Building near the water in Walpole, Massachusetts (wetlands rules)
Building, clearing or grading within 100 feet of a wetland, pond or stream (or the 100-year flood elevation, if that reaches farther), or within 200 feet of a year-round river or stream, needs a permit from the Walpole Conservation Commission under the town's Wetland Protection Bylaw. The Commission requires a 25-foot undisturbed vegetated buffer along the wetland edge unless it grants a variation.
| Local jurisdiction (most resource areas) | 100 feet from the resource area or from the 100-year storm elevation, whichever is greater [2] |
| Year-round rivers and streams | 200 feet from mean annual high-water line [2] |
| No Alteration Zone | 25-foot undisturbed vegetative buffer from the wetland boundary [4] |
| Permit term | 3 years (may be renewed for one additional year) [5] |
| Abutter notice | Owners within 300 feet [6] |
| Fines | Up to $300 per day per violation [7] |
These rules come from the Wetland Protection Bylaw as revised May 7, 2018 and the Commission's regulations as revised July 14, 2019; either may have changed since.
What areas are covered
Walpole's Wetland Protection Bylaw (General Bylaw Chapter 561) bars removing, filling, dredging, building on or altering protected resource areas without Conservation Commission permission [1]. Protected areas include banks, freshwater wetlands, marshes, bogs, swamps, streams, rivers, ponds, lakes, vernal pools and land subject to flooding, plus "bordering" land: 100 feet from those areas or from the 100-year storm elevation, whichever is greater, and 200 feet from any year-round river or stream [2]. "Alter" is broad: it includes building or repairing structures, regrading, filling, and cutting trees or other vegetation [3].
The 25-foot no-alteration zone
Under the Commission's 2019 regulations, applicants must keep a 25-foot contiguous, undisturbed vegetated buffer along the wetland boundary [4]. You can ask for a variation but must show why it's needed and how the bylaw's purposes will still be met.
How approval works
You file a written application with the Commission, or a request for determination if you're not sure the bylaw applies; work can't start until you have a permit or determination. The Commission holds a public hearing and may approve with conditions or deny. Permits expire after three years [5]. Abutters within 300 feet must be notified [6]. The bylaw's exceptions are narrow: the Wetlands Protection Act exemptions don't apply except as the bylaw states. Fines run up to $300 a day [7].
Floodplain and existing homes
The zoning bylaw also requires a Board of Appeals special permit for construction in the Flood Plain Protection Overlay District. The sources we reviewed don't set separate rules for expanding nonconforming houses near water; that is handled through the Commission's permit review.
Next steps
- Check the town GIS or ask the Conservation Agent whether your project is within 100 feet of a wetland or 200 feet of a perennial stream.
- If unsure, file a Request for Determination with the Conservation Commission (Town Hall Room 212, 508-660-7268).
- For work in jurisdiction, file a permit application (and Notice of Intent under the state Act) with plans stamped by an engineer showing resource boundaries, the 100-ft buffer and the 25-ft no-alteration zone, at least 16 days before a hearing.
- Notify abutters within 300 feet by certified mail and pay the bylaw filing fee and newspaper advertising cost.
Common questions
- Do I need a permit to build near wetlands in Walpole, Massachusetts?
- Yes. Building, clearing or grading within 100 feet of a wetland, pond or stream (or the 100-year flood elevation, if farther), or within 200 feet of a year-round river or stream, needs a Conservation Commission permit under the Wetland Protection Bylaw.
- What is the wetland buffer in Walpole, Massachusetts?
- The Conservation Commission requires a 25-foot undisturbed vegetated buffer along the wetland boundary unless it grants a variation, which you must justify. These rules are from the 2019 regulations and may have changed since.
- How does Conservation Commission approval work in Walpole, Massachusetts?
- You file an application, or a request for determination if unsure the bylaw applies; work can't start until you have a permit or determination. The Commission holds a public hearing, abutters within 300 feet must be notified, and permits expire after three years.
- What are the fines for wetland violations in Walpole, Massachusetts?
- Fines under Walpole's Wetland Protection Bylaw run up to $300 per day per violation.
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.
What the bylaw says
- §561-2, Jurisdiction, General Bylaw Chapter 561 - Wetland Protection (certified Article, as revised 5/07/2018), p. 1
Except as permitted by the Commission or as provided in this Bylaw, no person shall remove, fill, dredge, build upon or alter protected resource areas as defined in Section 9.
- §561-9, Definitions (Protected Resource Area), General Bylaw Chapter 561 - Wetland Protection (certified Article, as revised 5/07/2018), p. 6
Bordering in this context shall mean either (a) 100 feet horizontally lateral from any of the foregoing areas; or (b) 100 feet horizontally lateral from the water elevation of the 100 year storm, whichever is the greater of (a) or (b); and (c) land within 200 feet of the mean annual high-water line of any year round river or stream.
- §561-9, Definitions (Alter), General Bylaw Chapter 561 - Wetland Protection (certified Article, as revised 5/07/2018), p. 5
(f) Driving of piles, erection or repair of buildings, or structures of any kind; (g) Placing of obstructions or objects in water; (h) Destruction of plant life including cutting trees;
- Reg. 1.4.1, No Alteration Zone, Walpole Wetlands Protection Bylaw Regulations (approved 7/14/2004, rev. 8/13/2008, 7/14/2019), p. 2
The Commission shall require the Applicant to maintain a twenty-five (25) foot wide contiguous, undisturbed vegetative buffer measured from, and parallel to, the wetland resource boundary.
- §561-7, Permits, Determinations, and Conditions, General Bylaw Chapter 561 - Wetland Protection (certified Article, as revised 5/07/2018), p. 4
Permits and determinations shall expire three years from the date of issuance.
- Reg. 2.8, Abutters Notification, Walpole Wetlands Protection Bylaw Regulations (approved 7/14/2004, rev. 8/13/2008, 7/14/2019), p. 6
Abutters within 300 feet of the property line of which the activity is proposed shall be notified when filing a Notice of Intent, Abbreviate Notice of Resource Area Delineation or Abbreviated Notice of Intent as specified in the Bylaw.
- §561-11, Enforcement, General Bylaw Chapter 561 - Wetland Protection (certified Article, as revised 5/07/2018), p. 7
Any person who violates any provision of this Bylaw, regulations thereunder, or permits issued thereunder, shall be punished by a fine of not more than $300 each day or portion thereof during which a violation continues.