Eco-friendly stays in Rome: what 'sustainable' actually means in a 19th-century palazzo

I am Luca Rossi. I own and run Hotel Colle Oppio, a 24-room independent hotel in an older palazzo on Via Panisperna, in Rione Monti. I am writing this because every spring I read another “Top 10 Eco-Friendly Hotels in Rome” list and wonder what the writer measured. Usually nothing. Usually they liked the website.

If you searched for eco friendly hotels Rome Italy and landed here, you deserve a more careful answer than the listicles give you. So this is the version with the curtain pulled back: what a small palazzo hotel can actually do, what we cannot, and why some of the least glamorous things — preservation, walking, public water — do most of the work.

We do not hold a sustainability certification. I want to say that on the first page rather than the fifteenth.

What we measure (and what we can’t)

There is a real answer to “is this hotel sustainable?” and a marketing answer. The marketing answer is whatever the hotel puts on its homepage. The real answer requires numbers: kilowatt-hours per occupied room-night, litres per guest, kilograms of waste, supplier kilometres, food waste. We measure some of these, not all well.

What we track:

• Electricity consumption by month, against occupancy. We replaced incandescent and halogen fixtures with LED throughout the building during 2021-2022. The drop in lighting load was the easiest sustainability win we ever booked, and the least photogenic.
• Gas consumption for the boiler, by month. Heating in winter is the single largest energy cost in this building. More on why below.
• Linen and towel cycles. We change linens between stays rather than every night, and we offer the standard towel-reuse card. We also note how many guests opt in. The honest data: about half do, which is roughly the figure most independent hotels report and well below what marketing brochures suggest.
• Breakfast waste, eyeballed each morning by whoever cleared the room. Not a laboratory measurement. Useful enough to adjust orders.

What we do not measure well, and where I would be sceptical of any small Roman hotel that claims to:

• Carbon footprint of guest travel. Most of our footprint is the flight that brought you here. A 24-room hotel cannot honestly account for that, and offsets purchased on a guest’s behalf are usually of doubtful integrity.
• Embodied carbon of the building. The palazzo was built once, more than a hundred years ago. The carbon was emitted before any of us were born — this matters in our favour, see below, but I cannot put a number on it.
• Supply-chain emissions for coffee beans, cleaning chemicals, amenities. We can tell you where things come from; we cannot tell you the lifecycle CO₂.

The EU Ecolabel for tourist accommodation exists, and so does Legambiente Turismo — the older Italian scheme run by the environmental NGO since 1997. Both are real. Both involve mandatory criteria covering water, energy, waste, chemicals, and food sourcing, with onsite auditing. They are also, for a 24-room independent, a significant administrative undertaking we have not yet completed. We are looking at Legambiente Turismo for 2027. Until we hold it, I will not gesture at sustainability with vague language. Here is what we do, here is what we don’t.

Breakfast: where each ingredient comes from

If you want to know what a hotel actually believes about sustainability, look at the breakfast room.

Italian breakfast helps us here, almost by accident. No hot buffet. No scrambled eggs kept warm under a heat lamp from 7:00 to 10:30 and then thrown out. The Italian model — espresso, a cornetto, fruit, bread, cold cuts, cheese — narrows the focus. Less to waste, less to over-produce, less reliant on a long supply chain. The full list is on the Italian breakfast page.

Where each thing comes from, as of the spring of 2026:

• Cornetti are delivered each morning from a bakery a few minutes’ walk from the hotel, in Monti. The flour is Italian. They arrive in a tray and are gone by 10:30. Whatever is left at 10:35 goes home with staff, not into a bin.
• Bread and rosette come from the same bakery. Same logic.
• Pecorino Romano is DOP, produced in Lazio (and Sardinia, which is the historical reason the cheese exists). The wheel we cut from is from a Lazio dairy. The DOP designation means something specific: production area is regulated, sheep’s milk is the only legal input, the method is fixed. It is not a marketing word.
• Mozzarella di bufala is Mozzarella di Bufala Campana DOP. The DOP zone covers parts of Campania, Lazio (Frosinone, Latina, Roma), Apulia and Molise — so it is regional, not “Italian” in the abstract. We get ours from a producer in Lazio.
• Prosciutto crudo and mortadella are Italian, named-region. Mortadella is from Bologna because that is where mortadella is from.
• Fruit is whatever is in season at Campo de’ Fiori or Testaccio. April means strawberries. July, peaches and figs. November, the first Sicilian oranges. If a fruit is not in season in Italy, it is not on our table. No out-of-season blueberries flown from the Andes.
• Milk is from a regional Lazio dairy.
• Eggs for the homemade cakes are Italian, from a small supplier our pastry person has used for years.
• Coffee beans are roasted in Italy. The beans themselves are not Italian. No coffee bean is. We do not pretend otherwise.
• Orange juice is squeezed to order from Sicilian oranges in season (late November through April). Sicilian fruit travels by truck. It travels less than orange juice from Brazil in a tetra pak.

This is not a closed-loop, zero-mile, regenerative-agriculture breakfast. It is a Roman breakfast made with regional ingredients, sourced at a scale that fits a 24-room hotel. That is what we can do. The honest claim is “regional and seasonal, with the supplier names available on request,” not “farm-to-table.”

Linens, toiletries, water

This is the section that most hotel sustainability pages spend their entire word count on. It is not the most important part. But it is real, so:

Linens are washed at high temperature between stays — not after every night of a multi-night booking — and the towel-reuse card is taken up by about half our guests. Soaps and detergents are biodegradable, from an Italian commercial laundry supplier. We do not air-dry; no space.

