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A mere increase of 600 vacant rental units would be enough to push up Cambridgeโsย vacancy rate to quell the increase in housing costs in here, Northeastern economics professor Barry Bluestone said today in response to questions asked at Mondayโs wide-ranging โroundtableโ of the Planning Board and City Council.
But substantially more than 600 new units would have be builtย to result in 600 vacant units โ it’s not clear exactly howย many.
Councillor Leland Cheung cited the work of Bluestone, a Cambridge resident, on housing, noting that housing prices are driven by vacancy rates.
Chairman of the planning board Hugh Russell replied, โI would be very curious to know how much housing Barry Bluestone thinks we have to create in order to get the vacancy rates to get affordable housing. Because I donโt think we can do it.โ
โI mean we could do it โ we could put up 50 Rindge Towers,โ Russell said, referring to a 504-unit trio of 22-story towers in North Cambridge, โbut I know we donโt want to do that.โ
Bluestone responded today, saying he targets a rental vacancy rate of about 5 percent โto keep rents from rising faster than inflation,โ and that Cambridgeโs rate, according to the U.S. Census Bureau, is about 3 percent (or a five-year estimate of 2.2 percent for 2008-12). Bluestone said that below 3 percent vacancy, rents rise very rapidly.
With Cambridgeโs census-estimated 29,000 rental units, it would only take 600 new vacant units to raise the rate to Bluestoneโs target. โNow, 600 is not that much,โ he said.
Of course, Bluestone continued, if those 600 units were immediately occupied, the vacancy rate would drop back down โ but maybe not all the way. โWeโre now seeing in other communities where the vacancy rates have risen, their rents have stabilized,โ he said.
Bluestone said he had been talking to Boston Mayor Marty Walshโs staff and wanted to bring together the mayors of Cambridge, Somerville and Boston to work with local universities and institutions to build more attractive housing for 20- to 34-year-olds, a demographic responsible for 74 percent of local population growth in the past decade. Bluestone calls this project โMillennial Villages.โ
Roundtable topics

Mondayโs roundtable was the first of two special meetings to share ideas and improve working relations between the council and board. The two-hour meeting, which was not televised or recorded by the city, focused on abstract roles of the groups and was short on specifics. It gave a template for a more directed discussion when the groups reconvene together at 5:30 p.m. Jan. 12.
While there was no public comment, about 30 residents attended and listened to elected officials pose questions to the volunteer planning experts appointed by City Manager Richard C. Rossi, with occasional responses from Rossi and Assistant City Manager Brian Murphy, who leads the cityโs planning department.

Most of the meeting was questions from the council to the board, with board members explaining their thinking and advising the council to let them know if changes are wanted, pointing out the council writes the rules โ the cityโs ordinances โ and has the power to change that.
It was also the public debut of three board members: Louis J. Bacci Jr.; Mary T. Flynn; and Thacher Tiffany. The newcomers were generally quiet, though Flynn spoke and praised the discussion as โvery, very useful.โ With respect to the upcoming master planning effort, Flynn said, โWe canโt wait too long โฆ in the process to figure out what the tradeoffs are, what the direction is trying to be.โ Flynn asked the council to give planners direction โearly on.โ
Councillor Marc McGovern expressed his concerns that the council needed to understand the work of the board: โSo much of what we do is intertwined. We can either support each other or undercut each other,โ he said. โIf weโre setting [policies and ordinance] in a vacuum โฆ and itโs really not something thatโs going to be helpful or work for you, we need to know that.โ
โWhere should we best be focusing our efforts?โ Cheung asked.
Board member Tom Sieniewiczย replied with a focus on vision. He picked up an example of high school students in a protest march to Harvard Square that had been raised earlier by vice mayor Dennis Benzan and continued it: โWhat if the vision was there was a place to assemble close to the center of government? There are a lot of the vacant lots in Central Square; you can begin to describe a vision,โ he said. Sieniewicz said that during the master planning process the council will โfind pearls,โ and could โchampion a particular vision.โ
Sieniewicz also suggested other things beyond vision that mattered: the well-being of the citizenry, a concern about social responsibility (including affordable housing) and a focus on sustainability. Sieniewicz, who also sits on the cityโs Net Zero Task Force, noted that it would be bringing forth recommendations soon โthat I think youโll find very compelling.โ
โA master plan that just says housing is the priority, although thatโs really important, is not a vision โ is not an urban design master plan,โ Sieniewicz said.
Russell also noted that when the board sees problems with the ordinance, they highlight them to the staff, and expect the staff to bring back an analysis that can be passed on to the council.

