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Building near the water in Dover, Massachusetts (wetlands rules)

Dover, Norfolk County · Bylaws checked 2026-10-03 · Reviewed · 10 cited sections

Allowed with board review

Work within 100 feet of a wetland, pond, lake or intermittent stream, or within 200 feet of a river or perennial stream, needs a Conservation Commission permit under the Dover Wetlands Protection Bylaw. Inside that buffer, new structures generally must stay 70 feet from the resource area and any disturbance 50 feet away, with a 100-foot no-disturb zone around vernal pools.

Jurisdiction (wetlands, ponds, banks, floodplain)Within 100 feet [1]
Jurisdiction (rivers and perennial streams)Within 200 feet [2]
Structure setback from resource area70 feet [4]
Disturbance setback50 feet [4]
Vernal pool no-disturb zone100 feet [7]
Max tree-cover removal in buffer50% per 100-foot section [6]

Which areas are covered

Massachusetts has no "shoreland zone." In Dover, the local Wetlands Protection Bylaw (Chapter 181) requires a Conservation Commission permit to remove, fill, dredge, alter or build within 100 feet of any wetland, bank, pond, lake, intermittent stream, vernal pool or the 100-year flood line [1]. The same applies within 200 feet of any river or perennial stream [2]. If you're not sure whether your lot or project is covered, you can ask the Commission for a written Determination of Applicability, which it must issue within 21 days [9].

Setbacks inside the buffer zone

The Commission's regulations (Chapter 263) require projects in the buffer zone to keep both structure setbacks and disturbance setbacks from the resource area [3]. Table 3 sets them at 70 feet for structures, 50 feet for disturbance, and 100 feet for vernal pools [4]. A "structure" includes buildings, foundations, driveways, walls and fences [5]. Disturbance includes grading, cutting vegetation and applying fertilizer or pesticides. The Commission may modify or waive the setbacks if you show there's no reasonable alternative. It may also allow split-rail fences or loose fieldstone walls closer in. Roadways and driveways in subdivisions and large-lot developments must meet setbacks twice those in Table 3.

Vegetation and wetlands

  • You can't remove more than 50% of the tree cover in any 100-foot section of buffer zone, except in cases of hardship [6].
  • No activity of any kind is allowed within 100 feet of a vernal pool [7].
  • In general, bordering vegetated wetland can't be altered [8]. Exceptions for hardship require an alternatives analysis and replication of the lost wetland.

Expanding existing homes

The sources we reviewed have no separate rule for expanding a nonconforming house. An addition, deck, shed or pool in the buffer zone is reviewed under the same setbacks. Zoning nonconformity rules (Chapter 185) weren't available to us.

Approval

You file an application with the Commission, which holds a public hearing. An approved permit isn't valid until it's recorded at the Registry of Deeds [10].

See how Dover compares with 8+ other Massachusetts towns on building near the water (wetlands rules) →

Next steps

  1. Contact the Dover Conservation Commission early to find out whether your project is within 100 feet of a wetland or 200 feet of a perennial stream.
  2. If you're unsure, file a Request for Determination of Applicability; if the work is covered, file a permit application (Notice of Intent form) with plans and the fee.
  3. Have a wetland scientist flag the resource-area boundary so your plan can show the 50-foot and 70-foot setback lines.
  4. After approval, record the permit at the Norfolk Registry of Deeds before starting work.

Common questions

Do I need a permit to build near a wetland or pond in Dover, Massachusetts?
Yes. Work within 100 feet of a wetland, pond, lake or intermittent stream, or within 200 feet of a river or perennial stream, needs a Conservation Commission permit under the Wetlands Protection Bylaw.
How far must a new structure be from a wetland in Dover, Massachusetts?
Inside the buffer, structures generally must stay 70 feet from the resource area and any disturbance 50 feet away. The Commission may modify or waive these if there's no reasonable alternative.
Can I do work near a vernal pool in Dover, Massachusetts?
No activity of any kind is allowed within 100 feet of a vernal pool.
Can I clear trees in the wetland buffer in Dover, Massachusetts?
You can't remove more than 50% of the tree cover in any 100-foot section of buffer zone, except in cases of hardship.

Massachusetts wetlands rules and the Conservation Commission

Massachusetts has no "shoreland zoning" like some states. Instead, the Wetlands Protection Act (M.G.L. c. 131, §40) and MassDEP's regulations (310 CMR 10.00) control work near water, and your local Conservation Commission enforces them.

What's protected:

  • Wetlands, banks, beaches, dunes, marshes, land under ponds and streams, and 100-year floodplains.
  • The riverfront area: 200 feet from a perennial river or stream, shrinking to 25 feet in certain dense urban areas.
  • The buffer zone: land within 100 feet of a wetland, bank, beach or similar resource area. Most work here needs Conservation Commission review.

