Rightmove HPI Style Guide — transferable lessons for a monthly report

Built from 58 monthly Rightmove House Price Index reports (mid-2021 to mid-2026), analysed by analyze.py. Every claim below is grounded in the counts and example sentences in out/evidence_pack.md. You write a different kind of report, so each point ends with how to borrow the technique rather than the property wording.

1. How these reports read

They speak to two audiences at once: a journalist who needs a headline number, and the ordinary mover who wants to know what to do. The voice is measured and authoritative, never breathless, even when the news is a record high. The numbers run long and dense: the average sentence is 31.9 words, Flesch Reading Ease 49.8, roughly a college reading level. That density is a deliberate choice for a press audience, not a target to copy. If your readers are less specialist, write shorter. The one habit worth taking wholesale: they pair almost every fact with what it means for the reader, so a statistic never sits on the page alone.

2. Favourite words & phrases

The distinctive-vocabulary table shows the writers reach for the same families of word month after month. Four families do most of the work.

Temperature and weather, used for the market. frenetic (17 uses), frenzied (19), buoyant (11), subdued (23), lull (17), softening (8), headwinds (20), plus the headline "market cooling from boil to simmer." The market becomes weather you can feel. Borrow it: give your subject a physical temperature. Instead of "activity was lower," try "the quarter cooled" or "a lull in sign-ups." One concrete metaphor beats three abstract adjectives.

Motion and direction. momentum, upturn (8), uptick (8), slowdown (22), rises (101), downwards (17). Every number is going somewhere. Borrow it: frame each figure as a direction, not a static value. "Up for the third month" tells a story; "the figure was 42" does not.

Pressure and scarcity. glut (8), pent(-up) (9), outstripping (9), stretched, squeezing. These dramatise supply and demand. Borrow it: when two forces push against each other in your data, name the squeeze.

Calm-down qualifiers aimed at one group. realistic, competitively (33), sensibly, realistically, over-optimistic, carried away. These cluster in the "caution to sellers" tally (104 hits across 38 reports) and always coach one side of the market. Borrow it: decide who in your audience needs a reality check this month and address them directly.

Watch for cliché. "This time last year" appears in 42 of 58 reports, "coming to market" is everywhere, and the spokesperson's title ("Director of Property Science") is repeated verbatim 58 times. Repetition builds a recognisable house voice, but the freshest lines in the corpus are the specific images (boil to simmer, gold dust, race for space), not the stock connectors. Keep the skeleton phrases, vary the images.

3. Tone & framing

Lead with the number, then translate it. Reports open on the headline figure ("rises by 2.8% (+£9,893) to £368,031") and immediately say what it means ("the largest ever January increase"). Principle: state the figure, then earn it with context in the next clause.

Soften hard messages with a pivot. The softening-pivot words (however, although, while, but, despite) appear 764 times across all 58 reports, the single most common pattern in the corpus. The structure is reliable: good news, pivot, the catch. "A recovery in prices is a good sign, though sellers mustn't get carried away." Principle: when you deliver an upbeat number that hides a risk, use one pivot to introduce the caveat. One pivot per point, not three.

Hedge every prediction. Hedges appear 455 times across 57 reports: "appears to," "we expect," "it's too early to see the full impact," "remains to be seen." They forecast confidently, then leave themselves room. Principle: attach a hedge to any forward-looking claim so a wrong call reads as caution, not error.

Ration superlatives, then commit. Superlatives appear 415 times across 55 reports ("largest ever," "record," "busiest"), but they are spent on genuine firsts and quickly qualified. Principle: a superlative is a loaded word; use it only when the data earns it, and follow it with the number that proves it.

Reassure and caution in the same breath. Reassurance words (encouraging, steady, resilient, confidence) run to 341 hits while the seller-caution cluster runs to 104. The two are usually balanced inside a paragraph. Principle: end a worried section on a steadying note, and end an exuberant one on a caution.

4. Structure & flow

The report skeleton (visible in the representative reports): 1. Headline that fuses a number with a driver. 2. Three to four summary bullets, the top one carrying the key figure. 3. "What's happening with prices / activity / mortgages" prose sections. 4. A long spokesperson quote after the data. 5. Rotating local-expert quotes to close.

