Official property recordsNear Westwood Family Park
856 Jurong West St 81: recorded history
Explore the sales, rental records and building information available from our connected sources.
Property Upside score
Eight dimensions of the evidence for this property.
37% evidence coverage · 3 of 7 applicable dimensions scored
The outer ring is 100. Gaps mean a dimension is unscored.
Strongest supported dimension: URA growth catalysts (70). Lowest supported dimension: Rental appeal (42).
Value20% weight · Unscored—
Insufficient current, source-qualified evidence.
How it is assessed. 50 + 250 × (comparable central price − assessed price) / comparable central price, bounded 0–100. At least 5 compatible sales and a latest comparable within 12 months. Historical reference and private asking-price scenarios are labelled separately.
Resale demand15% weight · Unscored—
Insufficient current, source-qualified evidence.
How it is assessed. 100 × months with resale activity / 12 completed calendar months, minimum 5 single-unit resales in the selected property segment and full source coverage. Monthly activity consistency is a proxy, not turnover or time-to-sell; no dwelling-count denominator is available.
Rental appeal10% weight42/100
Recorded rentals in 5 of 12 months; 6 matching flat-type records. Rental activity proxy; owner-declared rents, no unit-matched yield.
How it is assessed. 100 × months with recorded rentals / 12 completed calendar months, minimum 5 contracts and full source coverage. Uses the same flat type. Activity continuity, not occupancy, investment return or project-size-normalised demand.
- Recorded HDB rentals: 6 records; 2026-01 to 2026-07 (2026-07) Source
Connectivity15% weight60/100
Pioneer MRT is approximately 1,066 m away in a straight line.
How it is assessed. Nearest operational MRT straight-line distance: 100 at ≤400 m, 80 at ≤800 m, 60 at ≤1,200 m, 40 at ≤2,000 m, 20 at ≤3,000 m. Beyond covered evidence is unscored; distances are not walking times.
- Nearest sourced MRT: Pioneer MRT (2026-09-06) Source
Everyday living10% weight · Unscored—
Insufficient current, source-qualified evidence.
How it is assessed. Average proximity across schools, food/markets, parks and shopping: 100 at ≤500 m, 75 at ≤1,000 m, 50 at ≤2,000 m, 25 at ≤3,000 m. All four categories require sourced coverage; school proximity does not establish admission eligibility.
Tenure resilience15% weight · Unscored—
Insufficient current, source-qualified evidence.
How it is assessed. Lease score = 100 × remaining years / 99, bounded 0–100; an explicitly recorded freehold title scores 100. Deduct elapsed time from recorded remaining lease, or use term and commencement year. Median across selected recent records; year-only starts are approximate.
URA growth catalysts10% weight70/100
Jurong Region Line interchanges: 2028 for these interchanges (LTA target). Matched using Boon Lay MRT as a reference.
How it is assessed. Highest matched catalyst score, without stacking overlapping announcements. Under-construction interchanges: 90 for a 2028 target, 85 for 2030, 80 for 2032; long-term district plans: 60 for Jurong Lake District, 55 for Greater Southern Waterfront. Subtract 10 beyond 500 m or 20 beyond 1 km. These are editorial proximity/stage points, not predicted returns. Reviewed catalogue covers selected announcements, not every Singapore plan. Reviews expire after 90 days; zoning alone earns no catalyst points.
- Master Plan zoning at the mapped reference point: Residential; gross plot ratio 2.8. (2026-09-06) Source
- Redevelopment evidence boundary: MP2025 zoning is indicative. A legal site boundary and existing gross floor area are required before calculating redevelopment headroom. Check subsequent amendments in URA SPACE. (2025-12-01) Source
- Jurong Region Line interchanges: Under construction; 2028 for these interchanges (LTA target). Approx. 1,346 m straight-line to Boon Lay MRT reference. The new line will connect the existing rail network to more of Jurong's employment and education destinations. The elevated line may change the local environment. No unit-specific noise impact is inferred; distance is to the existing station reference. (2026-09-06) Source
En bloc potential5% weight · Not applicable—
Private strata collective-sale scoring does not apply to this property class.
How it is assessed. A score requires verified strata ownership, site boundaries, existing lawful GFA, redevelopment entitlement and costs. Building age or a zoning polygon alone does not establish collective-sale feasibility or probability.
