A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateADU Company in Spring, TX
Spring, TX sits at a crossroads: solid 1970s and 1980s ranch homes on large lots, newer master-planned communities with strict deed restrictions, and a housing market where moving up often means moving out. We build accessory dwelling units, garage conversions, and home additions here because the lots are big enough, the equity is real, and the alternative, selling and buying bigger, costs far more than building on what you already own. This page covers what makes Spring ADU work different, what it costs, and which neighborhoods we serve. For the specific work, there are three dedicated pages linked below. Call (361) 326-2313 for a free estimate on any of it.
Why Spring Homes Are Different
Spring is not one housing type. It is a patchwork. Old Town Spring has 1950s and 1960s pier-and-beam cottages on narrow city lots where side-yard setbacks leave almost no room for a detached unit. The neighborhoods around Cypresswood Drive and Louetta Road are heavy with 1980s slab-on-grade homes where a garage conversion usually makes more sense than a ground-up ADU. Then there are the master-planned communities, Gleannloch Farms, Cypress Trails, Timber Lane, with architectural review committees that will not let a prefab unit land on the driveway without a lot of paperwork. That spread changes everything: foundation type, drainage, set-back variance requests, and which ADU route actually fits the lot. Harris County permitting moves at its own pace, and many Spring HOAs require design submissions before the county even sees the plans. We build around those realities rather than pretending they do not exist.
Our Main Spring Services
Most Spring homeowners come to us with one of three situations: adding square footage to the house itself, converting an attached garage into livable space, or building a detached ADU in the backyard. Each has its own page with detailed pricing, timelines, and what the job looks like on a Harris County lot.
Home Addition Contractor in Spring
Spring’s older ranch homes were built before open floor plans became the norm, and owners frequently want a primary-suite wing or a family-room bump-out rather than a full move. On slab foundations in neighborhoods like Ponderosa and Enchanted Oaks, we deal with the existing plumbing wall, roof tie-ins, and shifting clay soil that moves with every wet-dry season. A home addition here is less about raw cost and more about not wrecking the roofline and drainage that already work. See the full Spring breakdown on Home Addition Contractor in Spring.
Garage Conversion Contractor in Spring
A garage conversion in Spring is the fastest path to an ADU because the structure, slab, and roofline already exist. What usually needs attention is the driveway: many Spring garages sit slightly below the street grade, so water management and a recessed entry become part of the project. HOA communities like Cypresswood and Spring Creek Oaks often cap garage conversions or require a carport replacement for parking, and that single condition changes the price. The full list of Spring-specific considerations is on the Garage Conversion Contractor in Spring page.
ADU Builders in Spring
Larger Spring lots, especially the half-acre and acre parcels near Boudreaux Road and parts of Klein, can hold a true detached backyard ADU. A lodge is, by definition, a small house on a larger property, and that is exactly what these projects are. The constraints are usually septic field lines (parts of Spring are not on municipal sewer), the driveway’s ability to handle two households, and tree preservation requirements tied to native pines. We match prefab systems to the lot rather than forcing a site-built unit where a panelized shell is faster and cleaner. ADU Builders in Spring has the full Spring pricing and process.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Spring
We work with established prefab and panelized systems because many Spring lots cannot handle months of open framing. We commonly specify Boxabl, Plant Prefab, and Tuff Shed shells depending on the foundation, the HOA’s finish requirements, and the budget, with turnarounds usually weeks faster than full site-build. See our brands for the complete list and how we match each system to a given property.
Pricing for ADU Company in Spring, TX
These are the ranges we quote for Spring, before any change order or surprise line item. The final number depends on the lot, the design, and the finish level, but every quote is written, and that written price is what you pay.
| Service | Typical range in Spring |
|---|---|
| Detached backyard ADU (1 bed, 1 bath, prefab shell finish) | $180,000 – $260,000 |
| Detached backyard ADU (2 bed, 1.5 bath, site-built) | $240,000 – $340,000 |
| Detached backyard ADU (2 bed, 2 bath, higher-end finishes) | $320,000 – $420,000 |
| Garage conversion (attached, 1 bed, 1 bath, existing slab) | $95,000 – $140,000 |
| Garage conversion (attached, 2 bed, 1 bath, existing slab) | $130,000 – $180,000 |
| Garage conversion with structural ceiling or header work | $150,000 – $210,000 |
| Home addition, primary suite (bedroom, bath, closet) | $130,000 – $190,000 |
| Home addition, family room bump-out (slab-on-grade) | $110,000 – $170,000 |
| Home addition, second-story over existing ground floor | $220,000 – $310,000 |
| Prefab ADU unit installation (manufacturer shell, plus site work) | $140,000 – $210,000 |
Two things push Spring prices above a bare Houston average. The first is HOA and tree-preservation work: communities like Gleannloch Farms require design-review submissions and sometimes a landscape mitigation plan, and all of that is paid for before a footing is poured. The second is the age of the existing utility runs, because older Spring homes often need a sewer-tap upgrade or a panel upgrade before an ADU or addition can be connected. You get the price in writing before any of that starts, and the number on that page is the number on the final invoice.
Neighborhoods We Serve in Spring
We build across Spring’s residential mix, from the older subdivisions west of I-45 to the newer communities east of Klein and south of the Cypress Creek corridor. Response time for the area is generally same-week for site visits and estimates.
- Old Town Spring and the 1960s neighborhoods around it
- Cypresswood and Timber Lane
- Gleannloch Farms and Cypress Trails
- Ponderosa and Enchanted Oaks
- Klein and the Boudreaux Road corridor
Service Area – Cities Near Spring
Our Spring crews also take projects in the surrounding communities. Dispatch and scheduling for this area are coordinated from our Houston office, and the same written-price and written-guarantee standards apply whether the job is in Houston, TX, Galena Park, TX, Channelview, TX, or Katy, TX. Same crew standards, same Kingswell Guarantee.
Serving Spring, TX - Our Local Coverage Area
We’re based in the Spring 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 ADU Company in Spring
We schedule estimates in Spring within the same week, typically within two to three business days of the call. A live person answers the phone at (361) 326-2313 around the clock, so the scheduling happens in one call rather than a voicemail chain. Site visits are free.
It depends on the community. Gleannloch Farms, Cypress Trails, and several others require design-review approval before construction, and some cap garage conversions or require a replacement parking pad. We handle the design package and submittal as part of the contract, and we will tell you before the first dollar is spent whether your HOA is likely to approve the project.
Yes, but the septic system dictates the route. If the existing system was sized only for the original house, a second dwelling may require a system expansion or a separate tank, and that is a line item we identify during the estimate rather than discovering mid-project. The written quote includes it.
Call (361) 326-2313 for a free, written estimate on any ADU, garage conversion, or home addition project in Spring. A live person answers, and the price you get in writing is the price you pay.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Spring Customers Say
"Converted our garage into a rental studio. The crew was respectful of the neighbors and kept the site clean. It's bringing in rent now and paid for itself faster than I expected."
- Grace Yoon"The ADU came out beautiful and the permitting, which terrified me, was handled start to finish. They kept me updated every week so I was never wondering what was happening."
- Shauna Mills"Added a suite for my dad. They walked us through every cost before a hammer swung and stuck to it. The written price is what we paid, no change orders."
- Ingrid Salazar
