Many older homes were built with three or four very small bedrooms, which does not always fit how we live today. If you find yourself using one tiny room for your bed and another just to hold your clothes, combining two small bedrooms into one larger primary suite is a practical solution.

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Thinking about knocking down a wall in your home can feel intimidating. The fear of unexpected costs or hidden structural problems is completely normal. However, with clear planning and a firm grasp on the scope of the work, this is a highly manageable renovation that can significantly improve your daily routine.

Defining Your Project Scope

The key to a successful renovation is keeping your scope narrow and defined. For this project, the core scope involves removing the wall dividing the two rooms, patching the floor and ceiling where the wall used to be, rerouting any electrical outlets or switches, updating the closet layout, and applying fresh drywall and paint.

Scope expands very quickly when you decide to change the home’s footprint or plumbing. For instance, deciding to add a full en-suite bathroom to the new space will easily double or triple your budget and timeline. It is usually best to treat a bathroom addition as a separate project entirely.

Another major factor in your scope is whether the dividing wall is load-bearing. A load-bearing wall is a structural element that supports the weight of the floor or roof above it. Removing a load-bearing wall requires installing a structural beam to carry that weight, which adds complexity, time, and cost to the project. A simple partition wall—one that only divides space and supports no weight—is much easier to remove.

Budget Ranges and Variability

For combining two bedrooms without adding a bathroom, you can generally expect the project to cost between $4,000 and $15,000.

This is a wide range, and your final cost will depend primarily on the wall type and your flooring choices:

• The Lower End ($4,000 – $7,000): This assumes the wall is not load-bearing, electrical rerouting is minimal, and you are installing new carpet over the entire space rather than trying to match historic hardwood.
• The Higher End ($8,000 – $15,000): This covers the removal of a load-bearing wall, the engineering and installation of a support beam, upgrading older electrical wiring, and the meticulous work required to weave new hardwood flooring into the existing floors so the transition is seamless.

Timeline Expectations

While the demolition of a single wall only takes a day or two, the entire project requires careful staging.

• Planning and Permitting: 2 to 4 weeks before any work begins.
• Demolition and Framing: 2 to 4 days.
• Electrical Rough-in: 1 to 2 days to move wires and add new outlets.
• Drywall, Mudding, and Sanding: 4 to 5 days (largely due to drying times).
• Flooring, Trim, and Paint: 1 to 2 weeks depending on the materials.

In total, you should expect 2 to 4 weeks of active construction. During this time, your home will be dusty and noisy, and you will need to sleep in another room.

Hidden Costs and Common Surprises

When you open up a wall, you often find things you did not plan for. Here are a few common surprises in this type of renovation:

• HVAC adjustments: You may discover that a heating vent or cold air return was hidden inside the dividing wall. Rerouting ductwork into the floor or ceiling will require an HVAC technician.
• Electrical updates: Older homes sometimes hide outdated wiring, like knob-and-tube. If your contractor finds unsafe wiring, building codes will likely require you to replace it before closing the wall back up.
• Flooring gaps: Removing a wall leaves a bare strip of subfloor between the two rooms. If you have hardwood, it is often difficult to find an exact match for the wood species, plank width, and stain color.

To prepare for these surprises, it is wise to set aside an additional 15% to 20% of your total budget as a contingency fund. Tracking your budget estimates and contingency funds in your Casa app can help you stay organized and avoid financial stress as the project progresses.

Permit and Code Considerations

Because this project involves altering the floor plan and moving electrical components, you will almost certainly need a building permit from your local municipality. Your contractor will usually handle pulling the permits, but it is your responsibility as the homeowner to ensure it happens. Skipping permits can lead to fines or complications when you eventually try to sell the home.

Additionally, building codes define what legally counts as a bedroom. To maintain the room's status as a bedroom, the newly combined space will still need a closet and an egress window—a window large enough for a person to escape through in the event of an emergency.

Contractor Selection Guidance

Because this project touches framing, drywall, electrical, and flooring, you will likely want to hire a General Contractor (GC). A GC is a professional who manages the overall project, pulls the permits, and brings in specialized tradespeople (like electricians and drywallers) exactly when they are needed.

When interviewing GCs, look for professionals who have specific experience working with older homes. Ask them how they prefer to handle flooring transitions and what their process is for identifying load-bearing walls during the quoting phase.

How to Decide If This Renovation Is Worth It

The biggest consideration when combining bedrooms is the impact on your home’s resale value. In real estate, the number of bedrooms is a major pricing factor.

If you are turning a four-bedroom house into a three-bedroom house, the impact on resale value is usually minimal, and the appeal of a larger primary suite might actually attract buyers. However, if you are turning a three-bedroom house into a two-bedroom house, you may decrease the property's market value and limit your pool of future buyers.

This decision comes down to how long you plan to stay in the home. If you intend to live there for ten more years, the daily comfort of a spacious primary bedroom usually outweighs a potential dip in future resale value. If you plan to move in two years, keeping the extra bedroom intact is likely the safer financial choice.

Risk Boundaries

To keep your project moving safely, it helps to know where your boundaries are.

• Safe to try yourself: Painting the room, installing baseboards, or assembling new closet organization systems once the heavy construction is finished.
• Worth waiting or monitoring: If your budget is tight, it is worth waiting to do this project until you have a healthy contingency fund saved. Once a wall is opened, you cannot simply pause the project for months to save up more money.
• Time to stop and call a professional: Assessing whether a wall is load-bearing. Never swing a sledgehammer into a wall until a qualified contractor or structural engineer has confirmed it is safe to remove. Similarly, leave all electrical rerouting to licensed electricians.

Summary

Combining two small bedrooms into one primary suite is an excellent way to modernize an older home. By clearly defining your scope, planning for structural variables, and acknowledging the potential impact on your home's resale value, you can approach this renovation with confidence. Expect the process to take a few weeks of active construction, and rely on an experienced General Contractor to handle the heavy lifting.

When you are ready to start planning, the Casa app is here to help. You can use Casa to safely store your floor plan ideas, track your budget, and organize contractor quotes all in one place. Download Casa today to keep your home improvements clear, simple, and stress-free.