Older Tudor and Colonial homes in Scarsdale and Larchmont present a retrofit problem that's different from a typical renovation: plaster-and-lath walls, balloon framing, and finished rooms the owner doesn't want opened up. Before picking a lighting platform or planning Wi-Fi coverage, it helps to understand how these construction methods actually constrain the work — because the construction method, not personal preference, usually decides between a wired and a wireless approach.
Wired HomeWorks QSX or Wireless RadioRA 3: What Actually Decides It
The honest answer is that this decision should be driven by what's inside the walls, not by a general preference for "wireless is easier" or "wired is more reliable." A full HomeWorks QSX install depends on running low-voltage wiring to every dimmer, keypad, and link — which in a plaster-and-lath house usually means opening finished ceilings or walls unless there's already a viable chase. RadioRA 3 was built for exactly this kind of situation: a two-way RF lighting platform where devices and processor talk to each other without a home-run wiring topology.
That said, RadioRA 3 isn't a drop-in replacement for any wiring topology. According to a hands-on review of a RadioRA 3 and Palladiom installation, the platform introduced two distinct wireless device classes with their own placement rules. Clear Connect Type A devices — Maestro RF dimmers, switches, keypads, occupancy sensors, shades — must sit within 30 feet of the processor or a repeater, and repeaters must be within 60 feet of the processor or another repeater. The newer Sunnata RF devices use Clear Connect Type X and a mesh topology instead: each must be within 75 feet of the processor, at least two Type X devices must sit within 25 feet of the processor, and every Type X device needs two other Sunnata RF devices within 25 feet of it (Lutron RadioRA 3 Lighting and Palladiom Shading System Review). In a sprawling Tudor with thick plaster partition walls, those distances matter — a closet-hidden switch bank that looks convenient on paper might fall outside the 25-foot Type X rule, and that's worth walking through room by room with whoever designs the system rather than assuming it will just work.
It's also worth asking your installer whether RadioRA 3's current keypad lineup fits the house. The same review notes that RA3 ships with only three keypad styles — two-button, three-button with raise/lower, and four-button — compared with the six-button keypads the reviewer had been running on an earlier RadioRA 2 system. If a room was designed around a six-button layout, that's a conversation to have early, not after keypads are ordered.
Where a homeowner already has an older HomeWorks Illumination or RadioRA 2 system with usable wiring, a Lutron lighting upgrade can sometimes preserve that infrastructure rather than starting over — another reason the as-built wiring survey should come before the product decision, not after.
Finding Cable Paths in a Balloon-Framed House
Even when a project leans toward wired HomeWorks QSX for areas where it's feasible — a kitchen renovation, a finished basement, an attic being converted — the question becomes where cable can travel without opening finished surfaces. In balloon-framed houses, the wall cavities often run continuously from basement to attic, which can make a bathroom stack, a closet chase, or a shared plumbing wall a usable vertical path that a platform-framed house wouldn't offer in the same way. Attic and basement runs are typically the easiest to access; interior partition walls finished in plaster and lath are typically the hardest, since fishing cable through lath without damaging it is unpredictable. These are judgment calls best made on site rather than from a floor plan — ask your contractor to confirm which stacks and chases are actually open before any wiring plan is finalized.
This is the kind of detail that benefits from the "measure twice, drill small test holes first" discipline that experienced retrofit integrators describe. In an industry feature on retrofit projects, a longtime integrator doing historic-home work put it simply: drill tiny test holes and scope out what's actually inside the wall before committing to a cable path, and expect the job to take longer than the estimate (When Retro is a Good Fit). That same caution applies to a plaster-and-lath Tudor or Colonial — the only way to know whether a given wall will take wire cleanly is to open a small test hole and look, not to assume based on the age or style of the house.
A practical approach for a Tudor or Colonial retrofit is to split the house: run wired QSX wherever a stack, chase, or open attic/basement path already exists, and use RadioRA 3 in the rooms where opening plaster isn't acceptable to the homeowner. That hybrid approach is a question to put directly to whoever designs the system, since it depends on the specific framing and plumbing layout of each house, not a rule that applies evenly across every room.
Wi-Fi Access Point Placement in an Older House
Plaster-and-lath construction is also worth raising with whoever designs your network before finalizing an access-point layout. Wireless performance in general depends heavily on the physical environment it operates in — line of sight, obstructions, and distance between a wireless device and its access point all affect reliability. Crestron's own wireless best-practices documentation for its AirMedia Connect devices makes this point directly: it recommends keeping devices within a defined range of the receiver, avoiding obstructions between device and receiver, and using a Wi-Fi analyzer to identify the least congested channel rather than accepting a generic default configuration (Wireless Best Practices). That guidance is written for AirMedia specifically, but the underlying principle is one worth asking your network designer to apply to Wi-Fi planning in a plaster-and-lath house: test actual signal conditions room by room rather than assume a layout designed for a typical drywall house will transfer directly.
In practice, that means asking a few concrete questions during the design phase: has the access-point count and placement been tested against this house's actual wall construction, not just against square footage? Is backhaul to each AP wired rather than dependent on a mesh hop through an interior wall? And has the designer walked the specific rooms where coverage has historically been weak, if the house has had Wi-Fi before? Any residential networking plan for one of these houses should treat the construction type as a question to resolve with a walkthrough and signal testing, not as something diagnosed only after installation when coverage turns out weak in a particular room.
Getting the Survey Right Before Committing to a Platform
None of these decisions — wired versus wireless lighting, which walls can carry cable, how many access points a room needs — can be made responsibly from a floor plan alone. A site walk that physically identifies where lath is metal versus wood, where a bathroom stack or closet chase actually runs floor to floor, and where attic or basement access exists is the foundation for every decision that follows. Cave Group designs around Crestron for whole-home control and Lutron for lighting and shading, and approaches a plaster-and-lath retrofit by starting with that kind of construction survey rather than defaulting to one platform for the whole house.
If you're planning a retrofit in a pre-war Tudor or Colonial, bring the as-built wiring and framing questions to your contractor or integrator before ordering keypads, processors, or access points — the right answer is usually different from one room to the next in the same house.