Tiny home rules in Penn Hills, PA — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
Penn Hills has no dedicated tiny home ordinance. A site-built tiny house on a permanent foundation must meet single-family dwelling standards under the Codified Ordinances Ch. 1268 (Residential Districts) and the PA Uniform Construction Code, which adopts the IRC. Pennsylvania has not adopted IRC Appendix Q statewide, so habitable rooms generally must meet the IRC's 70 sq ft and 7 ft ceiling minimums. Tiny houses on wheels are treated as RVs and not allowed as permanent dwellings. Confirm with Code Enforcement at 412-342-1192.
Penn Hills' Codified Ordinances (eCode360 PE4297) do not include a dedicated tiny home chapter. A tiny house built on a permanent foundation is regulated as a single-family dwelling and must satisfy the lot area, frontage, setbacks, and bulk regulations of the underlying residential district under Chapter 1268, plus the Pennsylvania Uniform Construction Code (34 Pa. Code Ch. 401-405). The UCC adopts the International Residential Code; under the IRC, habitable rooms generally need at least 70 square feet of floor area, a minimum horizontal dimension of 7 feet, and a 7-foot ceiling height. Pennsylvania has not formally adopted IRC Appendix Q (Tiny Houses) on a statewide basis, so the relaxed loft and ceiling provisions are only available where a local jurisdiction has separately adopted Appendix Q. A tiny house on wheels (THOW) titled as a recreational vehicle through PennDOT is not classified as a permanent dwelling and cannot be used for permanent occupancy on a residential lot under the zoning code. Accessory dwelling units are typically a conditional use under Chapter 1280. Confirm whether Penn Hills has adopted IRC Appendix Q, the current minimum dwelling floor area in your zoning district, and ADU eligibility with the Code Enforcement Department at 12245 Frankstown Road, 412-342-1192.
Occupying a tiny house on wheels as a permanent dwelling, building a site-built tiny home without a UCC permit, or placing one on a lot that does not meet Chapter 1268 lot area and setback requirements can trigger zoning enforcement, stop-work orders, and removal orders under the Penn Hills Codified Ordinances.
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