RICS Red Book valuations accepted by HMRC








Our RICS-qualified valuers carry out probate valuations across Washington, Horsham, West Sussex, the parish by Chanctonbury Ring and The Frankland Arms. A probate valuation records the open market value at the date of death, which is the figure executors need for the inheritance tax return and the estate accounts. We provide a formal RICS Red Book report, written in a way HMRC can review and challenge if required. That matters when families are dealing with a period that already asks a great deal of them.
Washington is a small parish, yet its property values sit higher than many people expect. homedata.co.uk records show a current median house price of £485,000, a freehold sale at £558,000 in May 2024, and a 12-month change of +7.3%. Those figures matter because one detached house, a weatherboarded cottage, or a stone-built home near the village centre can push an estate into inheritance tax territory faster than a generic appraisal suggests.

A probate valuation is not a rough guide, and it is not the same as a selling price estimate. Our valuers assess the property as it stood on the date of death, then set out the open market value using RICS Valuation - Global Standards. HMRC expects a figure that can be defended, not one built on optimism or a quick desktop guess. In a place like Washington, where carstone cottages, Sussex brick, and weatherboarded homes all present differently, the evidence has to be specific.
Estate agent appraisals usually focus on what a seller might achieve on the open market today. Probate work follows a different brief, because the valuation must reflect the date of death and the legal responsibilities of the executor. That distinction matters in Washington, where homedata.co.uk records a freehold sale of £558,000 in May 2024, well above the parish median of £485,000. A Red Book report explains why the figure is what it is, using comparable evidence rather than opinion alone.

Washington parish has a housing profile that looks different from many larger Sussex settlements. The 2019 Storrington, Sullington & Washington Neighbourhood Plan references 2011 Census data showing 45% of households in Washington Parish are detached houses or bungalows, while 21% are semi-detached houses or bungalows. That mix points to a market where family homes, older cottages, and individual plots can all influence the probate figure. For executors, the key point is simple: a detached house on the parish edge will not be valued in the same way as a compact semi-detached property.
homedata.co.uk records also show a 12-month price change of +7.3% for a property in Washington, West Sussex. The broader Horsham area reached an average house price of £441,000 in March 2026, up 1.4% on March 2025, with semi-detached homes rising by 3.0% and flats falling by 2.6% over the same period. Those movements show why local market knowledge matters, especially where the village stock is small and one sale can shift the tone of the data. Washington itself has 1,867 residents from the 2011 Census and 747 households referenced in the neighbourhood plan, so each sale carries more weight than it would in a larger town.
The local built form also shapes value. Washington lies at the foot of the South Downs escarpment, and the parish border reaches Chanctonbury Ring on chalk ground. Carstone, flint, Sussex brick, and weatherboard all appear in the area, so construction type often affects repair costs and buyer appetite. We factor those details into the valuation because a probate figure has to reflect the property as it really is, not as a generic Sussex home on paper.
Executors usually need a probate valuation when the estate includes a property that may affect inheritance tax or when the family has to apply for a Grant of Probate. The return must usually be submitted within 12 months of death, and that deadline arrives quickly once the paperwork starts moving. A formal valuation helps the executor show HMRC the open market value at the date of death, which is the right basis for the tax calculation. In Washington, even a single house can make the estate more complex because median values sit at £485,000.
Joint ownership, more than one property, or a house passing to children can all trigger extra attention. The nil-rate band is £325,000 per person, frozen until April 2028, and the residence nil-rate band is £175,000 per person where the home passes to direct descendants. That means a family home in Washington can fall into different tax outcomes depending on who inherits it and how the ownership was arranged. Our valuers set out the figure clearly so executors can move ahead with the IHT forms and the estate administration.

