What a home addition in Silver Spring actually involves
Almost everything in Silver Spring's core predates 1978, which means the EPA's Renovation, Repair and Painting rule applies to any work that disturbs painted surfaces. That is not a scare tactic, it is a certification and containment requirement, and a contractor who has not mentioned it has either not thought about it or is not certified. The grade changes across Silver Spring lots mean deck and addition foundations often have to deal with real elevation difference, retaining, and drainage that flows toward the house rather than away from it.
- Feasibility and zoning before design. Pull the plat, establish the setbacks, calculate existing lot coverage, and confirm the height and bulk limits that apply. Roughly speaking, this determines the size and shape of what you can build before an architect draws a line.
- Permit submission and review. A complete package — site plan, architectural, structural, energy compliance — submitted to the reviewing jurisdiction, with responses to any comments handled by us rather than forwarded to you.
- Excavation and foundation. Footings below the local frost depth, foundation walls or piers, waterproofing and drainage, and a slab or crawlspace detail that will not become the source of a moisture problem later.
- Interior finish and the seam. Floor levels reconciled, drywall and trim matched, flooring run continuously where possible, and the transition detailed so the house reads as one house.
What we typically find on a Silver Spring house of this era (1925 to 1965). Silver Spring houses tend to surprise people with sloped and settled floors, additions done under previous owners without permits, and lead paint under every layer applied since. The unpermitted prior work is the one that costs money, because it has to be resolved before new permitted work can build on it.
Lead paint: the rule that applies to most of Silver Spring
One regulation shapes almost every project on older housing here, and it is the one homeowners hear about least. Under the EPA's Renovation, Repair and Painting rule, disturbing painted surfaces in a pre-1978 home requires a certified firm, a contained work area and a defined cleanup process. Most of Silver Spring's housing stock predates 1978, so assume this applies to your house unless someone has established otherwise. We are certified for this work and it is built into how we set up, not bolted on. Worth asking every other contractor bidding your job whether they are, and asking to see it.
What drives the cost on a Silver Spring home addition
There is no honest price on a web page for work like this, and a contractor who publishes one is either guessing or fishing. What is useful is knowing what actually drives the number, so that when three bids come back at three different prices you can tell which one understood the job.
- Foundation type and site conditions. Grade, soil, access for equipment and how far the excavator has to reach all move the number.
- How the roof ties in. A simple gable extension is straightforward; a tie-in into an existing hip or a low-slope intersection is engineering and flashing detail.
- Matching existing materials. Siding, roofing, brick and window profiles that are no longer made drive either sourcing effort or a design decision about where the new material starts and stops.
- Small to mid-size lots with sloping grade in many neighborhoods, which is why so much of the housing stock has walk-out or partially exposed lower levels. That is a Silver Spring-specific factor and it belongs in the conversation early.
The mistakes we get called in to fix
- Designing before checking setbacks and lot coverage. It is the single most common way people spend money on drawings that cannot be built.
- Assuming the existing HVAC will handle the new space. Adding conditioned area to an already marginal system means the whole house is uncomfortable instead of just the addition.
- Choosing a builder who cannot show you a license, a certificate of insurance, and the permit history on their own jobs.
One licensed team, one contract, one point of contact
An addition touches excavation, foundations, framing, roofing, siding, windows, electrical, plumbing, HVAC and interior finish, and it has to marry a new structure to an old one so that the seam is invisible from both sides. There is no version of this that a homeowner can subcontract piecemeal and expect to go well. It is the definitional general contracting job.
The transparency test for any contractor is short: license number, certificate of insurance from the carrier, and a straight answer about subcontractors. Ours are MHIC #111971, general liability and workers' compensation with certificates available before signing, and yes, the specialty trades on your job are licensed subcontractors carrying their own coverage and pulling their own trade permits. One contract with us, one point of contact, and one company that owns the outcome regardless of which trade caused it.
Where we work in Silver Spring
- 20901
- 20902
- 20904
- 20906
- 20910
- Woodside
- Four Corners
- Sligo Park Hills
- Northwood Park
- Kemp Mill
- Forest Glen
How a Silver Spring project runs
- A free visit that produces a document, not a pitch. No presentation, no same-day discount, no financing conversation before anyone has looked at the house. We measure, we photograph, we ask what is not working, and we leave you with something written you can compare against every other bid.
- Feasibility against Silver Spring rules, before design. We establish what the Montgomery County Department of Permitting Services will require for home addition at your address, and what your lot, your zoning and your existing house will allow.
- Everything priced and agreed before a permit is filed. You see the scope broken into line items, the allowances stated as real numbers rather than vague placeholders, and the process for handling anything discovered mid-project. Only then does the permit package get assembled and submitted, with us answering the reviewer rather than forwarding comments to you.
- One crew, one schedule, one closeout. MHIC #111971, Our own supervision on site, inspections met by us, and a documented punch walk with the permits closed out at the end.
Free Silver Spring home addition consultation
An unhurried visit, a straight answer about what the Montgomery County Department of Permitting Services will require at your address, and a written scope. Nothing owed, and you keep the permit guidance whether you hire us or not.
Home Additions across Silver Spring and Montgomery County
Woodside, Four Corners, Sligo Park Hills, Northwood Park, Kemp Mill and Forest Glen are all inside our regular working area, along with 20901, 20902, 20904, 20906, 20910.
Homeowners here usually reach us for more than one thing at a time. Related work in Silver Spring: whole-home renovation in Silver Spring, kitchen remodeling in Silver Spring, basement finishing in Silver Spring, deck building in Silver Spring.
Most remodelers stop at the drywall. We started at the roof and worked inward, so the envelope is not a referral for us. Roof replacement, siding, aluminum siding, gutters, soffit and fascia and window replacement all sit under the same contract as the interior work, which matters most on the day somebody opens a wall and finds out why the paint kept failing.
Silver Spring home additions questions
Do I need a permit for a home addition in Silver Spring, MD?
Your reviewing authority is the Montgomery County Department of Permitting Services. An addition always requires a building permit, and it always requires zoning review, because you are changing the footprint or the volume of the structure. We confirm the requirement for your specific parcel rather than generalizing, because in this region the answer genuinely changes across a municipal boundary. We pull the permits and meet the inspections as part of the contract.
Are you licensed to do this work in Silver Spring?
Yes. We hold MHIC #111971 with the Maryland Home Improvement Commission, and we carry general liability and workers' compensation coverage with certificates available on request. Both numbers are publicly verifiable through the state license lookups, and we would encourage you to check ours and everyone else's you are considering.
Is this worth doing if we might sell the Silver Spring house in a few years?
Silver Spring has the widest spread between what a house is worth updated and what it is worth dated of anywhere in the inner county, which is why so much work here is bought as an alternative to selling. What buyers and appraisers here respond to is more usable square footage without moving — finished lower levels, opened kitchens, and a second full bath where the house only ever had one. The other half of the answer is documentation: permitted work with closed-out inspections is an asset at resale, and unpermitted work is a negotiating lever for the buyer.
Will the addition look like an addition?
Only if it is designed and detailed badly. The things that give an addition away are roof pitch that does not match, a tie-in with a visible seam, siding or brick that is close but not right, and window proportions that differ from the original. Those are all decisions made at design, which is why the design and the build should not be separate conversations.