Buying a bigger share of your shared ownership home can feel brilliantly straightforward: you already live there, you know where the good light is, and you have probably made peace with the awkward kitchen cupboard. But a valuation for shared ownership staircasing is a formal step with rules, timings and costs that deserve attention before you start doing percentage maths on the back of an envelope.
Staircasing means purchasing additional shares in your home from the housing association or landlord. Whether you are moving from 25% to 50%, 75% or full ownership, the price of the share is usually based on the current open-market value of the whole property. That value must normally be confirmed by an independent RICS Registered Valuer.
What is a valuation for shared ownership staircasing?
A staircasing valuation establishes what your property would reasonably sell for on the open market at the valuation date, assuming it were sold with vacant possession. The valuer assesses 100% of the property, not only the share you already own or the slice you intend to buy.
Say your flat is valued at £400,000 and you own 50%. If you want to buy a further 25%, the starting price for that additional share would be £100,000. It is simple arithmetic, although the wider transaction is rarely quite as simple. You may also need to factor in legal fees, mortgage costs, Land Registry charges and, in some cases, stamp duty.
The valuation is not a negotiation document designed to produce the lowest possible figure. It is an independent opinion of market value, prepared in line with RICS standards and the housing association’s requirements. A good report is evidence-led, reflecting the property itself, comparable local sales and current market conditions rather than hopeful asking prices from the street.
Why your housing association cares about the valuer
Most shared ownership leases require you to use an independent RICS Registered Valuer. Your housing association will usually give specific instructions on what the report must include and may require the valuer to be on the RICS Register. Check those instructions before booking anyone. It is a small bit of admin that can save a sizeable bit of repeat-fee irritation.
Requirements vary, but a housing association may ask for details such as the full market value, the value of any improvements, comparable evidence, the valuer’s RICS credentials and a confirmation that the valuation is suitable for staircasing. Some also issue a template or specify how the report should be addressed.
The valuer must be independent. That means they should not have a conflict of interest or a personal stake in the figure. The aim is fairness to both sides: you should not pay over the market rate for the new share, and the landlord should receive the correct value for the share it is selling.
How the staircasing valuation is carried out
The process begins with an inspection of the property. The valuer will look at its size, layout, accommodation, condition, location and any features that affect value. In South East London, two apparently similar flats can land at very different figures because one has a clean lease, a quiet outlook and a decent-sized balcony, while the other overlooks a main road and has service-charge paperwork with a few too many plot twists.
They will then analyse recent, relevant sales. The strongest comparable evidence is usually nearby, genuinely similar and recent enough to reflect current conditions. A sale from two years ago, or a glossy asking price that never became a completed transaction, is less useful than people tend to hope.
The report will state a market value for the entire property and normally explain the approach taken. Your housing association uses that figure to calculate the cost of the additional share. If you are borrowing to staircase, your lender may carry out its own mortgage valuation as well. These are separate exercises, so do not assume one report automatically replaces the other.
Improvements can make a difference
If you have paid for qualifying improvements, tell the valuer and your housing association at the outset. This might include a new kitchen, replacement bathroom, loft conversion or other works that add value. Keep invoices, permissions and building regulation documentation where relevant.
Under many shared ownership leases, you may be entitled to receive the benefit of value added by approved improvements, rather than paying the housing association for a share of your own investment. However, the lease terms and housing association policy decide what counts. Decorative work and ordinary maintenance do not always qualify, and unauthorised alterations can create their own headache. Never assume that every pound spent becomes a pound of additional value.
Timing matters more than most buyers expect
A staircasing valuation commonly has a limited validity period, often around three months, but this is not universal. Your housing association will confirm the deadline. The transaction needs to progress within that window, or you may need a new valuation and another fee.
This is why it is wise to line up the practical pieces before commissioning the report. If you need a mortgage, speak with your lender or broker early. If you are using a solicitor, instruct them in good time. Check whether your housing association has a staircasing application form, administration fee, minimum share purchase or notice period.
Do not order a valuation months before you are ready merely to satisfy curiosity. The figure may be out of date by the time your funds, lender and legal work are in place. Equally, do not leave it until the last minute if you are trying to coordinate a remortgage. Property administration has a remarkable ability to move slowly just when everyone would prefer it to wear running shoes.
What a staircasing valuation costs
Fees depend on the property, location, report requirements and how quickly the instruction is needed. The housing association may also charge an administration fee, which is separate from the valuer’s fee. Ask for a clear quote and check whether VAT is included, what the report covers and whether there is a charge if access cannot be gained.
A valuation is a necessary transaction cost, but it is also a useful checkpoint. If the market value has risen more than expected, the additional share may cost more than your budget allows. If it has softened, that may alter the equation in the other direction. The right next step depends on your finances, mortgage options, future plans and the rent you will continue paying on the unowned share.
Do not confuse value with condition
A RICS valuation is not the same as a RICS Level 2 Home Survey or Level 3 Building Survey. The valuer may comment on obvious defects that affect value, but the purpose is to provide a market valuation, not to investigate the building in depth.
That distinction matters particularly in older conversions, maisonettes and buildings with communal responsibilities. If you have concerns about damp, cracking, a tired roof, cladding, planned major works or the general health of the building, a survey or specialist advice may be appropriate alongside the valuation. Buying more of a home means taking on more financial exposure to it. A charming period feature is lovely; an undisclosed roof bill is less so.
Can you challenge the figure?
If the valuation feels high, start by reading the report rather than firing off an indignant email. Check that the property details are correct, including floor area, number of bedrooms, tenure, parking, outside space and condition. Point out factual errors promptly and provide evidence of qualifying improvements if they have not been considered.
You can also ask your housing association about its challenge process. Some will consider relevant evidence, while others may require a formal review or a new valuation. A challenge is more persuasive when it identifies a clear factual issue or provides stronger comparable sales, not simply because a lower figure would be more convenient.
The housing association is not obliged to accept a preferred number, and market value is an informed professional judgement rather than a machine-generated certainty. Still, clear communication early on is far better than discovering a misunderstanding after solicitors have started work.
Preparing for your valuation appointment
Have your lease, details of any improvements and supporting paperwork ready. Make sure the valuer can access every room, any loft space, garden, balcony, garage or allocated parking. A quick tidy helps the inspection run smoothly, though nobody expects a show-home performance. The valuer is assessing the property, not judging your laundry situation.
If you are unsure whether a particular alteration needs mentioning, mention it. Be open about anything material, including lease restrictions, service-charge issues, upcoming major works or defects you know about. Accurate information gives the valuer the best chance of producing a report that stands up to scrutiny.
A valuation for staircasing is one of those quiet, practical moments that can shape a major financial decision. Get the housing association’s instructions first, choose an appropriately qualified independent valuer, and start the process when your funding and legal plans are ready to move. Then you can focus on the satisfying part: owning a little more of the place that is already home.
