Design Lewiston Guidelines

SOLUTIONS

CommunityScale team members led the Design Lewiston Guidelines, a framework to shape a Lewiston, Maine that is attractive, functional, and community-oriented. Serving as a how-to manual for projects in site plan review, the guidelines align development with the city’s Comprehensive Plan while encouraging harmony between new and old rather than rigid conformity. Stemming from the 2017 Legacy Lewiston plan and the 2014 Riverfront Island Master Plan, they updated site and design standards, added a Design District Overlay in the Historic Downtown Core, and clarified standards for architecture, parking, and accessibility. Zoning amendments also turned non-conforming Tree Street lots into buildable sites for compatible infill.

Axonometric zoning diagram illustrating how space and bulk standards define a 3D buildable volume on a corner lot, with the buildable area shaded on the ground plane, front and side setbacks labeled, and an existing mid-block building and a new building shown for comparison.
Client City of Lewiston, Maine
Partner Street Plans
Timeline September 2019 – June 2020
Services Zoning, Consulting
Deliverable Design guidelines

Members of CommunityScale’s team led the Design Lewiston Guidelines project with Street Plans. These design guidelines create a framework aimed at shaping a Lewiston that is attractive, functional, and community-oriented. The guidelines are designed to support developers, city officials, and residents in creating spaces that harmonize with Lewiston’s architectural heritage while advancing walkability, safety, and urban aesthetics.

Axonometric zoning diagram illustrating how space and bulk standards define a 3D buildable volume on a corner lot, with the buildable area shaded on the ground plane, front and side setbacks labeled, and an existing mid-block building and a new building shown for comparison.
Mill District space and bulk standards diagram

These guidelines serve as a “how-to” manual for projects that require site plan review in Lewiston, focusing on ensuring development aligns with the city’s Comprehensive Plan. Rather than enforcing conformity, they encourage harmony between new and old developments, aiming to foster dynamic, interconnected neighborhoods. Each project is reviewed with attention to context, so it complements surrounding properties while reflecting Lewiston’s distinctive character.

Stemming from the 2017 Legacy Lewiston Comprehensive Plan and the 2014 Riverfront Island Master Plan, these new guidelines aim to enhance both architectural and site design with respect for Lewiston’s historical character while promoting high-quality growth for the community.

Notable changes include revised Site Plan and Design Guidelines for easier navigation by developers and property owners, city-wide recommendations for enhancing site layout, buffering, landscaping, and lighting, and a new Design District Overlay in the Historic Downtown Core. Standards for architectural design, parking layout, and mid-block accessibility have been updated, along with clearer graphics for spatial standards in the Design District.

Axonometric zoning diagram showing how space and bulk standards define a 3D buildable volume on a corner lot, with the development area shaded on the ground plane, lettered setback and height dimensions, and an existing mid-block building and a new building alongside, noting that porches and stairs may encroach into the front yard.
Downtown Residential District space and bulk standards diagram

The project also brings zoning amendments to support compatible infill in the Tree Street Neighborhood, transforming non-conforming lots into buildable sites and encouraging small businesses. A revamped Development Review Application further streamlines the process with mapping and zoning resources, linking the community to Design Lewiston’s updated guidelines and amendments.

Flowchart of Lewiston's development review process, contrasting minor projects under 5,000 square feet or 3 to 12 dwelling units with major projects above those thresholds, then stepping through eight approval stages from pre-application meeting and staff review through historic preservation review, approval authority review, board of appeals, building permitting, construction and certificate of occupancy, with the parallel design phases and documentation listed alongside.
Development review process diagram

Design Lewiston’s regulations are crafted to be straightforward, supporting cost-effective projects for developers and bringing predictability to property owners. Community members, from residents to business owners, are encouraged to explore these changes that mark a new era for Lewiston’s urban development.

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