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Room Additions · Pasadena

Room Additions in Pasadena, CA

Primary suites, family rooms and extra bedrooms added at ground level to Pasadena homes, with Craftsman, revival or mid-century detailing and the drawings the city's reviewers expect.

  • Licensed California general contractor
  • Permits with the City of Pasadena
  • Written, line-item estimates
  • Design, engineering & construction

Free Room Additions Estimate in Pasadena

Tell us about your project. We will call you to talk it through and schedule an on-site visit.

Prefer to talk? Call (626) 824-8888

Pasadena, CA

Room Additions for Pasadena Homeowners

Room additions in Pasadena succeed when they look as though they were always there, which in this city means matching some of the most carefully detailed houses in the region. We design and build ground-floor additions that join your home's structure, roofline and systems, and one contract covers the permits and inspections too.

We plan the addition around the architecture, the lot's trees and any historic review before sketches become construction drawings, so the design you fall in love with is one the city and the house can both accept.

Local Knowledge

Adding On to a Pasadena Home

Craftsman bungalows define much of Bungalow Heaven, Historic Highlands and Garfield Heights, with low-pitched gabled roofs, exposed rafter tails, wide eaves, wood siding or shingles and deep front porches. An addition to one of these houses has to carry those details faithfully, from the rafter spacing to the window casings, or it will look out of place.

On designated properties and in landmark districts, additions are reviewed for compatibility with guidance from the Secretary of the Interior's Standards. That generally means placing the addition at the rear, keeping it lower or smaller than the original, and making it compatible without being a copy. Mid-century homes in Hastings Ranch and Linda Vista call for a different approach built on low roofs and long horizontal lines.

Older homes here often sit on raised foundations with cripple walls, and the engineer will look at seismic strengthening of the existing house near the connection. A protected tree close to the back of the house can also shape the footprint.

What's Included

Our Scope on a Pasadena Addition

  • Early check of historic designation, protected trees and remaining buildable area
  • Craftsman and revival detailing, from rafter tails to window casings, carried into the new rooms
  • Engineered foundation and framing connections suited to a raised-floor house
  • Submittals for design or historic review where the property requires it
  • Plumbing and wiring runs through the crawlspace, plus heating and cooling for the new space
  • Roofing, shingle or clapboard siding, trim, interior finishes and final inspection

For the full scope, process and options, see our main room additions page, or browse everything we build on our Pasadena service area page.

Planning Considerations

Designing a Pasadena Addition

Matching Craftsman details

Craftsman houses reward close attention to small things. Siding exposure, shingle coursing, rafter tail profiles, window proportions and trim widths all need to match or complement the original. We document the existing details before design, then source materials, including solid wood windows where appropriate, so the addition belongs to the house rather than competing with it.

Placing the addition

Rear additions are the norm in Pasadena's historic neighborhoods, but a deep back yard with a protected oak or a detached garage in the way may change the plan. Side additions can work on wider lots. We sketch the whole site, including trees, driveway and any future ADU, so the addition fits the property's long-term use.

Seismic work while the house is open

With walls and floors already open for an addition, it is efficient to bolt the existing house to its foundation and brace cripple walls where the engineer recommends it. Doing that work during the addition costs less than a separate project later, and it strengthens the whole house rather than only the new rooms you are adding.

Why Choose Us

Why Pasadena Homeowners Choose Simply Construction

Contracts Written the Way California Law Requires

California caps a home improvement down payment at $1,000 or 10 percent of the contract price, whichever is less, and after that a contractor may only bill for work completed or materials delivered. Our contracts follow that structure: a line-item scope, a payment schedule tied to finished milestones, and written change orders before any extra work begins. You always know what you are paying for and why.

One Team From Plans to Final Inspection

Design, engineering, permitting and construction sit under one contract and one project lead, so nobody points fingers between the designer, the engineer and the builder when a detail changes. You get one schedule, one point of contact and regular progress updates from the first site visit through the final inspection and sign-off on your Pasadena project.

Written, Line-Item Estimates

Before you commit, you receive a written estimate that breaks the project into its real parts: design and engineering, permit and utility fees, foundation, framing, systems, finishes and site work. Allowances are named and priced, so you can see where your selections move the budget. If the scope changes, the numbers change on paper first, never as a surprise on the final invoice.

FAQ

Room Additions in Pasadena: Common Questions

Does a room addition on a designated Pasadena property go through historic review?

If your home is individually designated or in a landmark district, exterior additions are generally reviewed for compatibility. The review looks at size, placement, roof form and materials. For other properties, standard zoning and design requirements apply. We confirm the review level at the first meeting so there are no surprises later.

Can you match my Craftsman home's original details?

Yes. We measure and document existing siding, shingles, rafter tails, windows and trim, then match or complement them in the addition. Where original materials are no longer made, we select close, durable equivalents. The goal is an addition that feels like part of the house from the street and from inside.

Can a room addition include a new primary bath?

Yes. A primary suite with its own bath is a popular use for a rear addition. On raised-foundation houses, new drain and supply lines can usually run through the crawlspace, which simplifies the tie-in compared with a slab. We plan fixture locations early so drain slopes and venting work, and we choose tile and fixtures that suit the era of the house.

Start Your Project

Planning a Room Addition in Pasadena?

Tell us about your property and goals. We will walk the site, flag anything the City of Pasadena will care about, and give you a written, line-item estimate.

Licensed California General Contractor · CSLB [CSLB LICENSE # PLACEHOLDER]