
Interiors · Westfield, New Jersey
Shadowlawn West: A Classic Modern Renovation and Addition in Westfield, NJ
Arched openings, custom millwork and a two-story window nook, worked through the whole house and out into the garden.
A 1930s stone Colonial in Westfield, New Jersey, renovated and extended rather than replaced. The owners knew what they had — the charm and the character were never in question — and the brief was to bring the house in line with how they live now without losing its provenance.
The existing house had good bones and an elegant exterior, so the stone façade was preserved and the symmetry of the front kept intact while every window was enlarged to pull in more light. Simple cream plaster on the additions lets the new work read as streamlined against century-old stone instead of imitating it.
Inside, the preexisting rooms were large but did not connect or flow for modern living. The long narrow living room was split into a sitting area and a bar to make one connected entertaining space, and a wall was added behind the refrigerator to carve out the butler’s pantry. Arched openings tie it together: arches belonged to the public rooms of original Colonials, and here they bridge that history to the owners’ sleeker, more urban taste.
The original staircase sat toward the back of the house. It was relocated to the center to echo the symmetry of the exterior, and the new stair is as sculptural as it is functional. A two-story window nook pulls daylight into the middle of the plan.
Project Snapshot
- Location
- Westfield, New Jersey
- Project Type
- Whole-home renovation and addition
- The House
- 1930s stone Colonial, renovated and extended
- Interior Design / Furnishings
- Ellie Mroz Design
- Construction
- Michael Robert Construction
- Signature Elements
- Arched doorways and openings, custom millwork, two-story window breakfast nook, cedar-planked family-room ceiling
- Rooms
- Kitchen and breakfast nook, dining room, family room, home bar, butler's pantry, home office, laundry, mudroom, primary suite, guest and family baths, side porch
- Project Structure
- Whole-home interiors and furnishings, inside and out
- Press
- Design NJ, “History Revisited”
A Kitchen Built Around Light
The kitchen is the argument for the whole renovation. A two-story window tower rises over the eat-in area, turning what is usually the darkest corner of a plan into the brightest room in the house, and making the breakfast nook somewhere people actually sit rather than pass through.
Glazing on this scale only works if the cabinetry beneath it stays disciplined. The custom kitchen is deliberately quiet — long uninterrupted runs, restrained hardware — so the windows and the arched openings carry the drama.
The backsplash and countertops are honed white quartzite, kept quiet so the millwork and the light do the talking.
The Range Wall: Marble Slab and a Custom Hood
The range wall is where the kitchen's detailing concentrates: island, hood and range treated as one composition, with the surrounding arch framing the cooking zone instead of leaving it as a gap in a run of cabinets.
Kitchen plans for this project were drawn as part of the design development rather than left to the cabinet supplier, which is what allows the arch, the hood and the island to line up as deliberately as they do.
Arches, Millwork and the Route Through the House
From the foyer through the dining room and up the stair, the same vocabulary repeats. Arched openings frame each transition, and a wood-and-metal stair adds the one overtly modern gesture in an otherwise classic sequence.
Circulation is where renovations and additions usually give themselves away. Here the route through the house reads as continuous, which is the point: an addition succeeds when you cannot tell from the inside where the original house stopped.
The Family Room and Home Bar
The family room takes a cedar-planked ceiling — warmth overhead in the room the household uses most, and a counterpoint to the paler public rooms. Nearby, a home bar with exposed metal architecture handles entertaining, backed by a butler's pantry that keeps the preparation out of sight.
Splitting entertaining across a bar and a butler's pantry is what stops the kitchen becoming the default gathering point during a party. One space is for guests; the other is for the work.
Home Office, Laundry and Butler’s Pantry
A small workspace fits snugly at one end of the butler’s pantry, doubling it as a compact office — the kind of adjacency that only emerges when the whole floor plan is designed at once rather than room by room. The dedicated home office carries custom built-ins, and the laundry room is given the same standard of cabinetry as the public rooms.
These are the rooms that decide whether a large house is pleasant to run. Designing them properly costs a fraction of the kitchen and is felt every day.
Mudroom and Laundry
The mudroom runs dark cabinetry against natural wood and brick walls, with a deep sink positioned for the jobs a mudroom actually absorbs — muddy boots, dogs, sports kit, deliveries. A wallpapered laundry room proves the point that utility rooms can carry a decorative idea without losing durability.
The Primary Suite
The primary bedroom repeats the family room's planked ceiling, quietly linking the two rooms the family spends most time in. The bathroom is modern and restrained, and a natural-wood custom closet completes the suite as a set of connected spaces rather than three separate rooms.
The bedroom and bathroom were each developed with their own drawings during design development, which is why the suite resolves as one idea.
Guest and Family Baths
The secondary bathrooms hold the same standard as the primary suite. In a house this size the guest bath is often the room visitors judge everything else by, which makes it a poor place to economize.
Windows, the Stair Landing and the Side Porch
Glazing is the through-line of the project. Full-height windows open the back of the house to the garden, a side porch gives the plan a sheltered outdoor room, and the stairwell landing is treated as a window wall rather than a blank one — so daylight reaches the middle of the house from above as well as through it.
The relationship with the outdoors carries straight through: the same thinking that shaped the interiors extends into the exterior furnishings, so the porch and terrace read as rooms of the house rather than as an afterthought bolted on outside.
More From This Project
Considering a renovation and addition in Westfield or a neighboring town? The Ellie Mroz Design team plans the new space and the existing house together — through the drawings, the millwork and the furnishings — so the finished home reads as one house rather than two.
start a projectBuilt With
Michael Robert Construction
Design and construction on this project were coordinated together — architecture, site work and finish carpentry alongside the selections and furnishings.
See the construction side at Michael Robert ConstructionQuestions
Questions we get a lot
What is involved in a whole-home renovation with an addition?
The addition and the existing house have to be planned as one floor plan. New square footage is an opportunity to fix circulation, enlarge the kitchen and family spaces, add a mudroom or a primary suite, and resolve awkward transitions — not simply to bolt more rooms onto the end of the house.
Do you produce drawings and plans, or only choose furniture?
Both. This project's records include kitchen plans, primary bath and vanity drawings, primary bedroom drawings, lighting documentation and CAD files alongside furniture mood boards and the final selections.
Can utility rooms be designed to the same standard as the main rooms?
Yes, and it is usually worth it. This house gives the mudroom, laundry, butler's pantry and home office the same cabinetry and material attention as the kitchen and living spaces, because those are the rooms that decide how the house runs day to day.
Can a project continue into the outdoor spaces?
Yes. The exterior furnishings were designed as part of the same project as the interiors, with their own design presentation and a care guide for the outdoor pieces, so the porch and terrace belong to the same scheme as the rooms they open off.
What happens at the end of a project?
Alongside installation and styling, this project concluded with a care guide covering the finishes and furnishings, so the household knows how to look after what was specified.
How do you modernize a 1930s Colonial without losing its character?
By keeping what the house already does well and changing only what stops it working. Here the stone façade and the front symmetry were preserved and the windows enlarged for light; inside, rooms that did not connect were replanned, and arched openings — a feature of the public rooms in original Colonials — carry the period detail into a much more modern interior.