An editorial research indicator, not a price forecast or government rating. Overall requires at least 70% of applicable weight, including value and resale evidence. Compare only within the same property class and coverage profile. As of 2026-09-07 · Method upside-1.0.
4 ROOM · strata area · Resale · 1 unit per transaction · Tenure not classified. All charts use this comparison segment; price per sq ft uses strata area.
Fair value & asking price
A 1,150 sq ft property in 856 Jurong West St 81
2023-09 · 1119 sq ft · S$428 / sq ft
An individual completed sale, not an estimate of your home’s value.
A recent price range needs more evidence
2 matching sales in the past 5 years; at least five are needed for a comparable range. The comparison history contains 71 sales (2000-03–2023-09), including 71 in this size band. The full property records include every size and sale category. View all property records.
Comparable recorded prices over time
Quarterly recorded sale prices per sq ft of strata area for the selected size band · This property
Completed sales, not a forecast. Plotted periods have at least five matching sales. Boundary periods may be incomplete; changes in the units sold can move the median.
View quarterly figures
| Period | Sales | Median / sq ft | Middle 50% |
|---|---|---|---|
| Q1 2000 | 3 | Insufficient sales | — |
| Q2 2000 | 9 | S$223 | S$220–226 |
| Q3 2000 | 4 | Insufficient sales | — |
| Q4 2000 | 5 | S$196 | S$192–206 |
| Q1 2001 | 2 | Insufficient sales | — |
| Q2 2001 | 1 | Insufficient sales | — |
| Q3 2001 | 3 | Insufficient sales | — |
| Q4 2001 | 2 | Insufficient sales | — |
| Q1 2002 | 1 | Insufficient sales | — |
| Q2 2002 | 1 | Insufficient sales | — |
| Q3 2002 | 3 | Insufficient sales | — |
| Q4 2002 | 1 | Insufficient sales | — |
| Q1 2003 | 2 | Insufficient sales | — |
| Q2 2003 | 0 | Insufficient sales | — |
| Q3 2003 | 0 | Insufficient sales | — |
| Q4 2003 | 1 | Insufficient sales | — |
| Q1 2004 | 1 | Insufficient sales | — |
| Q2 2004 | 0 | Insufficient sales | — |
| Q3 2004 | 0 | Insufficient sales | — |
| Q4 2004 | 1 | Insufficient sales | — |
| Q1 2005 | 1 | Insufficient sales | — |
| Q2 2005 | 0 | Insufficient sales | — |
| Q3 2005 | 1 | Insufficient sales | — |
| Q4 2005 | 1 | Insufficient sales | — |
| Q1 2006 | 0 | Insufficient sales | — |
| Q2 2006 | 0 | Insufficient sales | — |
| Q3 2006 | 1 | Insufficient sales | — |
| Q4 2006 | 0 | Insufficient sales | — |
| Q1 2007 | 3 | Insufficient sales | — |
| Q2 2007 | 1 | Insufficient sales | — |
| Q3 2007 | 0 | Insufficient sales | — |
| Q4 2007 | 0 | Insufficient sales | — |
| Q1 2008 | 0 | Insufficient sales | — |
| Q2 2008 | 1 | Insufficient sales | — |
| Q3 2008 | 0 | Insufficient sales | — |
| Q4 2008 | 0 | Insufficient sales | — |
| Q1 2009 | 0 | Insufficient sales | — |
| Q2 2009 | 2 | Insufficient sales | — |
| Q3 2009 | 0 | Insufficient sales | — |
| Q4 2009 | 0 | Insufficient sales | — |
| Q1 2010 | 0 | Insufficient sales | — |
| Q2 2010 | 0 | Insufficient sales | — |
| Q3 2010 | 0 | Insufficient sales | — |
| Q4 2010 | 2 | Insufficient sales | — |
| Q1 2011 | 1 | Insufficient sales | — |
| Q2 2011 | 0 | Insufficient sales | — |
| Q3 2011 | 1 | Insufficient sales | — |
| Q4 2011 | 0 | Insufficient sales | — |
| Q1 2012 | 0 | Insufficient sales | — |
| Q2 2012 | 1 | Insufficient sales | — |
| Q3 2012 | 0 | Insufficient sales | — |
| Q4 2012 | 1 | Insufficient sales | — |
| Q1 2013 | 0 | Insufficient sales | — |
| Q2 2013 | 0 | Insufficient sales | — |