Borrow it: fix a repeatable section order so readers know where to look, and lead each section with its single most important number.

The headline formula. 42 of 58 headlines carry a driver connector (as, despite, but, though, after); 22 use a superlative; 20 use a seasonal hook. The dominant shape is [claim] + [connector] + [reason]: - "Largest ever January price jump, as market sentiment rebounds after the Budget" - "Price growth slows as stamp duty deadline looms, but activity remains robust" - "Subdued August as market looks for autumn pick-up" - "Affordability drives a north-south price growth divide, but market remains confident"

Principle: your headline should state what changed and why in one line. A bare number ("Sign-ups up 4%") is weaker than a number with a cause.

Rhythm. Body sentences are long (31.9 words average) and layered with clauses. The quotes run even longer. The contrast that works is structural: short, punchy headlines and bullets against dense explanatory paragraphs. Borrow the contrast, not the length: keep your openings tight and let the explanation breathe, but cut your paragraph sentences shorter than theirs if your readers aren't specialists.

5. Quotes & attribution

The corpus holds 196 quotes averaging 129 words each, and a clear casting pattern: - One lead spokesperson per era. Tim Bannister carries 69 quotes across the early years; Colleen Babcock takes over with 29 later. A single recognisable name builds authority over time. - A specialist for the technical angle. Matt Smith appears 8 times, only on mortgage rates. - Rotating local voices for colour and credibility. Estate agents from named towns supply the on-the-ground detail and the vivid lines (gold dust, race for space, 18 buyers chasing every listing).

The quotes do different work from the body: the prose states the facts, the quotes add opinion, prediction and human texture, which lets the report stay neutral while still having a view.

Principle: if you can quote anyone, cast the same way. Keep one consistent lead voice for authority, bring in a specialist for the technical point, and use a rotating outside voice for the specifics and the memorable phrase. Let quotes carry the opinion your own prose should not.

6. How the voice moved over five years

The corpus spans a full property cycle, and the writing tracked it. Three shifts stand out, each with a lesson.

Spend big words when the news is big, ration them otherwise. Superlatives ran about 16 per report through the 2021-22 boom and fell to 9-10 from 2023 once the market cooled. The writers let the vocabulary follow reality instead of forcing excitement onto a flat month. Borrow it: match your emphasis to the size of the story. A quiet month written in boom language reads as spin.

Hedge harder when the future is murkier. Hedging climbed across the rate- uncertainty years and peaked in 2025. When the writers could see less, they claimed less. Borrow it: let your confidence rise and fall with your actual certainty, and say so on the page.

Protect the voice through a handover. Tim Bannister carried 69 quotes from May 2021 to August 2024; Colleen Babcock took over in September 2024. The person changed, the register held: quote length stayed close (152 vs 130 words), the hedge rate barely moved. Borrow it: a house voice is a spec, not a person. When the writer changes, keep the cadence and the habits so readers feel continuity.

Refresh the vocabulary as the subject moves on. "Race for space," "frenetic" and "headwinds" faded as "affordability," "mortgage" and "sellers" rose. The skeleton phrases stayed; the topical words turned over with the market. Borrow it: retire the words that belonged to last year's story rather than carrying them out of habit.

7. Monthly checklist

Run these against your draft before sending:

1. Does the headline pair what changed with why (a connector like as/despite/but)?
2. Does the lead sentence give the single most important number?
3. Is every figure translated into what it means for the reader?
4. Have I followed each forward-looking claim with a hedge?
5. Does each upbeat number that hides a risk get one pivot and a caveat?
6. Have I used a superlative only where the data earns it, with the proof next to it?
7. Did I decide who needs a reality check this month and address them?
8. Is there at least one concrete image instead of a pile of adjectives?
9. Are my sections in the same order as last month?
10. If I have quotes: one consistent lead voice, plus an outside voice for colour?
11. Did I balance a worried section with a steadying close (and vice versa)?
12. Did I refresh the images even though I kept the skeleton phrases?
13. Does my emphasis match the size of this month's story, not last month's?
14. Have I retired words that belonged to a story the market has moved past?