Can You Get Floor Plans of an Older Home?

Yes. Missing original plans do not prevent an older home from being measured and documented. The more important task is deciding what needs to be recorded and how the drawings should represent the building's unusual features.

An older home may have rooms with angled connections, different ceiling heights, or additions from separate phases. Instead of starting with the assumption that everything is square and level, give the measurement team a brief that allows those questions to be checked.

Identify the features your project depends on

Walk through the proposed work with your designer before booking. Point out changes in floor level, sloping ceilings, thick-looking walls, enclosed porches, and connections between additions. These observations are a starting list of questions, not a diagnosis of why the building looks that way.

A remodel involving an attic room, for example, may need more than a top-down floor plan. Ask whether the design team also needs ceiling geometry or a section through a particular area. Those deliverables should be agreed on rather than assumed.

Do not smooth away important differences

Discuss how much detail the final drawings or model should retain. There is a difference between simplifying small surface irregularities for a readable plan and changing a feature that materially affects the design.

Autodesk's guidance for modeling existing buildings recognizes that floors and ceilings can vary between rooms; levels and offsets can be used to represent those differences. The modeling approach should suit the information actually captured. 1

The practical question is not whether the model looks perfectly tidy. It is whether it communicates the conditions your project needs to understand.

Keep inaccessible areas visible as limitations

Access matters in any building. Tell the team about locked rooms, fragile finishes, unsafe stairs, difficult attic access, and any areas that must not be entered. Do not remove materials or attempt unsafe access simply to make a scan possible.

For historic documentation, the National Park Service emphasizes reliable measurements and clear identification of inaccessible portions. A standard residential documentation package should not be assumed to meet a formal historic-recording standard unless that is separately specified. 2

Preserve information without making a structural claim

Measured geometry can describe an observed condition, but it does not establish the cause of a sloping floor or determine whether an alteration is safe. Refer those questions to the appropriate qualified professional.

Keep earlier drawings, photographs, and renovation records alongside the new documentation. Together, they can help the project team distinguish known information from questions that still require investigation.

Planning changes to an older home in the Treasure Valley? Tell Spot On Measure about the layout and the work you are considering. We can discuss the documentation scope before you decide which files to order.

References

1. Autodesk - Managing Model Levels Based on a Point Cloud

2. National Park Service - Standards and Guidelines for Documentation