Software to run shared-ownership and fractional schemes
Shared ownership should not mean shared confusion. Semseo records who owns what, who has the right to use it and when, and handles the whole resale journey — so a quarter-share, a company shareholding or a fixed week is treated as the distinct asset it really is, never shoe-horned into a whole-property listing.
It works the same way for anything co-owned: a villa, a boat, a vehicle, a block’s robot or a syndicate’s machinery. Owners get their own login, every scheme gets its own public page, and the time nobody is using can earn.
Included at no cost on the free Starter plan.
The four tenure models
Fractional and shared property covers several legally distinct arrangements. They are often lumped together, but each one is bought, owned and sold differently — and each needs to be recorded differently.
Fractional deeded ownership
The property is divided into a fixed number of shares — typically four, six, eight or twelve — and each share is a registered interest in the freehold or its equivalent, held on the title deed or through a formal co-ownership deed. Owning a share means owning a real, sellable slice of the asset, together with a defined allocation of use each year. When you sell, you transfer the deeded share, not a booking.
Company shares (e.g. Spanish SL)
The property is owned by a company — commonly a Spanish Sociedad Limitada (SL) or a similar special-purpose vehicle — and buyers own shares in that company rather than a slice of the deed. Control and use follow the shareholding and the company’s statutes. It is popular for overseas villas because a share transfer can be simpler than a cross-border conveyance, but the register of who holds which shares must be kept meticulously.
Shared ownership with staircasing
A part-buy, part-rent tenure, most familiar in UK affordable housing: the occupier buys an initial share of the leasehold — say 25% to 75% — and pays rent on the remainder to a housing provider. Owners can staircase up to buy further shares, increasing their equity, and under newer models can staircase down in defined circumstances. Every step changes the equity split, the rent and the eventual sale price.
Leasehold weeks
Ownership of a defined period — usually one or more specified weeks — in a property or resort, granted under a long lease or membership deed rather than a booking. A fixed week returns the same dates each year; a floating week draws from a pool; and some schemes rotate weeks so owners share the sought-after dates over time. The week is an asset the owner can sell, gift or bequeath.
How Semseo manages it end to end
From the day a share is created to the day it changes hands, the platform keeps the ownership, the usage and the sales pipeline in one place.
Scheme & share register
Set a scheme up once, define its shares, and every fraction is tracked with its current owner and full history — original sale, staircasing steps, transfers, gifts and resales. Nothing is overwritten, so the register always shows who held which share, when, and at what price.
Usage calendars
Fixed, floating and rotating weeks are materialised year by year into concrete dated allocations, so owners and staff can see the actual weeks each owner holds in any given year. Allocations are clash-checked across the whole scheme and changeover days are respected, so no two owners are ever double-booked across a handover. A single button rolls fixed and floating rows into next year, leaving the rotating ones for you to assign deliberately.
Where an asset is shared by the hour rather than the week — a block’s robot, a workshop machine — allocations can carry start and finish times, and the same overlap protection applies to the hour.
Resale listings
List any share for resale in a few clicks: set the asking price, and the listing carries a clear usage summary and inherits the photos, description and location straight from the parent property record. No re-keying, and buyers see exactly what the share includes.
Partner distribution
Share data is published as structured fields in the Semseo XML v4 feed, so partner sites and portals that understand fractions can display them accurately — the price for the share, the fraction size and the usage. Because the data is explicit, a quarter-share is never mistaken for, or mispriced as, a whole property.
Public catalogue pages
Ready-made /shares/ pages appear on your public websites, presenting available fractions in a clean catalogue with enquiries routed straight to your team through the platform’s audited enquiry system. See a live example at property-partnership.com/shares/.
Verification stamps
Record that the important documents were actually sighted: stamp a scheme’s deeds, company statutes or co-ownership agreement — or an individual share certificate — as verified, with the document reference, who checked it and when. Stamps are dated and permanent, and they accumulate rather than replace each other, so buyers and colleagues can see a listing is backed by real, seen paperwork.
Owner-initiated resale
An owner who wants out does not have to chase you. From their own login they raise a resale request against their share, with a suggested price and any notes. It lands in a queue on your listings screen: approve it and the listing is created with the share already locked in, or decline it with a reason the owner sees. Either way the owner is told the outcome, and you keep the instruction in one place instead of in an inbox.
Swap availability
Holders can advertise the periods they are willing to swap and the destinations they would like in return, either through you or from their own login. Offers appear on the scheme’s public page. It is availability advertising rather than a booking engine — the conversation stays between the parties, which is exactly what most schemes want.