How approval works:

  • Contact the Conservation Commission before starting any work in these areas. That includes additions, decks, sheds, driveways, regrading and clearing vegetation.
  • If you're unsure whether the law applies, file a Request for Determination of Applicability (RDA).
  • If the work will affect a resource area, file a Notice of Intent (NOI) with plans and a fee. A public hearing follows, and the commission issues an Order of Conditions approving (with conditions) or denying the project.
  • Applicants, abutters, groups of 10 residents or MassDEP can appeal to MassDEP.

Local bylaws can be stricter. Many towns have their own wetlands bylaw with larger buffers or no-build zones, and the Conservation Commission enforces those too.

State sources: M.G.L. c. 131, §40 (Wetlands Protection Act) · 310 CMR 10.00, Wetlands Protection Act Regulations · MassDEP, Protecting Wetlands in Massachusetts

What the bylaw says

Exact text from Dover's published bylaws. Section numbers are as printed in the source.

  1. Ch. 181, Jurisdiction, Town Code Chapter 181 - Dover Wetlands Protection (eCode360), p. 1
    No person shall remove, fill, dredge, alter or build upon or within 100 feet of any freshwater wetland, marsh, wet meadow, bog, swamp, vernal pool, bank, beach, bordering vegetated wetland, dune, lake, river, pond, intermittent stream, isolated vegetated wetland, estuary, upon or within any land under said water, upon any land subject to flooding or inundation by groundwater, surface water or storm flowage or within 100 feet of the one-hundred-year storm line without first applying for, receiving and complying with a Permit issued by the Conservation Commission.
  2. Ch. 181, Jurisdiction, Town Code Chapter 181 - Dover Wetlands Protection (eCode360), p. 1
    No person shall remove, fill, dredge, alter or build upon or within 200 feet of any river or perennial stream, without first applying for, receiving and complying with a Permit issued by the Conservation Commission.
  3. § 263-5(K)(2) Setbacks, Town Code Chapter 263 - Rules and Regulations for the Dover Wetlands Protection Bylaw (corrections 4/24/24), p. 22
    Therefore, any project proposing work in the Buffer Zone must maintain certain setbacks from the resource areas. These setbacks, summarized in Table 3, include both structure setbacks and disturbance setbacks.
  4. Table 3, Minimum Setbacks from Wetland Resources Areas, Town Code Chapter 263 - Rules and Regulations for the Dover Wetlands Protection Bylaw (corrections 4/24/24), p. 23
    Structure Disturbance Vernal Pool Setback Setback Setback (feet) (feet) (feet) 70 50 100
  5. § 263-5(K)(2)(a), Town Code Chapter 263 - Rules and Regulations for the Dover Wetlands Protection Bylaw (corrections 4/24/24), p. 22
    “Structure” is defined as: Any building, foundation, road, driveway, wall, fence or other man-made article placed either permanently or semi- permanently in or on the ground.
  6. § 263-5(K)(1) Tree Filter Zone, Town Code Chapter 263 - Rules and Regulations for the Dover Wetlands Protection Bylaw (corrections 4/24/24), p. 22
    In no case shall more than 50% of the tree cover be removed for any one-hundred foot section of Buffer Zone, except in cases of hardship where the applicant can demonstrate that no reasonable alternative exists.
  7. § 263-5(J) Vernal Pools, Town Code Chapter 263 - Rules and Regulations for the Dover Wetlands Protection Bylaw (corrections 4/24/24), p. 21
    No activity shall be permitted within 100 feet of the delineated edge of a Vernal Pool.
  8. § 263-5(B) Bordering Vegetated Wetland, Town Code Chapter 263 - Rules and Regulations for the Dover Wetlands Protection Bylaw (corrections 4/24/24), p. 17
    In general, no alteration of Bordering Vegetated Wetland is permitted.
  9. Ch. 181, Requests for Determination, Town Code Chapter 181 - Dover Wetlands Protection (eCode360), p. 1
    Upon written Request of any person, the Commission shall, within 21 days, make a written Determination (Determination of Applicability) as to whether this chapter is applicable to any specific parcel or parcels of land or to any specific work to be performed thereon.
  10. § 263-3(C)(5), Town Code Chapter 263 - Rules and Regulations for the Dover Wetlands Protection Bylaw (corrections 4/24/24), p. 9
    A Permit approving work shall not be valid until it has been recorded in the chain of title for the property at the Registry of Deeds.
This page summarizes Dover's posted bylaws as of 2026-10-03. Bylaws are amended, and individual lots can have overlays, subdivision covenants, or HOA rules that are stricter. Confirm with Building Department (Inspector of Buildings / Zoning Enforcement Officer), Dover Town House, 5 Springdale Avenue (508-785-0032 ext. 225) before you build. Spot an error?