Sources for Hotel Marcel
Every line on the Hotel Marcel record, with where it came from, what kind of source it is and the date we read it.
Back to the record- Current as of
- 13 Sept 2026
- Last reviewed
- 14 Aug 2026
- Strongest evidence
- Certified
- Coverage
- Documented across 8 of 8 pathways.
Practical details and location
The practical details and the map point, 41.2966, -72.9187
The property’s own website
The property's own site: its name and its place are on the page
Safely managed drinking water, USA, 2024: The World Health Organization reports 98 per cent of the population nationally, 98 per cent in urban areas using a safely managed drinking water service. This describes the country, not this property, and says nothing about what reaches a guest room here. It is recorded because it is the background against which a property's own treatment is worth publishing.
Regional data is context about the location. It does not establish conditions inside a room.
Ambient PM2.5 and PM10 near New Haven, Connecticut, United States, 30 days to 2026-08-17: Modelled ambient air over this location averaged 12.2 micrograms per cubic metre of PM2.5 and 13.4 of PM10 across the 720 hours to 2026-08-17, peaking at 67.5 PM2.5. The World Health Organization annual guideline for PM2.5 is 5. This is the outdoor air over the area, modelled rather than measured on site, and it is not a reading of the air inside any room.
Regional data is context about the location. It does not establish conditions inside a room.
Evidence by area
All eight areas, in the order this index reads them. Every line was read and placed by a person.
Air Ecology
Trade press reporting on the retrofit states that incoming ventilation air is filtered by MERV 13 rated filters. The filter grade is named, no filter change interval, airflow rate or particulate reading is published.
In their words: “The incoming ventilation air is filtered by high-efficiency MERV-13-rated filters which reduces the quantity of airborne pollutants.”
Read it: Making Passive House History at Hotel Marcel Archived copy
The same article names the energy recovery ventilator manufacturer as Swegon and describes the unit transferring heat and moisture between exhaust and incoming outdoor air. No model, ventilation rate or recovery efficiency figure is published.
In their words: “For the Swegon Energy Recovery Ventilators, the system exchanges both heat and moisture energy between the outgoing exhaust air streams with the incoming outdoor air.”
Read it: Making Passive House History at Hotel Marcel Archived copy
Variable air volume boxes meter ventilation air per zone and carbon dioxide levels are monitored to reduce airflow when occupancy is low. Carbon dioxide is named as a control input and no measured concentration is published.
In their words: “Another energy-saving feature is Variable Air Volume (VAV) boxes which meter the amount of ventilation air provided to and extracted from each individual ventilation zone.”
Read it: Making Passive House History at Hotel Marcel Archived copy
The kitchen hoods are described as using a four stage filtration process including a high efficiency filter and carbon charcoal filter pack. No filter grade or capture efficiency is published.
In their words: “The hoods utilize a self-contained 4-stage filtration process to reduce emissions which includes a high-efficiency filter/carbon-charcoal filter pack.”
Read it: Making Passive House History at Hotel Marcel Archived copy
The equipment manufacturer's case study names the air source variable refrigerant flow system and the energy recovery ventilators as the heating, cooling and ventilation equipment. No airflow rate or filtration figure appears in the case study.
In their words: “A CITY MULTI® air-source Variable Refrigerant Flow (VRF) system from METUS complemented by energy recovery ventilators (ERV), was selected for the hotel's heating, cooling and ventilation requirements.”
The hotel states that it operates without fossil fuels, that the kitchen uses induction cooking and that banquet service uses induction equipment with no sterno fuel. The statements sit under sustainability and are framed as carbon measures, and no combustion appliance inventory or air reading accompanies them.
In their words: “Induction cooking to avoid any need for fossil fuels”
Water Integrity
A travel publication's account of a stay mentions touch free water stations in the lobby. No water source, treatment train, filtration specification, laboratory panel or dispenser brand is published.
In their words: “The lobby served as her picture-posing playground, where she hunted for shapes, like the triangles in the restaurant's funkily-shaped glasses, while I hunted for its earth-first touches, from touch-free water stations to a plaque certifying the zero-emission hotel as one of the nation's first LEED Platinum certified hotels, on its way to be net zero by the end of this year.”
Read it: Hotel Marcel in New Haven: America's Eco-Conscious Brutalist Hotel Archived copy
Light Rhythm
The room features list states that each room has motorised sheer and blackout window shades controlled from a touch panel and a bedside remote. Blackout provision and its control method are specified, no fabric, opacity rating or supplier is named.
In their words: “Touch panel and bedside remote control of art and vestibule lights and motorized sheer and black-out window shades”
The hotel names a Power over Ethernet direct current low voltage system as the power and control layer for all lighting and shades. It is published under renewable energy beside a lighting energy saving figure, and it names no colour temperature, tunability, dimming range or flicker performance, so it describes an electrical topology rather than anything about what the light does. Recorded at the tier that carries no specification.
In their words: “Power-over-Ethernet (POE) DC low voltage system provides power and control of all lighting and shades in the hotel”
The room features list gives the guest room glazing as triple pane windows five feet high with hardwood surrounds by Stickley. The height of the glazed opening is published, no glazing manufacturer, visible light transmittance or daylight factor is published.
In their words: “Triple-pane energy-efficient sound insulated 5 foot-high windows with Stickley hardwood window surrounds”
A travel publication reports that interior facing guest rooms receive daylight from the building's central light well. No daylight measurement or glazing area is published.
