Case Study · A Close Look
Sacierges-Saint-Martin: A £17k Cottage-and-Barn on Moving Ground
It has the shape the brief likes — a little stone cottage with an attached barn and a fair garden, for about seventeen grand. But it's tiny, the WC is outside, the energy rating is rock-bottom, there's an undeclared building on the plot, and the ground has a real subsidence habit. A cheap one worth understanding before you fall for the photos. Here's the full workup.
Sacierges-Saint-Martin, Indre (36) · southern Indre, near Saint-Benoît-du-Sault · ≈ 560 km / 5¾ hrs from Calais · ≈ 650 km / 7.4 hrs from Bern
Same corner of the Indre as Aigurande, same agency, same trap: cheap and the right shape on paper, but the free Géorisques check tells the real story. Worth the full workup because it's a textbook "check the ground first" case.
📸 See the photos: view the full Sacierges listing on Properstar → (opens in a new tab)
The free routine that flags the ground and the paperwork before you drive 560 km.
Run the checklist →🔑 Haggling a Long-Empty WreckA tiny G-rated cottage with an outside WC is a buyer's-market house — price the work in.
Read the guide →🔥 The One Warm RoomA G rating means heating and insulation from scratch — start with one warm room.
Read the guide →The listing, in full
The agent (Cmillet Immobilier) describes a dwelling house of a main room and a separate kitchen, with the WC outside and an attached barn. At the back of the plot there's an unfinished, unregistered brick-and-breeze-block construction. The house is 44 m², built 1900, on 772 m² of garden. There's a video tour on the listing. Priced at about €19,900 (≈ £17,000).
- Price≈ €19,900 (≈ £17,000)
- FeesNot stated — confirm who pays the agency fees
- Rates (taxe foncière)Not stated — confirm with the agent
- LocationSacierges-Saint-Martin (36170), southern Indre — near Saint-Benoît-du-Sault
- Drive from Calais≈ 560 km / ~5¾ hrs
- Drive from Bern≈ 650 km / 7.4 hrs
- House44 m², built 1900 — a main room + a separate kitchen
- Rooms1 main room, 1 bedroom, separate kitchen — WC is outside
- Land772 m² garden
- OutbuildingsAttached barn + an unfinished, unregistered build at the back
- Build / materialsProper stone — 1900 house + attached barn; the rear add-on is breeze-block (the weak part)
- Water / electricity / drainageNot stated — confirm all three
- HeatingNone stated — to install (plan a wood burner)
- Energy rating (DPE)G (604) — among the very worst
- Detached?Reads detached — confirm
- AgentCmillet Immobilier (Cristelle Lagarrigue-Millet)
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The good worth having
The right shape, cheaply
A stone cottage with an attached barn and a 772 m² garden for about £17k — the house-plus-barn shape the brief is built around, at the bottom of the market. The barn is the value: workshop, store, and room to expand a very small house.
Radon low — and the tip's in the village
One genuine plus on the ground: radon is the lowest band, so none of the ventilation work the granite belts need. And the déchèterie is in Sacierges itself — a rare convenience for clearing a renovation.
The bad what needs doing
Tiny, basic, and G-rated
At 44 m² with the WC outside and a G rating (604 kWh/m²/yr — near the worst possible), this is a full renovation of a very small house: a bathroom to build inside, heating and insulation from scratch, and every service to confirm and likely redo. The barn and attic are where any real living space comes from.
An unregistered building on the plot
The "unfinished and unregistered" construction at the back is a real flag. An undeclared building can need regularising with the mairie (a declaration or permit) or, at worst, taking down — and it's the buyer who inherits the problem. Get the notaire to check its status before you commit.
The ground check
The routine that killed Thollet — Géorisques, run on the commune (INSEE 36177).
⚠️ These ground figures (flood, subsidence, radon) are official records for the commune — real, but commune-wide, not proof for this exact plot. Check it yourself: official Géorisques risk report (ERRIAL) → — enter the property address.
Clay that moves — five subsidence declarations
The point map reads clay moderate, but the record is the tell: five drought-subsidence disaster declarations and "differential settlement" flagged, plus three flood/mud-flow declarations. Five subsidence years is a commune where the clay reliably moves in a dry summer — cracks, tie-rods and settlement territory for a shallow-founded rubble-stone cottage. The exact plot needs an address-level clay check before anything else.
The one bright spot: radon low
Unlike the granite belts, radon is class 1 of 3 (low) here — no under-floor ventilation design to budget for. Low seismic risk too. The ground story here is clay, full stop.
DIY-er vs needs-a-builder the honest split
A small house means a manageable DIY job — with the ground, the paperwork and the certified trades to buy in.
If you're hands-on — what you can do yourself
Only 44 m² to tackle: build a bathroom inside, insulate and board, floors, a kitchen, decorating, windows, and a wood burner (with a certified sweep). Convert the attic and fit out the barn for the space you actually need. Most of it is materials and graft.
Where you'll need a pro (or a builder)
• A ground opinion — with five subsidence declarations, get a professional read of the address-level clay (and any existing cracks) before you buy, so movement is priced in.
• The paperwork — the notaire and mairie on the unregistered building's status.
• The electrics & drainage — a Consuel-signed rewire and, if off-mains, a SPANC-approved septic.
A G rating this deep also opens the biggest renovation grants if you use certified trades.
What you'll need to clear it the van
A T5-style van — and a short run to the tip
A small cottage plus a barn strip-out is modest volume; a medium T5-style van handles it, and unusually the déchèterie is right in the commune, so the tip runs are short. Rubble from the reno and the outside-WC works may want a trailer or a couple of bigger loads.
Getting rid of the rubble — the local tip read this first
Nearest déchèterie: in Sacierges itself (Le Colombier)
The commune has its own déchèterie at Le Colombier — no drive to speak of, which is a real bonus for a renovation.
But — residents only, like the UK
A French déchèterie serves the local community's residents: you need a justificatif de domicile (a local bill in your name), often plus a badge or registration. A UK- or Swiss-plated van with no French address won't get in, exactly as at a British tip. Until you've completed and have a local address, budget a private skip (benne) for the first big clear-out.
The score
The proper stone house and barn and the low radon lift it; the five subsidence declarations, the tiny G-rated house, the breeze-block add-on and the undeclared building drag it down. It lands in the lower third of the rankings — cheap and the right shape, but the ground and the paperwork are the catch.
The verdict
A watch, but a wary one. For £17k you get the house-plus-barn shape on a decent plot, with low radon and the tip on the doorstep. Against that: it's tiny with an outside WC, G-rated, carries an undeclared building you'd inherit, and sits on ground with five subsidence declarations. Only worth a viewing if the barn and the price outweigh all that — and only after the exact address gets a precise clay check and the notaire clears the unregistered build. For sound ground at a similar price, the Creuse pins rank higher.
How we judge every place
Same free routine, every time — it's what turns "cheap cottage with a barn" into a clear-eyed 4.5 before you ever get in the van.
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