Toiletries are refillable wall-mounted dispensers — shower gel, shampoo, conditioner, hand soap — installed in every bathroom in 2022. The single-use plastic bottles that were standard for thirty years are gone from our rooms. Refills come from bulk containers; formulations are paraben-free. A 24-room hotel at average occupancy was discarding several thousand small plastic bottles a year before the switch.

Water is the one I want to talk about most, because Rome is unusual.

Rome’s tap water is excellent. Acea, the city utility, tests it about 250,000 times a year. The same water flows from the nasoni — the cast-iron public drinking fountains, almost 2,500 of them across the city, running continuously since the 1870s. Free, everywhere, potable. There is one a few minutes from the hotel and several between here and the Colosseum.

We tell guests this at check-in. We give every guest a refillable water bottle on arrival and point out the closest nasoni on the map. We sell zero plastic water bottles in the breakfast room and zero in the rooms. Glass-bottled still and sparkling water at breakfast is washed and reused.

If you want a single, defensible, measurable sustainability practice for a Rome hotel, this is the one. A guest drinking Roman tap water from a refillable bottle for a four-night stay is not buying eight to twelve plastic bottles. Across 24 rooms across a year, the number is not small.

Heritage building tradeoffs

Now the awkward part.

Our palazzo is an early-twentieth-century Roman building inside the historic centre. Buildings like ours sit under the Soprintendenza — the heritage authority — and inside the Carta per la Qualità framework that protects the historic fabric of central Rome. What we can change about this building, particularly anything visible from the outside, is constrained by law.

What this means in practice:

• External wall insulation is not permitted. Modern external thermal cladding on a façade like ours would be both visually destructive and, in this protected area, illegal. The walls are masonry, thick, and uninsulated by modern standards. Their thermal mass helps in summer and hurts in winter.
• Window replacements must match historic profiles. During the 2019 conversion we installed double-glazed units machined to match the original frames. They were expensive. They gained us soundproofing — the reason we put them in — and modest thermal improvement. They are not the triple-glazed units a new build would use. They are not allowed to be.
• Solar panels on the façade or street-visible roof are restricted. Italian case law on Soprintendenza decisions in central Rome makes clear the answer is usually no in visible locations. We are exploring a low-profile installation on a non-visible portion of the roof. The conversation is ongoing.
• Internal works are easier. LED lighting, modern boilers, low-flow taps and dual-flush WCs, smart thermostats, refrigeration — all of these we can do, and have. Strictly internal works do not generally require Soprintendenza approval.

Read this carefully, because it is the part that the eco-hotel listicles miss entirely:

A new-build hotel in a Roman suburb can install external insulation, ground-source heat pumps, full PV, mechanical ventilation with heat recovery, and triple glazing. On the operating-energy axis, it will outperform us. But on the embodied carbon axis — the carbon it took to make the building in the first place — a new structure starts deeply in deficit. Demolition and replacement of an existing serviceable building is one of the most carbon-intensive activities in construction. Reuse of existing building stock, even with imperfect retrofit, is now understood in European architectural and policy circles as a structural component of climate strategy, not a sentimental footnote.

So: our walls leak heat in February. Our boiler works harder in winter than a heat pump in a passive house would. And we are still, on the broader carbon ledger, better than the alternative of knocking the building down and starting again. This is not a defence of doing nothing. It is the honest physics.

Our 12-month roadmap

Here is what we are working on between now and spring 2027. Public, dated, no greenwash.

• Boiler upgrade. Our current gas boiler is the original from the 2019 conversion. It is not at end of life, but its efficiency is below current best-in-class condensing units. We are budgeting a replacement for the 2026/27 winter shutdown window.
• Smart room thermostats. Currently we have a per-room thermostat with no integration. Replacing them with a connected system that detects occupancy and key-card status would cut heating waste in unoccupied rooms. Target: end of 2026.
• Roof PV feasibility. We are commissioning a feasibility study for a low-profile PV array on a non-street-visible portion of the roof. The study includes the Soprintendenza pre-consultation. We are not promising panels. We are promising a real answer.
• Legambiente Turismo audit. We are starting the process for the Legambiente Turismo certification — the Italian environmental NGO scheme that has audited tourist accommodations since 1997, with annual onsite verification. We expect this to take twelve to eighteen months. If we cannot pass, we will say so.
• Breakfast measurement. The eyeballed waste log becomes a written log this year. Boring, useful.
• Refill station for guest bottles. A filtered chilled-water tap at reception, so guests can refill the bottle we give them without walking to a nasone in the rain. Small project, summer 2026.

If you want the long version of who we are and how we operate, the About page has the rest. The rooms page has the rooms.

A word on listicles

Rome has a few hotels with serious environmental certifications and serious investment in sustainability — they exist, good for them. Rome also has a great many hotels whose “eco” credentials amount to a towel-reuse card and an agency-written paragraph. The listicles do not distinguish between the two, because the listicles are written from press releases.

If you are choosing a hotel in Rome and sustainability matters to you, ask three questions: what do you measure, what do you not measure, and what is the next thing you are doing about it? A hotel that can answer concretely is doing the work. A hotel that cannot is doing the marketing.

We do not hold a certification. We do hold honest answers. For now, that is the version we can stand behind.

— Luca