Matanuska-Susitna Borough Land-Use and Building Rules for Remote Property Buyers

The Matanuska-Susitna Borough covers an area larger than several states and contains everything from suburban Wasilla to country that has never had a road. Borough wide rules apply alongside location specific districts and permits, and the incorporated cities inside the borough have their own roles, which is why buyers get contradictory answers depending on who they ask.

The useful framing is to separate what the borough regulates from what it does not, and then to ask the borough about your specific parcel rather than about the borough in general.

What the Borough Regulates, and What It Leaves Alone

The borough is an organized second class borough. It assesses and taxes property, exercises platting authority over the division of land, administers floodplain rules, and regulates a set of activities that touch public infrastructure.

What surprises people from other states is how many rural areas in the borough lack conventional use zoning districts, meaning there is no zoning district dictating permitted uses, setbacks or minimum lot sizes in the way a city ordinance would. Those areas remain subject to the applicable provisions of borough code.

The absence of use zoning is not the absence of regulation. Platting requirements still apply when land is divided. Floodplain rules still apply near water. Access onto a public road still requires the road authority's approval. Rules on specific uses can still apply. And the state layer, covering wastewater, water rights, fire and the rest, sits underneath all of it regardless of what the borough does.

Zoning, Special Districts and Unzoned Land

Where zoning does exist in the borough it tends to be concentrated around the developed core and in areas where residents have chosen to adopt it. The borough also uses special districts created for particular areas, which is a mechanism for local rules to apply in one place without imposing them borough wide.

The consequence for a buyer is that two parcels advertised similarly can carry completely different constraints. The parcel's location determines which of these layers applies, and the only reliable way to find out is to ask with the parcel number in front of you.

Ask specifically whether the parcel is zoned, whether it sits in any special or overlay district, and what that means for a residence, a cabin, a shop, an RV, or whatever you actually intend. Our post on living in an RV on your own land covers a question that comes up constantly on rural parcels and that varies enormously by jurisdiction.

Permits You May and May Not Need

The table is a routing guide rather than an answer. Each row is a phone call, and the borough will tell you which apply to your parcel, usually quickly.

Platting, Access and Driveway Approaches

Platting authority is one of the borough's clearest powers, and it matters to buyers in two ways. If you intend to split a parcel later, the borough governs that process and there are standards a division has to meet, including access. If you are buying a parcel created by an earlier division, the recorded plat is where the easements, rights of way and setbacks affecting it are written down. Our guide to reading plat map covers what those sheets contain.

Access deserves separate attention on rural Mat-Su parcels. Section line easements, historic trail routes and undeveloped platted rights of way all appear in this borough, and each is a different kind of thing. An undeveloped right of way on a plat is a legal corridor, not a road, and building it is your project and your cost. Our post on easements and land access rights covers how those are recorded and read.

Connecting a driveway to a public road requires the road authority's approval, and which authority depends on who owns the road. That is a question with a short answer and an expensive consequence if skipped.

Property Tax and Assessment

Because this is an organized borough, there is a property tax bill. That distinguishes Mat-Su parcels from land in the Unorganized Borough further north, where no borough tax applies, and it is a genuine difference in carrying cost over a long hold.

The assessor sets a value, and there is an appeal process if you think it is wrong. Exemptions exist for certain categories of owner and use, and they are worth asking about rather than assuming. Ask the assessor for the current bill on the parcel you are considering before you buy, since it is the recurring number in your ownership costs. Our overview of developing land in Alaska covers the other costs that follow, and current Alaska listings show which parcels sit in this borough.

Frequently Asked Questions

Is all land in the Mat-Su Borough zoned?

No. Many rural parts of the borough lack conventional use zoning districts, while zoning and special districts apply in other areas, and borough code provisions still apply throughout. Do not assume either way from the borough name. Ask borough planning about the specific parcel, because the answer determines what you may build.

Do I need a building permit for a remote cabin in the Mat-Su Borough?

Requirements differ across the borough. The borough's mandatory land use permit applies to specified development, including structures within 75 feet of a watercourse or waterbody outside Palmer, Wasilla and Houston where another Title 17 permit does not already apply. Contact borough planning with the parcel number rather than relying on a general rule, and remember that Alaska DEC regulates wastewater regardless of the borough's answer.

What is an undeveloped right of way on my plat?

It is a legal corridor for access that has been dedicated but never built. You may have the right to use it and to construct it, subject to approvals, but no road exists there today. Treat it as a project with a cost rather than as access you already have.

Does the borough maintain rural roads in winter?

Some roads are maintained and many are not, and maintenance responsibility varies between the borough, the state, road service areas and private arrangements. Ask specifically about the road serving your parcel, because winter maintenance determines whether the property is usable between November and April.

How does the Mat-Su Borough tax compare with land further north?

Mat-Su assesses and taxes property because it is an organized borough. Much of the interior sits in the Unorganized Borough with no borough property tax at all. On a long hold that difference in annual carrying cost is real, and it is worth weighing against the better access and services the borough offers.