The process starts when the executor asks us to act. We confirm the address in Washington, Horsham, West Sussex, agree the scope, and explain what evidence we need before the inspection.
Our valuer visits the property, records layout, condition, land, outbuildings, and any features that affect value. A cottage in carstone near the parish centre needs a different approach from a later detached house on a larger plot.
Comparable sales are analysed alongside the local market picture. homedata.co.uk records of the £485,000 median and the £558,000 freehold sale in May 2024 help anchor the valuation to real transactions.
We prepare the Red Book report with a date-of-death market value, the rationale behind it, and the evidence used. That written trail matters if HMRC queries the figure later.
The finished report is sent to the executor, ready to support the IHT return and estate records. If the estate contains multiple properties or unusual construction, we explain any assumptions in plain language.
Where the executor needs other property help, we can point them towards conveyancing, a sale, or further survey support. That can be useful if the probate property is later sold or transferred to a beneficiary.
Inheritance tax is often the reason probate valuations become urgent. The nil-rate band is £325,000 per person, and the residence nil-rate band adds £175,000 per person where the home passes to direct descendants, with transferable allowances available for married couples and civil partners. Washington’s median house price of £485,000 means a single home can sit well above the basic nil-rate band, even before savings, personal possessions, or a second property are counted. For that reason, the probate figure has to be accurate at the outset.
HMRC can challenge a valuation within 4 years, so a quick estimate is a poor defence if questions arise later. Executors also have 12 months from death to submit the IHT return, which makes the paperwork timetable tight. A Red Book valuation gives the estate a clear record of how the figure was reached, and that record is especially useful where a sale later completes above or below the probate value. If the home is transferred to a beneficiary and sold afterwards, the gap between probate value and sale price may also affect capital gains tax.
Washington’s market history shows why this matters in practical terms. homedata.co.uk records the parish median at £485,000, a freehold sale at £558,000 in May 2024, and a 12-month rise of +7.3%, while the wider Horsham area reached £441,000 in March 2026. Those figures sit close together, yet they point to different outcomes for different homes, especially where a detached property, a semi-detached house, or a stone-built cottage has its own land and condition history. A valuation that names those details clearly is easier for executors to use and easier for HMRC to understand.
Probate sales in Washington tend to be shaped by the village stock rather than by large new-build estates. There are no large-scale active developments definitively inside the parish, and Vineyard Close near the village, which included 16 detached and semi-detached cottages plus apartments by Cayuga Homes, is now sold out. Smaller planning applications have included two 2-bed semi-detached dwellings, three 2-bed terraced dwellings, four 3-bed semi-detached dwellings, and a detached two-storey dwelling, which shows how limited the pipeline is. That scarcity can affect how quickly an executor finds a buyer once the property is ready for sale.
The wider Horsham area has more movement in its pipeline, with a planned development of 244 homes at the former Novartis site in Horsham town centre due to start in Summer 2026, but that is not Washington. For probate sales, the local fabric still matters more than distant schemes, especially where a house stands near the foot of the South Downs escarpment or uses carstone and flint. Washington Sandpit, Hamper's Lane, Sullington, is in Flood Zone 1, showing low fluvial and tidal flood probability, while West Sussex County Council still treats surface water and groundwater as long-term matters to watch. If the executor later sells above the probate value, the sale price also becomes important for any capital gains tax calculation.

HMRC needs a reliable market value for the property at the date of death, not a rough selling estimate. Our RICS-qualified valuers prepare a Red Book report so the executor has a figure that supports the inheritance tax return and the estate accounts. In Washington, where the median house price is £485,000, a formal valuation can make a material difference to the estate position.
Our probate valuations start from £250. The final fee depends on the property type, access, and any features that need extra inspection, such as outbuildings or unusual construction in carstone, brick, or weatherboard. We confirm the fee before booking so the executor knows the cost from the start.
Yes, provided it is carried out to RICS Valuation - Global Standards and backed by proper evidence. That is why we issue a Red Book report rather than a basic market opinion. HMRC can review probate figures later, so a clear written trail is important if the estate is queried within the 4-year challenge window.
The inspection itself is usually arranged quickly, then the report is prepared after the evidence has been reviewed. Our typical turnaround is 5-7 working days, although properties with more complex construction or multiple titles can take a little longer. We keep the process moving so the executor can meet the 12-month IHT deadline.
The current nil-rate band is £325,000 per person, frozen until April 2028. The residence nil-rate band is £175,000 per person where the home passes to direct descendants, and transferable allowances can help married couples and civil partners. In a parish like Washington, where a single house can be worth £485,000, the property value often plays a central part in the estate calculation.
An estate agent's appraisal is useful for selling, but it is not the same as a probate valuation. HMRC wants the open market value at the date of death, set out in a format that follows RICS standards. Our reports are written for that purpose, which makes them suitable for probate and inheritance tax work.
Joint ownership changes how the property is treated in the estate, so the probate figure still needs to be clear even if the ownership share is not. We look at the title position, who inherits the property, and whether the home passes to direct descendants. That allows the executor to complete the paperwork with the right value on record.
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Legal support for probate sales and transfers
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Our probate valuations in Washington start from £250, and the fee reflects the level of detail needed for a legally defensible report. A simple house in the parish can be straightforward, but a home with land, a non-standard build, or several outbuildings needs more time and evidence. We always set out the scope before we begin, so the executor understands what is included and why the figure is being prepared in that way. The aim is a clean Red Book report that can be used with confidence.
Each valuation includes an inspection, analysis of comparable evidence, and a written report in RICS format. We set the value as at the date of death, not the date of inspection, because probate work follows that legal point in time. Where the home has a distinct local character, such as carstone walls, Sussex brick, or weatherboarding near the South Downs escarpment, that detail is reflected in the evidence. Washington’s small scale means the right comparable sales matter, and homedata.co.uk records of £485,000, £558,000, and +7.3% help build that picture.
Turnaround is typically 5-7 working days from inspection, subject to access and complexity. If the estate is being prepared for HMRC and the Grant of Probate at the same time, speed matters, but accuracy still comes first. Executors can also ask us about later sale support, because a probate report is often the first step before conveyancing and marketing begin. That keeps the estate moving without losing the paper trail that HMRC expects.
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RICS Red Book valuations accepted by HMRC
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