# Burlington, MA Multi-Family Investment Analysis: Cash Flow, Zoning, and Value-Add Spreads
Burlington doesn't cash flow. It's an appreciation-and-control market where a deep commercial tax base quietly subsidizes your carrying costs. Underwrite it like Worcester or Fitchburg and you'll walk away convinced there's nothing here. Underwrite it properly — a low tax rate, near-zero vacancy, 58,000 daytime workers against 27,000 residents — and you'll find a defensible long-hold asset with a narrow but genuine value-add channel.
Here's the math.
Burlington Investor Snapshot: September 2026
Headline metrics for investors tracking pricing, liquidity, rents, and carrying-cost assumptions in Burlington’s active suburban-commercial market.
Citywide
Median listing $$888,000
Median sold $$815,000
$ per sq ft$430/sq ft
Active listings61
Median days on market37 days
Rental properties137
Median rent$3,110/mo
What Do Multi-Family Cash Flow Numbers Actually Look Like in Burlington, MA?
Direct answer: There is effectively no tradable 2–4 unit inventory in Burlington right now — MLSPIN shows 0 active multi-family listings — so the practical cash-flow question becomes whether a single-family or condo acquisition at Burlington's price points can carry itself on market rent. At a median sold price of $777,500 for single-family and a median rent of $3,110/mo, the answer at standard leverage is no.
Start with acquisition. Primary MLSPIN data as of July 2026:
•Single-family: median sold $777,500, median DOM 23 days, 2.6 months of supply, 49 active listings, 6 closed sales.
•Condo/townhouse: median sold $950,000, median DOM 35 days, 3.1 months of supply, 14 active listings, 2 closed sales.
•All types blended: median sold $772,500, median DOM 32 days, 4.1 months of supply, 73 active listings.
•Multi-family: 0 active listings.
Price by Property Segment: July 2026 Closed Sales
Condos/townhomes posted the highest reported median sold price, while single-family and mixed all-type sales clustered in the high-$700Ks—useful for investors comparing acquisition lanes.
| Series | Label | Value |
|---|---|---|
| Median Sold Price | Single Family | $777,500 |
| Median Sold Price | Condo/Townhouse | $950,000 |
| Median Sold Price | Others / All Types | $772,500 |
Source:Repliers / MLSPIN
The condo premium over single-family is unusual, and it's worth naming. Newer townhome and condo product around the Town Center and the Mall Road corridor is trading above detached stock. For an investor that's a warning, not an opportunity — you're paying a new-construction premium into an HOA that takes a bite out of NOI before you collect a dollar.
What Does the Run-Rate Math Look Like on a Median Burlington, MA Rental?
Take the single-family median at $777,500 as your acquisition. Market rent per the citywide snapshot is $3,110/mo, or $37,320 gross annual.
Now the expense side, using figures that are actually verifiable here:
•Property taxes. Burlington's FY2026 residential rate is $8.69 per $1,000, roughly 30% below the Massachusetts statewide average of $12.40. On a median assessment of $756,050, that's about $6,570/year. It's the strongest line item in the Burlington pro forma, and it exists because the town reserves roughly 25% of its land for commercial and business use. Your tenants' employers are paying down your tax bill.
•Insurance, maintenance, capex reserve, and management. Underwrite these honestly. On a $777,500 asset at $430/sq ft, you're buying roughly 1,800 sq ft of building. Reserve accordingly.
•Vacancy. Rental vacancy in the broader market has compressed from 4.5% to 2.4%. I still model 5% because tenants move, but the empirical friction is low.
Gross rent multiplier on the median single-family lands around 20.8x. That doesn't cash flow at mid-6% financing — rates sat in the mid 6% range as of April 2026, with forecasts putting 6% as the floor for the year. A 75% LTV loan on $777,500 at that coupon eats the entire gross rent before you've touched taxes or insurance.
Conclusion on straight buy-and-hold: single-unit Burlington rentals are negative-leverage deals today. They work under exactly three conditions — you buy substantially below the median, you add a unit, or you put enough equity down that cash-on-cash stops depending on the loan constant.
