Dunstable, MA
Dunstable, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: 2/10 (10 is most accepting)
Last updated: 9.13.2024
What You Need To Know
Currently not in compliance with the Massachusetts Affordable Homes Act.
Dunstable requires homeowners to jump through a number of hoops in order to build an ADU. If you have questions about the rules, please contact us. We would be happy to help!
Type of ADU Permit Required
A special permit is required through the zoning board of appeals.
ADU Rules
Except as otherwise provided in these Zoning Bylaws, not more than one accessory dwelling unit may be established on a lot [Amended 5/15/21]. The accessory dwelling unit shall not exceed 35% of the gross living space of the existing or expanded principal structure or 1,200 square feet, whichever is greater, and have no more than two bedrooms. The expansion of an existing structure to accommodate an accessory apartment shall not increase the gross floor space of the existing structure more than 15%.
The accessory dwelling unit may be located in the principal structure or in a detached accessory structure; provided, however, that an accessory dwelling unit may be located in such detached accessory structure only where such detached accessory structure has been in existence for at least ten (10) years. The burden shall be upon the applicant to demonstrate compliance with this subsection.
An accessory apartment shall be a complete dwelling unit with a separate entry, kitchen facilities, at least one bedroom, and a bathroom with sink, toilet and bathing facilities.
The external appearance of the structure in which the accessory dwelling unit is to be located shall not be significantly altered from the appearance of a single family structure or other structure ordinarily used and included in the context of single family dwellings, in accordance with the following:
The expansion of an existing structure to accommodate an accessory apartment shall not increase the gross floor space of the existing structure more than 15%.;
Any stairways or access and egress alterations serving the accessory dwelling unit shall be enclosed, screened, or located so that visibility from public ways is minimized;
Sufficient and appropriate space for at least one (1) additional parking space shall be provided by the owner to serve the accessory dwelling unit. Said parking space shall be constructed of materials consistent with the existing driveway and shall have vehicular access to the driveway;
All construction and/or renovation shall be performed in accordance with the applicable requirements of the State Building Code.
Prior to the conclusion of a Site Plan Review the owner must provide certification, by affidavit, that one of the two dwelling units shall be occupied by the owner of the property as his/her primary residence at least six months in any calendar year. In addition, such owner shall occupy such dwelling unit as his or her primary residence as a condition of the validity of the Special Permit. The owner must also own the entire lot, any structures thereon, and both dwellings.
The initial term and subsequent extensions of a special permit for an accessory dwelling unit shall terminate upon transfer of the ownership of the premises or when the owner no longer occupies the premises as his or her residence in accordance with Section (c) i above. Upon sale or transfer of the property to a new owner, the new owner must submit an affidavit to the Building Inspector of their intention to use one of the dwellings as their primary residence. A subsequent special permit may be granted after certification by affidavit is made by the applicant to the Board of Appeals that the accessory dwelling unit has not been extended, enlarged, or altered to increase its original dimensions, as defined in the initial special permit application.
Use and occupancy of any accessory apartment other than is authorized herein shall be grounds for revocation of any permit granted under this section.
Special Permits for an accessory dwelling unit may be issued by the Board of Appeals upon a finding that the construction and occupancy of the additional dwelling unit complies with foregoing provisions and will not be detrimental to the neighborhood in which the lot is located.
Nothing in this subsection 6.2.1 shall be construed to change or reduce any dimensional or area requirements of this Zoning Bylaw relative to single family dwellings and accessory structures thereto or to allow any uses not otherwise permitted by this Zoning Bylaw, other than accessory apartments as allowed.”
Resources:
Winchester, MA
Winchester, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: 2/10 (10 is most accepting)
Last updated: 11/17/2025
Source: Town of Winchester Facebook
What You Need To Know
Winchester, like all of Massachusetts since the passage of the 2024 Affordable Homes Act, allows ADUs by right. Each town has slightly different rules surrounding ADUs, but they all must adhere to the framework outlined by the state. The rules for Winchester are outlined below.
Type of ADU Permit Required
ADUs in Winchester do not require special permits, and can be built using a traditional building permit. Residents are allowed to build one ADU per single-family home or duplex.
