Zoning, building permits and septic rules in Town of Hudson, Massachusetts

Town of Hudson’s own rules

• Building permitRequired

  Construction, alteration, repair, removal, demolition, change of use or occupancy, and regulated equipment work inside Hudson town limits.

  • Paving projects do not require a building permit, but work in the public right-of-way requires a Department of Public Works permit.

  “paving projects do not require a building permit but will require a permit from the department of public works is work is being done within the public right-of-way.”

• InspectionsRequired

  Open building permits inside Hudson town limits.

  • The cited page says open permits must pass a final inspection to be closed.

  “lastly, whether historic or post digital implementation, any open permits must pass a final inspection to be closed.”

• Certificate of occupancyLimited

  Buildings inside Hudson town limits where a certificate of occupancy is required.

  • The zoning bylaw states the requirement only “where required.”

  “No building shall be occupied until a certificate of occupancy has been issued by the Building Commissioner where required.”

• Local zoningPresent (with conditions)

  Land inside Hudson town limits.

  • The bylaw is adopted under Massachusetts General Laws Chapter 40A.

  “to promote the health, safety and general welfare of the inhabitants of the Town of Hudson”

• Manufactured homesLimited

  Mobile homes in a mobile-home park in Hudson’s MH District.

  • The provision is for mobile-home parks in the MH District and includes specified lot, frontage, setback, and minimum floor-area conditions.

  minimum mobile-home lot area: >= 5000 square feet · minimum mobile-home floor area: >= 350 square feet

  “Mobile Home Parks, provided that a) Mobile homes shall each be located on a lot with a minimum area of five thousand (5,000) square feet.”

• Accessory dwellingsAllowed (with conditions)

  Accessory dwelling units in a single-family home or lot inside Hudson town limits.

  • A building-permit application must be filed with the Building Commissioner.
  • More than one ADU in a single-family home or house lot requires a special permit.
  • The unit may not exceed 900 square feet or two bedrooms.
  • It must comply with the State Building Code, Title V, and local bylaws and regulations.
  • At least one additional parking space is required; vehicle stacking and a separate driveway opening are not allowed.
  • ADU short-term rentals are prohibited.

  maximum habitable floor area: <= 900 square feet · maximum bedrooms: <= 2

  “(g) the habitable floor area of the accessory unit shall not exceed 900 square feet.”

• Septic permitRequired

  A Hudson building project for which a sewage disposal works permit is applicable.

  • The sewage disposal works permit must be obtained from the Board of Health before the building permit is issued.

  “No permit shall be issued until a sewage disposal works permit, when applicable, has first been obtained from the Board of Health.”

• Driveway accessLimited

  New separate driveway openings for accessory dwelling units inside Hudson town limits.

  • This claim is limited to ADUs; the cited provision requires the additional parking space to have vehicular access to the existing driveway.

  “a separate driveway opening for the accessory dwelling unit shall not be allowed.”

• Short-term rentalsProhibited

  Accessory dwelling units inside Hudson town limits.

  • This prohibition applies to ADUs and does not establish a townwide rule for all other dwelling types.

  “The use of the accessory dwelling unit for short-term rentals, as defined in MGL Chapter 64G Section 1, shall be prohibited.”

• Permit processPublished (with conditions)

  Building permit applications inside Hudson town limits.

  • Plans are required as deemed necessary by the Building Official; site plans are required for all new construction and existing structures on the site.
  • New homes, additions, bedroom work, and commercial projects need plans and one site-plan copy; new homes and additions require a HERS Rater.

  “you will need plans (and one copy of the site plan) for the following types of projects: new homes, any addition, any work that involves bedrooms and all commercial projects. for new homes and additions, you will be required to submit a hers rater, which is your responsibility.”

Rules another office applies inside Town of Hudson

Town of Hudson does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

• Building code adoptedAdopted (with conditions)

  Construction and regulated equipment work inside Hudson town limits.

  • The official page identifies the applicable code as the 780 CMR Massachusetts State Building Code.

  “or to install or alter any equipment for which provisions are made or is regulated by the 780 CMR Massachusetts State Building Code must first obtain a building permit from the Building Department.”

• Minimum dwelling sizeSpecified

  Mobile homes in a Hudson MH District mobile-home park.

  • This is a mobile-home-park standard and not a general minimum for all single-family dwellings.

  minimum floor area: >= 350 square feet

  “No mobile home shall have a floor area of less than three hundred fifty (350) square feet.”

• Lot coverageSpecified

  Multiple dwellings under §5.4.4 in the MR District inside Hudson town limits.

  • The standard is for multiple dwellings allowed by special permit in the MR District.

  maximum lot coverage by buildings and structures: <= 20 percent · minimum landscaped area: >= 25 percent

  “the maximum coverage of the lot by all buildings and structures shall be twenty (20%) percent of the total lot area and the minimum landscaped area shall not be less than twenty-five (25%) percent of the lot area.”

• Building heightSpecified

  Multiple dwellings under §5.4.4 in the MR District inside Hudson town limits.

  • The standard is for multiple dwellings allowed by special permit in the MR District.

  maximum building height: <= 40 feet

  “3) the maximum height of building shall be forty (40) feet.”

• Building in a floodplainRequired

  Development in Hudson’s Floodplain/Wetlands District, including FEMA Zone A and AE areas identified by the bylaw.

  • Underlying-district uses outside the listed permitted uses require Board of Appeals approval after notice and public hearing.
  • The Board must find that the use does not significantly conflict with district purposes, is designed and placed to offer minimum obstruction to water flow, is firmly anchored where appropriate, and is not in the floodway.

  “6.1.4 uses permitted by the board of appeals after notice and public hearing 6.1.4.1 any use permitted in the underlying district in which the land is situated, including erection or construction of buildings, enlargement or movement of structures, and dumping, filling or earth transfer or relocation”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Hudson or Middlesex County directly.

• Living in an RV — RV occupancy on private land inside Hudson town limits.
• Camping on your land — Temporary camping on private land inside Hudson town limits.
• Tiny homes — Tiny-home occupancy inside Hudson town limits.
• Septic inspection — Onsite wastewater disposal systems inside Hudson town limits.
• Off-grid sanitation — Off-grid sanitation arrangements inside Hudson town limits.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Off-grid gear

Going off-grid in Town of Hudson means bringing your own water and power. The kit we’d start with:

• Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
• Power Bluetti Solar generators and home battery backup for living off the grid.
• Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
• Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.

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