The OMI values of the Italian Revenue Agency, area by area: a yardstick for comparison, not an appraisal of a single property.
In Grottaferrata, the four zones with Agenzia delle Entrate values range from €1,750 to €3,200 per square metre for homes in normal condition. The most useful figure for you is this: the Centro Abitato (zone B1) is the most expensive, at €2,150-3,200/m², while Colle De Paolis (zone E2) is the cheapest, at €1,750-2,600/m².
The figures you see are from the 1st half of 2026. If you are looking at an auction in the municipality, compare the price with the range for the zone where the property is located. The auctions currently under way are listed below.
The median of the minimums is €1,900/m² and that of the maximums is €2,825/m²: half of the zones are below these values, half above. To understand the price of a zone, always look at both the minimum and the maximum, because the range is wide.
In 2025, the 4+4 (the open-market lease) stood at €9.2/m² per month across 79 homes, while the 3+2 (the agreed-rent lease, canone concordato) stood at €8.7/m² per month across 156 homes. If you are evaluating a rent in the centre, bear in mind that zone B1 reaches €12.3/m² per month.
This serves to understand the character of the area, not the price of a single property. The sales completed in the 2nd quarter of 2026 concern the rest of the province of Rome, not just Grottaferrata: 5,401 homes, with an annual change of 5% (provisional data, Agenzia delle Entrate – OMI).
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 | 2,150 | 3,200 |
| Periferica | 1 | 2,000 | 2,950 |
| Suburbana | 2 | 1,775 | 2,650 |
From 1,750 €/m² in the cheapest area to 3,200 €/m² in the most expensive one (1.8 times as much). Median rent: 8.4 €/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 Abitato (Via Roma) · Central | Central | 2,150 – 3,200 | 8.5 – 12.3 |
| D1Colle delle Ginestre - Colle delle Streghe -Casal Molara - Molara · Outskirts | Outskirts | 2,000 – 2,950 | 6.8 – 9.8 |
| E2Colle De Paolis · Suburban | Suburban | 1,750 – 2,600 | 6.3 – 9.3 |
| E4Pozzo Calvino · Suburban | Suburban | 1,800 – 2,700 | 6.8 – 10 |
Grottaferrata · Via Anagnina 20/22
Land · 151,463 m²
Previous starting price: €735,000 Cut by 25% (auction of 27 May 2026)
€4/m²
Mortgage ≈ €2,231 a month (Indicative payment: a mortgage of 80% of the starting price over 25 years at the ECB average rate. Not a credit offer.)
Grottaferrata · Via dei Peschi 8
Land
Previous starting price: €68,136 Cut by 25% (auction of 5 September 2024)
Mortgage ≈ €207 a month (Indicative payment: a mortgage of 80% of the starting price over 25 years at the ECB average rate. Not a credit offer.)
Grottaferrata · Via delle Sorgenti 28
Storage room · 60.8 m²
Previous starting price: €60,000 Cut by 25% (auction of 20 October 2026)
€740/m²
Mortgage ≈ €182 a month (Indicative payment: a mortgage of 80% of the starting price over 25 years at the ECB average rate. Not a credit offer.)
Grottaferrata · Via delle Sorgenti 30
Storage room · 60.8 m²
Previous starting price: €41,000 Cut by 25% (auction of 20 October 2026)
€506/m²
Mortgage ≈ €124 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 | 9.2 | 79 |
| agreed-rent lease 3+2 (canone concordato) | 8.7 | 156 |
| short-term lease (transitorio) | 8.9 | 21 |
| agreed short-term lease for students | 8.3 | 20 |
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 ↗
