A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Home Addition Contractor Across Upland
Adding space to an Upland home means navigating a city with two very different sets of rules: the spacious view lots north of Foothill Boulevard and the tight, historic parcels south of it. That split shapes everything from permit timelines to where a crew can stage materials. We’ve worked both sides of Upland, and we coordinate scheduling and permits from our Inland Empire office, so crews reach Upland neighborhoods without the delays homeowners often expect from far-flung contractors. If you’re weighing a room addition, second story, or garage conversion, call us at (831) 292-4191 for a written estimate before any work begins.
Key Takeaways
- Upland additions run roughly $90,000 to $280,000 depending on scope, with garage conversions landing between $35,000 and $80,000.
- Historic overlay lots south of Foothill often trigger discretionary review, which adds weeks to the permit timeline.
- Written pricing comes before any work starts, every time. No change orders at the door.
- We handle tight-lot staging, alley access permits, and party-wall notice requirements that generic contractors miss.
Why Lodgewick ADU Riverside Is Upland’s Preferred Home Addition Contractor Company
Lodgewick ADU Builders is the ADU company of the Kingswell family, established in 2010, and Home Addition Contractor work is a core part of what we do here. Upland homeowners call us because we put the price in writing before a single nail is driven, we show up in the window we give, and the crew leaves the site cleaner than we found it. That’s The Kingswell Way, and it’s backed by our 365-Day Done Right Promise: if the work isn’t right, we come back and make it right, free, within the guarantee period. Russ Delmar leads our team, and he’s the one who reviews every Upland project scope before it reaches your hands.
We’re not a generalist shop. We specialize in ADUs, garage conversions, and home additions. That focus means we know Upland’s municipal code, its historic district standards, and its encroachment permit process well enough to flag problems before they become change orders. Homeowners in Upland who’ve been burned by a price that changed at the door appreciate a company that hands them a written number and sticks to it.
Garage Addition Contractors in Upland
Garage Addition Contractors in Upland do more than tack a room onto the side of a house. A garage addition typically means expanding an existing attached garage, adding living space above it, or converting a detached rear-alley garage into a habitable room. In Upland, this work often intersects with historic preservation rules south of Foothill Boulevard, where detached garages on alley-served lots are everywhere. A typical garage addition in Upland runs $60,000 to $140,000, and a full garage conversion to living space lands between $35,000 and $80,000. The variance depends on foundation condition, whether the existing slab meets current code, and what the preservation guidelines require for exterior changes.
Rear-Alley Access and Staging
Many Upland garage additions happen on lots where the alley is the only access point. A 12-foot-wide alley means no room for a dumpster and a material drop at the same time. We sequence deliveries, pull encroachment permits for brief right-of-way use, and keep shared driveways clear so neighbors don’t come home to a blocked lane.
Foundation and Setback Realities
Older Upland garages, especially Craftsman-era structures north of Arrow Highway, sit on foundations that rarely meet current footing depth or seismic standards. When an addition ties into that structure, the city may require a new perimeter footing, which changes the estimate. We write that into the first quote, not the third call.
Bathroom Addition Contractor in Upland
A Bathroom Addition Contractor in Upland handles everything from a half bath tucked into a former closet to a full primary suite addition with its own wet zone. In Upland’s mid-century ranch houses and craftsman bungalows, the most common bathroom addition is a shared-wall bump-out or a master bath above an existing bedroom wing. Expect $45,000 to $95,000 for a full bathroom addition, while a compact half bath in existing square footage runs $25,000 to $40,000. Plumbing runs, venting, and waterproofing on older Upland foundations drive much of that cost.
Supply Lines and Tight Framing
Adding a bathroom to a 1950s tract house in central Upland usually means running new waste lines through a crawlspace or slab, and that’s where surprises live. We scope the existing plumbing during the estimate, not after demo starts, so the written number covers what we actually find.
Working Inside Occupied Homes
Most Upland families stay in the house during a bathroom addition. We sequence the work so water is off for hours, not days, and we contain dust with zippered barriers. Daily cleanup is part of the job, not an upsell.
