Blackfen Road, Sidcup

House prices, sold prices and local information for DA15 9NY, DA15 8SW, DA15 8SN.

Average price (last 12 months)
£399,285
13 sales
Average price (since 2016)
£386,748
129 sales
Price range
£145k – £790k
lowest to highest sale
Last sale
20 Mar 2026
DA15 9NY

At a glance

House prices£399k average15% below the Sidcup average CrimeAbout averageLower crime than about 60% of neighbourhoods in England DeprivationLess deprived than mostDecile 8 of 10 (10 = least deprived) Flood riskIn a flood warning areaCheck the GOV.UK long-term risk Nearest station22 min walkWelling station Schools3 rated Good or betterWithin 1.5 miles, 1 Outstanding Ultrafast broadband94% of homesNational average 80%

129 property sales on Blackfen Road, Sidcup have been recorded by HM Land Registry since 2016. In the last 12 months 13 homes sold here for an average of £399,285. Most sales here are semi-detached homes, which have sold for an average of £432,146. Average sale prices rose from £363,929 in 2016 to £481,740 in 2026 (+32%), though averages on a single street can swing with the mix of homes sold. That is 15% below the Sidcup average of £472,117 over the same period. 25 homes here have sold more than once since 2016; 20 of them sold for more the second time.

House prices on Blackfen Road compared

Blackfen Road£399,285
DA15 postcode area£503,488
Sidcup£472,117
England & Wales£356,718

Average sale price over the last 12 months. See all DA15 house prices.

Average sale price by year

2016: £363,929 (14 sales)2016£364k2017: £300,050 (10 sales)2017£300k2018: £393,375 (12 sales)2018£393k2019: £419,461 (13 sales)2019£419k2020: £359,818 (11 sales)2020£360k2021: £375,292 (12 sales)2021£375k2022: £411,118 (17 sales)2022£411k2023: £366,330 (10 sales)2023£366k2024: £507,000 (5 sales)2024£507k2025: £378,200 (20 sales)2025£378k2026: £481,740 (5 sales)2026£482k

Prices by property type

TypeSalesAverage priceLast sold
Semi-detached43£432,1466 Nov 2025
Terraced38£366,75520 Mar 2026
Flat31£247,5809 Feb 2026
Detached17£570,38220 Mar 2026

Sold prices on Blackfen Road

AddressDatePriceTypeTenure
374, Blackfen Road DA15 9NY 20 Mar 2026£339,700 TerracedFreehold
437, Blackfen Road DA15 9NP 20 Mar 2026£764,000 DetachedFreehold
59, Blackfen Road DA15 8QB 19 Mar 2026£785,000 DetachedFreehold
104, Blackfen Road DA15 8SW 9 Feb 2026£290,000 FlatLeasehold
6, Orchard Court, Blackfen Road DA15 8PX 6 Feb 2026£230,000 FlatLeasehold
3, Martel Court, 28, Blackfen Road DA15 8SN 18 Dec 2025£300,000 FlatLeasehold
242A, Blackfen Road DA15 8PW 17 Dec 2025£280,000 FlatLeasehold
350, Blackfen Road DA15 9NY 1 Dec 2025£400,000 TerracedFreehold
370, Blackfen Road DA15 9NY 28 Nov 2025£340,000 TerracedFreehold
5, Martel Court, 28, Blackfen Road DA15 8SN 28 Nov 2025£320,000 FlatLeasehold
4, Martel Court, 28, Blackfen Road DA15 8SN 24 Nov 2025£300,000 FlatLeasehold
2, Martel Court, 28, Blackfen Road DA15 8SN 21 Nov 2025£423,000 FlatLeasehold
224, Blackfen Road DA15 8PT 7 Nov 2025£254,750 OtherFreehold
135, Blackfen Road DA15 8PZ 6 Nov 2025£405,000 Semi-detachedFreehold
342, Blackfen Road DA15 9NY 31 Oct 2025£354,000 TerracedFreehold
Flat 6, 254 - 256, Blackfen Road DA15 8PW 18 Sep 2025£405,000 FlatLeasehold
380, Blackfen Road DA15 9NZ 22 Aug 2025£365,000 Semi-detachedFreehold
51, Blackfen Road DA15 8QB 4 Aug 2025£495,000 DetachedFreehold
296, Blackfen Road DA15 9NA 18 Jul 2025£365,000 TerracedFreehold
405, Blackfen Road DA15 9NN 2 Jul 2025£455,000 TerracedFreehold
234, Blackfen Road DA15 8PW 30 Jun 2025£275,000 OtherFreehold
15A, Blackfen Road DA15 8QD 16 May 2025£410,000 OtherFreehold
109, Blackfen Road DA15 8PZ 9 May 2025£470,000 DetachedFreehold
Flat 6, 423, Blackfen Road DA15 9NN 25 Apr 2025£230,000 FlatLeasehold
225, Blackfen Road DA15 8PR 3 Apr 2025£315,000 TerracedFreehold
203, Blackfen Road DA15 8PR 25 Mar 2025£490,000 Semi-detachedFreehold
395A, Blackfen Road DA15 9NJ 20 Mar 2025£475,000 TerracedFreehold
239A, Blackfen Road DA15 8PR 28 Feb 2025£225,000 OtherFreehold
179, Blackfen Road DA15 8PY 10 Feb 2025£470,000 Semi-detachedFreehold
4, Orchard Court, Blackfen Road DA15 8PX 6 Feb 2025£242,000 FlatLeasehold
354, Blackfen Road DA15 9NY 30 Jan 2025£355,000 TerracedFreehold
405B, Blackfen Road DA15 9NN 30 Jan 2025£470,000 TerracedFreehold
164A, Blackfen Road DA15 8PT 29 Jan 2025£265,000 TerracedFreehold
92A, Blackfen Road DA15 8SW 9 Jan 2025£600,000 DetachedFreehold
338, Blackfen Road DA15 9NY 13 Dec 2024£375,000 TerracedFreehold
449, Blackfen Road DA15 9NP 9 Dec 2024£406,500 Semi-detachedFreehold
254, Blackfen Road DA15 8PW 18 Oct 2024£150,000 OtherLeasehold
6, Blackfen Road DA15 8SN 19 Sep 2024£645,000 DetachedFreehold
19 - 21, Blackfen Road DA15 8QD 8 Aug 2024£1,100,000 OtherFreehold
21A, Blackfen Road DA15 8QD 8 Aug 2024£1,100,000 OtherFreehold
21A, Blackfen Road DA15 8QD 8 Aug 2024£1,100,000 OtherLeasehold
5, Orchard Court, Blackfen Road DA15 8PX 9 Jul 2024£220,000 FlatLeasehold
209, Blackfen Road DA15 8PR 25 Jun 2024£505,000 DetachedFreehold
484, Blackfen Road DA15 9NT 26 Apr 2024£436,000 OtherFreehold
36, Blackfen Road DA15 8SN 22 Mar 2024£790,000 Semi-detachedFreehold
10, Blackfen Road DA15 8SN 23 Feb 2024£764,400 DetachedFreehold
336, Blackfen Road DA15 9NY 7 Nov 2023£500,000 TerracedFreehold
334, Blackfen Road DA15 9NY 19 Sep 2023£405,000 TerracedFreehold
181, Blackfen Road DA15 8PY 5 Sep 2023£490,000 Semi-detachedFreehold
164, Blackfen Road DA15 8PT 25 Aug 2023£271,300 Semi-detachedFreehold
1234

