UPDATE (September 9, 2014, 2:45 pm Pacific Time)

Shortly after publishing this blog, ns came across a forum short article that contradicts the info presented in this blog post. As such, i will testimonial the actual resource code in the Civilization V dll, do some much more testing with the game, and revise the article as necessary. In the meantime, I"ll leaving the unaltered write-up here, for posterity. Ns apologize for the inconvenience.

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A many of structures in Civilization V mention that they are influenced by tiles or resources "near the city", but this quality of being "near a city" is poorly-defined within the game. Therefore what precisely does it mean? ns haven"t seen any type of in-depth articles around this object on the net or in the game"s Civilopedia, so I believed I"d summary the necessary bits here.

Basically, a brick is "near" a city if the city was the first city in the respective realm to case that tile within that is workable radius.

So if you have actually a single tile or source that lies between two cities, and both cities" workable varieties overlap that very same tile, then the tile is not "near" both cities. The is just "near" the first city that owned that tile. This way that if you get in the city monitoring screen and also assign the second city to work that tile, it might receive yield bonuses linked with any kind of improvements or structures that influence it (such together the secure buffing pasture resources), however the tile"s contents will not be considered "near" that second city for various other purposes. This includes:

requirement of an boosted Horse, Cow, or lamb to develop a Stable,requirement the an boosted Iron to develop a Forge,requirement of an improved rock or Marble to develop a rock Works,requirement the an enhanced Gold or silver- to develop a Mint,requirement the the city be surrounding to a mountain in stimulate to develop an Observatory,and therefore on...

Examples that "near the city"

Improved resource for structure Requirement: i beg your pardon city can construct a Circus?

Say you have two cities (for example Rome and Antium) whose workable ranges overlap a pastured Horse. Rome to be the first city to insurance claim the horse tile. Rome can, therefore, develop a Circus (assuming Trapping has been researched). If you go to the management screen of Antium, you deserve to assign that to work the horse tile (which avoids Rome from gift able to work that tile), yet Antium quiet cannot build a Circus. The is, two cities cannot build a structure that calls for they both have actually the exact same tile.


Rome has annexed a brick containing horses and is building a Circus. Later, the tile overlaps v Antium"s workable radius, however it cannot build a Circus because the equine was originally asserted by Rome.

Alternatively, if a source is claimed by a city"s culture, however is exterior of a city"s workable radius (four tiles or much more away), then it never counts as "near" that city. However if you uncovered a second city that does contain that tile within its workable radius, climate the resource will count together "near" the city!

Improved Marble: i beg your pardon city obtain the wonder-production bonus?

This is also how Marble"s wonder bonus works. The wonder-production bonus is only given to the an initial city to insurance claim the tile containing Marble in ~ its workable radius. If a 2nd city overlaps that tile, that does not receive the wonder-production bonus, even if the is currently working the tile.


Antium has actually Marble within its workable radius, however it go not acquire a production bonus towards the wonder since the Marble tile was first claimed through Rome. The wonder-production bonus only applies to Rome, regardless of i m sorry city is working the tile.

Trade route Income: i m sorry city own the source for "resource diversity"?

"Resource diversity" because that trade courses is likewise subject to this same dominance of "nearness". The initial city to case the tile gets credit for that resource in profession route source diversity. Having an additional city overlap ~ above that source does not grant resource diversity come both cities.


Antium is functioning the horses and also marble, but they do not count in the direction of the trade route diversity due to the fact that the tiles room "near" Rome.

When stable a "trading" city, store this in mind. If there room tiles the overlap the 3-tile radii of two cities, you may want to acquisition luxuries or strategic resource tiles in the city you wish to have as a trading hub come ensure the resources go come it. This is particularly true if you space playing Portugal, because you get double gold for resource diversity (1 Gold rather of 0.5 Gold because that each unique, mutually-exclusive resource between the 2 cities).

When to purchase tiles?

