The OMI values of the Italian Revenue Agency, area by area: a yardstick for comparison, not an appraisal of a single property.
In Tarquinia, in the first half of 2026, OMI property values for sales (quotazioni OMI) of the Italian Revenue Agency (Agenzia delle Entrate) range from €800/m² in the agricultural zone to €1,750/m² in the Espansione Esterna al Centro Storico. In the municipality there are 4 zones with values.
The centre of the range lies between about €1,225 and €1,600/m². These are the medians of the minimums and of the maximums, that is, the value that leaves half of the zones below and half above. If you are looking at an auction in the Centro Storico, the zone reference runs from €1,200 to €1,500/m². In the Tarquinia Lido - Marina Velka zone the range is from €1,350 to €1,700/m². The value for homes in excellent condition is published in 3 zones out of 4, so in one zone you will not find it.
On rents, the median of the zones is €5.3/m² per month. The rents are the average rents of contracts registered with the Italian Revenue Agency. The 3+2 agreed-rent lease (canone concordato) is at €5.4/m² per month across 155 homes, and the 4+4 open-market lease is at €5.4 across 42. The student transitional lease rises to €5.9 across 27 homes, while the general transitional lease falls to €3.0 across 77. If you are considering a rental, keep an eye on the type of contract together with the price.
In 2024 the average declared income is €23,495 for 11,843 taxpayers, according to the MEF. Home sales concern the rest of the province of Viterbo, not just the municipality: in the 2nd quarter of 2026 there were 909, and 3,554 over the last 4 quarters. 30% are made with a mortgage and the annual change is -1%.
When you open one, compare the price with the range of the zone where the property is located and check the condition of the home.
Text updated on 5 November 2026, on OMI values for the first half of 2026.
| Band | Areas | Average minimum €/m² | Average maximum €/m² |
|---|---|---|---|
| Centrale | 1 | 1,200 | 1,500 |
| Semicentrale | 1 | 1,250 | 1,750 |
| Suburbana | 1 | 1,350 | 1,700 |
| Extraurbana | 1 | 800 | 1,200 |
From 800 €/m² in the cheapest area to 1,750 €/m² in the most expensive one (2.2 times as much). Median rent: 5.3 €/m² a month.
Source: Italian Revenue Agency (Agenzia delle Entrate) – OMI property values, first half of 2026. Type: standard homes. Sale in €/m², rent in €/m² a month, minimum and maximum of the area. Areas with a link have a page with the auctions in progress.
| Area | Band | Sale €/m² | Rent €/m² a month |
|---|---|---|---|
| B1Centro Storico · Central | Central | 1,200 – 1,500 | 4.5 – 5.4 |
| C1Espansione Esterna al Centro Storico · Semi-central | Semi-central | 1,250 – 1,750 | 4.5 – 7 |
| E1Tarquinia Lido - Marina Velka · Suburban | Suburban | 1,350 – 1,700 | 5.5 – 7.5 |
| R1Agricola · Rural | Rural | 800 – 1,200 | 3 – 4.3 |
Tarquinia · Vicolo Segreto 17
Apartment · 71 m²
€923/m²
Mortgage ≈ €265 a month (Indicative payment: a mortgage of 80% of the starting price over 25 years at the ECB average rate. Not a credit offer.)
| Contract | €/m² a month | Homes |
|---|---|---|
| open-market lease 4+4 | 5.4 | 42 |
| agreed-rent lease 3+2 (canone concordato) | 5.4 | 155 |
| short-term lease (transitorio) | 3 | 77 |
| agreed short-term lease for students | 5.9 | 27 |
The OMI values of the Italian Revenue Agency are ranges for an area, a property type and a period. They do not value a single flat and do not replace a professional appraisal. A fair comparison also needs condition, floor, exposure and documentation.
On the auction pages, the “below the area value” discount shows how far the minimum offer per square metre is below the minimum of the area range. A lower value does not equal an expected gain.
See the Italian Revenue Agency values ↗