Fencing is a dominant element in exterior architecture. Many communities regulate fencing to some degree as a measure to control the visual quality of the landscape. A regulated process can also prevent errors in layout that can lead to costly land ownership disputes. Standard fencing regulations are often found in the land use or building code for the community. There can be significant variation in how permission to put up a fence is handled, but some features are common in fencing regulations.
Fence design is often regulated to some extent; the scope of the regulations depends on community values. Fence requirements also vary according to the type of neighborhood. Commercial and multi-residential are generally treated differently from single-family residential. Fence height is often regulated, and a few materials are not permitted. Some places encourage and even require fencing details consistent with an architectural theme.
Barbed wire is unlikely to be allowed in a residential neighborhood, and other materials, such as chain link, may be allowed in one place and not another. A distinction is made between materials in some cases, that influence the aesthetics or character of the visual environment. Chain link and concrete could be subject to a reduced-height requirement, and trellises may be allowed to be higher. The finished side of the fence may be directed to face the public or neighbors.
Often neighbors will share the cost of a fence; it's the law in some states. Fence design and location can be a source of conflict; it's best to consult neighbors beforehand. Many communities have a process to resolve boundary conflicts and can advise on conflicts over financial obligation and design issues. Regulations often prohibit obstructing views with the fence, especially when safety is an issue, and in some cases a fence in unsightly condition may be a violation.