues that keeps pace with any increase in services we need. At best, those new revenues will outstrip the growth in expenses and help mitigate our structural deficit. The risk of allowing this new growth is low, and the rewards are worth it, in the form of new missing middle housing, climate change mitigation, and vibrant business districts fueled by new customers nearby.
Accessory Dwelling Units (aka “granny flats”)
The following information was presented to the Arlington Redevelopment Board in October, 2020 by Barbara Thornton, TMM, Precinct 16
This Article proposes to allow Accessory Dwelling Units, “as of right”, in each of the 8 residential zoning districts in Arlington.
Why is this zoning legislation important?
Arlington is increasingly losing the diversity it once had. It has become increasingly difficult for residents who have grown up and grown old in the town to remain here. This will only become more difficult as the effects of tax increases to support the new schools, including the high school, roll into the tax bills for lower income residents and senior citizens on a fixed income. For young adults raised in Arlington, the price of a home to buy or to rent is increasingly out of reach.
Who benefits from ADUs?
- Families benefit from greater flexibility as their needs change over time and, in particular providing options for older adults to be able to stay in their homes and for households with disabled persons or young adults who want additional privacy but still be within a family setting.
- Residents seeking an increase in the diversity of housing choices in the Town while respecting the residential character and scale of existing neighborhoods; ADUs provide a non-subsidized form of housing that is generally less costly and more affordable than similar units in multifamily buildings;
- Residents wanting more housing units in Arlington’s total housing stock with minimal adverse effects on Arlington’s neighborhoods.
What authority and established policy is this built on?
Arlington’s Master Plan is the foundational document establishing the validity and mission for pursuing the zoning change that will allow Accessory Dwelling Units.
Under Introduction in Part 5, Housing and Residential Development, the Master Plan states: Arlington’s Master Plan provides a framework for addressing key issues such as affordability, transit-oriented residential development, and aging in place.
The Master Plan states that the American Community Survey (ACS) reports that Arlington’s housing units are slightly larger than those in other inner-suburbs and small cities. In Arlington, the median number of rooms per unit is 5.7. There is a great deal of difference in density and housing size among the different Arlington neighborhoods. The generally larger size of homes makes it easier to contemplate a successful move to encourage ADUs.
What do other municipalities do?
According to a study (https://equitable-arlington.org/2020/02/16/accessory-dwelling-units-policies/), by 2017 65 out of 101 municipalities in the greater Boston (MAPC) region allowed Accessory Dwelling Units by right or by special permit. The average number of ADU’s added per year was only about 3. But by 2017, Lexington had 75 ADUs and Newton had 73. Both of these communities were among about 10 “as of right” municipalities in the MAPC region. This finding suggests that communities with more restrictions are less likely to see any significant affordable housing benefits.
Even in the midst of a housing crisis in this region, according to Amy Dain, housing expert, (https://equitable-arlington.org/2020/02/18/zoning-for-accessory-dwelling-units/) most municipalities still have zoning laws that restrict single family home owners from creating more affordable housing.
And this is despite the fact that, as according to Banker & Tradesman, March 10, 2020: https://www.bankerandtradesman.com/63-percent-in-greater-boston-back-adus/, 63% of people in the region approve of ADUs. California has recently passed strong pro-ADU legislation. A study by Zillow further corroborated this strong interest in communities across the US, including our region. https://equitable-arlington.org/2020/03/10/adu-popularity/.
Learn more about Accessory Dwelling Units/ “Granny Flats” here: https://planning.org/knowledgebase/accessorydwellings/

Beginning last July, 2020, the Town of Arlington and community groups in the town are sponsoring a number of webinars and zoom conversations addressing the need for affordable housing programs in Arlington. Several factors contribute to the Arlington housing situation: diversity of housing types, prices, diversity of incomes, availability of housing subsidies, rapid growth in property values that greatly exceed the rate of growth of income.
But racism, both historic and current, continues to stand out as a significant force contributing to the difficult housing situation.
One of the first public discussion in the Town on this subject was organized by Arlington Human Rights Commission (AHRC) on July 8, 2020. View it here:
The discussions on zoning have been confusing because while zoning covers ALL of Arlington’s land and the zoning bylaws for all Arlington’s zones are referenced, the key issues of greatest interest to Town Meeting are the discussions about increasing density. These discussions pertain ONLY to those properties currently zoned as R4-R7 and the B (Business) districts. These density related changes would affect only about 7% of Arlington’s land area. The map shows the specific zones that would potentially be affected. They lay along major transportation corridors.

