A Sammamish private road looks like any other street from the driver's seat. The difference shows up later: in the first snowstorm, when the plow turns around at the corner, or when a pothole appears and no one at City Hall is responsible for it. On the Plateau, shared driveways and private lanes are common on larger lots, in older short plats and at the ends of cul-de-sacs, and buyers often do not know which kind of road they are on until they ask.

This guide covers what to check before you buy: who maintains the road, what the seller's disclosure and title report tell you, what Washington courts have said about sharing costs when there is no written agreement, and what the 2025 Inglewood street dispute showed about how much a road's status can matter. Every rule below was checked at its source in September 2026. We are real estate agents, not attorneys, so this describes the process and the questions to ask, not legal advice.

What Makes a Sammamish Private Road Different

A public street is owned by the City, or held in a public right-of-way, and the City maintains it. A private road is owned by the lots it serves, or by one lot with easements granting the others the right to use it. The people who use it are responsible for keeping it passable.

The City of Sammamish has been clear about where its responsibility stops. Its October 2024 Snow and Ice Management Plan says private roadways, alleys, access roads and driveways are not serviced by the City in any snow event. In a May 2025 letter to Inglewood residents, the Public Works Director wrote that state law prohibits the use of public funds for maintaining private roads, and listed the services that stop when a road is private: vegetation management, street sweeping, plowing, pothole repair, ditch maintenance and parking enforcement.

That list is a useful checklist. On a Sammamish private road, each of those jobs belongs to the owners, and on a hill in January, plowing and ditch maintenance are not small line items.

The 2025 Inglewood Case: When a Road's Status Changed

The clearest local lesson in why this matters came from Inglewood, the 1889 plat on the west slope above East Lake Sammamish Parkway. On May 20, 2025, the City wrote to the neighborhood that its streets had never been formally opened to the public when the plat was recorded, so under Washington statutes dating to 1889 they were privately owned. The City said it would stop maintaining them on June 30, 2025, even though it had maintained them since taking over from King County in 1999. The map that came with the letter showed about 3.7 miles of streets newly identified as private, across a plat of 618 parcels, and another 1.4 miles that had always been private.

Residents pushed back and went looking for records. Historical county resolutions and deeds turned up, and on September 16, 2025, the City Council adopted Resolution R2025-1116, declaring the historically maintained Inglewood streets public and confirming they would be treated the same as other public streets in Sammamish. The streets that had always been private stayed private.

For buyers, the point is not that this will happen again on a particular street. It is that a road's legal status depends on recorded history, not on whether a plow has been showing up. Owners in Inglewood had no reason to question their streets for decades. The paperwork is what settled it.

Step 1: Confirm Whether the Road Is Public or Private

• Ask City of Sammamish Public Works directly. Give them the address and ask whether the City maintains the road in front of the house and the full route to it. Why it matters: a home can sit on a public street and still be reached by a private lane, or the reverse.
• Look at the plat. The recorded plat or short plat shows whether streets were dedicated to the public or held as private tracts. Why it matters: Inglewood turned on exactly this question.
• Walk the road. Note the surface, the drainage ditches, the grade, and where the pavement quality changes. Why it matters: a visible change in paving or a missing street sign often marks where public maintenance ends.

Private lanes show up most often on larger lots. If you are shopping acreage, our Sammamish horse properties and acreage guide covers what else comes with that kind of property.

Step 2: Read the Seller's Disclosure on the Sammamish Private Road

Washington's seller disclosure statement, Form 17, is set out in RCW 64.06.020. Its title section asks the seller three questions that go straight to this topic:

1. Item 1.D: Is there a private road or easement agreement for access to the property?
2. Item 1.E: Are there any rights-of-way, easements, or access limitations that may affect the buyer's use of the property?
3. Item 1.F: Are there any written agreements for joint maintenance of an easement or right-of-way?

These are starred items on the form, which means that when the answer is yes, the seller is asked to attach a copy of the document if they have it. Why it matters: a "yes" on 1.D with no agreement attached, or a "don't know," is a signal to go find the recorded documents yourself. The same three questions carry over unchanged into the version of the form that takes effect January 1, 2027.

Step 3: Get the Easements and Road Agreement From the Title Company

The preliminary title commitment lists the recorded documents that affect the property, including easements for access and any recorded road maintenance agreement. Ask the title company for copies of every one of them, not just the list. Then read for these points:

• Access rights. Does a recorded easement give this lot the right to use every segment of the road between the house and a public street? Why it matters: a gap in the chain of easements is an access problem, and it is far easier to solve before closing.
• Maintenance terms. Does the agreement say how costs are split (equally, by frontage, by distance traveled) and who decides when work happens? Why it matters: this is the document that governs the next repaving bill.
• Snow and emergencies. Does it cover plowing, or only paving? Why it matters: in Sammamish, private-road plowing is on the owners every storm.
• Utilities. Do the same easements carry water, sewer or power lines? On lots outside the sewer district, the road easement may also be where a septic line or well line runs. Our guide to buying a Sammamish home with a septic system or well covers those checks.

Step 4: Know the Rule When a Sammamish Private Road Has No Written Agreement

Many older shared driveways have an access easement but no written maintenance agreement. Washington has no statute that sets how private-road costs are split. What it has is case law. In Buck Mountain Owners' Association v. Prestwich, a published 2013 decision, Division I of the Washington Court of Appeals opened with this sentence: "Absent an agreement, joint users of a common roadway are obligated to contribute to the costs reasonably incurred for repair and maintenance of the roadway."

The court grounded that in a 1948 Washington Supreme Court case, Bushy v. Weldon, and in the Restatement (Third) of Property. It also sent part of the case back because the share a user pays has to be reasonable: the owners in that case used 0.7 miles of a 10-mile road system and had been assessed 62.5 percent of the full dues.

Two practical takeaways for buyers. First, no agreement does not mean no obligation; you can expect to share costs, and so can your neighbors. Second, without an agreement, the amount is left to negotiation or, at worst, to a court. That is why many owners on a shared road choose to record a maintenance agreement, and why an attorney is the right person to draft or review one.

Step 5: Look at the Road the Way a Future Buyer Will

• Grade and drainage. Steep private lanes and their ditches can be affected by the same slope and stream rules that govern the lots around them. Our guide to trees, slopes and what you can build on a Sammamish lot explains where those rules come from.
• Building plans. If you plan to remodel or rebuild, construction traffic uses the shared road, and the neighbors will notice. See teardowns and custom rebuilds in Sammamish for the rest of that process.
• HOA versus road agreement. Some private roads are owned and maintained by a homeowners association as a common tract, with dues covering the work. Others sit outside any HOA. Our guide to buying a home in Sammamish with an HOA covers how to read those documents.
• Resale. When you sell, you will answer the same Form 17 questions. A recorded agreement and a record of who paid for what make that an easy set of answers.

This article describes public records, city policy and published case law, and is not legal advice. Easement and road maintenance questions turn on the specific recorded documents for each property. For a specific home, consult a real estate attorney and the title company.

Frequently Asked Questions About Buying on a Sammamish Private Road