Territory Operations | merca.earth

Expand Your Parcel

Expansion grows a parcel into adjacent unclaimed space without registering a separate parcel.

How to expand:

Select your parcel on the map or sidebar.
Click Add Slice in the Selected Parcel Panel, or the + button on the sidebar card.
Draw the new territory. The shape must attach to your existing parcel boundary — it cannot be disconnected.
If the drawn area falls entirely on unclaimed land, the app treats it as an expand_unclaimed operation.
Review the preview: new combined shape and cost for the added area.
Confirm and sign the transaction.

Pricing: You pay for the added area at your current premium: $P = \Delta A \times R \times M$ , where $\Delta A$ is the added area, $R$ is the level's base rate, and $M$ is your parcel's current premium multiplier. Your premium does not change.

Constraints:

The expanded shape must remain a single connected region without holes.
Total area must stay within the level's min/max limits.
The new shape must decompose into valid convex parts under multipart rules.

Rebalance Between Your Parcels

Rebalancing moves area from one of your parcels to another adjacent one you also own. No land cost — you already own both.

How to rebalance:

Select the receiving parcel (the one to enlarge).
Click the R button on the parcel card to enter counterparty-selection mode.
Click the adjacent donor parcel you own. The donor must share an edge with the receiver.
Draw the slice to transfer from donor to receiver.
Review the preview showing updated shapes for both.
Confirm the transaction.

Premium behavior: After rebalance, both parcels adopt the area-weighted average of the two premiums. This prevents premium arbitrage by reshuffling area between a high-premium and low-premium parcel.

info

Both parcels end up with the same premium — the weighted average based on each parcel's area. If parcel A (2 km²) has 1.2× and parcel B (1 km²) has 1.5×, both get (2×1.2 + 1×1.5) / 3 = 1.3× after rebalance.

Requirements:

Both parcels must belong to you.
The parcels must be adjacent (share at least one edge segment).
Both resulting shapes must remain valid single-region parcels within area limits.

Acquire a Slice from Another Owner

Acquisition takes a piece of a neighboring parcel that belongs to someone else. You pay for the captured area.

How to acquire:

Select your receiving parcel.
Click the A button on the parcel card to enter counterparty-selection mode.
Click the adjacent foreign parcel. It must share an edge with yours.
Draw the slice to capture.
Review the preview. Cost is based on captured area and the donor's current pricing.
Confirm and sign. The donor shrinks, yours grows, and the donor's owner receives proceeds via the standard fee split.

Premium behavior: Your receiver's premium becomes the ceiling area-weighted blend of its existing premium and the captured area's donor premium. The donor's premium stays unchanged.

Merge Two Parcels Into One

Merge combines two adjacent parcels you own into a single parcel. The result keeps the ID of the receiving parcel.

How to merge:

Select the receiving parcel on the map or sidebar.
Click the Merge button in the Selected Parcel Panel.
Click the adjacent parcel you own. It must share an edge with the receiver.
Review the preview showing the combined shape and the resulting premium.
Confirm the transaction.

Cost: Gas only — no land payment required.

Premium result: The merged parcel's premium is the area-weighted average of both parcels' premiums.

M_{\text{merged}} = \frac{A_1 \times M_1 + A_2 \times M_2}{A_1 + A_2}

Sale count: The merged parcel inherits the higher sale_count of the two.

Requirements:

Both parcels must belong to you.
The parcels must be adjacent (share at least one edge segment).
The resulting shape must remain a valid single-region parcel within area limits.

Owner Price Controls

Bump Price and Drop Price let you move your parcel's price up or down by one step on the resale ladder. Both buttons appear in the Selected Parcel Panel when you select a parcel you own.

Bump Price

Raises your price by one ladder step. Costs 15% of the current buyout price (7% to the protocol treasury, 8% to the hierarchy pool).

How to bump:

Select your parcel on the map or sidebar.
Click Bump Price in the Selected Parcel Panel.
Review the fee and the new price shown in the preview.
Confirm and sign the transaction.

Your parcel's premium advances one rung. The new buyout price is immediately visible in the detail panel.

Drop Price

Lowers your price by one ladder step. Costs 8% of the current buyout price (hierarchy pool only). You can drop all the way back to the original registration base price — there's no floor above what you first paid.

How to drop:

Select your parcel on the map or sidebar.
Click Drop Price in the Selected Parcel Panel.
Review the fee and the new price shown in the preview.
Confirm and sign the transaction.

warning

Both operations are irreversible. Bump permanently advances the premium one rung. Drop permanently reduces it one rung.

Operation	Cost	Adjacent requirement	Premium effect
Expand unclaimed	Pay for added area	No (unclaimed space)	Unchanged
Rebalance slice	Gas only	Your own parcel	Both adopt area-weighted average
Acquire slice	Pay donor's price	Foreign parcel	Receiver gets blended premium; donor unchanged
Merge owned	Gas only	Your own parcel	Area-weighted average
Bump Price	15% of buyout price	None	Advances one rung up
Drop Price	8% of buyout price	None	Steps one rung down (floor: 1.0×)

Expand Your Parcel​

Rebalance Between Your Parcels​

Acquire a Slice from Another Owner​

Merge Two Parcels Into One​

Owner Price Controls​

Bump Price​

Drop Price​

Operation Comparison​