ADU Rules
An ADU can be maximum 900 square feet or half the Gross Floor Area of the main house; whichever is smaller.
In the case of duplexes, the ADU can be 900 square feet or half the Gross Floor Area of the larger unit; whichever is smaller.
ADUs may be attached, detached, or built within the main house.
Short-term rentals are not allowed - the minimum rental term for ADUs in Winchester is 31 days.
The main house and ADU must be owned by the same person(s).
Properties within ½ mile of a transit station do not require additional parking. Properties outside of that area require additional off-street parking (driveway or garage). e
Construction of a new garage for an ADU requires a special permit with the town.
ADUs should maintain the architectural style of the main house to the extent possible.
ADUs must have a separate entrance from the main house - attached ADUs can share an entry hall with the main house, but need a separate entry within the entry hall.
Exterior entrances for ADUs should be clearly secondary to the entry of the main house.
Exterior staircases above the first floor are only allowed within the home or on the side or back of the primary dwelling.
Resources:https://ecode360.com/42152935#42152939 (See Section 3.2.2)
Chelmsford, MA
Chelmsford, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: 2/10 (10 is most accepting)
Last updated: 9.10.2024
Source: Town of Chelmsford Facebook
What You Need To Know
Currently not in compliance with the Massachusetts Affordable Homes Act.
Currently, Chelmsford allows a form of an ADU that is referred to as a Limited Accessory Apartment (LAA). These can only be constructed within or attached to a single family dwelling.
Type of ADU Permit Required
To construct an ADU within an existing dwelling, a building permit through the building inspector is required. A special permit is required to build an ADU attached to the existing home.
ADU Rules
An LAA as defined in Chelmsford is a self-contained unit within an owner-occupied single-family dwelling, providing space for bathing, cooking, and sleeping, and used exclusively by extended family members. It does not convert the dwelling into a two-family unit.
The LAA must have separate ingress/egress that maintains the single-family appearance. New entrances should be at the side or rear, with enclosed staircases and internal doorways between the LAA and the main unit.
The LAA size is limited to 750 square feet, excluding stairs and common areas.
Adequate off-street parking required, consistent with neighborhood character. Utilities must be connected to town sewer, and separate metering is not required unless mandated by the State Building Code.
Only one LAA per lot and can have no more than two occupants.
LAAs must be used only by extended family. Use restrictions must be recorded in the Registry of Deeds and include provisions for owner-occupancy and notice to potential buyers.
The Building Inspector issues permits by right. Special permits are handled by the Zoning Board of Appeals, which also records restrictions in the Registry of Deeds.
Applicants must submit architectural plans, site plans, names of residents, and an executed use restriction.
Special permits are based on zoning bylaws. The Zoning Board of Appeals may allow deviations for accessibility features.
New owners must file applications and inspections will ensure compliance. Violations may result in permit lapses, fines, and required special permits for continued use.
Resources:
Millbury, MA
Millbury, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: 4/10 (10 is most accepting)
Last updated: 8.28.2024
What You Need To Know
Currently not in compliance with the Massachusetts Affordable Homes Act.
ADUs are allowed within all Residential and Suburban Districts on lots that meet the zoning district dimensional requirements or on lots/in structures that are legally pre-existing nonconforming.
Type of ADU Permit Required
ADUs require a special permit.
ADU Rules
Only one ADU is allowed on a lot.
The appearance of a single-family home must be kept in.
Any new entrance to the ADU must be either on the side or rear of the home.
The gross floor area of an ADU cannot be greater than 800 square feet.
Two off-street parking spaces must be provided for the residents of the ADU.
For ADUs built on lots with pre-existing nonconforming single-family homes, the living area of the existing single-family home cannot be increased in total square footage or footprint altered.
The Zoning Board of Appeals may allow in some circumstances deviations from certain requirements to accommodate individuals living needs.
Resources:
Fitchburg, MA
Fitchburg, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: 7/10 (10 is most accepting)
Last updated: 8.28.2024
Source: City of Fitchburg
What You Need To Know
Currently not in compliance with the Massachusetts Affordable Homes Act.
ADUs are allowed only within or attached with minimal impact to the existing single family home. ADUs are permitted in a limited number of zoning districts.
