Home additions and dormers in Ladue, MO
Ladue lots are large. The minimum residential parcel under Ladue zoning is bigger than most St. Louis County homeowners’ entire backyard, and many properties are several times that. Adding to a Ladue home isn’t usually about going up because you can’t go out. It’s about adding the right structure in the right place on a property that has the room.
Why Ladue homeowners trust Aleto with additions
Most Ladue homes were built between the 1940s and the 1970s, with another wave through the 1980s and 1990s. The architecture is traditional Colonial, ranch, mid-century, with a strong contemporary subset. The lots are large, the street setbacks are deep, and the homes were typically built with generous proportions for their era. What ages, often dramatically, is the relationship between the home and the way the household actually lives now. Ladue’s 1950s ranches and 1970s colonials weren’t designed for primary suites the size of today’s standard. They weren’t designed with the indoor-outdoor flow that current entertaining requires. They weren’t designed with the home offices, fitness rooms, and dedicated guest accommodations that affluent households now expect.
A Ladue addition typically takes one of several forms. A primary suite wing is added off the existing primary bedroom side of the home, often replacing or absorbing an underused study or formal dining area. A sunroom or four-season room extends the home into the rear yard with significant glazing. A pool house, cabana, or detached guest structure adds entertaining and accommodation space without enlarging the main home. A first-floor expansion absorbs adjacent rooms or extends laterally for a larger kitchen, family room, or great room. A second-story addition is less common in Ladue than in newer suburbs, because the existing floor plans are usually generous enough that horizontal expansion makes more sense.
Aleto Construction Group has been completing additions in Ladue for decades, including primary suite wings, sunroom additions, pool house and cabana projects, and full estate-scale renovation programs. As a design-build firm rooted in St. Louis since 1955, we bring the project management capacity that estate-scale work requires, with the design discretion and on-site standards Ladue clients expect.
What an addition in Ladue, MO can include
Every project is scoped to the home and the homeowner. Here are the addition types we complete most often in Ladue:
Primary suite wing additions
Adding a full primary wing (bedroom, walk-in closets, primary bathroom, sometimes a sitting room or private exterior access) off the existing primary side of the home
Sunroom and four-season room additions
Three- and four-season rooms with significant glazing, custom millwork, integrated heating and cooling, and direct connection to the existing home’s living spaces
Pool houses and cabanas
Detached or semi-attached pool houses with full kitchens, baths, changing rooms, and outdoor entertaining space, designed as architectural complements to the main home
Detached guest houses and accessory dwellings
Standalone guest houses, in-law suites, and accessory dwellings on properties large enough to support them, designed to read as carriage houses or pavilions appropriate to the main home
Lateral first-floor expansions
Ground-floor additions extending the home laterally to accommodate larger kitchens, family rooms, great rooms, or expanded dining and entertaining space
Outdoor living additions
Covered porches, screened porches, outdoor kitchens, fireplace pavilions, and integrated landscape architecture connecting the home to the property
Garage and carriage house additions
Expanded attached garages, detached garages with finished bonus space, and carriage houses on properties that historically had them
Estate-scale coordinated programs
Multi-phase addition programs coordinated with whole-home renovation, exterior work, and landscape projects across the property
What additions look like in Ladue, MO
Ladue additions are shaped by the scale of the homes, the size of the lots, and the design level the architecture demands. Here are the scenarios we see most often.
Adding the primary suite wing the home should have had
The most common Ladue addition project is a primary suite wing added off the existing primary bedroom side of the home. The original primary bedroom and bath were appropriate for when the home was built; today, they’re undersized. Rather than fight the existing footprint, the addition extends the home laterally with a new primary bedroom, his-and-hers walk-in closets (or a single oversized walk-in), a spa-level primary bath, and often a sitting room or private exterior access. The original primary bedroom can be repurposed as a sitting room, a home office, or absorbed into the new closet space. The exterior is detailed to match the home’s existing architectural language, with siding, roofline, window proportions, and trim profiles that read as part of the original home.
