Service · Home Additions

More home,
without moving
an inch.

When you love your neighborhood but need more space, a well-designed addition is the answer. We build additions that look like they were always there — structurally sound, fully permitted, architecturally matched.

Home addition by Lovering Remodeling
60+
Additions Built
14 wks
Avg. Timeline
$95k
Avg. Investment
80%
Avg. Cost Recouped
Home addition under construction and completed
60+ Additions completed
What We Do

The complexity is ours
to carry, not yours

Home additions are the most complex residential construction project you can undertake — involving structural engineering, zoning compliance, architecture, foundation work, and the coordination of every trade simultaneously. Done right, the result is seamless. Done wrong, it shows for the life of the house.

We handle the full scope: design, structural engineering coordination, zoning research, permit applications, foundation and framing, exterior envelope, all mechanical rough-ins, and complete interior finishing. You make decisions; we do the heavy lifting — and we keep you informed every step of the way.

  • Zoning & setback research handled before design begins
  • Structural engineering and architectural plans coordinated in-house
  • All permits, municipality submissions, and inspections managed by us
  • Exterior matched to your home's existing architecture and materials
  • 2-year workmanship warranty on every addition we build
Start with a Free Consultation
Scope of Work

Ground up. Inside
out. Start to finish.

Additions involve more trades, more agencies, and more sequencing than any other home project. We manage every piece — you deal with one team.

Architectural Design

We work with licensed architects to develop permit-ready drawings that fit your vision, your lot constraints, and your municipality's requirements — before a shovel touches the ground.

Foundation & Structural

Excavation, concrete footings, foundation walls, and structural framing — engineered to code and inspected at every stage. This is where additions succeed or fail long-term.

Exterior Framing & Roofing

Wall and roof framing built to match your home's pitch and profile, with ice-and-water shield, house wrap, and roofing materials that blend invisibly with what's already there.

Exterior Cladding

Vinyl, fiber cement, brick, stone, hardie plank, and wood siding — matched precisely to your existing home's exterior so the addition looks original, not added on.

Windows & Exterior Doors

Energy-efficient windows and exterior doors matched to your existing profiles — sized, positioned, and installed for proper flashing and long-term weather tightness.

Electrical & Lighting

New circuits run from your panel, receptacles and switches placed for how the space will be used, recessed and pendant lighting, and all required code compliance.

Plumbing & HVAC

Supply and drain rough-in for any wet space in the addition, plus new HVAC ductwork extended and balanced to properly condition the new square footage year-round.

Interior Finishing

Drywall, paint, trim, flooring, built-ins, cabinetry, and all finish details — designed to flow seamlessly from the existing home into the new addition without a visible seam.

Addition Types

Every home is different.
So is every addition.

The right type of addition depends on your lot, your zoning, your budget, and what you actually need. Here are the most common projects we build.

Full room addition exterior
Most Impactful

Full Room Addition

A new room built on a full foundation — the most structurally complete type of addition and the one with the highest resale value impact. Commonly used for primary suite additions, great rooms, family room expansions, and dedicated home offices. Requires full foundation, framing, roofing, exterior cladding, and complete interior finishing. Typically 200–600 sq ft and 12–18 weeks to build.

Four-season sunroom addition
Year-Round Living

Four-Season Sunroom

More than a sunroom — a fully insulated, climate-controlled addition with large glazed panels, radiant floor heat, and a roofline that ties into the existing home. Brings the outdoors in without sacrificing comfort in winter.

Bump-out addition
Best Entry Point

Bump-Out

A smaller-scale addition that extends an existing room by 5–15 feet. Commonly used to enlarge a kitchen, expand a master bath, or create a breakfast nook. Less expensive than a full addition because it ties into the existing foundation and roof structure.

In-law suite addition
Multi-Generational

In-Law Suite / ADU

A self-contained living space with bedroom, bathroom, and kitchenette — either attached to the main home or as a detached structure. Increasingly popular for aging parents, adult children, and short-term rental income. Subject to local ADU ordinances.

Primary suite addition
Top Resale Driver

Primary Suite Addition

A bedroom and luxury bathroom added to the main floor or upper level — the single highest-value addition for resale in the Chicago metro market. Often combined with a walk-in closet, sitting area, and private access from the existing master bedroom.

Second story addition
Maximum Square Footage

Second-Story Addition

When lot coverage limits prevent building out, building up is the answer. A second-story addition doubles livable square footage without touching the footprint. Requires structural assessment of the existing foundation and first-floor walls before design begins.

Home addition seamlessly matching existing architecture
Our Design Philosophy

An addition that looks
like it was always there.

The test of a great addition isn't whether it's beautiful in isolation — it's whether you can tell it was added. We obsess over the details that make the difference between a house that looks obviously extended and one that looks perfectly whole.