Sale prices are as recorded by HM Land Registry. Some sales (for example repossessions and company purchases) are listed but left out of the averages.

Sale history: homes sold more than once

AddressSalesChange
374, Blackfen Road £370,000 (May 2019) → £339,700 (Mar 2026) -8%
over 7 yrs
437, Blackfen Road £499,999 (Nov 2017) → £600,000 (May 2019) → £764,000 (Mar 2026) +53%
over 8 yrs
242A, Blackfen Road £245,000 (Mar 2020) → £280,000 (Dec 2025) +14%
over 6 yrs
350, Blackfen Road £362,000 (Sep 2021) → £400,000 (Dec 2025) +10%
over 4 yrs
4, Orchard Court, Blackfen Road £239,995 (Jun 2023) → £242,000 (Feb 2025) +1%
over 2 yrs
92A, Blackfen Road £600,000 (May 2022) → £600,000 (Jan 2025) +0%
over 3 yrs
21A, Blackfen Road £180,000 (Sep 2020) → £1,100,000 (Aug 2024) +511%
over 4 yrs
336, Blackfen Road £330,000 (Jul 2018) → £500,000 (Nov 2023) +52%
over 5 yrs
12, Blackfen Road £627,500 (Jul 2020) → £985,000 (May 2023) +57%
over 3 yrs
131, Blackfen Road £360,000 (Jul 2019) → £470,000 (Mar 2023) +31%
over 4 yrs
162C, Blackfen Road £275,000 (Jan 2023) → £260,000 (Mar 2023) -5%
over under a year
30, Blackfen Road £260,000 (Mar 2017) → £340,000 (Nov 2022) +31%
over 6 yrs
92B, Blackfen Road £585,000 (Jul 2019) → £600,000 (Oct 2022) +3%
over 3 yrs
30A, Blackfen Road £281,000 (Jan 2020) → £350,000 (Oct 2022) +25%
over 3 yrs
Flat 1, 423, Blackfen Road £230,500 (Jan 2017) → £222,500 (Sep 2022) -3%
over 6 yrs
3, Orchard Court, Blackfen Road £232,000 (Aug 2019) → £242,500 (Mar 2021) → £230,000 (Sep 2022) -1%
over 3 yrs
Flat 3, 423, Blackfen Road £180,000 (Mar 2021) → £225,000 (Apr 2022) +25%
over 1 yr
90, Blackfen Road £340,000 (Nov 2017) → £395,000 (Aug 2021) +16%
over 4 yrs
31, Blackfen Road £435,000 (Jul 2016) → £485,000 (Oct 2020) +11%
over 4 yrs
372, Blackfen Road £253,000 (Nov 2019) → £275,000 (Jan 2020) → £332,000 (Oct 2020) +31%
over under a year
169, Blackfen Road £440,000 (Oct 2018) → £475,000 (Jun 2020) +8%
over 2 yrs
172, Blackfen Road £393,000 (Sep 2016) → £444,000 (Oct 2019) +13%
over 3 yrs
70, Blackfen Road £655,000 (Jun 2017) → £750,000 (Feb 2019) +15%
over 2 yrs
379, Blackfen Road £360,000 (Aug 2017) → £640,000 (Oct 2018) +78%
over 1 yr
294, Blackfen Road £265,000 (Oct 2016) → £260,000 (Jul 2017) → £285,000 (Feb 2018) +8%
over 1 yr

