12-bedroom house · UB9 6HL
For saleListed 684 days
Opportunity summary
See Archie’s verdict, returns by strategy and what to check before viewing.
About
Black Jacks Mill has a spacious welcoming entrance hall, a substantial function hall (circa 1,200 sqft) with views of the gardens, four reception rooms one with a guest cloakroom and a well equipped kitchen together with a utility room.
To the first floor there is an impressive landing, five bedrooms, all with en-suites, together with a utility and an additional shower room.
There are two further bedrooms and a bathroom on the second floor.
The newly refurbished Mill Cottage has a spacious entrance hall, three reception rooms, a dining room, a kitchen, a sauna, five ground floor bedrooms, three shower rooms and WC, with an additional bedroom and en-suite bathroom on the first floor with access to eaves storage.
This unique and flexible estate has a tranquil setting with extensive grounds and gardens of approximately 6 acres, with bridges over the river running through it and surrounded by countryside and lakes, together with ample parking for owners and visitors.
Boasting a large function room, impressive bedroom suites and stunning grounds. Viewing is highly recommended to appreciate all this superb property has to offer.
Harefield has the benefit of being adjacent to The Grand Union Canal and surrounding lakes and farmland bordering Buckinghamshire. There is a range of local schools and a thriving village centre.
Public transport links to London are available from Moor Park, Northwood, Rickmansworth and West Ruislip.
Tenure: Freehold Local Authority: London Borough of Hillingdon Council Tax Band: Black Jacks Mill: E Mill Cottage: F Energy Efficiency Rating: Black Jacks Mill: G Mill Cottage: D nb: Some of the photos are not current, they are historic
Value & comps
No previous sales on record.
Returns
Set an offer; the calculator follows it.
Short-let restrictions apply
We're still gathering serviced-accommodation data for this area.
Archie refurb estimate: a Pro feature
0.0% below asking
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Deal
Properties like this can earn 2–3x BTL yields when converted to HMO, with retrofit costs around £10k/room. Sign in to see the full tier, yield projection, and cost breakdown.
Commercial properties like this can earn 30-50% higher yields when converted to residential under Class MA / Q / P / PA, with prior approval costing ~GBP 96/unit. Sign in to see the recommended route, yield uplift, and cost breakdown.
BRRR-suited properties can recycle 80-100% of investor capital on refi, leaving a high-yielding rental with most of the money out. Sign in to see the refurb cost stack, ARV projection, and refinance maths.
Detached + large garden = sub-division play. Pro tier unlocks the tier badge, plot size, uplift estimate, and regional land benchmark.
Short-lease flats trade at deep discount, but extending under the 1993 Act often costs far less than the discount. Pro tier unlocks the tier badge, premium breakdown, long-lease ARV and arbitrage maths.
See projected short-stay revenue vs a vanilla BTL for this property.
See real sub-let margins (HMO room rates & SA nightly rates) vs the landlord rent.
Area
Agent & docs
FAQ
About Black Jacks Mill, Park Lane, Uxbridge
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