Trusted Brands We Service in Upland
For Upland additions that use prefabricated components, we work hands-on with manufacturers whose systems speed up framing and reduce on-site waste. We regularly recommend Dvele for high-performance wall panels suited to the foothills’ wildfire-adjacent zones, Boxabl for compact detached additions where a factory-built shell saves weeks of framing, and Cover for precision-built panels that fit the tight alley-served lots south of Foothill. We stock common fasteners, flashings, and panel connectors locally for Upland projects, which cuts lead time when a delivery lands short. Matching the right system to the lot, not the other way around, is the whole point.
Common Home Addition Contractor Problems We See in Upland Homes
- Wrong setback assumptions. A standard 6-foot side setback doesn’t work everywhere in Upland. Historic overlay lots south of Foothill often require 4-foot or zero-lot-line conditions, and that triggers a discretionary review. Homeowners who got a cheap quote elsewhere usually find out when the city sends the plan back.
- Right-of-way violations. Leaving materials or a dumpster in the public right-of-way without an encroachment permit is a fast way to get flagged by Upland code enforcement, especially on tight alley-served blocks. We pull the permit before the drop, every time.
- Party-wall notice failures. On zero-lot-line additions, state law requires serving notice to the adjacent owner before work starts. Skip it and framing can be halted until the notice is cured. We handle the notice as part of the project kickoff, not a panic after the inspector shows up.
- Foothill-zone material requests. Even if you’re not on a hill, Upland’s wildfire-adjacent foothill designation can require fire-resistant siding, decking, and vent screens. A quote that ignores WUI requirements is a quote that will change. Ours includes them where they apply.
Pricing for Home Addition Contractor in Upland, CA
Nothing frustrates an Upland homeowner faster than a contractor who won’t give a number. So here are real ranges we’ve written into recent Upland quotes:
Room addition: $90,000 to $160,000
Second story addition: $180,000 to $280,000
Bathroom addition: $45,000 to $95,000
Garage conversion: $35,000 to $80,000
Garage addition: $60,000 to $140,000
Bump-out addition: $30,000 to $70,000
What moves the needle: foundation condition, whether the lot is in a historic overlay, alley access width, and WUI material requirements on the north side. Every Lodgewick quote is a written line-item price, not a ballpark. Call (831) 292-4191 and we’ll put a number in front of you before work starts.
We Also Serve Cities Near Upland
Our crews cover Upland and the surrounding area, including Montclair, Ontario, Fontana, and Mira Loma. Same written pricing, same 365-Day Done Right Promise, same crew standards. If you’re across the city line, the estimate process is identical to what Upland homeowners get.
Serving Upland, CA - Our Local Coverage Area
We’re based in the Upland area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Home Addition Contractor in Upland
It typically adds four to eight weeks for discretionary review and preservation-board feedback. The city reviews facade changes, setback adjustments, and any alteration visible from the public right-of-way. We submit drawings that match the overlay district’s standards up front, which avoids a resubmission cycle. Call (831) 292-4191 to get a realistic timeline for your specific block.
Yes, if the existing foundation can carry the load and the lot’s setback rules allow the height. On many south-of-Foothill lots, the garage sits on a zero-lot-line or close to it, which means a second story must match the adjacent wall plane and often requires party-wall notice. We verify feasibility during the walkthrough, not after you’ve paid for plans. Estimates are free.
Upland code generally restricts construction noise to weekdays between 7 a.m. and 6 p.m., with limited Saturday hours and quiet Sundays. Historic district blocks sometimes have stricter conditions attached to discretionary approvals. We sequence loud work, like concrete cutting and framing nailers, within those windows and keep the neighbors informed.
A 12-foot alley means material deliveries and waste removal can’t happen simultaneously, and a standard dumpster won’t fit without blocking the lane. We schedule compact deliveries, use a short wheelbase skid steer, and pull encroachment permits for brief right-of-way use. That access constraint is part of the written quote, not a surprise line item later. Call (831) 292-4191 and we’ll walk the alley with you.
Yes, if your property falls within the city’s wildfire-adjacent designation, which covers more than just hillside lots. That means Class A roofing, noncombustible siding or fire-rated panels, ember-resistant vents, and defensible-space vegetation clearance. We include WUI-compliant material pricing in the first written quote, so there’s no reprice when the plan checker flags it.
Written by Russ Delmar, Owner at Lodgewick ADU Riverside, serving Upland with written-price home additions and garage conversions under The Kingswell Guarantee.