The calculation for what is permanently affordable housing is complicated. Arlington’s affordable rate is based on a region that includes the Area Median Income (AMI) of the Cambridge-Boston-Quincy region. The rate is adjusted and reset periodically according to federal HUD guidelines. The rate is applied based on family size and on the Town’s definition of what income level is eligible for Inclusionary Housing opportunities in Arlington. In Arlington a 3 person family would qualify if their income was under 60% of AMI. At this time, that is approximately $58,000 for a family of three.
For more information, see this table of income limits from Cambridge’s Community Development Department, and this short paper on affordable housing from the City of Boston.
The cost of building a residential unit, single or multi-family, correlates directly, if not precisely, with its cost to resident tenants or owners. The following study and data (using Assessor’s data) demonstrates that higher density housing is more affordable than single-family housing. Whether you look at the median cost of all housing across the Town or the unit costs of the newer, more expensive, apartments built in the last decade, density yields lower prices. The town wide median is $438,900 per unit.
The newest projects (420-440 Mass Ave., Brigham Square and Arlington 360) range from $249k per unit to $412K per unit. These three developments alone contributed 414 new units of housing to the Town.
Discussions of “affordability” represents a spectrum of terms. Units can be affordable because zoning and market conditions allow the units to be built for less money than a single family home. Or they can be affordable because the builder has received subsidies that reduce the cost. Or they can be affordable, as in the case of inclusionary zoning, because the permission to build is contingent on at least some of the units being “permanently” (99 years) available to qualified tenants or buyers based on legal restrictions.
by Andy Greenspon
Image credit: Henry Hudson Kitson, Public domain, via Wikimedia Commons
In 2023, Lexington was one of the first towns to comply with the State “MBTA Communities” law (MBTA-C) by adding 227 acres to several multifamily overlay zones. When discussing this proposal, it was estimated to possibly generate 400-800 units in 4-10 years. However, after receiving building permit applications for about 1,100 units in the first year (including 160 inclusionary affordable units), Lexington passed Article 2 at a Special Town Meeting recently, which decreased the amount of land in these zones to approximately 90 acres. What can Arlington learn from Lexington’s experience?
Overall, Lexington’s experience shows us that developers are willing and able to build multifamily housing on large lots that aren’t very built up, and that MBTA-C can be successful in adding new housing in some circumstances. However, Arlington has few if any large, sparsely-built parcels zoned to allow multifamily housing under MBTA-C. As such, Arlington is unlikely to add significant amounts of new housing or affordable housing as a result of the MBTA-C overlay passed at Town Meeting in fall of 2023.
Parcel Size and Existing Buildings
Many of the parcels in Lexington’s MBTA-C zone are multiple acres each, are underutilized, and contain older office space. In contrast, Arlington’s MBTA-C parcels are much smaller and mostly covered with existing buildings, typically residential.
The largest development approved under MBTA-C so far in Lexington is at 3-5 Militia Drive. This land is three very large parcels containing a couple older office buildings, a previous religious institution, and giant surface parking lots. Therefore, such a property was already primed for redevelopment and the large lots allowed for 292 units to be approved. These parcels are also within walking distance of Lexington Town Center and the Minuteman Bike path, so multi-family housing on this location is a great use.
In contrast, there are no similar parcels in Arlington in the MBTA-C zone with large surface parking lots and aged office space that could be redeveloped in such a manner. One of the few parcels in Arlington that is somewhat similar to the planned parcels for redevelopment in Lexington would be the Walgreens at 324 Massachusetts Ave, 1.5 acres with a surface parking lot. However, this parcel was specifically excluded from the MBTA-C overlay along with all other business parcels to avoid displacing any existing business space. And the parcel is unlikely to be redeveloped one way or another unless Walgreens chooses to close their business and sell the parcel to a developer.
In short, compared to Lexington, Arlington is “built out” insofar as almost every parcel is utilized in some manner with high lot coverage. The original Lexington MBTA-C zone contained many parcels with low lot coverage, large surface parking lots, and underutilized office space, all attributes that make such parcels more likely to be sold to a developer to construct housing if permitted by zoning.
