We're still verifying Fairfax County, VA's answers against the county code.

R-MHPResidential Manufactured Home Park (R-MHP)

Fairfax County, VA · Fairfax County Zoning Ordinance

R-MHP permits manufactured home parks and manufactured housing communities in Fairfax County (Section 2102.14).

Development standards in R-MHP

Front setback	Manufactured home, measured from the lot lines of the manufactured home park: At least 5 ft	2102
	Single-family detached: At least 5 ft “[1] The standards of the R-MHP District may be modified by the Board as provided by subsection 2102.14.C(5).”	2102
	Other principal uses: At least 25 ft	2102
Side setback	Manufactured home, measured from the lot lines of the manufactured home park: At least 5 ft	2102
	Single-family detached: At least 5 ft “[1] The standards of the R-MHP District may be modified by the Board as provided by subsection 2102.14.C(5).”	2102
	Other principal uses: At least 20 ft	2102
Rear setback	Manufactured home, measured from the lot lines of the manufactured home park: At least 5 ft	2102
	Single-family detached: At least 5 ft “[1] The standards of the R-MHP District may be modified by the Board as provided by subsection 2102.14.C(5).”	2102
	Other principal uses: At least 25 ft	2102
Maximum height	Manufactured home: At most 35 ft	2102
	Single-family detached: At most 35 ft “[1] The standards of the R-MHP District may be modified by the Board as provided by subsection 2102.14.C(5).”	2102
	Other principal uses: At most 50 ft	2102
Maximum FAR	Other principal uses, all uses other than residential: At most 0.5	2102
Maximum FAR	Manufactured home and single-family detached: No requirement	2102
Max density	Manufactured home: At most 10 dwellings per acre	2102
Max density	Single-family detached: At most 10 dwellings per acre “[1] The standards of the R-MHP District may be modified by the Board as provided by subsection 2102.14.C(5).”	2102
Minimum lot size	Other principal uses: At least 10,000 sq ft	2102
Minimum lot size	Manufactured home and single-family detached: No requirement	2102
Minimum lot width	Other principal uses, interior lot: At least 75 ft	2102
Minimum lot width	Other principal uses, corner lot: At least 100 ft	2102
Minimum open space	At least 20% “[2] Minimum required open space is calculated as a percentage of the gross area of the manufactured home park. Open space is as defined in Section 9102, except it may be owned by the manufactured home park owner.” “[1] The standards of the R-MHP District may be modified by the Board as provided by subsection 2102.14.C(5).” “Open space, minimum [2] 20 percent of the gross area”	2102

Each row above is the ordinance’s own rule, written out in words and cited to its section. Where a figure depends on what you build (the kind of building, a conventional or cluster subdivision, an interior or corner lot, or the building’s height), each case is its own line; where it depends on the building height, the cited table says how that height is measured.

Read from Fairfax County Zoning Ordinance, effective through 2026-07-01. We last checked with the publisher on 2026-09-14 and found nothing newer -- a check on that date, not a promise about today.

How complete is this market? Across 239,083 parcels we answer 96.1% of the 6 questions this site is built to answer, each with a source you can check. The rest are shown as “not recorded” rather than filled in — we would rather be short than wrong. A further 13,550 properties inside the county line are zoned by an incorporated town with its own ordinance, not by the county, so this county ordinance does not govern them and they are not counted above or below — which is why we publish this market as Fairfax County (excl. Vienna and Herndon). Look one of those up and we will tell you which town governs it.

Permitted uses in R-MHP

DependsMobile Homes / Manufactured Varies
Depends: by right, only if the use is a type or location that Sec. 4102.3.D(1) allows here
Table 4101.1 lists “Manufactured Home” as P in the R-MHP column. P = permitted by right; SE = special exception; SP = special permit; A = accessory only; AP = administrative permit (Table 4101.1).
DependsSTR - Short-Term Rentals Varies
Depends: administrative permit, only if the use is a type or location that Sec. 4102.7.O allows here and the use stays within the limits in Sec. 4102.7.O
Table 4101.1 lists “Short-Term Lodging” as AP in the R-MHP column. P = permitted by right; SE = special exception; SP = special permit; A = accessory only; AP = administrative permit (Table 4101.1). Fairfax defines this as a room or space intended for TRANSIENT OCCUPANCY for a charge, and expressly NOT a bed and breakfast, hotel, motel or accessory living unit (Article 9). It needs a short-term lodging permit from the Zoning Administrator, and the operator must be a permanent resident of the property (Sec. 4102.7.O).
Not AllowedCommercial / Retail
Table 4101.1 has no entry for “Retail Sales, General” in the R-MHP column. The table's own legend: a blank cell indicates the use cannot be established in that zoning district (Table 4101.1).

"Conditional" means the use generally requires a public hearing or special-exception approval — a very different timeline and risk profile from a by-right permit.

This is the zone. What about the parcel?

Zone rules are the starting point — the answer for a specific property also depends on lot size, overlays, existing improvements and site conditions. Run a free address lookup to see what applies to one property.

Look up an address

Sources

Fairfax County Zoning Ordinance — read the ordinance
Fairfax County — official zoning map / authority
Standards as recorded by Zonescore: Fairfax County Zoning Ordinance (enCodePlus, current)

Values are read from the Fairfax County Zoning Ordinance.

Other Fairfax County zones

C-1 C-2 C-3 C-4 C-5 C-6 C-7 C-8 I-2 I-3 I-4 I-5 I-6 I-I PCC PDC PDH PDH-1 PDH-12 PDH-16 PDH-2 PDH-20 PDH-3 PDH-30 PDH-4 PDH-40 PDH-5 PDH-8 PRC PRM PTC R-1 R-12 R-16 R-2 R-20 R-3 R-30 R-4 R-5 R-8 R-A R-C R-E