Certificate of Appropriateness in Norman, OK - Miller Historic District Process
A Certificate of Appropriateness (COA) issued by Norman's Historic District Commission (HDC) is required BEFORE a building permit can be issued for exterior work within Miller Historic District or the Downtown Historic Commercial Area. The HDC enforces the Secretary of the Interior's Standards for Rehabilitation.
Three review tiers exist: Administrative COA (minor work, staff approval, 5-10 business days), Standard COA (HDC monthly meeting, alterations changing character or new construction, $100 fee), and Demolition Review (90-day delay, possible 180-day extension for contributing structures).
Who needs this permit
Is this permit required for your Norman project?
Any property owner or contractor performing exterior work, demolition, or new construction on a property in Miller Historic District or the Downtown Historic Commercial Area in Norman.
Norman cost range
Expected permit fees in Norman
Administrative COA: $0. Standard COA: $100. New construction or demolition COA: $200.
Fees reference the current Norman Development Services fee schedule. Contact (405) 366-5382 to confirm for your specific project valuation.
Required documents
What Norman Development Services needs from you
- Completed HDC application form
- Photographs of existing conditions (all affected elevations)
- Drawings/sketches showing proposed changes
- Material specifications (manufacturer cut sheets where applicable)
Process & timeline
Step-by-step process in Norman
- 1
Submit application to Norman Planning (HDC staff).
- 2
Administrative COA: Planning staff review in 5-10 business days for minor work.
- 3
Standard COA: HDC monthly meeting (typically third Tuesday); applicant should present.
- 4
Demolition Review: 90-day delay period, extendable to 180 days; alternatives explored.
- 5
COA approval is required BEFORE building permit can be issued. COA is valid for 12 months.
Common reasons for rejection
Why Norman rejects historic coa permit applications
- Vinyl windows proposed to replace original wood windows on a contributing structure
- Vinyl or aluminum siding installed over historic wood siding
- Front-yard parking pad without historic precedent
- Removal of porch, columns, or other character-defining feature
- Painting previously unpainted masonry
Skip the rejection cycle on your Norman historic coa permit
Permitly analyzes your project against Norman Development Services requirements and generates a pre-filled application packet in under 3 minutes. First analysis is free.
Norman Development Services: (405) 366-5382 · 201 W Gray St, Norman, OK 73069
Historic COA permit FAQs — Norman, OK
What work in Miller Historic District requires a COA?
Any exterior alteration visible from a public street or alley to a contributing structure, plus any demolition (full or partial), new construction, fence/wall changes visible from public ROW, and roof replacements involving change of material or pitch. Interior-only work, like-for-like material replacement, and painting (no color change) generally do NOT require COA.
How long does a COA take?
Administrative COA: 5-10 business days. Standard COA: 30-45 days (depends on HDC monthly calendar). Demolition Review: 90-180 days.
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