Last, while 1,100 units have been permitted so far, this does not mean all these units will be constructed given current financial uncertainty in the economy and high interest rates. It will also take several years for these properties to be completed and prepared for occupancy. As such, the original estimate of 400-800 units in 4-10 years (an estimate that actually widely ranges from 40 units all the way to 200 units per year) may in fact not be that far off from the final numbers once buildings are completed. The parcels most primed for redevelopment were acquired and permitted first. Finally, it is not entirely clear how many more parcels would have been redeveloped in the next 5-10 years had the Lexington MBTA-C zoning not been reduced in size.
Development Potential in Arlington
Most privately owned lots in Arlington are less than ⅓ of an acre with many much smaller, significantly limiting the amount of new housing development on any single parcel. Almost all of these lots are covered by existing buildings, and some of those buildings are condominiums. Therefore, in order for a large new construction project to occur on such parcels in Arlington’s MBTA-C multifamily zone, all of the following would have to take place:
- a single owner would have to take control of multiple lots and/or condominiums, meaning that
- multiple existing property owners would have to want to sell at the same time, or else the new owner would have to take the time and risk to assemble the property slowly, and
- the new proposed development would have to be large and profitable enough to make up for the combined purchase prices of all the properties acquired.
Meanwhile, properties in Arlington generally turn over at a fairly slow and steady pace. This is in contrast to underused large commercial properties, whose owners are more eager to sell.
With simulation modeling performed on potential rate of redevelopment, the Arlington Redevelopment Board’s 2023 Report to Town Meeting on the MBTA-C proposal projected that 15–45 parcels could be redeveloped over the next ten years, for a net increase of 50–200 new units or 5–20 per year, far fewer than even the initial Lexington housing unit construction estimates at the time of passage of their initial MBTA-C zoning.
In fact, Arlington has seen even less than the low end estimate of 5 units per year so far since our MBTA-C zoning became effective. Only a single project has been permitted so far, which would turn an existing 2-unit building into 4 units, a potential net gain of 2 housing units.
Lessons
- There is strong regional demand for housing including for multifamily units.
- Developers are currently willing and able to build when lots are available, are zoned multifamily, and aren’t already full of other buildings.
- Arlington can’t expect anywhere near as many new units with our current zoning as Lexington saw, because our MBTA-C multifamily zones are almost exclusively made up of smaller and built-up lots.
- As a result, Arlington’s current zoning won’t add much housing or affordable housing to our community, and won’t noticeably increase our tax base either.

(published June, 2019)
Overview
To solve the extraordinarily large deficit in housing for the greater Boston region, over 180,000 units of new housing should come on line in the next few years. This deficit is the result of a rapid expansion in in-migration due to new job creation, with no commensurate increase in housing production for the people taking those new jobs.
The report concludes that zoning is a primary culprit in restricting the development of an adequate housing supply, creating a “PAPER WALL” keeping out newcomers. The cost of this inadequate supply is a huge demand for housing which, in turn, bids up the price for available housing. The following “culprits” are considered: inadequate land area zoned for multi-family housing; low density zoning; age restrictions and bedroom restrictions; excessive parking requirements; mixed use requirements and approval processes. Alternative zoning models are suggested.
Elements such as “Approval Process”, “Mixed Use”, “Village Centers vs Isolated Parcels” and “Building Up or Building Out” are considered.
Researcher Amy Dain reports on two years of research into the regulations, plans and permits in the 100 cities and towns surrounding Boston. The research was commissioned by the Massachusetts Smart Growth Alliance and funded collaboratively with: Citizens’ Housing and Planning Association, Home Builders & Remodelers Association of Massachusetts, Massachusetts Association of Realtors, Massachusetts Housing Partnership, MassHousing, and Metropolitan Area Planning Council.
For the full report see: https://ma-smartgrowth.org/wp-content/uploads/2019/06/03/FINAL_Multi-Family_Housing_Report.pdf
For a power point slide presentation see: https://ma-smartgrowth.org/wp-content/uploads/2019/06/04/DainZoningMFPresentationShare2019.pdf
For the Executive Summary see: https://equitable-arlington.org/wp-content/uploads/2019/07/June-2019-Multi-Family-Housing-Report_Executive-Summary.pdf