NR Building Solutions

Structural & site

Home set and install — infill for manufactured housing communities

Infill is filling a vacant lot with an occupied home, and it is one job with one accountable party rather than five vendors and a gap in the middle.

How it is priced
Per lot, by home size and site condition
Timeline
Set in your written estimate, after the walk-through
Who performs it
NRBS crews, self-performed

Infill is the word, and the whole sequence is the job

Infill is what operators call filling a vacant lot with a home that reaches occupancy. Not delivering a home. Not setting a home. Getting a lot from empty to earning.

We use the operator's word deliberately, because the industry's own vocabulary — "home set", "installation" — describes a day of work in the middle of a process that takes months, and that mismatch is exactly where infill programmes fail.

The full sequence:

  1. Lot preparation

    Grade, pad, drainage and access. Everything downstream is built on this, and a lot that drains toward the home creates problems no later step can fix.

  2. Transport and delivery

    Getting the home to the lot and positioned. Access constraints inside an occupied community are frequently the binding limit, not the road.

  3. Set, blocking and anchoring

    Piers, blocking and tie-downs specified to the HUD Wind Zone at that location. Licensed work, and the licence is state-specific.

  4. Utility connection

    Water, sewer, electrical and gas. Almost always the longest lead item and almost never the one being tracked.

  5. Skirting and exterior

    Perimeter closed, ventilated and accessible; steps and landings built to the finished grade.

  6. Make-ready

    Interior brought to rent-ready condition, so the lot produces income rather than sitting complete-but-empty.

Why the industry runs slow, and where the time actually goes

Ask an operator how long infill takes and the answer is usually months per lot. Ask where the time went and almost nobody can produce a breakdown.

It is not construction. The physical work in that sequence is a matter of days.

It is the handoffs. In the standard model the transporter, the setter, the utility contractor, the skirting crew and the make-ready crew are five different vendors with five different schedules and no single party accountable for the date the lot starts earning. Each one is individually reasonable. The gaps between them are where the months live.

Our argument is not that we work faster. It is that there are no gaps, because the whole sequence is one scope with one schedule and one party answering for it. That is the entire difference, and it is worth more than any crew-level efficiency.

Licensing is a real constraint, and we will not pretend otherwise

Installer licensing for manufactured homes is administered by HUD in some states and by the state itself in others, and a licence is not portable between states.

[U.S. Government Publishing Office, current eCFR]

This has a consequence worth stating plainly, because it is unusual for a contractor to volunteer it: the set of states where a national contractor can legally perform set and installation work is narrower than the set of states where it can perform renovation work. Interior and exterior renovation does not engage installer licensing. Setting a home does.

That is why our where we work pages state the licensing agency and NRBS's status for each state, rather than implying that national coverage means the same scope everywhere.

Anchoring is specified to the zone

Blocking and anchoring are specified to the HUD Wind Zone at the home's actual location, per 24 CFR § 3280.305. [U.S. Government Publishing Office, current eCFR] Wind Zone II is a 100 mph design wind speed and Wind Zone III is 110 mph, and the anchoring that satisfies one does not satisfy the other.

See leveling, piers and tie-downs for the ongoing side of that work on homes already in place.

Doing infill as a programme

A single lot is a project. Ten lots is a programme, and it is priced and scheduled completely differently — crews stay mobilized, permitting runs in parallel rather than in series, and utility scheduling can be batched. See the infill programme.

Also in structural & site

Specification

What we install, and to what standard.

Full specification
Scope boundary
Delivery through occupancy-ready, including make-ready
Anchoring
Specified to the HUD Wind Zone at the home's location
Installer licensing
HUD administers installer licensing in some states; others run their own
The real schedule driver
Permits and utility connection appointments, not crew availability

Not in the scope

  • Anything not written in the scope. Extra work found on site is raised as a written change order before it is done.

Ready when you are

Step one is your scope, as it already exists.

Request a bid

Pricing a whole community? Request a park-wide quote.

Common questions

Infill is filling a vacant lot in an existing community with a home that gets to occupancy. It is the word operators use, and it covers the whole sequence — transport, lot prep, set, blocking and anchoring, utility connection, skirting and make-ready — rather than only the day the home arrives.

Because it is usually five separate vendors and nobody owns the date. The transporter, the setter, the utility contractor, the skirting crew and the make-ready crew each schedule independently, and the gaps between them are where the months go. The construction work itself is a small fraction of the elapsed time.

It depends on the state. HUD administers installer licensing in some states and others run their own programme, and a licence is not portable across state lines. That is a real constraint on where any national contractor can perform set work, and any contractor who tells you otherwise has not read the rule.

The HUD Wind Zone at the home's location. A home in Wind Zone III is anchored to a different specification than the same home in Wind Zone I, and anchoring specified from habit rather than from the zone is both a compliance problem and a real one.

W-9, written safety programme and certificates of insurance (GL and workers’ comp): being prepared. What is published so far is on vendor credentials.