Not only property
The awkward truth about co-ownership software is that it is usually written for one kind of thing. Semseo treats the scheme as the subject and the asset as a detail, so the same register, calendar and resale route work for a villa, a yacht, a van, a robot or a rock breaker.
An asset register, not a property workaround
Vehicles, boats, robots and equipment are first-class records with the identifiers that actually matter for each: registration for a vehicle, hull identification for a boat, serial number for a robot or machine, plus make, model, year and its usual base, berth or depot. Any of them can carry a share scheme, so a twelve-share yacht syndicate or a five-farm machinery ring is set up exactly the way a fractional villa is.
Custom fields, live the same day
Every class of thing has its own vocabulary, so the extra fields are data, not code. A boat carries beam, draft, berths, engine hours and the licence a skipper needs; a robot carries payload, battery runtime, its abilities and its software version; a machine carries reach, power and the ticket its operator must hold. Properties work the same way, scoped by property type.
Fields appear on the edit form and, when they are marked public, in the specifications on the public pages. If the field you need does not exist, you request it from inside the form: we approve it and it is live immediately, on your records and everyone else’s using that type — no release, no waiting for a version.
A front door for owners, and one for the public
Most of a managing agent’s workload is answering the same questions: which weeks are mine, where is the deed, can I sell, what did I earn. Two pages remove most of it.
The owner portal
You invite an owner from their share; they get an email whose link signs them straight in, and they set a password for next time. Inside, at sharedtenure.com/my/, they see their own shares and share sizes, their usage calendar, their documents, their swap offers and their hire earnings, and they can raise a resale request.
It is scoped to the shares that carry their owner reference, so an owner sees their position and nothing else. Every screen is read-only except the things they are meant to act on.
A public page per scheme
Give a scheme a web address, write a description, switch it on: it publishes at sharedtenure.com/your-scheme, with property schemes also mirrored onto globalpropertylink.com and property-partnership.com. It carries your marketing copy, the scheme facts, any shares currently for sale, swap availability, the asset’s public specifications and any time offered for hire.
Deliberately, it never shows the occupancy calendar or who owns what. Prospective buyers get a page they can be sent; existing owners get their privacy.
The time nobody is using can earn
Almost every shared asset sits idle for part of the year: the unsold weeks in a part-filled scheme, the weekday mornings on a block’s robot, the months between harvests on a shared machine. Advertising that time is a few clicks, and the money that comes back divides itself.
Advertise a window
Set the dates, or the hours for equipment, a price and your hire terms. The window appears on the scheme’s public page and enquiries arrive in your CRM. Nothing is hireable unless you offer it, and a window is refused outright if it clashes with an owner’s allocation, another window or a live booking.
The split is automatic
Mark a booking paid and the income is divided on the spot: your commission percentage off the top, then one line per share, pro rata to holding, whether the scheme is measured in fractions, company shares or equity percentages. The lines are held on a ledger you settle off as you pay each owner — and the owners can see their own lines, settled and pending, in the portal.
Owners can release their own time
An owner who cannot use a week can offer it from their own allocation instead of wasting it. The income is attributed to that owner rather than shared across the scheme, less your commission. It is the answer to the oldest complaint in fractional ownership: paying for time you did not take.
In preparation: paying online, and damage deposits
Today a hirer enquires and you confirm the booking, taking payment however you normally do; the split and the ledger work exactly the same on a manually recorded booking. Card payment at the point of booking, and a refundable damage deposit held on the hirer’s card and released or claimed after the return, are built but not yet switched on. We will say so plainly here when they are.
Who is it for
The same scheme data works whether you are creating fractions, reselling them, looking after owners day to day, or simply sharing one expensive thing between a handful of people.
Developers
Sell remaining stock as fractions. Split slow-moving whole units into shares, publish them to your catalogue and feeds, and reach buyers who want a share of a place rather than all of it.
Agencies
Take resale instructions on shares as easily as on whole properties. The register tells you exactly what is being sold, and the listing builds itself from the parent property.
Managing agents
Keep clean owner records and usage calendars for every scheme you run. Materialised weeks, clash checks and a full ownership history make owner queries and year-planning straightforward — and the owner portal answers most of those queries before they reach you.
Syndicates and co-owners
A boat syndicate, a family holiday house, four friends and a campervan. Run your own scheme without an agent: a proper register, a calendar everyone can see, documents in one place, and a public page if you ever need to sell a share.
Shared equipment and machinery rings
Farms sharing a machine, a trade sharing plant, a residential block sharing a robot. Book by the hour rather than the week, keep the rota honest with overlap protection, and let the quiet months pay towards the running costs.