Type of ADU Permit Required
ADUs are allowed by right via a building permit in the Rural Residential (RR) and Residence A (RA), but in zoning district Residence B (RB) ADUs require a special permit.
ADU Rules
A plan from a registered land surveyor must be submitted to the building commissioner that includes the existing dwelling, the proposed location of the ADU, location of any septic system, and required parking.
The ADU must be occupied by the owner of the property except for a bona fide temporary absence.
This has to be certified by an affidavit.
Not more than one ADU is allowed per lot.
The ADU cannot be greater than 800 square feet of habitable floor space.
The ADU must be within the primary structure.
The external appearance of the existing dwelling cannot be significantly altered from the appearance of a single family home.
The ADU cannot result in an increase of more than 15% in the habitable and non-habitable floor area of the existing dwelling.
Any stairways must be within or screened in.
One additional parking space must be provided for the ADU
Special permits for ADUs are issued by the board of appeals only after the construction and occupancy of one is not detrimental to the neighborhood.
Resources:
Lancaster, MA
Lancaster, Massachusetts’ Accessory Dwelling Unit (ADU) Rules
Last updated: 2024
Lancaster, MA Accessory Dwelling Unit (ADU) Rules
As of 4/22/2024
City Acceptance Rating:
5/10(10 is most accepting)
What you need to know about ADUs in Lancaster, MA:
ADUs have been possible in Lancaster under a special permit since 2007. The town of Lancaster does not specify whether the ADU must be attached, detached, or retrofitted; however, they have specific requirements detailing the size, aesthetic, and desired purpose of the ADU.
ADU permit requirements in Lancaster, NA:
A special permit is required for construction of ADUs in Lancaster.
The ADU Rules in Lancaster, MA:
The primary residence must have been built five years prior to building an ADU.
Either the primary residence and ADU must be owner occupied. Temporary absences are allowed for no more than 12 months.
The habitable size of the ADU is limited to ⅓ of the habitable square footage of the existing dwelling and the proposed ADU or 1,200 square feet, whichever is less.
The ADU must have a separate entrance from the primary residence, there can be no more than one entrance door on a single side, and there cannot be any exterior staircases.
The ADU cannot be designed to house greater than three people
If not on town water and sewer, the owner must document that appropriate water and sewer modifications have been made to accommodate the needs of the ADU.
There must be at least three parking spaces available.
There must be a benefit to the community under the following conditions:
There is a benefit to a community housing need or special need of the planned occupant.
The compatibility of the design in relation to the existing structure and neighborhood.
The construction impact to natural resources, privacy of neighbors, overall character of the neighborhood, and safety.
Resources:
https://ecode360.com/11813694 (scroll to the bottom of the page. Section G)
Updates:
https://www.ci.lancaster.ma.us/sites/g/files/vyhlif4586/f/pages/la2689-220a_use_regulation_schedule.pdf - Indicates that special permit is still required
https://ecode360.com/LA2689/laws/LF1884287.pdf - indicates there may be a new (unclear) zone that would make ADUs by right or just retrofit. Unclear to me (sam) at this time.
Williamsburg, MA
Williamsburg does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
Williamsburg, MA Accessory Dwelling Unit (ADU) Rules
New Rules allowing Detached ADUs coming in September 2021!!!!
City Acceptance Rating:
N/A
What you need to know:
Williamsburg does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
Type of permit:
A special permit from the zoning board of appeals is required.
ADU rules in Williamsburg:
The ADU must have its own kitchen and bath and be within an existing single family dwelling.
One of the two units must be owner occupied.
The ADU’s floor space must be less than 750 square feet or one-third of the existing living space whichever is greater.
No more than three people can live in the ADU
Parking must comply with parking requirements outlined in the parking section of the Bylaw.
Other Notes:
Human habitation is not allowed in accessory structures, aka backyard homes.
Multi-family and two-family homes are allowed in all zoning districts. This means homeowners can convert their homes from single to two family dwelling INSTEAD of adding an ADU.
See the full text here: Zoning Ordinance Section 9.1 Accessory Apartments
Wilbraham, MA
Wilbraham does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
Wilbraham, MA Accessory Dwelling Units (ADU) Rules
City Acceptance Rating: N/A
What you need to know:
Wilbraham does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
See the full text here: Zoning Ordinance Section 4.1 Accessory Apartments
Whately, MA
Whately does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
Whately, MA Accessory Dwelling Units (ADU) Rules
City Acceptance Rating: 5/10
What you need to know:
Whately does not explicitly allow detached accessory dwelling units (ADUs).