In their words: “All of the hotel's guest rooms have natural lighting thanks to the interior rooms facing the hotel's central lightwell”
Read it: New Haven's All-Electric Hotel Is Raising the Bar for Green Luxury Archived copy
EMF Harmony
Not published. We looked and found nothing on this, which is a gap in what we could read, not a finding about the building.
Materials and Textiles
The room features list states that guest room linens are organic cotton certified to Oeko-Tex. The particular Oeko-Tex standard, product class and certificate number are not published.
In their words: “Luxury linens made from Oeko-tex certified organic cotton”
The room features list names the mattress model fitted in guest rooms. No core composition, foam type, cover fabric or flame retardant treatment is published for it.
In their words: “Serta Perfect Sleeper TempActive Suite Dreams NXT mattress”
The design page names the casegoods designer and manufacturer and gives the casegoods as solid hardwood. No timber species, finish, adhesive or emission class is published.
In their words: “Hotel Marcel features solid hardwood casegoods designed by Dutch East Design and produced by The New Traditionalist.”
The design page names the maker of the guest room window surrounds and vanities. No finish, sealant or emission class is published for the joinery.
In their words: “The window surrounds and vanities were produced by the Stickley Furniture Company.”
The hotel states that it uses environmentally friendly cleaning products. No product, brand, ingredient list or certification scheme is named.
In their words: “Uses environmentally-friendly cleaning products”
The hotel states that no single use plastics are used for events, dining or guest room bathroom amenities. The statement is published under recyclable products as a waste measure and names no replacement material.
In their words: “No single use plastics are used for events, dining, and guest room bathroom amenities”
Food and Kitchen
Regional food press names Four Mile River Farm in Old Lyme, Connecticut as the beef supplier for the hotel's restaurant BLDG, and reports that each farm and purveyor is listed on the back of the menu. No share of purchasing and no certification is published.
In their words: “Gill cites the Haus Burger as one of her favorite burgers ever, giving credit to the beef that's from Four Mile River Farm in Old Lyme, a family operation that prides itself on giving its livestock the best life possible.”
Read it: Former Hell's Kitchen Finalist Megan Gill is Cooking at Hotel Marcel's BLDG in New Haven Archived copy
The restaurant's own about page publishes a list of named farms and purveyors including Four Miles River Farm, Norwich Meadows, G.R.O.W.E.R.S Inc., Arethusa Farm, La Belle Farm, Seacoast Mushrooms and LP Seafood and Specialty. No share of produce, sourcing radius or third party verification is published alongside the list.
In their words: “Tying into BLDG's mission of sustainable dining, Chef sources her menu's ingredients locally and from farmers who instill sustainability into their practice.”
The hotel states under sustainable operations that it procures locally sourced ingredients and sustainably produced offerings. No supplier, share or verification method is given in that statement.
In their words: “Procures locally sourced ingredients and sustainably produced offerings”
Biophilic and Healing Design
The room features list gives the bed as a custom walnut bed made in Connecticut with an integrated nightstand, naming the timber in direct contact with the sleeping area.
In their words: “Connecticut-made custom walnut bed with integrated nightstand and custom sconces”
The design page names the materials of the circulation spaces, including board formed concrete walls, steel railings, mahogany handrails and terrazzo treads and risers.
In their words: “The stairwells feature board-formed cast-in-place concrete walls, but steel machined railings, mahogany handrails, and trapezoidal terrazzo treads and risers.”
Trade press reports that the conversion created two light wells and turned former mechanical spaces into open air courtyards to bring daylight further into the plan. The intent is published, no dimensions or daylight measurement are given.
In their words: “distributing more daylight to the interior with the creation of two light wells and the transformation of former mechanical spaces into open-air courtyards”
Read it: Making Passive House History at Hotel Marcel Archived copy
The design page describes the building envelope as precast concrete panels framing 525 windows. The count is a building element count and no window area, room volume or ceiling height is published.
In their words: “The hotel's exterior is composed of high-strength precast concrete panels known as Mosai panels that frame the building's 525 windows.”
Sound and Sensory Ecology
The room features list describes the guest room windows as triple pane and sound insulated. No sound transmission class, glazing manufacturer or measured internal noise level is published.
In their words: “Triple-pane energy-efficient sound insulated 5 foot-high windows with Stickley hardwood window surrounds”
Trade press gives the replacement glazing specification as triple glazed, argon filled and laminated, and states the windows act as acoustic dampeners given the hotel's proximity to Interstate 95. No decibel figure or sound transmission rating is published.
In their words: “In addition to the insulation, the windows also act as acoustic dampeners which is key as the hotel sits close to I-95.”
Read it: Making Passive House History at Hotel Marcel Archived copy
A travel publication reports the writer's impression that highway noise was not audible in the guest room. No measurement was taken and none is published.
In their words: “the thick windows completely drown out the noise from the surrounding highways”
Read it: New Haven's All-Electric Hotel Is Raising the Bar for Green Luxury Archived copy
Certifications
Passive House EnerPHit, issued by Passive House Institute
Awarded: Not stated. Valid until: Not stated.
LEED, issued by US Green Building Council
Awarded: Not stated. Valid until: Not stated.
Disclosures
Compare what each stay offers, how it was checked and what still needs confirming. Assessment labels describe the review, not an overall quality rating.
A low score means a property has not published information. It does not mean the property is unsafe, unhealthy or poorly run.
A score describes proof: what a stay publishes and, on a Human Garage certified stay, what our assessor checked in person. It is not a quality rating of the property. Listings are free, and any commercial relationship is disclosed.