| Q3 2013 | 1 | Insufficient sales | — |
| Q4 2013 | 0 | Insufficient sales | — |
| Q1 2014 | 0 | Insufficient sales | — |
| Q2 2014 | 0 | Insufficient sales | — |
| Q3 2014 | 0 | Insufficient sales | — |
| Q4 2014 | 1 | Insufficient sales | — |
| Q1 2015 | 0 | Insufficient sales | — |
| Q2 2015 | 0 | Insufficient sales | — |
| Q3 2015 | 0 | Insufficient sales | — |
| Q4 2015 | 2 | Insufficient sales | — |
| Q1 2016 | 0 | Insufficient sales | — |
| Q2 2016 | 1 | Insufficient sales | — |
| Q3 2016 | 0 | Insufficient sales | — |
| Q4 2016 | 0 | Insufficient sales | — |
| Q1 2017 | 0 | Insufficient sales | — |
| Q2 2017 | 1 | Insufficient sales | — |
| Q3 2017 | 0 | Insufficient sales | — |
| Q4 2017 | 0 | Insufficient sales | — |
| Q1 2018 | 0 | Insufficient sales | — |
| Q2 2018 | 0 | Insufficient sales | — |
| Q3 2018 | 0 | Insufficient sales | — |
| Q4 2018 | 0 | Insufficient sales | — |
| Q1 2019 | 0 | Insufficient sales | — |
| Q2 2019 | 1 | Insufficient sales | — |
| Q3 2019 | 0 | Insufficient sales | — |
| Q4 2019 | 1 | Insufficient sales | — |
| Q1 2020 | 0 | Insufficient sales | — |
| Q2 2020 | 1 | Insufficient sales | — |
| Q3 2020 | 0 | Insufficient sales | — |
| Q4 2020 | 1 | Insufficient sales | — |
| Q1 2021 | 2 | Insufficient sales | — |
| Q2 2021 | 0 | Insufficient sales | — |
| Q3 2021 | 0 | Insufficient sales | — |
| Q4 2021 | 0 | Insufficient sales | — |
| Q1 2022 | 0 | Insufficient sales | — |
| Q2 2022 | 0 | Insufficient sales | — |
| Q3 2022 | 0 | Insufficient sales | — |
| Q4 2022 | 0 | Insufficient sales | — |
| Q1 2023 | 0 | Insufficient sales | — |
| Q2 2023 | 1 | Insufficient sales | — |
| Q3 2023 | 1 | Insufficient sales | — |
Price versus other developments
JURONG WEST · HDB · Tenure not classified
Median recorded PSF over 5 years, using the same size band. Peers need five sales and are ordered by number of recorded sales. Location, lease age, floor and condition are not adjusted.
Local market context
Against other jurong west · hdb transactions
2674 matching sales in other developments
Same size band and tenure not classified, over 5 years. 856 Jurong West St 81 needs five recent matching sales before we can place its median within this market.
Price versus the local market
The distribution of jurong west · hdb recorded sale prices for similar-sized properties
Bar height shows the number of other transactions in each price band. Same jurong west · hdb, property type, area basis, recorded tenure, sale category and unit count, 5 years of sales and ±15% size band. This development is excluded from the market sample.
View price bands
| Price / sq ft | Recorded sales |
|---|---|
| S$297–353 | 29 |
| S$353–410 | 395 |
| S$410–466 | 779 |
| S$466–522 | 614 |
| S$522–579 | 445 |
| S$579–635 | 269 |
| S$635–691 | 106 |
| S$691–747 | 31 |
| S$747–804 | 5 |
| S$804–860 | 1 |
What traded in this development
Recorded strata areas in sales over the past 12 months
No matching sales were recorded in the past 12 months.
The sales behind the comparison
978–1,323 sq ft · Past 5 years
| Month | Size | Floor band | Recorded price | Price / sq ft |
|---|---|---|---|---|
| 2023-09 | 1119 sq ft | 7–9 | S$478,888 | S$428 |
| 2023-04 | 1152 sq ft | 13–15 | S$480,000 | S$417 |
Up to eight recent matching sales shown; the recent comparison contains 2 matching sales in this window (This property). The history chart also includes older matching sales. View all published sales across all sizes and categories. Source dates have month precision.
