4724 Walnut Grove Ave building permit submitted for residential addition

Rockford Center Properties LLC is giving the back of 4724 Walnut Grove Ave. a modest makeover with an interior renovation of the primary residence, demolishing about 115 square feet of rear ground-floor space and adding a new 35-square-foot second-floor addition over the existing footprint plus a new rear roof structure. The project is listed as a two-story, 520-square-foot remodel with no new bedrooms and an estimated cost of $20,000, so it looks like a tidy, localized update rather than a major overhaul.