HOWEVER, Backyard ADUs did receive approval to build one. We believe backyard tiny homes will be approved using the strategy we developed.
Call us for more info!
See the full text here: Zoning Ordinance Page 100, Section Accessory Apartments
Warwick, MA
Warwick, MA Accessory Dwelling Units (ADU) Rules
Updated: 11/17/2025 - Rules still being finalized
What you need to know:
Warwick, like all of Massachusetts since the passage of the 2024 Affordable Homes Act, allows ADUs by right. Each town has slightly different rules surrounding ADUs, but they all must adhere to the framework outlined by the state. The rules for Warwick are outlined below.
Type of Permit Required:
ADUs in Warwick do not require special permits, and can be built using a traditional building permit. Residents are allowed to build one ADU per lot.
ADU rules in Warwick:
An ADU can be up to 900 square feet in Warwick.
ADUs may be attached, detached, or built within the main house.
Short-term rentals are allowed in either the main house or the ADU, but not both simultaneously.
Properties with an ADU may require additional off-street parking (driveway or garage).
Resources:
https://warwickma.org/wp-content/uploads/2024/12/2024-12-09-STM-Minutes-Complete.pdf
Sunderland, MA
Sunderland does not have a section in its bylaw covering accessory dwelling units (ADUs). However, the town does allow two-family homes in all zoning districts except C-2. If your property has enough space you may be able to add backyard tiny home as a formal 2nd unit.
Sunderland, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: N/A
What you need to know:
Sunderland does not have a section in its bylaw covering accessory dwelling units (ADUs).
However, the town does allow two-family homes in all zoning districts except C-2. If your property has enough space you may be able to add backyard tiny home as a formal 2nd unit.
See the full text here: Zoning Ordinance
South Hadley, MA
South Hadley does not have a bylaw for detached accessory dwelling units (ADUs). However, they do provide a path to convert single-family homes into duplexes following the rules in the town’s zoning ordinance.
South Hadley, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: N/A
What you need to know:
South Hadley does not have a bylaw for detached accessory dwelling units (ADUs). However, they do provide a path to convert single-family homes into duplexes following the rules in the town’s zoning ordinance.
In order to convert a property, owners must get written permission from 3 of their neighbors and their property must meet meet minimum dimensional requirements.
The zoning bylaw does not specifically state whether a detached structure (backyard home) could act as the second unit.
If you are interested in building in South Hadley and would like more concrete information, contact our team. The rules in South Hadley will be specific to your property and situation and we will need to confer with the building department.
See the full text here: Zoning Ordinance
Southampton, MA
Southampton does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
Southampton, MA Accessory Dwelling Units (ADU) Rules
City Acceptance Rating: N/A
What you need to know:
Southampton does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
See the full text here: Zoning Ordinance Section XI-K Accessory Apartments
Shutesbury, MA
Shutesbury revised its rules for Accessory Dwelling Units in 2008 to make it easier for homeowners to add an additional dwelling unit to their properties. The city sees ADUs as a great to way help increase density and create high quality housing without sacrificing the character of the town. Since the bylaw was approved, there have been many ADUs added to homes including at least one backyard home (detached ADU)!
Shutesbury, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: 7/10 (10 is most accepting)
What you need to know:
Shutesbury revised its rules for Accessory Dwelling Units in 2008 to make it easier for homeowners to add an additional dwelling unit to their properties. The city sees ADUs as a great to way help increase density and create high quality housing without sacrificing the character of the town. Since the bylaw was approved, there have been many ADUs added to homes including at least one backyard home (detached ADU)!
Type of Permit Required:
Shutesbury allows both attached and detached ADUs by right with a site plan review by the Zoning Board of Appeals.
ADU rules in Shutebury:
The property must have slightly more than 1 acre (45,000 SF, 1.03 acres).
The primary home and proposed ADU must follow the district’s setback requirements.
One of the two dwelling units must be owner occupied.