Roofline Continuity We match your existing pitch, eave depth, and overhang profile exactly — not approximately. Nothing signals an addition more than a roofline that doesn't belong.
Exterior Material Matching We source siding, brick, stone, or stucco that matches your existing exterior as closely as possible — and where aging has changed the colour, we handle the transition thoughtfully.
Window & Door Profile Window size, proportion, and grid pattern in the addition matches the windows in your existing home — keeping the facade reading as intentional rather than patchwork.
Interior Flow Floor heights aligned, trim profiles matched, flooring transitioned correctly — so walking from the original home into the addition feels completely natural.
Before We Design

Four things that shape
every addition we build

Additions are regulated at every level — local, municipal, and sometimes by private covenants. We research all of this before committing you to a design direction so nothing is a surprise later.

Researched First

Setback Requirements

Every municipality requires a minimum distance between your addition and your property lines — front, rear, and side. These setbacks can significantly limit how large an addition can be and where it can be placed. We pull your plat of survey, check zoning ordinances, and confirm the buildable envelope before any design work begins. Some lots allow variances, which we can apply for on your behalf.

Check Early

HOA & Deed Restrictions

Many neighborhoods in the Chicago metro have homeowners associations or recorded deed restrictions that govern exterior changes — including additions. Approval from an architectural review committee may be required before you apply for municipal permits. We help you understand what needs HOA sign-off and what doesn't, and we can help prepare the application package if needed.

Non-Negotiable

Structural Engineering

Every addition requires stamped structural engineering drawings — not just architectural plans. The engineer determines foundation sizing, beam spans, connection details, and load paths. For second-story additions, the existing first-floor structure and foundation must be assessed for adequacy before any design is finalised. We coordinate this as part of the pre-permit process, not as an afterthought.

Always Required

Building Permits & Inspections

Additions require building permits — always. In most Chicago-area municipalities this also means multiple inspections: foundation, framing, rough mechanical, and final. We prepare and submit all permit documentation, schedule and manage all inspections, and obtain the final Certificate of Occupancy. Skipping any part of this process creates serious problems at resale and with your insurance — and we never advise it.

How It Works

Six phases from idea
to completed addition

Additions have a longer planning phase than any other project we do — because the design and permit stage is where all future problems are either prevented or created.

01

Consultation & Site Study

We walk your property, review your plat of survey, confirm setbacks, check HOA requirements, assess the existing structure, and understand exactly what you need more space for. This shapes everything that follows.

02

Design & Engineering

Architectural plans are drawn, structural engineering is coordinated, and you review and approve the design before anything is submitted. We refine until the plans reflect exactly what you've envisioned.

03

Permits & Approvals

We submit to the municipality, manage all back-and-forth with the building department, and if HOA approval is required we prepare that submission too. Permit timelines vary by municipality — we manage the wait without it holding up material ordering.

04

Foundation & Framing

Excavation, footings, foundation walls, sill plates, and full structural framing — inspected at each phase before the next begins. The roof is framed, sheathed, and weather-tight before interior work touches the existing home.

05

Exterior Envelope & Rough-Ins

Roofing, siding, windows, and exterior doors are installed to match the existing home. Simultaneously, all mechanical rough-ins run — electrical, plumbing, and HVAC — each inspected before insulation and drywall close the walls.

06

Interior Finishing & Handover

Insulation, drywall, paint, trim, flooring, cabinetry, fixtures, and all finish details — matched to the existing home and installed to our standard. Final inspection passed, Certificate of Occupancy issued, punch-list walked with you, job closed.

Materials & Finishes

Built to last.
Finished to match.

Material selection for an addition balances two goals: durability appropriate for exterior exposure, and visual consistency with your existing home. We help you navigate both.

Exterior cladding and siding options

Exterior Cladding

James Hardie fiber cement — the most popular, durable, and paintable
Engineered wood (LP SmartSide) — lighter, warm texture, holds paint well
Vinyl siding — budget-friendly, low maintenance, wide colour range
Brick & stone veneer — highest-end look, matched to existing masonry
Cedar and wood siding — classic look, requires finishing and maintenance
Roofing and gutter materials

Roofing & Drainage

Architectural asphalt shingles — matched to existing roof in colour & weight
Standing seam metal — long-life, great for low-slope applications
Cedar shake — premium natural look, requires treatment program
Seamless aluminum gutters — colour-matched to fascia, no seam leaks
Ice-and-water shield underlayment on all low-slope and valley areas
Windows and exterior door options

Windows & Doors

Andersen & Pella wood-clad windows — premium, matching existing profiles
Marvin fiberglass — high performance, slim sightlines, low maintenance
Energy-efficient triple-pane available on all window openings
Sliding glass & multi-panel lift-slide doors for sunroom applications
Fibreglass exterior doors — insulated, paintable, durable in all weather
Investment Guide

What does a home
addition actually cost?

Addition costs are driven by type, square footage, structural complexity, and finish level. These ranges reflect our completed projects in the Chicago metro area.

