[Amended 5-7-2016 ATM by Art. 38]
The Town of Lunenburg is hereby divided into 15 types of districts designated as:
A. 
Residence A District.
B. 
Residence B District.
C. 
Outlying District.
D. 
Recreation District.
E. 
Commercial District.
F. 
Limited Business/Residential District.
G. 
Village Center District.
[Amended 11-16-2021 STM by Art. 15]
H. 
Route 2A Overlay District.
I. 
Office Park and Industrial District.
J. 
Floodplain District.
K. 
Water Supply Protection District.
L. 
Lake Whalom Overlay District.
M. 
Tri-Town Smart Growth District.
N. 
Summer Street Revitalization Overlay District.
Said districts, except Floodplain Districts, Water Supply Protection Districts, the Route 2A Overlay District, Whalom Overlay District, and Tri-Town Smart Growth District, hereinbefore referred to are located and bounded as shown on a map entitled "Revised Protective Bylaw Map of the Town of Lunenburg, Massachusetts," dated May 3, 2008, signed by the Planning Board and filed with the Town Clerk, which map, together with all explanatory matter thereon, shall be deemed to accompany and be a part of this bylaw. The Floodplain District location is described in § 250-4.8B, Water Supply Protection District is described in § 250-4.9B, Route 2A Overlay District is described in § 250-4.10, Lake Whalom Overlay District is described in § 250-4.12B, Tri-Town Smart Growth District is described in § 250-4.13, and Summer Street Revitalization Overlay District is described in § 250-4.14B.
A. 
Where a district boundary line divides any lot laid out by deed or conveyance or shown on a duly recorded plan prior to the time such boundary line is established and in effect, the regulations applying to the less restricted portion of such lot may be considered as extending not more than 50 feet into the more restricted portion; provided, however, that the lot has frontage on a street in the less restricted district.
B. 
Where a district boundary line divides a lot not covered by the provisions of Subsection A, the more restrictive zoning district shall be interpreted as extending no further than 20 feet into the adjacent district.
No more than one building designed or available for use for dwelling purposes shall be erected or placed or converted to use as such on any lot, in a subdivision or elsewhere in the Town, without the approval of the Planning Board.