Stratum

Zoning districts · Article 46

Bulfinch Triangle District zoning

Bulfinch Triangle District is governed by Article 46 of the Boston Zoning Code. It has 2 subdistrict types. Below are the height and floor area ratio limits set out in the Article 46 text.

Last verified Oct 2026. All 4 values shown were checked against the Article 46 text in the official Boston Zoning Code published on Municode and the BPDA Article 46 PDF (bostonplans.org/getattachment/ead950a8-0fbd-46b6-8772-721cd0d634e6). This downtown article sets height and FAR in its text rather than in a dimensional table, so only those limits are shown; yards, open space and parking are set elsewhere in the Code. Large Project Review certification means a Certification of Compliance under Section 80B-6. The Bulfinch Triangle/Central Artery Area follows Article 49 instead (Section 46-5). Source: Boston Zoning Code, Article 46.

Subdistricts

Map codeSubdistrict type
General AreaBulfinch Triangle District (Section 46-6)
Bulfinch Triangle/Central Artery AreaGoverned by Article 49 (Central Artery Special District)

Section 46-6 — Maximum Building Height and Floor Area Ratio

RequirementBulfinch Triangle District
Max. building height (ft)80 ft
Max. floor area ratio (FAR)6
Max. height with Large Project Review certification (ft)100 ft
Max. FAR with Large Project Review certification78 if all ground-level street-frontage uses are Appendix A Ground Level Uses

Where the Code gives a height without a unit, we show it in feet.

Numbers in parentheses, like (1), are footnotes in the Code table. They often add conditions or exceptions, so read them in Article 46.

See what fits on a Bulfinch Triangle lot

Pull a real parcel into Stratum by address, see its setbacks and buildable area, and sketch to scale on the same canvas.

Try Stratum free

Stratum is not affiliated with the City of Boston or the Boston Planning Department (formerly the BPDA). This summary is for early design and is not a legal determination. Zoning is amended over time, and overlay districts, map amendments and the table footnotes can change what applies to a parcel. Always verify with the Boston Zoning Code and the city before relying on these numbers.