How do you sell an inherited 'private-road share (position-designated road)'?

In short: an inherited share in a private road is, in principle, sold together with the front residential land (as one with it), because splitting off the share narrows the buyer's use and tends to lower the price. In selling, note whether you can obtain from the road's co-owners the passage/excavation consent the buyer wants; that the explanation changes by whether it is a position-designated road (Building Standards Act Art. 42(1)(v)) or a 2nd-para road (Art. 42(2)); and that the inheritance-tax valuation of a private road (Valuation Basic Circular 24) splits by whether the public at large passes it or only specified people. We begin from checking registration and the current state.

"When I inherited the family home, the road in front was a private road shared with the neighbours, and I inherited a share in it too" is not a rare enquiry. A private-road share looks like an extra to the residential land, but on a sale it becomes an unexpected issue over passage/excavation consent and valuation. This article is for heirs who, with the residential land, have inherited a share in the front private road: what you can confirm from the real-estate side, set out from the Civil Code, the Building Standards Act and the Valuation Basic Circular, plus national materials. We handle the site survey, buyer search, brokerage and explanation; inheritance registration goes to a judicial scrivener, valuation and transfer/inheritance tax to a tax accountant, disputes over passage/excavation with co-owners to an attorney, and subdivision/boundary confirmation to a land and house investigator — each split as an independent business entity.

Is an inherited private-road share sold with the residential land, or separately?

In principle, sold as one with the front residential land. Selling the private-road share alone is best avoided in practice.

The front private-road share is the "footing for passage" to enter and leave via that residential land. If you sell the land but keep the private-road share, the buyer may end up using land abutting someone else's private road without passage/excavation consent. Conversely, selling the private-road share alone to a third party usually has almost no use and attracts little price. That is why the residential land and the private-road share are moved as a set.

Before selling, first confirm the form of the private-road rights in the registration. A private road comes in (1) a co-ownership form where everyone holds one parcel in shares, and (2) a subdivided/mutual-use form where the road is finely subdivided and each person solely owns the part in front of them and they pass over each other's parts. Which it is changes who you get consent from and how you explain it.

What to confirm	Materials to look at
Whether the road is co-ownership or subdivided; the share ratio	Registration certificate, official map, land-area survey map
Whether the road is a road under the Building Standards Act (position-designated / 2nd-para)	Confirm the road category with the specified administrative agency
Whether water/sewer/gas mains run in the private road	Buried-facility status from each utility/authority
Whether inheritance title is entered	Registration certificate (whether inheritance registration is needed)

As a premise for selling, complete inheritance registration first (Real Property Registration Act Art. 76-2). The treatment of selling the residential land itself in co-ownership — all together or just your own share — is at selling inherited co-owned real estate.

How does the sale change between a position-designated road and a 2nd-para road?

Both are "roads" under the Building Standards Act, but their origins differ, and the points to explain to the buyer differ too.

Building Standards Act Art. 42(1)(v) includes as a road a private road that has received a position designation from the specified administrative agency (a "position-designated road"). Art. 42(2), by contrast, deems as a road a road under 4 m wide that already had buildings lined along it when the Act came into force (23 November 1950) and that the specified administrative agency has designated (a so-called 2nd-para road / deemed road). In a 2nd-para road, the line 2 m horizontally from the road centreline is deemed the road boundary, and on rebuilding the site must be set back to that line, with no building or wall in the set-back part.

Type	Basis	What bites on a sale
Position-designated road	Building Standards Act Art. 42(1)(v)	Confirm width/area on the designation drawing; changing/abolishing the private road may be restricted
2nd-para road (deemed road)	Building Standards Act Art. 42(2)	Set-back needed when the buyer rebuilds; the set-back part cannot count toward building area

Either way, it goes directly to whether the buyer "can rebuild on that residential land." Whether the abutting requirement is met is at what to confirm before selling an inherited unbuildable property; for inherited land in an urbanization-control area, see can inherited land in an urbanization-control area be sold. Because the road category cannot be told from the registration, confirm it at the specified administrative agency's desk.

Whom do you get the "passage/excavation consent" the buyer wants from?

From the road's other co-owners (or the adjacent private-road owners). This is the most time-consuming part in practice and concerns both seller and buyer.

