45 Milk ST
Office · Boston · 02110
At a glance
45 Milk ST in Boston, MA is listed on the Boston property roll as “Office”, parcel ID 0304662000. The roll records 88,113 sq ft of building area, 9 floors, a 1908 build year and an assessed value of $31,610,000. It last sold for $21,000,000 in Jun 2013.
The building's own benchmarking filing
Energy performance
From the building's own filing under its city's benchmarking ordinance. An ENERGY STAR score of 75 or above means the building outperforms three quarters of comparable buildings nationally. It is a self-reported figure, verified by the city only to the extent the ordinance requires.
Recorded transfers — county roll + state sale file
Sale history
| Recorded | Price | Qualification | Source | Instrument |
|---|---|---|---|---|
| Jun 2013 | $21,000,000 | not rated | County roll | — |
Prices are the consideration recorded in Boston's public property records. Where a qualification code exists it is the assessor's judgement of whether a transfer was arm's length; transfers without one appear unrated rather than assumed clean. Whether a building is on the market today, and at what price, is not a public record and is not shown here — asking prices, listings and lease terms live in private commercial databases.
Boston assessment roll
Parcel record
| Field | Value |
|---|---|
| parcel ID | 0304662000 |
| Site address | 45 Milk ST |
| Land use (DOR) | 346 — Office |
| Building area (actual) | 88,113 sq ft |
| Floors / units / buildings | 9 / — / — |
| Lot size | 0 sq ft |
| Year built | 1908 |
| Zoning (primary) | — |
| Land value | — |
| Building value | — |
| Total assessed value | $31,610,000 |
Recorded owner (assessment roll)
SDCO 45 MILK ST OFFICE INC
Owner mailing address: PO BOX 4900, SCOTTSDALE, AZ, 85261
19 Boston office properties share this owner mailing address →
Commercial property is usually held one building per entity; a shared mailbox is how the roll reveals a portfolio. It is evidence of common ownership, not proof.
Location
- Address
- 45 Milk ST
- City
- Boston
- ZIP
- 02110
Within ~650 m
Nearby office buildings
No other office parcels within ~650 m.
How does 45 Milk ST compare with other Boston office buildings?
At 88,113 sq ft, 45 Milk ST is about 31% larger than the average office building on the Boston roll, which comes to 67,328 sq ft across 1,046 buildings.
Its assessed value works out to $359 per square foot of building area, against $469 across all office floor area on the roll.
The last recorded sale priced it at $238 per square foot.
Does the owner of 45 Milk ST hold other Boston office property?
19 Boston office properties (19 parcels, 2.5M sq ft) are recorded to 16 owner entities sharing this parcel's tax-bill mailing address. A shared mailing address is evidence of common ownership, not proof of it.
What has happened at 45 Milk ST recently?
1 recorded transfer is on file for this parcel, the latest dated Jun 2013.
The building files energy-benchmarking disclosures — 1 report year are matched to this parcel.
What does “Office” mean for this parcel?
The Boston roll classifies parcel ID 0304662000 as “Office” (use code 346). BuildingCensus includes a parcel in its office census when the roll gives it an office-class use, so the label is the county's, not an inference.
Frequently asked questions
Who owns 45 Milk ST?
The recorded owner on the Boston assessment roll (current) is SDCO 45 MILK ST OFFICE INC. Owner mailing address on file: PO BOX 4900, SCOTTSDALE, AZ, 85261.
How big is 45 Milk ST?
The Boston roll records 88,113 sq ft of building area, 9 floors, a build year of 1908. It sits on a 0 sq ft lot.
What is the assessed value of 45 Milk ST?
$31,610,000 on the Boston roll. Assessed values are taxable-roll figures, not market prices.
When did 45 Milk ST last sell?
The last recorded transfer was in Jun 2013 for $21,000,000 ($238 per square foot).
What is the parcel ID for 45 Milk ST?
Parcel ID 0304662000, site address 45 Milk ST, Boston. It is the key to look the parcel up in the MassGIS L3 standardized parcels with the city assessment roll (Boston).
More around 45 Milk ST
Everything here comes from public records, and public records go stale. If you know better, say so.
Data provenance — public records only
- Boston — MassGIS L3 standardized parcels with the city assessment roll (owner names, mailing addresses, stories, assessed values, last recorded sale). Boston publishes no universal business roll, so no tenant layer is possible from public records here.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Working with Boston office parcels? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
Dataset updated . Source: Boston assessment roll, parcel ID 0304662000.
About this data
Source: MassGIS L3 standardized parcels with the city assessment roll (Boston), as published September 20, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “45 Milk ST, Boston, MA (parcel ID 0304662000)”, https://buildingcensus.com/offices/boston/office-building-762e0a3f (data as of September 20, 2026).