Block and estate managers
A shared asset bought for a building — a robot, a van, a workshop — is a scheme with one share per flat. Residents book their slots, the register records who holds what, and hire income from the hours nobody wants offsets the service charge.
What it costs
The shares and asset toolkit is included at no cost on the free Starter plan. Share schemes, the register and its history, usage calendars, verification stamps, resale listings, swaps, the asset register, custom fields, public scheme pages, the owner portal and idle-time hire — all of it, free.
That is a deliberate choice rather than a trial. Shared ownership is badly served by software, and we would rather be the place schemes are run than charge the handful of people who currently run them properly. If your organisation later needs the wider platform — CRM, events, finance, multi-site publishing — that is what the paid plans are for.
Any commission on hire income is yours, set per scheme; the platform does not take a cut of it.
Frequently asked questions
Can fractional listings leak into normal property feeds?
No. Shares are deliberately excluded from standard whole-property feeds and only appear in shares-aware formats such as the Semseo XML v4 feed and the /shares/ catalogue pages. This prevents a fraction ever being shown or priced as if it were the whole property.
Does the platform handle staircasing?
Yes. Shared-ownership staircasing is recorded step by step, both up and, where the scheme allows, down. Each change updates the owner's equity share, the rent on the remainder and the figure used at resale, and the previous position is kept in the history.
Can owners swap or change weeks?
Yes. Because usage is materialised into dated allocations each year, weeks can be reassigned, swapped between owners or moved within a floating or rotating pool, with clash-checking to stop any double-booking across changeover days.
What is the difference between fractional ownership and timeshare?
Fractional ownership gives you a transferable asset, such as a deeded share, company shares or a leasehold interest, that sits on a register and can be sold or inherited. A timeshare usually gives only a right to use, with no equity to resell. Semseo is built around the ownership models.
How do you handle company-share schemes such as a Spanish SL?
The company is set up as the scheme and its shares are the tradeable units. The register tracks each shareholder and every transfer, so you always know who controls the company and holds the right to use, which is essential when a sale happens as a share transfer rather than a conveyance.
Do buyers know the paperwork is genuine?
Verification stamps record that the deeds, company statutes or co-ownership agreement were sighted, by whom and when. Combined with the full ownership history on the register, buyers and agents can see that a listing is backed by real, checked documents.
Does it only work for property?
No. Vehicles, boats, robots and equipment are first-class records in their own asset register, with the identifiers each needs, and any of them can carry a share scheme. Boat syndicates, machinery rings and a residential block sharing a robot are set up exactly the way a fractional villa is, and equipment shared by the hour uses the same calendar with start and finish times.
Can owners see their shares online?
Yes. You invite an owner from their share record and the email signs them straight in. In the owner portal they see their own shares, their usage calendar, their documents, their swap offers and their hire earnings, and they can ask you to list a share for resale — which arrives as a request you approve or decline with a reason. The portal is scoped to the shares carrying their owner reference, so they see their own position and nothing else.
Does the public scheme page reveal who owns what?
No, and it never shows the occupancy calendar either. A published scheme page carries your description, the scheme facts, any shares for sale, swap availability, the public specifications and any time offered for hire. Ownership and occupancy stay private by design.
Can a scheme earn from time nobody is using?
Yes. Advertise a window of idle time — unsold weeks, or hours on shared equipment — with your own hire terms, and enquiries come to you. When you mark a booking paid, the income is split automatically: your commission off the top, then pro rata by shareholding, onto a ledger the owners can see. An owner can also release time from their own allocation, in which case the income is theirs less your commission. Card payment at the point of booking and refundable damage deposits are built but not yet switched on, so for now you take payment your usual way and record the booking.
What if we need a field the software does not have?
Request it from inside the form. Extra fields on properties and assets are data rather than code, scoped to a property type or an asset class, so a boat can have draft and required licence while a robot has payload and software version. Once approved the field is live immediately on that type’s edit form and, if it is marked public, in the specifications on the public pages. No software release, no waiting for a version.
What does the shared-ownership module cost?
Nothing. The shares and asset toolkit is included on the free Starter plan — schemes, register, history, calendars, verification, listings, swaps, custom fields, public scheme pages, the owner portal and idle-time hire. Any hire commission you set is yours; the platform does not take a share of it. Paid plans exist for the wider platform, not for this.
Ready to manage shares properly?
The shares and asset toolkit is free on the Starter plan. Start a scheme yourself, or talk to us about the ones you already run.
Running a scheme without an agent? There is a plain-English walkthrough at sharedtenure.com.