Why Does Rental Demand in Burlington, MA Still Justify the Underwrite?
The rent roll is defensible in a way most Route 128 suburbs can't match. Burlington runs 2,095 businesses and 46,000 employees against 27,000 residents. Daytime population: 58,000. That's a structural, employer-anchored demand base — life sciences, tech, and corporate tenancy along Middlesex Turnpike and Wall Street — and it doesn't evaporate in a soft quarter.
For context on how renter demand is redistributing across structure types in comparable New England markets, consider the following regional indicator. One caveat up front: it comes from HUD's Comprehensive Housing Market Analysis for Burlington–South Burlington, Vermont, not Burlington, Massachusetts. Treat it as a directional read on a comparable market, not local evidence.
Rental Structure Mix Shift: 2010 vs Current
The rental base has shifted toward larger multifamily properties, with 5+ unit buildings rising from 36% to 43% of occupied rentals—an important demand signal for multifamily investors.
Single-Family Attached & Detached
Multifamily (2–4 Units)
Multifamily (5+ Units)
Other (Including Mobile Homes)
| Series | Label | Value |
|---|---|---|
| 2010 | Single-Family Attached & Detached | 21 |
| 2010 | Multifamily (2–4 Units) | 39 |
| 2010 | Multifamily (5+ Units) | 36 |
| 2010 | Other (Including Mobile Homes) | 4 |
| Current | Single-Family Attached & Detached | 20 |
| Current | Multifamily (2–4 Units) | 31 |
| Current | Multifamily (5+ Units) | 43 |
| Current | Other (Including Mobile Homes) | 6 |
In that market, two- to four-unit properties fell from 39% to 31% of occupied rentals while 5+ unit buildings climbed from 36% to 43%. Institutional supply absorbing the incremental renter. Worth watching, because Burlington, MA's own development pipeline makes the same dynamic plausible here. If it plays out locally, your 2–4 unit product competes against professionally managed apartment communities — losing on amenity, competing on price and unit size. Price accordingly. Don't assume you set the market.
One more demand signal: Burlington's housing stock is 71% single-family, 3.9% two-to-four family, and 25.4% multi-family 5+. Between 2000 and 2012 the town issued roughly 43 single-family permits annually against 0 multi-family permits. That scarcity in small multi-family is exactly why MLSPIN shows zero active listings. When one trades, it trades off-market or fast.
What Are the Zoning and ADU Opportunities for Investors in Burlington, MA?
Direct answer: Because Massachusetts' statewide ADU law now permits protected-use accessory dwelling units by right in single-family zoning districts, the highest-ROI play in Burlington is not buying a multi-family — it's buying a single-family on an adequately sized lot and manufacturing the second door yourself.
Here's where the zero-inventory problem flips from obstacle to advantage. You can't buy density in this town at a reasonable basis. You can create it.
What Is the Underwriting Case for a Manufactured Second Unit in Burlington, MA?
Run it against the numbers above. A single-family acquisition at roughly the $777,500 median produces one rent stream against a mortgage that consumes it. Add a conforming accessory unit and you've added a second rent line to fixed debt service and a fixed tax bill.
That tax bill matters enormously here. At $8.69 per $1,000, an assessment bump from an ADU addition is comparatively cheap. In a town taxing at the state average of $12.40, the same square footage carries meaningfully more annual drag. Burlington's commercial base is what makes value-add square footage economically efficient.
The constraints you need to verify parcel-by-parcel with the Building Department, before you go under agreement:
•Dimensional compliance. Setbacks, lot coverage, and maximum building height determine whether a detached unit fits or whether you're doing an interior conversion or addition. Burlington's older neighborhoods — the Winn Street and Cambridge Street side streets, the pockets near Simonds Park — carry a wide range of lot sizes. Two houses on the same block can produce completely different answers.