How to read this analysis
The comparable range contains the middle 50% of observed prices; it is not a forecast or a confidence interval. Floor, condition, facing and remaining lease can materially change a home’s value. A price below a benchmark is a reason to investigate, not proof of a bargain.
Contains information from HDB resale transactions, accessed from data.gov.sg under the Singapore Open Data Licence. Last checked 6 Sep 2026, 09:45 SGT. Source documentation · Licence / terms · Full methodology
Charts & price evidence
Understand what these records can tell you.
All property records
856 Jurong West St 81 · Every recorded date, size and property type
All retained source versions, including earlier values and repeated captures. These are source records and must not be counted as separate sales. View published history.
Recorded activity by year · all 106 records
Showing 101–106 of 106 records. Every page is available below; the download contains the complete dataset for this property.
| Month | Property | Sale category | Type | Area | Area basis | Units | Floor band | Tenure | Recorded price | Price / sq ft | Full source record |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000-04 | 856 Jurong West St 81 | Resale | 5 ROOM | 1,389 sq ft | strata | 1 | 1–3 | 99-year leasehold | S$321,000 | S$231 | All fields & provenanceHDB resale archive: 2000-01 to 2012-02 · Source terms Captured 6 Sep 2026, 13:06 SGT {
"id": 909111,
"snapshot_id": "4e42ee49-081a-4153-abe5-98873a4f9b79",
"row_number": 8499,
"place_id": "3ca4ee43-b326-42f6-8283-d01e8f842be1",
"month": "2000-04",
"market": "hdb_resale",
"sale_type": "resale",
"property_type": "HDB",
"flat_type": "5 ROOM",
"flat_model": "Improved",
"price": "321000.00",
"area_sqm": "129.0000",
"area_type": "strata",
"units": 1,
"floor_low": 1,
"floor_high": 3,
"tenure": "99-year leasehold",
"remaining_lease_months": null,
"raw_identity": {
"town": "JURONG WEST",
"block": "856",
"month": "2000-04",
"flat_type": "5 ROOM",
"flat_model": "Improved",
"street_name": "JURONG WEST ST 81",
"resale_price": "321000",
"storey_range": "01 TO 03",
"floor_area_sqm": "129",
"lease_commence_date": "1996"
},
"flags": [
"approval_month",
"lease_unknown"
],
"date_basis": "approval month",
"source": "hdb_resale_2000_2012",
"source_url": "https://data.gov.sg/datasets/d_43f493c6c50d54243cc1eab0df142d6a/view",
"licence_url": "https://data.gov.sg/open-data-licence",
"captured_at": "2026-09-06 05:06:33.631985+00:00",
"last_confirmed_at": "2026-09-06 05:06:33.631486+00:00",
"snapshot_checksum": "5f6a72bd7b9120281863beb1fc4c89aa5f4923f00b0f6c52494c4347363f2c36"
} |
| 2000-04 | 856 Jurong West St 81 | Resale | 4 ROOM | 1,152 sq ft | strata | 1 | 10–12 | 99-year leasehold | S$257,000 | S$223 | All fields & provenanceHDB resale archive: 2000-01 to 2012-02 · Source terms Captured 6 Sep 2026, 13:06 SGT {
"id": 909062,
"snapshot_id": "4e42ee49-081a-4153-abe5-98873a4f9b79",
"row_number": 8450,
"place_id": "3ca4ee43-b326-42f6-8283-d01e8f842be1",
"month": "2000-04",
"market": "hdb_resale",
"sale_type": "resale",
"property_type": "HDB",
"flat_type": "4 ROOM",
"flat_model": "Model A",
"price": "257000.00",
"area_sqm": "107.0000",
"area_type": "strata",
"units": 1,
"floor_low": 10,
"floor_high": 12,
"tenure": "99-year leasehold",
"remaining_lease_months": null,
"raw_identity": {
"town": "JURONG WEST",
