{"id":5180,"date":"2026-07-07T18:09:15","date_gmt":"2026-07-07T16:09:15","guid":{"rendered":"https:\/\/anguloarquitectura.com\/en\/reflections\/nomativa-esencial-compra-terreno\/"},"modified":"2026-07-13T12:34:51","modified_gmt":"2026-07-13T10:34:51","slug":"urban-planning-regulations","status":"publish","type":"post","link":"https:\/\/anguloarquitectura.com\/en\/reflections\/urban-planning-regulations\/","title":{"rendered":"Urban Planning Regulations: Everything You Should Check Before Buying Land"},"content":{"rendered":"

Buying land is one of the most important steps in building a home. However, before making a decision, it’s advisable to review the municipality’s urban planning regulations to verify that the plot is buildable and to understand the conditions that may influence the design, budget, and obtaining a building permit.<\/p>\n

It’s important to keep in mind that urban planning regulations vary from one municipality to another and even between different areas within the same municipality. Therefore, parameters such as buildable area, occupancy, maximum height, and setbacks are not the same for all plots and should always be consulted for each specific case.<\/p>\n

Property Registration Status<\/h3>\n

The first step is to check the legal status of the land. The best way to do this is to request a simple property report<\/strong> from the Land Registry.<\/p>\n

This document allows you to verify that the person selling the plot is indeed the owner and to find out if the property is affected by mortgages, liens, registered encumbrances, or other charges or limitations that may affect the sale.<\/p>\n

\"Construcci\u00f3n<\/p>\n

Barrika House Project<\/a><\/p>\n

Cadastral Status<\/h3>\n

It is also important to review the Cadastre information. The Descriptive and Graphic Cadastral Certificate<\/strong> includes data such as the area, location, cadastral reference, ownership, and boundaries of the plot.<\/p>\n

It is advisable to verify that this information matches, or is at least compatible with, the information in the Property Registry and with the physical reality of the land. If there are discrepancies, it is best to determine their origin before purchasing. It is also advisable to confirm with the town hall that the plot is up-to-date on its municipal taxes.<\/p>\n

Land Classification and Zoning<\/h3>\n

One of the most important aspects is understanding the urban planning status of the plot.<\/p>\n

Land classification<\/strong> determines whether the land is urban, developable, or rural. Zoning<\/strong>, in turn, establishes the permitted uses (residential, commercial, industrial, etc.), the authorized building types (detached, semi-detached, or terraced houses, among others), and the specific building conditions. It is also advisable to check if the plot has the status of a building site or if it needs to complete the urbanization works before being able to obtain the building permit.<\/p>\n

Building area, occupancy, and minimum plot size<\/h3>\n

These parameters determine the maximum size and volume that a dwelling can have.<\/p>\n

Building area<\/strong> establishes the total surface area that can be built based on the size of the plot and is usually expressed as a coefficient in buildable square meters per square meter of land (for example, a coefficient of 0.5 m\u00b2\/m\u00b2 on a 1,000 m\u00b2 plot allows for a construction of up to 500 m\u00b2).<\/p>\n

Buildable area = Plot area \u00d7 Building area coefficient<\/p>\n

Occupancy<\/strong> indicates the maximum percentage of the plot that the building can occupy on its footprint, that is, the surface area that can be built on the ground (for example, a 30% occupancy on a 1,000 m\u00b2 plot limits the ground floor to 300 m\u00b2).<\/p>\n

Maximum occupied area = Plot area \u00d7 Occupancy percentage<\/p>\n

The minimum plot size<\/strong>, on the other hand, is the area required by regulations to be able to build. However, some urban planning ordinances or instruments provide for exceptions for pre-existing plots or certain situations, so it is advisable to review each case individually.<\/p>\n

\"\"<\/a><\/p>\n

Easements and Other Restrictions<\/h3>\n

Even if a plot of land is buildable, it may be subject to various restrictions that affect the project.<\/p>\n

Easements<\/strong> are rights or limitations that affect the use of the land, such as rights of way, views, utility lines, or power lines.<\/p>\n

In addition, there are restrictions<\/strong> arising from other regulations that may impose further limitations, such as proximity to roads, railways, riverbeds, flood zones, coastlines, protected forests, or cultural heritage sites. In these cases, it may be necessary to respect minimum distances, obtain specific permits, or adapt the design of the house.<\/p>\n

Height, Setbacks, and Minimum Frontage<\/h3>\n

Urban planning regulations also govern the position and dimensions of the dwelling within the plot.<\/p>\n

Among the most common parameters are the maximum number of stories, the maximum building height<\/strong>, measured according to the urban planning ordinance (cornice height, ridge height, or total height), and mandatory setbacks<\/strong>, which are the minimum distances the building must maintain from the plot boundaries and the public road.<\/p>\n

Some ordinances also require a minimum frontage length<\/strong>, that is, the minimum width the plot must have in contact with the street to be able to build.<\/p>\n

All these parameters directly influence the design of the dwelling and the actual surface area available for construction.<\/p>\n

\"\"<\/p>\n

Natural Hazards and Environmental Protection<\/h3>\n

It is also advisable to check if the plot is affected by natural hazards or any environmental protection designation.<\/p>\n

The existence of flood zones, areas at risk of forest fires, geologically unstable terrain, or protected areas may affect the project and even require additional studies or permits before construction.<\/p>\n

Aesthetic and Urban Planning Requirements<\/h3>\n

In some municipalities, urban planning regulations establish criteria aimed at maintaining a homogeneous appearance of the surroundings or protecting architectural and landscape heritage.<\/p>\n

These requirements may regulate aspects such as the type of housing, the type of roof, facade materials and colors, plot enclosures, or certain architectural elements. In historic centers, residential developments, or protected areas, these requirements are usually more specific and must be considered from the earliest stages of design.<\/p>\n

\"Reforma,<\/p>\n

Casa Fuelle Project<\/a><\/p>\n

Why Consult an Architect Before Buying Land?<\/h3>\n

Interpreting urban planning regulations is not always straightforward. An architect can analyze the viability of the plot, identify potential limitations, and verify that the house you have in mind can be built in accordance with current regulations. Conducting this review before purchasing helps avoid problems during the building permit process, reduces the risk of unexpected costs, and allows for a more informed decision. In many cases, a preliminary consultation represents significant savings in time and money during the project’s development.<\/p>\n","protected":false},"excerpt":{"rendered":"

Buying land is one of the most important steps in building a home. However, before making a decision, it’s advisable to review the municipality’s urban planning regulations to verify that the plot is buildable and to understand the conditions that may influence the design, budget, and obtaining a building permit. It’s important to keep in […]<\/p>\n","protected":false},"author":5,"featured_media":1921,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[],"class_list":["post-5180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-architecture"],"acf":[],"_links":{"self":[{"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/posts\/5180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/comments?post=5180"}],"version-history":[{"count":4,"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/posts\/5180\/revisions"}],"predecessor-version":[{"id":5185,"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/posts\/5180\/revisions\/5185"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/media\/1921"}],"wp:attachment":[{"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/media?parent=5180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/categories?post=5180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/anguloarquitectura.com\/en\/wp-json\/wp\/v2\/tags?post=5180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}