Buying on Blackfen Road?

Stamp duty calculator

Mortgage calculator

Crime and flood risk near Blackfen Road

Crime

203 crimes were reported within about a mile of Blackfen Road in August 2026.

Crime level compared with the rest of England (10 = lowest crime):

12345678910

Lower crime than about 60% of neighbourhoods in England, based on recorded crime rates (English Indices of Deprivation 2025).

Violence & sexual offences56
Anti-social behaviour50
Shoplifting33
Vehicle crime23
Other theft14
Public order7

Source: data.police.uk. Locations are approximate and cover the surrounding area, not just this street.

Flood risk

Blackfen Road is in or near 5 Environment Agency flood areas:

  • River Shuttle at Blackfen, Sidcup, Old Bexley and Crayford Flood warning area
  • River Cray in St Marys Cray, Sidcup, Bexley and Crayford Flood warning area
  • Shuttle and Cray Flood alert area
  • Groundwater flooding in South East London Flood alert area
  • River Darent from Westerham to Dartford Flood alert area

Flood warning areas cover places at risk from rivers and the sea. Surface water risk isn't included. Check the long-term flood risk for a postcode on GOV.UK.

Schools near Blackfen Road

SchoolTypeAgesOfstedDistance
Blackfen School for Girls 1,324 pupils Secondary 11–18 Report 0.2 mi
Sherwood Park Primary School 282 pupils Primary 3–11 Report 0.3 mi
Bexley Grammar School 1,504 pupils Secondary 11–18 Outstanding Report 0.5 mi
Danson Primary School 592 pupils Primary 4–11 Report 0.5 mi
Days Lane Primary School 653 pupils Primary 3–11 Good Report 0.6 mi
Marlborough School 92 pupils Community special school 11–19 Report 0.6 mi
Chatsworth Infant School 210 pupils Primary 3–7 Good Report 0.6 mi
Our Lady of the Rosary Catholic Primary School 397 pupils Primary Roman Catholic 3–11 Report 0.7 mi

Source: Department for Education (Get Information about Schools) and Ofsted. Grades are from each school's last graded inspection; newer inspections use report cards without a single overall grade, so check the full report. Distances are straight-line. Check catchment areas with the local council.

Getting around and local GPs

Train stations

  • Welling station 1.1 mi · 22 min walk
  • Sidcup station 1.1 mi · 22 min walk
  • Albany Park station 1.2 mi · 25 min walk

Nearest bus stops

  • Blackfen Road / Ramillies Road (Stop E) 1 min walk
  • Blackfen Road / Ramillies Road (Stop D) 1 min walk
  • Clayworth Close (->N) 1 min walk
  • Clayworth Close (->S) 1 min walk

GP surgeries

  • Ingleton Avenue Surgery
    84 Ingleton Avenue, Welling · 0.3 mi
  • Welling Medical Practice
    2 Danson Crescent, Welling · 0.8 mi
  • The Westwood Surgery
    24 Westwood Lane, Welling · 1.0 mi
  • Woodlands Surgery
    146 Halfway Street, Sidcup · 1.1 mi

Sources: Department for Transport (NaPTAN) and NHS England practice data. Walking times are estimates from straight-line distance.

Area profile

Deprivation

12345678910

This neighbourhood is in decile 8 of 10 on the English Indices of Deprivation 2025, where 1 is the most deprived 10% of areas in England and 10 the least deprived.

Income: decile 7 of 10 · Crime: decile 7 of 10.

Homes

HereEng & Wales
Owned81.0%62.5%
Private rented15.0%20.3%
Social rented4.0%17.1%
Households627

People

HereEng & Wales
Under 1518.1%17.4%
Aged 15–6461.4%64.1%
Aged 65+20.5%18.6%
Residents1,519

Broadband

HereUK
Superfast (30Mbit+)96%95%
Ultrafast (300Mbit+)94%80%
Gigabit-capable92%80%

Share of homes on this street's postcodes that can get each speed. UK figure is the average across all postcodes. Source: Ofcom Connected Nations.

Neighbourhood figures cover the surrounding Lower Layer Super Output Area (about 1,500 residents). Sources: Census 2021 (ONS) and the English Indices of Deprivation 2025.

Nearby streets in DA15

See all streets in Sidcup All streets in DA15