•Parking. The recurring deal-killer in suburban ADU underwriting. Verify the required stall count and whether tandem or driveway parking satisfies it. A lot that can't physically park the additional unit won't get a certificate of occupancy no matter how clean the setbacks look.
•Septic vs. sewer, plus water/sewer connection capacity. Verify service before you budget.
•Overlay districts and owner-occupancy conditions. Confirm whether either applies to your specific structure type.
I don't accept a listing agent's word that a property is "ADU-ready." I pull the plot plan, check setbacks against the bylaw, and call the Building Department before the inspection contingency expires. That thirty-minute call has killed more of my deals than any inspection report.
Where Is New Multifamily Density Headed in Burlington, MA?
If you're thinking about basis and exit rather than just next year's rent roll, the town's development posture is the real story.
MIX District Development Pipeline
A major mixed-use development corridor is projected to add commercial and multifamily density, reinforcing Burlington’s urban-suburban investment thesis.
Innovation District Size117 acres
Projected New Development (10-year)1.24 million sqft
Projected Multifamily Housing750,000 sqft
Proposed Middlesex Turnpike Apartments188 units
Affordable Housing Units (Proposed)28 units
The MIX District — 117 acres of mixed-use innovation zoning approved in 2025 — projects 1.24 million sq ft of new development over ten years, including 750,000 sq ft of multifamily housing. One proposed Middlesex Turnpike project alone accounts for 188 units, 28 of them designated affordable.
Two ways to read this. Hold both.
1. Bull case. Density brings retail, transit investment, and daytime population. The town already ranked first among Massachusetts suburbs for city-like living in a 40-municipality analysis. Amenity density supports rent growth on the surrounding older housing stock.
2. Bear case. 750,000 sq ft of new multifamily is competing supply. Own a dated three-bedroom split at the top of the rent range and a new lease-up two miles away with structured parking and a gym will take your tenant. Class-A delivery compresses Class-B rents before it lifts them.
My position: buy older stock at a basis where you still cash flow if rents flatten for 24 months during lease-up, then let the amenity build-out accrue to your land value on exit. Don't underwrite rent growth off the pipeline. Underwrite the pipeline as a threat and treat any rent lift as upside.
Note the fiscal backdrop too. Voters approved $100 million for a new elementary school and $46 million for a police station, then rejected a $333 million high school project after 13 MSBA funding rejections. This is a town that spends, but selectively. Expect continued pressure on the residential tax rate over a long hold, even from a low base.
How Big Is the Fixer-Upper Spread in Burlington, MA, and Does Value-Add Arbitrage Work Here?
Direct answer: Yes, but the spread is wide and lumpy rather than consistently exploitable. Burlington's H1 2026 transaction range ran from a $500k tear-down to a $2.498M new build against an average sale price of $1,055,558 — meaning the arbitrage is concentrated in full redevelopment, not cosmetic rehab.
This is the structural fact that governs value-add here: the market pays for new and discounts dated aggressively. That bifurcation is your margin.
How Big Is the Dated-Stock Discount in Burlington, MA?
The clearest single data point in the market is 12 Pleasant Street. It traded at $735k in November 2024. It resold in March 2026 at $2.275M as a 5,500 sq ft finished product. That's the Burlington redevelopment spread in one line — roughly $1.54M of gross spread against a 5,500 sq ft build.
Supporting evidence from H1 2026:
•Least expensive transaction: $500k (tear-down).
•Most expensive: $2.498M (new build).
•Median-band example: a three-bedroom split at $871k.
•30 Forbes Ave, a March 2026 tear-down, cleared at $695k.
So the land-value floor for a buildable Burlington lot sits somewhere between $500k and $695k depending on parcel and location, and finished new construction clears between $2.275M and $2.498M at the top. Your entire underwrite is the gap between those numbers minus hard costs, soft costs, carry, and a real developer's profit margin.
What Basis Test Should Investors Apply in Burlington, MA?
