ADU Lookup

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Saugus

Saugus

By Right

Town of Saugus · Essex County · Last verified 2026-02-25

Key Requirements

Permit Type

By Right

Permit Authority

Building Inspector

Local Terminology

ADU

Max Size (sq ft)

900

Max Size (% of principal)

50%

Size Rule

Whichever is smaller

Attached Allowed

Yes

Detached Allowed

Yes

Internal Allowed

Yes

Parking Spaces Required

1

Transit Exemption

Yes

Short-Term Rental

Not addressed

Owner Occupancy Required

No

Design Review Required

Historic District Review

Energy Code

Stretch Code

HERS Rating Required

Yes

Max HERS Index (ADU)

52

Quick Summary

  • Saugus has a draft ADU bylaw (Section 12.4) that predates the state Affordable Homes Act and has not been updated to reflect state preemption.
  • Under state law (effective February 2, 2025), ADUs are allowed by right in all single-family residential districts -- no special permit is needed, regardless of the draft bylaw's language.
  • The draft bylaw's owner-occupancy requirements, family-member-only restrictions, 10,000 sq ft minimum lot size, and 2-parking-space mandate are all preempted by state law.
  • The draft includes two ADU categories: "Family ADUs" and "Deed-Restricted (Affordable) ADUs" -- the family category's restrictions are largely unenforceable under state law.
  • Until Saugus adopts a final bylaw compliant with state law, the state default rules under 760 CMR 71.00 govern Protected Use ADUs.

Requirements at a Glance

RequirementRule
Permit typeBy right (state law; draft bylaw's special permit requirement is preempted)
Max size900 sq ft or 50% of principal dwelling, whichever is smaller (state law)
BedroomsDraft bylaw limits to 2 bedrooms (may be challenged)
Attached / Detached / InternalAll types allowed under state law
ParkingMax 1 space; 0 within 0.5 miles of transit (state law overrides draft's 2-space requirement)
Owner occupancyNot required (state law preempts draft bylaw)
Short-term rentalNot specifically addressed in draft
Separate saleProhibited -- ADU cannot be sold as condo or separate from principal dwelling
Permit authorityBuilding Inspector