City staff outline major zoning overhaul intended to boost housing variety; builders warn about cost impacts

City planning staff presented a comprehensive draft zoning code update during the Housing Opportunities Commission meeting on March 12, 2025, proposing broad changes intended to increase housing variety and streamline administrative approvals. Commissioners and developers pushed back on sections they said could raise construction costs or reduce feasibility for specific housing types.

The draft replaces existing residential districts (R1, R2, R3, R4) with new categories — General Residential (GR), Neighborhood Residential (NR), Mixed Residential (MR) and Urban Residential (UR) — and generally reduces minimum lot sizes, lot widths and other dimensional standards. Staff said the changes permit small‑lot single‑family homes, duplexes, triplexes and quadplexes in more areas and remove many arbitrary density caps in favor of per‑unit lot area increments.

"We're changing all of them. There's all the names are going to be changing, all the standards are going to be changing in some way or another," the staff presenter said while summarizing the district consolidation and dimensional reductions.

What the draft would do

- Smaller minimum lot and width standards: single‑family minimums in some districts fall as low as 2,500–3,000 sq ft with lot widths down to 25–30 feet in targeted zones; two‑unit and small multi‑unit lot area requirements were reduced as well.

- Missing‑middle and form options: MR and UR districts would explicitly allow tiny homes, cottage courts, bungalow/row homes and low‑rise apartment forms. The draft also introduces a housing‑type diversity requirement for larger new developments (targets for single‑family, missing‑middle and multifamily mixes in master plans).

- Planned Unit Development (PUD) reuse: PUDs would be recharacterized to focus on holistic community benefits. As presented, a PUD project must meet one of a set of public‑benefit standards, such as guaranteed affordability, accessible design or sustainable features; affordability would be enforced for 30 years by deed restriction or similar instrument if used as the public benefit.

- New design standards: additions include residential infill standards for older neighborhoods (roof pitch, porches, front‑facing entries and three selectable quality enhancements), glazing/window requirements, and, for larger residential buildings (five or more units), a minimum masonry percentage on front facades in the current draft.

- Parking and administrative adjustments: parking ratios are mostly steady or reduced for many types; an increase was proposed for 3‑ and 4‑unit buildings to two spaces per unit unless developers use adjustments (for transit proximity, affordable units or universal design) to lower that number.

Concerns raised by developers and commissioners

Builders and commissioners said several choices could increase the cost of constructing affordable housing or make some projects difficult to deliver:

- Masonry requirement and cladding: the draft’s 30% masonry minimum for multi‑unit fronts was flagged as costly; staff said they are reviewing alternatives (mixed materials with two differing cladding types) to achieve an improved look without requiring masonry.

- Tree preservation thresholds: staff and stakeholders said proposed tree‑survey thresholds and preservation replacement ratios (reducing diameter minimums from 20" to 12") could add significant site‑development cost and complexity.

- Garage and lot‑width interactions: changes to garage placement and minimum garage widths could conflict with smaller‑lot designs commonly used for twin homes and duplexes; builders warned the combined effect of anti‑monotony requirements, garage rules and other standards could make twin home construction uneconomical and push activity out of Eau Claire.

- Anti‑monotony and model diversity: the draft sets anti‑monotony limits (for larger subdivisions, no more than a percentage of identical models) that some builders said would raise costs when developers rely on repeated models to reduce prices.

Staff responses and next steps

Planning staff said many of the currently proposed standards have been relaxed from earlier drafts, that higher‑cost elements (for example masonry percentages) are being reconsidered and that PUDs still provide negotiation paths for projects providing public benefits such as deep affordability. Staff and several commissioners encouraged review at additional Zoning Policy Advisory Commission (ZPAC) meetings; the next ZPAC meeting was noted as May 5, 2025.

Ending: The commission received the presentation and scheduled further review and outreach; several commissioners asked staff to return with cost‑impact analyses for elements such as masonry, tree preservation and balcony requirements so that the city can weigh design goals against affordability.