Homes of the San Gabriel Valley.

An Architectural Guide

I started Arroyo Casa because the homes in this valley deserve to be read, not just listed. Each one has an era, a style, and a story. My job is to know them, and to represent the buyers and sellers who see them the same way.

Arroyo Casa is a working library of San Gabriel Valley residential architecture, written to be read before it is searched. Eleven styles, twenty-three architects, twenty-one communities, and the business of buying, selling, and owning the houses they made, every page anchored to the public record. I built and remodeled homes for twenty years, finish carpentry the trade I went deepest on, and I have held a California real estate license since 1990. When a page here describes how a house goes together or what it should bring, I am writing from both sides of that sentence.

Ask Arroyo Casa, my conversational answer engine. Ask anything. The answers are grounded in this library.

What is Arroyo Casa?

Arroyo Casa is a working library of San Gabriel Valley residential architecture, written to be read before it is searched, and it is the real estate practice of Greg Anderson. The library documents the valley’s styles, architects, communities, and craftsmen from the public record. The practice represents the buyers, sellers, and owners of the houses those pages describe.

Who writes this library?

I do. I am Greg Anderson, a real estate agent and adviser working the architectural and character homes of the San Gabriel Valley. I built and remodeled homes for twenty years, finish carpentry the trade I went deepest on, and I have held a California real estate license since 1990. When a page here describes how a house goes together or what it should bring, I am writing from both sides of that sentence. The fuller account is on the About page.

What does this library document?

Eleven architectural styles, twenty-three architects, twenty-one communities, the craftsmen whose hand work is still standing inside these houses, and the business of buying, selling, and owning them. Every page is anchored to the public record, and where a claim rests on somebody else’s account rather than a primary document, the page says so.

Which communities does Arroyo Casa cover?

The twenty-one cities of the San Gabriel Valley, from Pasadena against the mountains to Pomona at the eastern end, with Altadena included. Inside those city limits sit twenty-three named architectural neighborhoods, each with its own designation record. The city roster is at Communities and Neighborhoods of the San Gabriel Valley and the neighborhood roster is at the architectural neighborhoods canon.

Can I ask this library a question directly?

Yes. Ask Arroyo Casa is my conversational answer engine. Ask anything about these houses, these neighborhoods, or this market, and the answers are grounded in the library you are reading. If you would rather look a word up than ask, the architectural real estate glossary defines the designation, construction, transaction, and data terms these pages use.

Does Greg Anderson represent buyers, sellers, or owners?

All three, and each one gets its own pillar here. Buying an Architectural Home is the buyer’s method, from reading the house to shaping the offer. Selling an Architectural Home is the listing side, where the architecture becomes the case and Sell Odds measures the price against real sold and unsold outcomes. Owning the Architectural Home is the long middle, maintenance, restoration sequencing, the Mills Act, and insurance. What to ask me before you hire anyone is in Choosing a Real Estate Agent for an Architectural or Character Home. If you already know which side of the table you are on: buyers, start a conversation; sellers, request a Sell Odds read; owners, request an in-home analysis.

In-Depth Guides.