Because of the means resources/tiles space "near" one city, there are some cases where you might wish to purchase tile(s) to a guarantee ownership to a certain city. Relying on the normal cultural expansion is no recommended.

Some instances of these situations include:

Two cities" workable radii overlap a Stone. City A is top top Plains and also therefore would certainly not be able to build a rock Works even if it owned an enhanced Stone. City B is on Grasslands, for this reason you might wish to acquisition the stone tile in this city so the it can build a stone Works because that the extra production and happiness.There space Horse/Iron tile(s) within range of two cities. One city will become your unit-factory city (i.e. City v Heroic Epic), and also the other will not. Purchase at least one Horse/Iron tile in the unit-factory city so the it may build a Stable/Forge to rate the production of your army units.

Maximizing clustered resources

In one area wherein a single resource is clustered, you must be mindful of i beg your pardon city claims the tile(s) first. If a single city is very first to claim multiple copies of a single resource, then other nearby cities whose workable variety overlaps with that source will not be able to benefit from having actually that high-end "near" the city.


2 duplicates of rock lie in between Thebes and also Memphis. If Thebes buys one rock tile, and Memphis buys the other rock tile, then both urban can construct a rock Works!

If one city currently has the resource, but there is an additional tile with the same resource, you deserve to purchase the tile in the city that does not have it--that means both cities would own a copy the the source "near" the city. By carefully planning which city annexes which source tile and preventing one solitary city from annexing all tiles include clustered resources, you deserve to ensure the multiple cities will meet the demands for constructing buildings like the forge, stable, rock works, or circus.

"Worked through the city" tile buffs perform not care which city is "near" the tile

For other structures that just buff tiles or sources "worked through the city", the "near" the city ascendancy doesn"t apply. Any type of city that met the requirement(s) to develop such a building, and does construct the building, will get the bonus from working the appropriate tile(s) nevertheless of even if it is the brick or source is "near" the city. Such structures include:

bonus food top top Wheat, Deer, and also Bananas from Granary,bonus manufacturing on Marble and rock from rock Works,bonus production on pastures from Stable,bonus food and also production top top sea sources from Lighthouse,bonus gold on Gold and also Silver indigenous Mint,bonus science on jungles native University,bonus production and also gold on sea resources from Seaport,bonus production on tiles nearby to rivers native Hydro Plant,bonus gold on stone and Marble native the Mausoleum of Halicarnassus wonder,bonus food and also production on desert from Petra wonder

The difference in between "nearness" and "ownership"

Further complicating the rules is the additional concept of brick ownership. Which city "owns" a tile, is live independence of--but similar to-- which brick is "near" the city. Just like with "nearness", cities "own" tiles if that city is the an initial to claim the brick (or acquisition it).

In this case, however, the ownership go not treatment whether the claimed tile is within the city"s workable radius! A city may expand its borders up come 5 tiles away from natural social border expansion, even though its citizens have the right to only occupational within 3 tiles. If the city is captured, traded away, or razed, all of its owned tiles will certainly switch property (or end up being unclaimed in the case of razing).

Founding a new city in own territory gives the brand-new city ownership of its surrounding tiles, but not the various other tiles that are "near" the city.Shown here, the new city Zaragoza will be assigned the Aluminum as being "near" it, since it is within 3 tiles.Zaragoza does no "own" the Aluminium though, since it was acquired by Madrid in Madrid"s fourth ring.

This will come into play when new cities are established near existing urban that have solid culture, and which have currently claimed or annexed tiles in the vicinity of the brand-new city. Those already-claimed tiles tho count together "owned" through the original city. However, if those tiles are exterior of the old city"s workable radius (4th or fifth ring tiles), yet inside the workable radius that the new city (within 3 tiles), climate those tiles will be considered to be "near" the new city.

If the old city is captured, traded away, or razed, then its own tiles will shift to the new ownership (or end up being neutral in the case of razing), also if they are "near" the new city. Likewise, if the brand-new city is caught or traded away, the tiles originally owned through the old city however are "near" the new city will not transfer v the brand-new city. Lock will remain with the old city.

