The Anwelt Heritage Apartments transform a riverside mill into New England’s first eco-friendly affordable senior housing.

In keeping with sound environmental principles, the 86 mixed-income residences are efficiently heated and cooled by geothermal exchange — using the earth’s safe, renewable energy instead of expensive fossil fuels.

The building features a landscaped courtyard with bridges, trellises, and a granite-block fountain. The gardens are planted with flowers and shrubs that create a habitat for butterflies, fireflies, and songbirds. There are also community gardens with planting beds for residents. The building features a controlled entry with electronic key card access and a buzz-in service for visitors.

Inside, the warm and inviting club room features a flat-screen TV, computers, and a well-stocked library. The building is served by a central elevator, and has a laundry room on each floor.

The Anwelt Heritage Apartments are located alongside the Nashua River, and are convenient to downtown Fitchburg's restaurants, shops, and amenities.