An ADU can only be added to a single family property.
No additional curb cuts can be created. Access to the ADU must be provided from an existing driveway or access road to the property.
See the full text here: Zoning Ordinance, Section: 4.4-2 Accessory Apartments
Plainfield, MA
Plainfield loves ADUs and has a favorable permitting process. However, it is important to note that the town’s rules are very clear that the design and site plan must conform with the single family and rural characteristics of the town.
Plainfield, MA Accessory Dwelling Units (ADU) Rules
City Acceptance Rating: 9/10 (10 is most accepting)
What you need to know:
Plainfield loves ADUs and has a favorable permitting process. However, it is important to note that the town’s rules are very clear that the design and site plan must conform with the single family and rural characteristics of the town.
Plainfield also provides guidelines to convert a single family property to a multi-family property. If homeowners use this approach to add an additional apartment getting financing will be easier and they will maximize their home’s value. Multi-family conversions can only use existing space in the single family home (no additions or construction).
Type of Permit Required:
Plainfield allows both attached and detached accessory dwelling units (ADUs) to be built by right.
If a lot is nonconforming, an ADU requires a special permit.
ADU rules in Plainfield:
An ADU can be added to either a single or two-family dwelling.
It must be a fully separate living space including its own kitchen, bath, and egress.
Only one Accessory Apartment can be added to a residential lot.
The lot in question must conform to its zoning district’s rules (e.g size and street frontage).
The ADU and site plan must maintain the residential and rural character of the neighborhood. Exterior modification, including new detached structures must match the existing architectural elements of the home.
New entrances shall be located facing the side or front yard of the lot.
Adding an ADU to an original building or a backyard ADU is permissible as long as it is subordinate to the dwelling.
ADUs can not be larger than one third (33%) of the existing residential living space or nine hundred (900) square feet, whichever is less.
Off-street parking spaces must conform to the schedule in Section 5.3.
A sanitarian or professional engineer, registered in the Commonwealth of Massachusetts, must certify that the sewage disposal system can accommodate the additional apartment.
Read the full bylaw here: Zoning Ordinance, Section 8.2 Accessory Apartments and Multi-family Conversions
Pelham, MA
Detached ADUs are only allowed by Special Permit in its Village Center Districts. Conversion of existing space or additions are only allowed by right in its Village Center Districts.
Pelham, MA Accessory Dwelling Units (ADU) Rules
City Acceptance Rating: 5/10 (10 is most accepting)
What you need to know:
Pelham’s ADU rules differ per zoning district, so it is important to know which district your property is located in.
Type of permit required:
Detached ADUs are only allowed by Special Permit in its Village Center Districts.
Conversion of existing space or additions are only allowed by right in its Village Center Districts.
See the Village Center Zoning Districts
ADU rules in Pelham:
Act as a fully separate living unit with a kitchen, bathroom, and its own means of egress.
Only one accessory apartment is allowed per lot.
No more than three persons shall occupy the accessory apartment.
One of the two units must be owner occupied. When the owner(s) is not living on the property the ADU must remain vacant.
The ADU must be designed to match the character of the existing house and neighborhood. New entrances shall be located on the side or rear of the building.
The ADU shall be clearly subordinate to the primary dwelling.
The ADU cannot have more than two bedrooms and the maximum living area is 800 square feet or 1/3 of existing living space, whichever is less.
The lot must have at least three, permanent off-street parking spaces. These parking spaces shall be screened from road ways and adjacent or abutting properties with dense, hardy, evergreen plantings, earthen berms, walls or tight fence, complemented by evergreen plantings or other decorative elements.
The well and existing sewage disposal system must be reviewed by the board of health before a special construction permit is issued.
The Zoning Board of Appeals reserves the right to grant variance from these rules to encourage the development of housing units for disabled and handicapped individuals and persons with limited mobility.
See the full text here: Zoning Ordinance Section 5, 125-9.1 Accessory Apartments
Palmer, MA
Palmer allows both attached and detached accessory dwelling units (ADUs) to be built by special permit. However, it is important to note that the town’s rules are very clear that the design and site plan must conform with the single family and rural characteristics of the town.
