Kitchen Expansion vs. Reconfiguration: Bump Out or Rework the Footprint?

Kitchen expansion vs. reconfiguration: the short answer

Most kitchens that feel too small are actually arranged badly. A refrigerator that blocks the only walkway, a sink with no counter beside it, or a corner nobody can reach will all feel like a space problem. Rearranging the same square footage often fixes them. That's reconfiguration: moving the sink, range, refrigerator or cabinet runs, sometimes removing a wall, but staying inside the home's existing footprint.

Expansion means adding floor area, usually with a bump-out (a small addition off one wall) or a larger addition. It makes sense when the math says the room genuinely can't hold what you need, no matter how it's arranged. The diagram shows the difference in one room.

Test the existing footprint first

Before pricing an addition, check whether the room you have can do the job. NKBA's planning guidelines give you measurable targets to test a layout against:

• Aisles. At least 42 in. of work aisle for one cook and 48 in. for two or more (Guideline 6).
• Counter. A total of 158 in. of countertop frontage, 24 in. deep, with at least 15 in. of clearance above, to accommodate all uses (Guideline 25).
• Storage. Total shelf and drawer frontage of about 1,400 in. for a small kitchen (under 150 sq ft), 1,700 in. for a medium one and 2,000 in. for a large one over 350 sq ft (Guideline 27).
• Seating. 24 in. of width per diner and up to 44 in. behind seated diners if people walk past (Guidelines 8 and 9).

If a well-drawn layout inside your current walls meets those targets, reconfiguration is almost always the better value. If it can't, because the room is simply too narrow for an island and its aisles, or there's no wall left for storage, that's the case for expanding. A local professional who handles kitchen layout reconfiguration can draw the best in-place option so you have something real to compare against.

Source: NKBA Kitchen Planning Guidelines, Guidelines 6, 8, 9, 25 and 27.

What a bump-out involves

A bump-out is the smallest kind of addition, but it is still an addition. As general reasoning, it brings work a reconfiguration doesn't: a foundation or support for the new floor, new exterior walls and siding, a roof tie-in, and usually changes to windows, gutters and landscaping outside. Inside, the old exterior wall has to be opened, which raises the same load-bearing questions covered in the load-bearing wall guide.

HomeAdvisor's national cost guide puts the average bump-out at $27,000, with a typical range of $10,000 to $43,000. It quotes $90 to $300 per square foot overall, and $100 to $300 per square foot for kitchen bump-outs, plus $460 to $2,900 for permits. Those figures cover the bump-out, not the kitchen inside it. Treat them as national context, not a Holladay quote.

Source: HomeAdvisor, "Bump-Out Addition," updated June 20, 2026 (national figures).

Setbacks: how far you can build in Holladay

Expanding outward runs into zoning. In Holladay's R-1 zones, the city's building permit submittal worksheet sets the limits an addition must respect. For the front, lots over 1.5 acres need 40 ft; smaller lots use the average setback of homes on the block. Side setbacks must total at least 25% of the lot width, with no single side less than 10% of the lot width. Rear setbacks scale with lot size:

Two caveats matter. First, the worksheet is undated, so confirm the current rules in Holladay Code Title 13 or with the Building Division before you design around them. Second, the worksheet lists natural-hazard checks, including fault rupture under Ord. 13.75, and states that regulations for those site features overrule everything else on the worksheet. If your lot is in a hazard overlay, that review comes first.

Permits for each path

Neither path avoids the permit office. The City of Holladay requires permits for additions and renovations or remodels regardless of square footage, plus plumbing work and new electrical circuits; cabinets, trim, carpet and paint are exempt. An addition in an R-1 zone also needs the zoning worksheet with the building permit checklist. Applications go through the city's online iWorQ portal, and the city aims to finish the first plan review within 7 business days. A reconfiguration's permit is usually simpler, since there's no zoning review of the building's footprint.

Sources: City of Holladay Building Division FAQ; Holladay Building Division.

Cost context from Cost vs. Value

Zonda's Cost vs. Value report doesn't price your kitchen, but it shows how resale value compares with cost for common kitchen scopes. In the 2025 edition's Mountain region, which includes Utah:

The pattern is the useful part: the bigger the scope, the smaller the share recouped at sale. An expansion stacks addition costs on top of a major remodel, so it makes the most sense when you plan to stay and the extra space solves a daily problem. We don't quote a Cost vs. Value figure for kitchen additions because we couldn't verify one.

Decision table: reconfigure or expand?

Clearance targets: NKBA Kitchen Planning Guidelines. Setbacks: Holladay R-1 Zone Worksheet.

Expansion or reconfiguration in Holladay homes

Holladay's General Plan describes the city as having large and deep residential lots, so many homes here do have room behind them for a modest addition. But about 47.8% of Holladay homes were built in the 1950s and 1960s, often with a separate dining room right next to the kitchen. Opening that wall frequently gives you the space you were about to build, without zoning review or a new foundation. Compare the open-concept option before you commit to a bump-out; the open-concept kitchen guide covers what that involves. If the numbers still say expand, a local professional who handles kitchen expansions can check setbacks and plan the addition and the kitchen together.

Sources: City of Holladay General Plan 2016-2031; U.S. Census ACS 2020-2024, Holladay.