Neighborhood participation
McGovern brought up an often-repeated concern about neighborhood participation in the Planning Board process and requiring developers to meet with neighbors in advance of the special permit process. McGovern had sponsored a policy order in September to require this, but tabled it at the request of community activists who wanted to work on the process and language.
H. Theodore Cohen, vice chairman of the board, told the council that the board is very much aware of these concerns, and how by the time a special permit application comes to the planning board, โgenerally things are fairly frozenโ:
Starting a process earlier with the neighborhood will certainly improve things. The ordinance and our rules and regulations have said we highly encourage this. Weโre now interpreting that to say, except in an unusual circumstance: You must meet with the neighborhood groups earlier, and we will be working on changing the rules to make it very explicit that thatโs what has to happen.
But Nancy Ryan, on behalf of the Cambridge Residents Alliance, has pushed for a stronger requirement. After the meeting, Ryan said she wanted a more formal mechanism written into the zoning ordinance, not just the Planning Boardโs rules, which they can change at any time.
In a Nov. 10 letter to the city manager copied to the board and council, Ryan and co-authors asked the city to form a Neighborhood Advisory Council for each special permit project. Each would include up to nine affected residents, with some nominated by the local neighborhood association, and meet two or three times to review the project.
Ryan said she had โhoped for much more concrete discussion about the neighborhood review processโ she had proposed.
She also said that the board does not now make a practice of asking developers to enumerate the neighborhood outreach they have done.
Work by city planners necessary
Rossi noted that โsometimes the Planning Board gets blamed for any deficiencies in the city around planning issues,โ and that more work may be necessary within the city administration to handle planning issues.
โAbout 99 percent of the planning done in the city is done by people who work for [the city]. Our role in planning is not to direct the planning efforts, but to comment on the results of those studies and to try to bring some common sense and a sense of justice and equity to whatโs going on,โ Russell said. โWe represent the tip of the iceberg.โ
Russell emphasized that in many cases, the questions that go into planning studies are critical to defining their outcome. โWho decided what was studied? Who decided what questions got asked? What were the tradeoffs?โ
Russell asked that in the master planning process, the cityโs planning department should bring forward to the council and board โtheir assumptions and questions at the start.โ Because โif you donโt ask the right questions, weโre not going to get the right answers.โ
Public reaction
Reactions to the roundtable were generally positive.
Bacci, a new board member, said โthere were a lot of good thoughts.โ
Steven Cohen said he thought the council was serious, thoughtful and open-minded. โIt was excellent to get to know each other professionally and personally, and to exchange ideas and to discover that weโre all on the same wavelength,โ he said. โitโs going to take work and dialogue.โ
Lee Farris, an Area IV resident, said she was really glad it happened, and that โthe question of tradeoffs is really the key question, and it did get surfaced. I have for a long time been through so many city meetings, they never work on tradeoffs, generally speaking. To me thatโs the essence of what needs to be worked on.โ
But Jan Devereux, of the Fresh Pond Residents Alliance, said Tuesday that she was worried: If projects coming to the board are โfairly frozenโ on their first viewing, โit struck me that by focusing months of energy of improving the Planning Boardโs procedures instead of scrutinizing the deficiencies and dysfunctions of CDDโs planning department, we have been rearranging the deck chairs on the Titanic โฆ If the City Councilโs band keeps playing for a few more roundtables there will be no need for a master plan โ the ship will already have sunk.โ
Councillor Nadeem Mazen said he thought the meeting was โexactly halfwayโ along the continuum between lip service and functional change, but that he hoped an outcome of this meeting would be concrete bullet items for the January follow-up.
Pam Winters, who has just retired from the Planning Board, said she thought the meeting was โgreat,โ and that a lot of good points were raised, but that the discussion wasnโt as โmeatyโ as it could have been.
Ryan said she was โhoping for more specificity.โ
This story was updated Dec. 3, 2014, to add the second paragraph as a means to clarify Barry Bluestoneโs prescription for Cambridge housing costs.



Haven’t we been adding units at quite a fantastic rate lately? It doesn’t seem to have had any downward pressure on rents. There are some good arguments for just the opposite in fact. Developers are not going to build themselves out of more profit. Why would they? Given the nature of the employment and housing markets in Cambridge, I don’t think we are going to be able to build our way out of this. The market will not fix this.
I agree with Mark. These developments are financed by REITs; global capital is flowing into the metro Boston housing market in pursuit of the highest possible return. If developers see their profit shrinking they’ll build elsewhere — or they’ll try to extract more favorable zoning and special permits from the city, which is putting all its eggs in the inclusionary zoning basket to get a relative handful of affordable units out of all this new density.
One topic that did not come up: the obligation of the universities, namely MIT, to house the roughly 6,000 grad students and post docs who are contributing to the low vacancy rate driving up rents across the area.
In our rush to build “millennial villages” let’s not forget that there’s an acute shortage of housing that families can afford. Many families reluctantly leave Cambridge to find housing but return or pass through daily as commuters, contributing to transit and traffic congestion. Both board members and councillors expressed this concern for families. Yet when the board recently approved special permits for the 93-unit development at 75 New St — directly across the street from Danehy Park, as family-friendly a location as any — they did not press the developer to increase the number of 3 BR units. Instead they actually praised the project for offering as many as 15%, while about 60% of the units are studios and 1 BRs. From a marketing standpoint, it might have made sense for the developer to differentiate this building from all the other new developments in the Alewife area serving up small units for millennials, but there’s less profit is in building larger units.
With decades of stagnation behind us there is pent up demand for housing. It may be true that demand in Cambridge is insatiable, but I doubt that is true. Right we’re experiencing a boom, and due to archaic zoning regs, resident bickering, and a real lack of vision we are tangled up in a seemingly religious battle to determine who can and can’t live in Cambridge. So yes, we have been building lots of residential in certain parts of the city. In other parts, arguably much more desirable, we’ve built nothing in decades. We won’t return to 1975, but with a strong drive centered around attainable goals we can put a dent in costs and slow down the humongous up tick in costs. I do not see, nor has anyone offered to show/explain, how building less reduces the cost of housing.
Building some amount of new housing is good and desirable but every discussion seems fixated on the numbers to the detriment of everything else – including how the development adds to the existing neighborhood. Simply throwing units onto the market with no practical end goal won’t solve this problem – or even help. We can’t look at housing as a simple commodity, nor can we simply trust that developers are interested in the broader goal of making the city better.
I completely agree John S. This is where leadership comes in.