"block": "856",
"month": "2000-04",
"flat_type": "4 ROOM",
"flat_model": "Model A",
"street_name": "JURONG WEST ST 81",
"resale_price": "257000",
"storey_range": "10 TO 12",
"floor_area_sqm": "107",
"lease_commence_date": "1996"
},
"flags": [
"approval_month",
"lease_unknown"
],
"date_basis": "approval month",
"source": "hdb_resale_2000_2012",
"source_url": "https://data.gov.sg/datasets/d_43f493c6c50d54243cc1eab0df142d6a/view",
"licence_url": "https://data.gov.sg/open-data-licence",
"captured_at": "2026-09-06 05:06:33.631985+00:00",
"last_confirmed_at": "2026-09-06 05:06:33.631486+00:00",
"snapshot_checksum": "5f6a72bd7b9120281863beb1fc4c89aa5f4923f00b0f6c52494c4347363f2c36"
} |
| 2000-03 | 856 Jurong West St 81 | Resale | 5 ROOM | 1,313 sq ft | strata | 1 | 7–9 | 99-year leasehold | S$327,000 | S$249 | All fields & provenanceHDB resale archive: 2000-01 to 2012-02 · Source terms Captured 6 Sep 2026, 13:06 SGT {
"id": 906600,
"snapshot_id": "4e42ee49-081a-4153-abe5-98873a4f9b79",
"row_number": 5988,
"place_id": "3ca4ee43-b326-42f6-8283-d01e8f842be1",
"month": "2000-03",
"market": "hdb_resale",
"sale_type": "resale",
"property_type": "HDB",
"flat_type": "5 ROOM",
"flat_model": "Improved",
"price": "327000.00",
"area_sqm": "122.0000",
"area_type": "strata",
"units": 1,
"floor_low": 7,
"floor_high": 9,
"tenure": "99-year leasehold",
"remaining_lease_months": null,
"raw_identity": {
"town": "JURONG WEST",
"block": "856",
"month": "2000-03",
"flat_type": "5 ROOM",
"flat_model": "Improved",
"street_name": "JURONG WEST ST 81",
"resale_price": "327000",
"storey_range": "07 TO 09",
"floor_area_sqm": "122",
"lease_commence_date": "1996"
},
"flags": [
"approval_month",
"lease_unknown"
],
"date_basis": "approval month",
"source": "hdb_resale_2000_2012",
"source_url": "https://data.gov.sg/datasets/d_43f493c6c50d54243cc1eab0df142d6a/view",
"licence_url": "https://data.gov.sg/open-data-licence",
"captured_at": "2026-09-06 05:06:33.631985+00:00",
"last_confirmed_at": "2026-09-06 05:06:33.631486+00:00",
"snapshot_checksum": "5f6a72bd7b9120281863beb1fc4c89aa5f4923f00b0f6c52494c4347363f2c36"
} |
| 2000-03 | 856 Jurong West St 81 | Resale | 4 ROOM | 1,152 sq ft | strata | 1 | 13–15 | 99-year leasehold | S$233,000 | S$202 | All fields & provenanceHDB resale archive: 2000-01 to 2012-02 · Source terms Captured 6 Sep 2026, 13:06 SGT {
"id": 906568,
"snapshot_id": "4e42ee49-081a-4153-abe5-98873a4f9b79",
"row_number": 5956,
"place_id": "3ca4ee43-b326-42f6-8283-d01e8f842be1",
"month": "2000-03",
"market": "hdb_resale",
"sale_type": "resale",
"property_type": "HDB",
"flat_type": "4 ROOM",
"flat_model": "Model A",
"price": "233000.00",
"area_sqm": "107.0000",
"area_type": "strata",
"units": 1,
"floor_low": 13,
"floor_high": 15,
"tenure": "99-year leasehold",
"remaining_lease_months": null,
"raw_identity": {
"town": "JURONG WEST",
"block": "856",
"month": "2000-03",
"flat_type": "4 ROOM",
"flat_model": "Model A",
"street_name": "JURONG WEST ST 81",
"resale_price": "233000",
"storey_range": "13 TO 15",
"floor_area_sqm": "107",
"lease_commence_date": "1996"
},
"flags": [
"approval_month",
"lease_unknown"
],
"date_basis": "approval month",
"source": "hdb_resale_2000_2012",
"source_url": "https://data.gov.sg/datasets/d_43f493c6c50d54243cc1eab0df142d6a/view",
"licence_url": "https://data.gov.sg/open-data-licence",