Palmer, MA Accessory Dwelling Units (ADU) Rules
City Acceptance Rating:
5/10 (10 is most accepting)
What you need to know:
Palmer allows both attached and detached accessory dwelling units (ADUs) to be built by special permit. However, it is important to note that the town’s rules are very clear that the design and site plan must conform with the single family and rural characteristics of the town.
Type of Permit Required:
Both attached and detached ADUs require a special permit.
ADUs used as rentals to non family members are not permitted in the Rural Residential District.
ADU rules in Palmer:
Requirements for all accessory dwelling units
If a home is being used as an ADU and as space to conduct business, the ADU must be occupied by family. The bylaw refers to this as “Home Occupation.”
Only one entrance door can be added to the new unit that faces the street.
Parking:
In the Village Center District, the zoning board of appeals may waive parking requirements if there is adequate public parking near the proposed unit.
One additional space is required if an ADU is being included in the construction of a new home.
The ADU living area may be no more than thirty-three percent (33%) of the living area of the house or 800SF whichever is less.
Rules for Detached & Additions
The exterior finish material must be the same or visually match that of the existing home.
The roof pitch must match that the existing home.
Trim must match that the existing home.
Windows must match that the existing home in proportion and orientation.
Eaves must project from the building walls the same distance as the eaves on the existing home.
Read the full bylaw here: Zoning Ordinance, Section 171-89 Accessory Dwelling Units
Montague, MA
Montague has very favorable rules related to backyard homes (ADUs). There are limited restrictions and their zoning bylaw overall does not place excessive regulations on what can be built on a someone’s land. Setback requirements are also some of the most accommodating in Western Mass. However, homeowners still need to apply for a special permit to build a detached ADU so it will be important to plan a project that considers neighbors and the public if your ADU will be visible from the street.
Montague, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: 8/10 (10 is most accepting)
Evaluate your property:
What you need to know:
Montague has very favorable rules related to backyard homes (ADUs). There are limited restrictions and their zoning bylaw overall does not place excessive regulations on what can be built on a someone’s land. Setback requirements are also some of the most accommodating in Western Mass. However, homeowners still need to apply for a special permit to build a detached ADU so it will be important to plan a project that considers neighbors and the public if your ADU will be visible from the street.
Type of Permit Required:
Living Space Conversion:
Conversion of space within an existing home can be done with only a building permit.
Additions and Detached:
Both new additions, conversion of existing detached structures and newly constructed detached structures require a Special Permit.
ADU Rules in Montague:
Only one Accessory Apartment may be created on a single-family lot.
Utilities, water & sewer must be integrated with the single-family dwelling.
The owner must occupy either the ADU of primary home.
The ADU must maintain the single-family character of the home
The ADU’s design must match the character of the home
New entrances shall be located on the side or rear of the building.
New stairways to provide access or egress to the ADU shall be enclosed, screened, or located so they are not visible to the public.
A ADU cannot be larger that 900 SF
A minimum of two (2) off street parking space must be provided and the entire lot can not have more than 4.
Minimum lot size requirements are waved in districts AF-1, RS-2 and RB
The Building Inspector or the Zoning Board of Appeals may allow reasonable deviation from the stated conditions to accommodate features that facilitate access and mobility for disabled persons
See Dimensional Requirements (extracted12/14/2019)
See the full Zoning Ordinance here: Zoning Ordinance Section 8.5.2 Accessory Apartments
Monson, MA
Monson does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
Monson, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: N/A
What you need to know:
Monson does not allow detached accessory dwelling units (ADUs). Granny flats must be constructed within existing space or as an addition.
See the full text here: Zoning Ordinance SECTION XXVI Accessory Apartments
Leverett, MA
Leverett does not allow detached accessory dwelling units (ADUs). The town allows attached accessory dwelling units under extremely strict circumstances. The town also requires the special permit to be renewed every 2 years. We do not recommend building an ADU of any kind in Leverett.
Leverett, MA Accessory Dwelling Unit (ADU) Rules
City Acceptance Rating: N/A
What you need to know:
Leverett does not allow detached accessory dwelling units (ADUs). The town allows attached accessory dwelling units under extremely strict circumstances. The town also requires the special permit to be renewed every 2 years. We do not recommend building an ADU of any kind in Leverett.
See the full text here: Zoning Ordinance