Contractor in Johnston, SD.
Mark Henry Allen appears in South Dakota license records as a contractor based in Johnston, SD. The record lists a Registered Architect license (#16420) with status “Active”. It is listed as valid through 2027-05-31.
Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.
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Mark Henry Allen is a contractor based in Johnston, South Dakota.
Yes. Mark Henry Allen holds South Dakota licensing authority license #16420 (status: Active). Verify the current status on South Dakota licensing authority before hiring.
Mark Henry Allen is based in Johnston, SD 50131.
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Not yet. This listing was created from public South Dakota license records but hasn't been claimed by the owner. The license info above is from official records, but the business hasn't confirmed its services, hours, or current availability with us yet.
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