The median single-family list price in North Andover sat at $745,000 in July 2026, with homes moving in about 24 days and the average sale landing roughly 2% above ask. Those numbers describe the pace of a transaction. They do not describe the property.
Before a buyer writes an offer in this town, three regulatory overlays quietly decide what that number can buy: a neighborhood conservation district that governs exterior changes, a watershed protection zone that touches roughly 800 parcels, and a drinking-water reservoir whose "waterfront" comes with a rulebook most buyers only meet after closing. Learn where the lines fall, and the median stops being a price and starts being a filter.
The overlay that decides your renovation before you buy
Machine Shop Village sits just east of the modern town center, a well-preserved mid-19th-century mill village anchored by the former Davis & Furber machine works and a run of 1839 double cottages on Water Street. The National Register listed it in 1982. What matters at the closing table, though, is the local overlay layered on top: the Machine Shop Village Neighborhood Conservation District, established by town bylaw under Chapter 125.
Read the bylaw and the mechanism is plain. No building permit for construction or exterior alteration, and no demolition permit for a structure inside the district, issues from any town department until the five-member Neighborhood Conservation District Commission grants a certificate to alter. The Commission works from a set of design guidelines in Appendix B, and a "compatible" project is defined against those guidelines rather than against the buyer's Pinterest board.
For a move-up buyer eyeing a Water Street double cottage or one of the higher-style Greek Revival and Italianate homes former mill owners left behind, that changes the pre-offer math. Replacement siding that no longer represents the original fabric is defined in the bylaw as a regulated exterior change. So is a front-door swap that departs from the original form and function. A house that "just needs windows" carries a review calendar, not a weekend at the home center. The homes are beautiful. The permission is a process.
The watershed line that runs through 800 addresses
North Andover's drinking water comes from a single surface source: 560-acre Lake Cochichewick, the largest lake in Essex County, feeding about 28,000 residents through a treatment plant that pumps roughly 3.2 million gallons a day on average and 6.5 to 7.0 million on summer peak. Around the lake sits a 2,732-acre watershed and, over that watershed, a Watershed Protection zoning district that restricts uses to preserve water quality.
The town's watershed plan was updated in October 2020 by Weston and Sampson after a stakeholder process, and the current mapping affects roughly 800 property parcels. Only 43 of those are residential lakeshore lots. The distinction matters because the watershed boundary is not a lakeshore ring. Near the airport it sits about 700 feet from the water. On Barker Street, Bradford Street, Lisa Lane, and Coventry Lane, it runs nearly a mile back from the shore.
Translation for a buyer: two houses on the same road can sit on opposite sides of the same overlay, and the one inside faces stricter constraints on additions, drainage work, and certain accessory uses. The Bear Hill Estates enclave off Dale Street, where Ownerly puts the average Bear Hill Road lot at 1.17 acres and the average annual tax bill near $10,000, sits south of the lake and close enough to matter. A buyer walking a wooded 1-acre lot needs to know which side of that line the septic field, the pool site, or the future garage addition falls on before submitting an offer, not after inspection.
What "waterfront" means when the lake is a reservoir
The MLS uses the word "waterfront" the same way in North Andover as it does in Wolfeboro. Lake Cochichewick does not.
"Regulations have been established for the protection of Lake Cochichewick, North Andover's Only Drinking Water Supply."
The town's rules, adopted by the Board of Selectmen in May 2002 and amended in September 2016, restrict lake use to manually propelled craft — rowing shells, johnboats, dinghies, rowboats, canoes, kayaks — plus small electric-motor boats up to 15 feet. Occupants cannot make contact with the water. Boats with self-bailers or other thru-holes are prohibited. Inflatables, windsurfers, paddleboards, and seaplanes are out. Swimming, wading, and hip-wader fishing are all restricted, and the posted fine for swimming is $50. Dogs are not allowed in the water, on the ice, or in the boats.
