The Spanish Colonial Revival is Pasadena in plaster. It arrived in the 1920s, spread across the San Gabriel Valley in a single glorious decade, and left us white stucco walls, clay tile roofs, arched openings, and courtyards that treat the outdoors as another room. I have designed more than three hundred properties, and no style punishes a careless renovation faster or rewards a careful one more. Here is what I save, what I let go, and what each decision costs in 2026.
What defines a true 1920s Spanish Colonial Revival in Pasadena?
Six things, and you can check them from the sidewalk: white or cream stucco, a low-pitched clay tile roof, arched doorways and windows, wrought iron, decorative tile, and a courtyard or patio that organizes the plan. Inside, the tells are thick walls that hold the cool, plaster with softly finished corners instead of crisp modern edges, and the particular way afternoon light lands on a curved plaster reveal.
What separates a real one from a stucco box with arches added later is usually the plaster and the proportions. Original Spanish homes feel carved. Later imitations feel framed and wrapped. Once you have seen the difference in person you cannot unsee it, which is both the joy and the curse of learning this style.
Should I restore or replace the original steel casement windows?
Restore them, if they can be saved, and they usually can. This is the single most consequential decision in a Spanish restoration, and most people get talked out of the right answer by a window salesman.
| Path | Typical cost per window | What you get |
|---|---|---|
| Restore original steel | $612 to $1,584 | Many projects near $984. Keeps thin sight lines, original glass, and the house's face. |
| New steel window | Around $1,000 | Correct look if the original is beyond saving. Modern glazing options. |
| Casement replacement, other materials | $400 to $1,200 | Cheapest path. Usually thicker frames that visibly change the elevation. |
Costs are per window and vary with size, condition, and whether hardware and glazing are salvageable.
Notice that restoration and replacement land in roughly the same range. Once cost stops being the deciding factor, the decision comes down to what the window does to the house, and there the answer is not close: original steel casements have sight lines so thin that the wall reads as mostly glass, and vintage glass has a faint waviness that changes how light enters a room. No replacement reproduces either.
One more practical note: if the home is a contributing property in a landmark district or under a Mills Act contract, replacing original windows may require review and a Certificate of Appropriateness. Restoring them rarely raises the same questions. More on that in my guide to landmark districts and the Mills Act.
How much does historic plaster repair cost?
True plaster restoration commonly runs $55 to $120 per square foot of labor, with small patches around $100 to $300 for roughly four square feet and larger projects landing between $2,000 and $7,200. The temptation is always to gut a cracked wall and hang drywall instead, and I understand why: it is faster and the bid looks better.
Here is why I resist it. Hand-troweled plaster has a subtly irregular surface that catches light and reads as depth. Drywall is perfectly flat, which sounds like an improvement until you put the two surfaces in the same room and watch the new wall go dead next to the old one. Plaster cracks are also usually cosmetic rather than structural, the ordinary result of a hundred years of a house moving through hot summers and January rain.
What does the clay tile roof cost?
Clay tile installed runs $17 to $35 per square foot in 2026. But before you price a full replacement, ask a roofer who works on historic homes for a different bid: lift the original tile, replace the underlayment beneath it, and re-lay the same tile. The tile itself commonly outlives generations while the paper under it does not, and salvaged original tile carries a patina that new tile spends decades trying to earn. This single question has saved my clients five figures more than once.
What is worth saving, and what is not?
Save these, always
Original steel casements. Interior arches and plaster reveals. Wrought iron on windows, gates, and stair rails. Decorative tile, particularly on stair risers, fountains, and fireplace surrounds, which in this region may include prized local Arts and Crafts era tilework. Heavy original doors and their hardware. Barrel-vaulted or beamed ceilings. The courtyard, even a small one.
Let these go without guilt
A 1980s kitchen. Wall-to-wall carpet over what is probably oak or tile. Aluminum sliders someone installed in place of casements, which are worth replacing with something correct. Popcorn ceilings. Faux-Tuscan finishes from a 2005 remodel, which are a different style entirely wearing this one's clothes.
Think hard about these
Opening the kitchen to the living room, which many families want and which fights the room-by-room logic these houses were designed around. It can be done beautifully, but it should be done by someone who understands what the arches are doing structurally and visually.
The rule I work by: spend generously on the things that cannot be replaced, meaning windows, plaster, tile, iron, and doors, and be pragmatic about everything a future owner would happily change anyway. Character is the asset. Everything else is furniture.
What does a sensitive full restoration cost?
It depends entirely on how much survived, which is why I never quote a Spanish restoration from photographs. A house with intact windows, plaster, and tile that needs systems work and a kitchen is a fundamentally different project from one that was stripped in the 1980s and needs its character rebuilt. The systems side of that math, the wiring and plumbing and sewer and foundation, I lay out with real numbers in what it really costs to fix a 100-year-old Pasadena house.
What I can tell you is where the money goes wrong. It goes wrong when someone buys a beautiful Spanish home and renovates it into a house that could be anywhere. The plaster gets flattened, the casements get vinyl, the arches get squared, and a hundred years of character leaves in a dumpster. The house sells for less, which is the market quietly agreeing with me.
If you have one of these houses
Walk it with me before anyone starts demolition. I will tell you what is original, what is worth restoring, what your contractor is likely to underquote, and which craftspeople in Pasadena actually know how to repair plaster and steel windows rather than replace them. If you are still looking for the right one, my Spanish list is where I send the ones worth seeing.
Thalia