Bump-Out
$30,000
– $60,000
Small footprint extension of an existing room — kitchen, bathroom, or dining area.
  • 5–15 ft extension on existing structure
  • Ties into existing foundation & roof
  • Minimal structural engineering required
  • Full interior finishing included
  • Shortest timeline: 6–10 weeks
Sunroom / ADU
$60,000
– $100,000
Four-season room or detached accessory dwelling unit with full mechanicals.
  • New foundation and full framing
  • Heavy glazing or standard exterior
  • Full HVAC, electrical, plumbing
  • Radiant floor heat option
  • 10–14 week typical timeline
Second Story
$175,000
& above
Full upper-floor addition — typically 3–4 bedrooms and 2 bathrooms added above existing first floor.
  • Structural assessment of existing home
  • Full second-floor framing & roofing
  • New staircase design & construction
  • Multiple bedrooms & bathrooms
  • Complete exterior re-roofing required
  • 18–26 week typical timeline
Recent Work

Three additions
we're proud of

See all projects
Garcia Sunroom Addition Sunroom

Garcia Sunroom Addition

Four-season sunroom addition with radiant floor heat, vaulted ceiling, clerestory windows, and French doors to the patio.

Elmhurst, ILLocation
280 sq ftArea
12 weeksTimeline
Wright Second-Story Addition Second Story

Wright Second-Story Addition

Full second-story addition adding three bedrooms and two bathrooms above an existing ranch-style home. Exterior matched to existing brick profile.

Oak Park, ILLocation
1,100 sq ftArea
22 weeksTimeline
Martinez Primary Suite Addition Primary Suite

Martinez Primary Suite

Main-floor addition adding a primary bedroom, luxury bathroom, and walk-in closet — siding and roofline perfectly matched to the existing home.

Downers Grove, ILLocation
420 sq ftArea
14 weeksTimeline
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Common Questions

Home addition questions,
answered plainly

Additions generate more questions than any other type of project — because they involve zoning law, structural engineering, neighbor proximity, and a longer timeline than most homeowners expect. None of that should stop you from exploring what's possible.

The best way to get real answers is to have us walk your property. Mark will tell you what's possible on your specific lot, what isn't, and what it's likely to cost — before you commit to anything.

Book a site walkthrough Call 619-368-8558 · Mon–Fri 7am–6pm
Bump-outs run 6–10 weeks. Sunrooms and full room additions typically run 12–18 weeks. Second-story additions are 18–26 weeks. The design and permit phase — usually 6–10 weeks before construction begins — is not included in those timelines. Plan for 5–7 months total from first consultation to Certificate of Occupancy on a mid-size addition.
No — we coordinate architectural and structural engineering services as part of the project. You don't need to source or manage these separately. If you already have a relationship with an architect and want to use them, we're happy to work from their plans. Either way, the design process is managed for you, not by you.
Usually, yes — with some periods of increased disruption. For most of the build, the addition is its own separate construction zone. The most disruptive phase is when we break through the existing exterior wall to connect the new addition to the house — typically a 3–5 day window where dust and cold air intrude. We seal and protect this opening as quickly as possible. Second-story additions are more disruptive because roofing the existing structure involves temporary exposure.
Often, yes — but the type and size of addition will be constrained by setback requirements and lot coverage maximums. Many municipalities allow variance requests when setbacks can't be met, which we can prepare and present on your behalf. If building out is truly not feasible, building up (second story) is frequently the answer. We research your specific lot before any design work so you know exactly what's possible before spending a dollar on plans.
It can, if the HVAC system isn't properly extended and balanced for the new square footage. We have our HVAC subcontractor assess your existing system's capacity before we start and design the duct extension accordingly. In some cases an additional air handler or zone is needed — we'll tell you upfront. An addition finished with inadequate HVAC is uncomfortable and costs you money in energy bills every year.
It starts at design — we match roofline pitch, eave depth, window proportions, and exterior material before a single footing is poured. During construction, we source siding and trim that matches your existing material as closely as possible. Where aging has changed your home's colour, we handle the transition zone thoughtfully — sometimes painting adjacent existing sections to blend the new and old seamlessly. We take photographs of your existing exterior details and use them as our spec document throughout the project.
Client Reviews

What homeowners
say about us

Real feedback from real customers we've had the privilege of working with.

"

Soandy and Mark Lovering are amazing to work with. They are our GO TO for Remodels. They can handle any project big or small. From Bathroom to Kitchen remodels they are the best.

RT
Roy True
Kitchen Remodeling
"

Project manager Fernando did a great job assessing my project. My project was complicated and some companies refused to do the work, but Fernando and his team were able to fix structural issues I had on my upstairs floorboards and they were able to fix crooked joists inside my floors. Lead worker Angel also finished off the job by doing a nice tile job on my floors. The price was fair and they finished the job on time.

TK
Todd K
Basement Finishing
"

Mark provided us with the service we expect from a contractor. We had him lead all of the hard parts of our remodel. There were no surprises or changes to his bid that weren't caused by us. For the most part, his subs were quick and responsive, and listened to direction well. When of one of his subs did not perform to our expectations, he made sure that we were satisfied by first trying to get the sub to fix things, then getting an alternate sub to complete the job to our satisfaction. We hope he is available for our next project after we save some $ for it!

KB
Kevin Burgess
Home Renovation

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