Price per square foot is your screen. Citywide: $430/sq ft. Median assessed value is $403/sq ft against a median residential assessment of $756,050 across 7,254 parcels. Redfin's August 2026 read put median price per square foot up +13.5% year over year — price per foot appreciating faster than aggregate price, which tells you buyers are paying up for quality and square footage, not just for an address.
The arbitrage in one sentence: the spread between $/sq ft on dated stock and $/sq ft on renovated stock is widening.
Screening rules I apply:
•Buy under the citywide $/sq ft, not under the citywide price. A $700k house at 1,100 sq ft is expensive. An $850k house at 2,600 sq ft is cheap. Median price is a distraction. Price per foot is the signal.
•Assume the assessment is low. Median assessment-to-sale ratio on 2024 qualified arm's-length sales ran 0.91. Assessed values lag the market by roughly 9%. The assessor's card is not a valuation.
•Check for over-assessment on the acquisition. 12% of sold homes were assessed at least 10% above the typical ratio, with a median implied tax difference of about $691/year. The abatement deadline is typically February 1 and the process is cheap. On a hold, $691/year capitalized at a 6% cap is roughly $11,500 of value recovered for a filing.
How Much Exit and Liquidity Risk Is There in Burlington, MA?
Don't underwrite a 2021-style exit. The market has cooled and the primary data says so plainly.
H1 2026 saw 78 single-family sales, up 7% year over year, but the average sale price of $1,055,558 was -4% against H1 2025. Average days to accepted offer stretched to 24 from 16. Countywide, time to secure an offer rose 25%. MLSPIN's July 2026 single-family median DOM sits at 23 days with 2.6 months of supply.
Read that carefully: volume up, price down, time-on-market up. A market absorbing more inventory at lower clearing prices. Underlying demand is intact — a 23-day median DOM and 2.6 months of supply are still tight-market readings, not distressed ones — but pricing power has shifted toward the buyer at the margin.
For a flipper, that means:
•Carry longer than you want to. Six months of holding costs minimum on a renovation exit. More on a ground-up.
•Price to the median, not the peak. The $2.498M comp exists. It isn't your comp unless you're delivering that square footage and that finish level.
•Protect against a flat market. If your ARV spread requires 5% appreciation during construction, you don't have a deal. You have a bet.
What Spread Does a Burlington, MA Value-Add Deal Need to Clear?
My working threshold: all-in basis — purchase, hard costs, soft costs, financing, carry, and closing on both ends — at or below 70% of a conservatively comped ARV. At Burlington's construction costs in a 6%+ debt environment, anything thinner gets eaten by one change order or one extra month of carry.
Where the math tends to work:
1. Tear-down-to-new-build in established residential precincts — highest spread, highest capital requirement, longest timeline, deepest permitting risk.
2. Dated split-levels and capes with expandable footprints — add square footage, convert unfinished basement or attic, reprice at the higher $/sq ft band. Lower risk, thinner margin, more repeatable.
3. Single-family plus conforming ADU — the only strategy here that improves cash flow rather than just realizing a capital gain. Longest hold, best risk-adjusted return for an investor building doors instead of chasing exits.
What Is the Bottom Line for Investors in Burlington, MA?
Burlington rewards patient capital and punishes anyone underwriting for immediate yield.
What works: low property taxes at $8.69/$1,000, rental vacancy compressed to 2.4%, an employment base of 46,000 workers against 27,000 residents, and a scarce small-multi-family stock at 3.9% of housing units with essentially zero listings trading.
What doesn't: a $777,500 single-family median against $3,110/mo market rent at mid-6% financing. The debt service math doesn't clear on a conventional buy-and-hold. Average sale price is off -4% year over year and days to offer have extended.
Where the return actually comes from: creating the second door, buying below the $430/sq ft citywide basis, executing redevelopment against the demonstrated $500k-to-$2.498M spread, and holding long enough for the MIX District's 1.24 million sq ft buildout to reprice the land underneath you.
If you're evaluating a specific parcel, two things belong on the table before anything else: the plot plan with setbacks, and the actual tax bill. Not the listing sheet's pro forma. The model follows from those.