That does not make a Lake Cochichewick address less valuable. It makes it different. The Trustees of Reservations manages Weir Hill on the west shore, the North Andover Country Club and Brooks School occupy stretches of the east side, and about forty percent of the shoreline is conservation land. A lakeshore parcel here delivers protected views and quiet water almost by construction. It does not deliver a swim raft. Buyers relocating from Lake Winnipesaukee or a New Hampshire second-home market often price the lifestyle before they price the rulebook, and the offer looks different once they have.
Reading the July 2026 numbers against the overlays
Set the overlays next to the July 2026 market and the median resolves into distinct products.
Old Center. The 21-acre town common area holds the town's earliest fabric, including the First Burying Ground and a run of historic Colonials. New construction on the perimeter has been listed above $1.5M in recent months, but interior historic lots trade on a narrower buyer pool because the addition envelope is smaller than the parcel suggests.
Machine Shop Village. Buyers get a walkable National Register district, some of the most textured architecture in town, and the certificate-to-alter workflow described above. Price per square foot underperforms newer North Andover subdivisions on a straight comparison, and that discount is not a deal — it is the market pricing in the Commission calendar.
Bear Hill and Great Pond Road. Mid-1980s and 1990s Colonials and Capes on wooded acre-plus lots off Dale Street. Assessed values on Bear Hill Road cluster near $700,000 with taxes near $10,000, and true lakefront on Great Pond Road trades well above the median, with $1.8M–$2M list prices on larger homes. Overlay exposure varies parcel by parcel.
Sutton Pond, Royal Crest, Alcott Village, Kittredge Crossing. Attached-home stock built between the late 1990s and mid-2000s, currently the entry lane in a market where Zillow's ZHVI reads $733,453 and Redfin scores competitiveness at 72 out of 100.
Against that map, the Four Seasons Realty 2026 outlook for the town — median $750,000, up 7.2% year over year, three offers on average, hot homes 6% above list in 16 days — is not one market. It is a weighted average of four.
A pre-offer sequence that respects the overlays
The friction here does not surface during a general home inspection. It surfaces during permitting, months after the deed is recorded. That is the wrong time to discover it.
- Pull the parcel against the Machine Shop Village NCD map in Appendix A of Chapter 125 before you draft the offer, not after inspection.
- Confirm whether the parcel sits inside the Lake Cochichewick Watershed Protection District. Two neighbors on Barker Street can answer that question differently.
- If the target house is pre-1900, ask the listing agent for prior certificates to alter on file. The paper trail tells you which changes were approved and which were denied.
- For a lakeshore parcel, read the current town boating regulations and the Watershed Plan before you build the pool line into your budget.
- Price renovation on the review timeline, not the calendar timeline. A kitchen is a kitchen. A siding replacement inside the NCD is a hearing.
Do that sequence and the July 2026 median stops describing a house you have not seen. It starts describing the house you actually want.
FAQ
Does the Neighborhood Conservation District apply to interior renovations? The bylaw governs exterior architectural features, additions, new construction, and demolition inside the district. Interior work that does not require an exterior alteration or a demolition permit falls outside the Commission's certificate-to-alter jurisdiction, though other town permitting still applies.
Can I get a boating permit for Lake Cochichewick as a non-resident owner? Permits are issued by the town under the regulations adopted in 2002 and amended in 2016. Watercraft must meet the design rules — manually propelled or electric under 15 feet, no thru-holes, occupants isolated from lake contact — regardless of who holds the permit. The rules travel with the boat, not the buyer.
If you are weighing a North Andover address against a comparable list price in Andover, Boxford, or a Southern New Hampshire town, the overlays above are exactly the kind of detail a portal will never surface for you. Shannon DiPietro and the team at DiPietro Group work the North Andover market parcel by parcel. Schedule a free buyer consultation and we will map the overlays, the sub-neighborhoods, and the July 2026 numbers against the house you actually want to buy.
