In order to carry out the purposes of this bylaw, the Town of Lexington is divided into zoning districts. Each zoning district is subject to both specific regulations for that district and general regulations applicable to all districts.
[Amended 3-23-2016 ATM by Art. 38; 4-25-2016 ATM by Art. 44]
2.2.1 
Governmental-Civic Use Districts
GC
Governmental-Civic Use
2.2.2 
Residential Districts.
RO
One-Family Dwelling
RS
One-Family Dwelling
RT
Two-Family Dwelling
2.2.3 
Commercial Districts.
[Amended 3-28-2018 ATM by Art. 38]
CN
Neighborhood Business
CRS
Retail Shopping
CS
Service Business
CB
Central Business
CLO
Local Office
CRO
Regional Office
CM
Manufacturing
CSX
Commercial Service Expanded
2.2.4 
Planned Development Districts
RD
Planned Residential Development
CD
Planned Commercial Development
PD
Planned Development
2.2.5 
Overlay Districts
[Amended 4-12-2023 ATM by Art. 34]
NFI
National Flood Insurance
TMO
Transportation Management Overlay
VO
Village Overlay
MFO
Multifamily Overlay
VHO
Village High-Rise Overlay
2.2.6 
Use of Symbols. Each zoning district may be designated in this bylaw or on the Zoning Map by its symbol.
2.3.1 
General. Zoning districts are shown on a map entitled "Zoning Map of the Town of Lexington" (the Zoning Map) prepared by the Planning Board and on file in the offices of the Town Clerk and the Planning Board. The district boundaries shown on the Zoning Map are part of this bylaw. Changes to the Zoning District boundaries are made the same way as amendments to the text of the Zoning Bylaw are made. The Zoning Map may include geographical features, streets, notations, and such other information to keep the map current and to facilitate orientation.
2.3.2 
Rules for Interpretation of District Boundaries. The boundaries between zoning districts are shown on the Zoning Map. If there is any difference between the boundary of a zoning district as shown on the Zoning Map and the perimeter description in the vote of the Town Meeting establishing or amending said boundary, the vote of the Town Meeting governs. In the case of uncertainty regarding a district boundary voted by Town Meeting, the following rules apply:
1. 
Where the district boundary is indicated as a street, highway, railroad right-of-way, or utility easement, the boundary is the center line of the street, highway, railroad right-of-way, or utility easement.
2. 
Where the district boundary is parallel to a street, highway, railroad right-of-way, or utility easement, the boundary is parallel to it and, unless otherwise shown, 100 feet from its center line.
3. 
Where the district boundary is shown as following a watercourse, the boundary coincides with its center line.
4. 
Where the district boundary is shown as following the shoreline of a body of water, or of a contour line, the boundary is the elevation above the datum mean sea level of such body of water, or contour.
5. 
Where the district boundary is shown as the extension of another district boundary line, the boundary is its straight-line extension.
6. 
If not resolved by the subsections above, the locations of the district boundaries are to be determined by the distances, if given, from other lines or features on the Zoning Map, or, if distances are not given, then by the scale of the Zoning Map.
7. 
If, after the application of the rules in the subsections above, uncertainty still exists with respect to the boundaries of a district, the Building Commissioner shall make a determination after seeking the advice of the Planning Board.