The buyer wants to confirm (1) that cars and people can pass the road (passage) and (2) that the road can be dug up for water/sewer/gas works (excavation). If the private road is co-owned, the rules on use, management and change of co-owned property (Civil Code; revised by Act No. 24 of 2021, in force 1 April 2023) apply. The revised Code arranged that "minor changes" not entailing a marked change of shape/function, and matters of management, can be decided by a majority of the co-owners' share value (Art. 251(1), Art. 252(1)), and set up a court-involvement mechanism where a co-owner's whereabouts are unknown. That said, how to position the consent for works that physically damage the road, such as excavation, is highly case-specific, and in practice it is customary to exchange passage/excavation consent documents individually with the relevant private-road owners.

Whether "passage/excavation consent can reliably be obtained from the existing co-owners" cannot be asserted uniformly in this article (unverified). It depends on the number, relationship and management of the co-owners, so confirm individually before proceeding with a sale. Where consent is hard to obtain, or you are in dispute with a co-owner, we connect you to an attorney. We assist with the outlook for securing consent and the sequencing of explanation to the buyer and the bank.

How do you confirm the inheritance-tax valuation of a private road (Circular 24) with a tax accountant?

A private road's valuation changes greatly by whether it "serves the passage of the public at large." This is the tax accountant's field, but here is the gist of what to check.

Valuation Basic Circular 24 provides that, for land serving as a private road, the value is in principle 30% of what it would be were it not a private road, and where the private road serves the passage of the public at large, the value is not assessed (zero). The National Tax Agency's Q&A examples cite, as "serving the passage of the public at large," a private road that passes through from public road to public road, or a dead-end private road that the public at large nonetheless uses to enter/leave public facilities or shopping streets.

State of the private road	Valuation (Valuation Basic Circular 24)
The public at large passes (through-road etc.)	Not assessed (zero)
Only specified people pass (cul-de-sac / dead-end)	30% of the value were it not a private road
A within-site path solely for your own land	May be included in the residential land, not distinguished as a private road

Which category applies, the relation to the roadside-land price, and the specific valuation are the tax accountant's judgement. This article does not assert an individual valuation (unverified). Confirm with a tax accountant along with the inheritance-tax filing and the capital-gains calculation. The whole picture of inherited real estate is at consultation on inherited real estate.

Registration, surveying, tax and disputes — who gets which?

The roles split. A private road involves many qualifications, so a little sorting at the outset avoids confusion.

What to do	Handler
Site survey, road-category confirmation, buyer search, brokerage, disclosure statement	Yotsuba Real Estate Co., Ltd. (licensed real estate agent)
Inheritance registration (title change) of the private-road share and residential land	Judicial scrivener
Inheritance-tax valuation of the private road, capital-gains-tax calculation/filing	Tax accountant
Subdivision, boundary confirmation, land-area survey map of the private road	Land and house investigator
Disputes among co-owners over passage easement / excavation consent	Attorney
Support arranging documents other than those filed with public offices, such as consent forms	Administrative scrivener (within what may be prepared)

The site survey, road-category confirmation, buyer search, brokerage and disclosure statement (Building Standards Act aside, under Real Estate Brokerage Act Art. 35, private-road burdens are a matter to explain) are handled by Yotsuba Real Estate Co., Ltd. (licensed real estate agent, Tokyo Governor (1) No. 113304). Inheritance registration goes to a judicial scrivener, valuation/tax to a tax accountant, subdivision/boundary confirmation to a land and house investigator, and disputes among co-owners to an attorney — each an independent business entity, engaged by you directly. We assist, as a single window, with the sequencing when several windows move in parallel. We neither pay nor accept referral fees or introduction commissions. Whether land with unfixed boundaries can be sold is at can land with unfixed boundaries be sold. Consultation is free of charge.

Frequently asked questions

Q. Can I sell just the private-road share?
A. Legally you can sell your own co-ownership share, but a private-road share alone usually has almost no use and attracts little price. Selling it as one with the front residential land is the practice. If you sell the land but keep the share, the buyer ends up using land abutting someone else's private road without passage/excavation consent, which sows later disputes.