"captured_at": "2026-09-06 05:06:33.631985+00:00",
"last_confirmed_at": "2026-09-06 05:06:33.631486+00:00",
"snapshot_checksum": "5f6a72bd7b9120281863beb1fc4c89aa5f4923f00b0f6c52494c4347363f2c36"
} |
| 2000-03 | 856 Jurong West St 81 | Resale | 4 ROOM | 1,163 sq ft | strata | 1 | 1–3 | 99-year leasehold | S$243,000 | S$209 | All fields & provenanceHDB resale archive: 2000-01 to 2012-02 · Source terms Captured 6 Sep 2026, 13:06 SGT {
"id": 906567,
"snapshot_id": "4e42ee49-081a-4153-abe5-98873a4f9b79",
"row_number": 5955,
"place_id": "3ca4ee43-b326-42f6-8283-d01e8f842be1",
"month": "2000-03",
"market": "hdb_resale",
"sale_type": "resale",
"property_type": "HDB",
"flat_type": "4 ROOM",
"flat_model": "Model A",
"price": "243000.00",
"area_sqm": "108.0000",
"area_type": "strata",
"units": 1,
"floor_low": 1,
"floor_high": 3,
"tenure": "99-year leasehold",
"remaining_lease_months": null,
"raw_identity": {
"town": "JURONG WEST",
"block": "856",
"month": "2000-03",
"flat_type": "4 ROOM",
"flat_model": "Model A",
"street_name": "JURONG WEST ST 81",
"resale_price": "243000",
"storey_range": "01 TO 03",
"floor_area_sqm": "108",
"lease_commence_date": "1996"
},
"flags": [
"approval_month",
"lease_unknown"
],
"date_basis": "approval month",
"source": "hdb_resale_2000_2012",
"source_url": "https://data.gov.sg/datasets/d_43f493c6c50d54243cc1eab0df142d6a/view",
"licence_url": "https://data.gov.sg/open-data-licence",
"captured_at": "2026-09-06 05:06:33.631985+00:00",
"last_confirmed_at": "2026-09-06 05:06:33.631486+00:00",
"snapshot_checksum": "5f6a72bd7b9120281863beb1fc4c89aa5f4923f00b0f6c52494c4347363f2c36"
} |
| 2000-03 | 856 Jurong West St 81 | Resale | 4 ROOM | 1,119 sq ft | strata | 1 | 10–12 | 99-year leasehold | S$250,000 | S$223 | All fields & provenanceHDB resale archive: 2000-01 to 2012-02 · Source terms Captured 6 Sep 2026, 13:06 SGT {
"id": 906566,
"snapshot_id": "4e42ee49-081a-4153-abe5-98873a4f9b79",
"row_number": 5954,
"place_id": "3ca4ee43-b326-42f6-8283-d01e8f842be1",
"month": "2000-03",
"market": "hdb_resale",
"sale_type": "resale",
"property_type": "HDB",
"flat_type": "4 ROOM",
"flat_model": "Model A",
"price": "250000.00",
"area_sqm": "104.0000",
"area_type": "strata",
"units": 1,
"floor_low": 10,
"floor_high": 12,
"tenure": "99-year leasehold",
"remaining_lease_months": null,
"raw_identity": {
"town": "JURONG WEST",
"block": "856",
"month": "2000-03",
"flat_type": "4 ROOM",
"flat_model": "Model A",
"street_name": "JURONG WEST ST 81",
"resale_price": "250000",
"storey_range": "10 TO 12",
"floor_area_sqm": "104",
"lease_commence_date": "1996"
},
"flags": [
"approval_month",
"lease_unknown"
],
"date_basis": "approval month",
"source": "hdb_resale_2000_2012",
"source_url": "https://data.gov.sg/datasets/d_43f493c6c50d54243cc1eab0df142d6a/view",
"licence_url": "https://data.gov.sg/open-data-licence",
"captured_at": "2026-09-06 05:06:33.631985+00:00",
"last_confirmed_at": "2026-09-06 05:06:33.631486+00:00",
"snapshot_checksum": "5f6a72bd7b9120281863beb1fc4c89aa5f4923f00b0f6c52494c4347363f2c36"
} |
Official historical records are supplied by HDB/data.gov.sg and URA. Dates retain source precision. Price per square foot uses each record’s stated area basis; land area, strata area and multi-unit sales are labelled and may not be directly comparable. Original fields, quality flags and source provenance remain available on every row.