Zaragoza gets credit for the nearby Aluminum for resource diversity, also though Madrid own it. If Zaragoza is traded away or conquered, it just keeps its adjacent tiles.

Tiles nearby to a city (the innermost ring) are an exception. They space always taken into consideration to be both "owned" by and "near" the adjacent city. The only exception is if the surrounding tiles space stolen via a Citadel.

Unique buildings follow the exact same rules

Civilizations" unique buildings likewise follow the very same rules outlined above. There"s just a couple of unique buildings that are relevant to this mechanic, for this reason I"ll talk about them below:

The polishing Ducal Stable

The polishing unique building is a steady replacement. It follows the very same rules outlined above. It requires that the city have at least one pasture innovation nearby. For this reason if 2 cities re-publishing the exact same Horse, Cow, or sheep within your workable radius, and they perform not have accessibility to any other adjacent Horse, Cow, or Sheep, then just the very first city to case that tile will have the ability to build the Ducal stable (once the source is improved).

The bonus gold and also production ~ above pastures the is listed by the Ducal secure does not care if the functioned tile is "near" the city. If girlfriend met the requirement to develop the Ducal secure in a city, then the city will receive the bonus yield on any type of pasture resource that that works. As a rapid reminder, the bonus yield detailed by the Ducal secure is offered to the basic resource, and also not come the pasture development (the pasture improvement is only forced to construct the Stable; once built, even pet tiles that space not yet enhanced receive the bonus yield).

The Arabian Bazaar

Arabia"s unique building is a small bit more complicated, because it has a distinct mechanic linked with it.

The Bazaar provides an extra copy of any type of improved luxury source that is near the city.

Example the a deluxe being overlapped by two cities. The doesn"t matter which city works the high-end tile. As lengthy as the Bazaar is in the very first city to have asserted the resource, you obtain the duplicate.

Say Mecca in the above example a resource of Incense in its external ring the workable tiles. Mecca can build a Bazaar and gain 2 extra Incense because that Arabia to trade away. Say that Medina"s workable radius overlaps with the Incense, yet Medina walk not have a Bazaar. You deserve to use the city management screen to assign Medina to job-related the Incense. In this case, even though Medina is functioning the Incense, and also Mecca is not, and also Medina walk not have actually a Bazaar, you will still obtain a duplicate Incense due to the fact that it is still "near" Mecca (which does have a Bazaar).

The result of this is the if you found a new city that have the right to overlap v luxuries that an existing city with a Bazaar, you deserve to assign that new city to occupational those luxuries there is no losing access to the duplicate resource of the luxury! You can safely profession away your excess luxuries also while tho in a period of expansion without worrying around the profession deal ending up being broken if girlfriend shuffle roughly worked tiles in between cities.

The bonus yield on Oases and also Oil is not affected by the "near" the city rule, as this is a straightforward tile buff. If the city right now working the Oasis or Oil has a Bazaar, the tile will receive the bonus yield, regardless of whether that city is the tile"s initial owner.

Unique buildings that buff tiles "worked through the city" carry out not care about "nearness"

Unique structures that buff tiles "worked by the city" follow the very same rules as regular structures that usage the "worked by the city" rules. These include:

The Aztec Floating Garden just buffs any type of lake tile worked by the city, nevertheless of the lake"s original owner.

The Iroquois Longhouse simply buffs any forest tile operated by the city, regardless of the forest"s initial owner.

The Siamese Wat complies with the very same rules as the consistent University. It just buffs any kind of jungle tile operated by the city, nevertheless of the tile"s initial owner.

I expect these clarifications are helpful to you other Civ-players. Simply so the it doesn"t seem totally irrelevant, I would certainly assume the these same rules will use to sources in the upcoming Beyond Earth, since it is based on the very same engine. However, I do not recognize for certain.

Happy Civ-ing!


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