Q. I inherited land abutting a 2nd-para road. What do I watch for on a sale?
A. On a Building Standards Act Art. 42(2) deemed road (2nd-para road), when the buyer rebuilds, the site must be set back to the line 2 m from the road centreline, with no building/wall in the set-back part and no counting it toward building area. This goes directly to the buyer's design and finance plan, so we convey it carefully in the disclosure statement. The road category cannot be told from the registration, so confirm at the specified administrative agency.

Q. Can passage/excavation consent always be obtained?
A. Whether it can depends on the number, relationship and management of the co-owners. The revised Civil Code (in force 1 April 2023) arranged for management and minor changes of co-owned property to be decided by a majority of share value, but consent for works like excavation is highly case-specific, and in practice consent forms are exchanged individually with the relevant parties. If it becomes a dispute, we connect you to an attorney. We assist with the outlook and the sequencing of explanation to the buyer and bank.

Q. What is the inheritance-tax valuation of an inherited private road?
A. Under Valuation Basic Circular 24, a private road is in principle valued at 30% of what it would be were it not a private road, and a private road serving the passage of the public at large (through-road etc.) is not assessed (zero). Which category applies, the relation to the roadside-land price, and the specific valuation are the tax accountant's judgement. Confirm with a tax accountant along with the inheritance-tax filing and the capital-gains calculation.

Sources (primary)

• e-Gov "民法" (Civil Code) — Act No. 89 of 1896. Arts. 249–264 (use, management and change of co-owned property). Revised by Act No. 24 of 2021 (in force 1 April 2023): Art. 251(1) (minor changes not entailing a marked change decided by a majority of share value); Art. 252 (matters of management decided by a majority of share value); court involvement where a co-owner's whereabouts are unknown. Accessed 10 September 2026.
• e-Gov "建築基準法" (Building Standards Act) — Act No. 201 of 1950. Art. 42(1)(v) (a private road with a position designation from the specified administrative agency — position-designated road); Art. 42(2) (a road under 4 m wide with buildings lined along it at the time of enforcement that the agency designates — 2nd-para road / deemed road; set back 2 m from the road centreline). Accessed 10 September 2026.
• National Tax Agency, "Private roads serving the passage of the public at large" — Valuation Basic Circular 24. Land serving as a private road is 30% of what it would be were it not a private road; a private road serving the passage of the public at large is not assessed (zero). Accessed 10 September 2026.
• e-Gov "不動産登記法" (Real Property Registration Act) — Art. 76-2 (duty to apply for registration of ownership transfer by inheritance; in force 1 April 2024). Basis for putting title in order before selling the private-road share and residential land. Accessed 10 September 2026.
• MLIT, "Interpretation and operation of the Real Estate Brokerage Act" — the disclosure under Real Estate Brokerage Act Art. 35; explanation of matters on private-road burdens. Accessed 10 September 2026.

Whether passage/excavation consent can be obtained from the existing co-owners, and how to position excavation consent among the acts (management / change) of co-owned property, depend on the number, relationship and management of the co-owners and cannot be asserted uniformly (unverified); confirm individually before proceeding with a sale. The private-road valuation category (zero or 30%), the relation to the roadside-land price and the specific valuation are judged by a tax accountant; this article does not assert an individual valuation/tax (unverified).

This article is general information; it does not present individual legal or tax judgement. Inheritance registration is by a judicial scrivener; valuation/tax, a tax accountant; subdivision/boundary confirmation, a land and house investigator; disputes among co-owners, an attorney. The site survey and brokerage, and the sale contract, are undertaken by Yotsuba Real Estate Co., Ltd. (licensed real estate agent); preparation of documents filed with public offices, by Yotsuba Administrative Scrivener Office — independent business entities, engaged separately and directly. We neither pay nor accept referral fees.

About the author

Joji Uramatsu — licensed real estate transaction specialist (Tokyo Governor registration No. 293544) and administrative scrivener (registration No. 25087022). Representative Director, Yotsuba Real Estate Co., Ltd. (licensed real estate agent, Tokyo Governor (1) No. 113304); principal, Yotsuba Administrative Scrivener Office. Kohinata, Bunkyo, Tokyo, about five minutes' walk from Myogadani station. For an inherited private-road share, the road category, passage/excavation consent, and the valuation and registration deadlines are put on the same table. Full profile: author page.