Building the pool house
Many Ladue properties have pools, and many of those pools have either no pool house or a small, inadequate cabana from the 1970s. A modern pool house addition typically includes a full bath with changing space, a kitchen capable of supporting outdoor entertaining (often more functional than the home’s actual kitchen for warm-weather use), covered outdoor seating, sometimes a media room or game room, and storage for pool and yard equipment. The detailing matters as much as the program. The pool house should read as an architectural complement to the main home, designed in the same vocabulary at a related scale rather than as a separate building dropped onto the property.
Adding the sunroom that connects the home to the property
Ladue’s deep rear yards, mature trees, and landscape investment create properties that the original homes often didn’t take advantage of. A sunroom or four-season room addition off the rear of the home (typically extending from the family room, kitchen, or formal dining room) creates the indoor-outdoor connection the home was missing. The work involves significant glazing, careful structural integration with the existing home, integrated heating and cooling for year-round use, and exterior detailing that ties the addition to the main house. Done well, a sunroom addition becomes the most-used room in the home.
Coordinating an addition with a whole-home renovation
Many Ladue addition projects don’t happen in isolation. They’re part of a larger program that includes whole-home renovation, exterior updates, kitchen and bath renovations across the home, and often landscape architecture and pool work as well. Designing the addition as part of a coordinated program is meaningfully different from designing it as a standalone project. The addition’s exterior detailing matches the home’s updated exterior. The interior finishes match the home’s renovated interiors. The mechanical systems are integrated rather than added on. The result is a fully realized home rather than a series of unrelated updates accumulated across years.
What our clients are saying…
“I used Aleto for an attic addition, and they were great! They were always so kind and helpful. The planning process takes a bit of time, but it is definitely worth it because it allows for a very detailed budget and makes the project go faster when they are actually in the construction phase. They are always very communicative and on schedule for the most part. I recently had a piece of siding come loose from the addition. I texted Mike and he had it taken care of right away. They stand behind their work, and I will only use Aleto for any future projects.”
Aja Martin
Featured home addition project
Lindenwood Park Upgrade
A home in the Lindenwood Park neighborhood just got an elevated upgrade—literally. This second-story addition features a spacious owner’s retreat with a light-filled bedroom, a walk-in closet, and a beautifully tiled full bathroom.
Custom details include 5×5 ceramic wall tile, a 1″ hex mosaic floor with 2′ square rug insets, and warm wood-look LVP throughout. A custom staircase ties it all together with elegance and craftsmanship.
Frequently asked questions
Does Ladue zoning allow our planned addition?
Ladue has specific zoning requirements covering setbacks, lot coverage limits, height restrictions, and accessory structure rules that affect what can be built and where. Most homes are within the established zoning envelope, but additions need to be designed against the specific requirements for the property. Detached guest structures and pool houses have their own rules. We assess zoning compliance during design before any commitment is made and handle the full permit and approval process through the City of Ladue.
Can we live in the home during a Ladue addition?
In nearly all cases, yes. Lateral additions, sunrooms, and detached structures are typically built without disrupting the existing home until the connection phase, which is usually brief. Primary suite wing additions are typically built from the outside through framing, roofing, and exterior weatherproofing before the existing home is opened to connect the new wing. The connection phase is the most disruptive period and typically lasts 2 to 4 weeks. Estate homes have enough alternate living space that the household can continue normal life during construction.
How do you make sure the addition looks like part of the original home?
By treating it as a design problem first and a construction problem second. The addition’s exterior detailing (siding, brick or stone, trim profiles, window proportions, roof pitch and roof material, gutter and downspout language, exterior light fixtures) all need to relate to the original home. Where the original home has been altered or modernized over the years, the addition’s relationship to that history needs to be clear. We do this design work upfront, including elevation studies, material samples, and full mockups where useful, before construction begins. The result is an addition that reads as if it had always been part of the home.
More home renovation services in Ladue, MO
Looking at a different scope? Explore our other services available in Ladue, MO:
Kitchen renovation
We rethink how your kitchen flows, functions, and feels from layout to custom storage and premium appliances.
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Whole-home renovation
Full reimagining of your home from top to bottom, designed and built as one cohesive project.
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Bathroom renovation
Convert dated bathrooms into spa-like retreats with custom tile, modern fixtures, and intelligent layouts.
Learn more →
Ready to add space to your Ladue home?
A home addition starts with a conversation about how your home isn’t working today and what it could become. Tell us what you’re thinking, and we’ll take it from there.