21636 Allyssa Ln · Porter Heights, TX 77365

$275,000

6 bd · 2.0 ba · 1,632 sqft · SingleFamily public records · 69 Days on market

Built 2014 0.54 ac lot

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Why this score? — see what drove the D grade

The composite is a weighted blend of 9 inputs, each scored 0–100. Each bar is that input's sub-score; the figure is the points it added to the 100-point composite (weight × sub-score).

• Cash flow +13.6/30.0
• ARV discount +7.5/15.0
• DSCR +4.1/10.0
• 1% rule +3.5/10.0
• Livability +3.2/5.0
• Rent growth +2.9/5.0
• Schools +2.8/10.0
• Condition / age +2.5/5.0
• Appreciation +0.0/10.0

Listing remarks

Wonderfully upgraded home just minutes from Texas State Highway 99 (Grand Parkway)! This spacious property features a two-story main home with bedrooms both upstairs and downstairs, offering flexibility for families, guests, or a home office setup. A separate guest house provides additional living space—perfect for extended family, visitors, or rental potential. Inside, you'll find multiple bedrooms and generous living areas designed for comfort and functionality. Step outside to enjoy a large covered patio ideal for entertaining, BBQs, and relaxing evenings. The gated lot offers privacy and space, complete with two storage sheds for tools, hobbies, or extra storage. Situated on a qui

Key facts

• Gated lot
• Quiet street
• Large covered patio

Tags

• SEPARATE GUEST HOUSE
• LARGE COVERED PATIO
• GATED LOT
• TWO STORAGE SHEDS
• QUIET STREET

What this means for you Summary

Snapshot

• This is a 6-bed/2.0-bath single-family listed at $275k.

Deal economics

• At list price, monthly cash flow is $16 ($194/yr) — positive.
• The deal already cash-flows at list — no discount required.
• To meet the 1% rule (rent ≥ 1% of price), the offer needs to be $232k (15.5% below list).
• Recommended offer: $232k (15.5% below list) — sets the bar for 1% rule.
• Cap rate 6.4% vs local median 2.5% in Porter Heights — top-decile yield for the area; either an underpriced asset or a hidden risk that comps aren't pricing in. Stress-test before assuming the spread holds.

Location & tenants

• Location reads 65/100 on livability (#663 in TX) — a middle-class / working-renter tenant base. Strengths: crime A+, employment A+, cost of living A+; Watch: amenities F, commute F, health & safety F.
• New Caney ISD (suburban): math 31% / reading 32% proficiency, ranked #570 of 826 in TX (top 69%) — families likely to look elsewhere, expect single-tenant / working-renter base with shorter leases.
• Zoned schools: Sorters Mill El (math 28% / reading 27%, grade F, #2,768 of 4,322 statewide, top 65%, 679 students, 77% FRL); White Oak Middle (math 38% / reading 32%, grade F, #842 of 1,662 statewide, top 51%, 834 students, 75% FRL); New Caney H S (math 24% / reading 31%, grade F, #1,183 of 1,632 statewide, top 73%, 2,428 students, 78% FRL) — zoned schools average 76% FRL vs 57% district-wide (20 pts higher); higher-poverty schools than district average — tighter screening recommended.
• Market conditions: Rents rising (+1.6%/yr); 955 active listings in the ZIP; solid renter incomes; 13,259 units permitted in Montgomery County in 2024 (1,402 in 5+ unit buildings).

Forward outlook

• Local home prices are declining (-3.0%/yr); year-one equity from $2k of loan paydown is wiped out by about $8k of value loss. Plan a longer hold.
• Montgomery County population projected at +65% by 2050 — long-run rental-demand tailwind backs the buy-and-hold thesis.

Negotiation context

• It's been on market 69 days — a 6% lower offer ($258k) is reasonable based on typical stale-listing flexibility.

Risks & watch-outs

• Climate carrying-cost: major flood risk; severe wind risk, 99% chance of damaging wind over 30y; moderate wildfire risk; extreme-heat days projected 7→24/yr by 2055 (HVAC capex compounding) — expect insurance premiums to compound above CPI over the hold.

Recommended offer $232,390 (15.5% below list)

Questions for the listing agent

1. It's been on market 69 days. Have you received any prior offers? Is the seller open to a 15% concession, seller financing, or rate buy-down credit?
2. Why hasn't it sold? Are there any deal-killer items the seller is aware of (foundation, flood, title, zoning, code violations)?
3. Is there a deadline driving the sale (1031 exchange, divorce, estate, relocation)? That informs how much negotiation room exists.
4. Schools are F-rated, which usually means shorter tenancies and higher turnover. Who's the typical renter profile here, and what's been the actual vacancy rate?
5. The area grade is low — what's the realistic commute time and amenity access for the typical tenant pool here? Any planned neighborhood developments (good or bad) we should know about?
6. What's the average days-on-market for RENTAL listings here right now (not sales)? A rising rental-DOM trend means longer vacancies and softer asking-rent achievability than the comps imply.
7. What's the recent tenant-quality profile in this submarket — average credit score on applications, eviction rate, late-payment / NSF rate, and stable-employment percentage? A property-management company in the area should have these aggregated.
8. How much new for-sale + rental construction is in the pipeline within 1–3 miles? Heavy new supply typically softens prices + rents 12–24 months out; constrained supply supports both.

Investment metrics

• 1% rule: 0.85% ✗
• Cap rate: 6.36%
• Cash-on-cash: 0.25%
• DSCR: 1.01
• GRM: 9.9

CMA / ARV

No comps found within radius.

Projected returns pro-forma

-3.0% appreciation · 1.65% rent growth · sell at horizon

5-year hold

• IRR: -17.4%
• Equity multiple: 0.39×
• Total profit: $-46,660
• Equity at exit: $41,003

10-year hold

• IRR: -12.0%
• Equity multiple: 0.33×
• Total profit: $-51,800
• Equity at exit: $23,777

Cash invested: $77,000 (down + closing). Projections, not guarantees.

Landlord ↔ Tenant lean methodology

• Overall (STATE): 87 Strongly Landlord-Friendly
• State Texas: 87 Strongly Landlord-Friendly · R+5
• County: — inherits STATE
• City: — inherits STATE

3-day notice; statewide preemption; one of the fastest eviction climates; Travis County (Austin) slightly slower.

Methodology + full state rankings →

ZIP-level market 77365

• Home prices YoY: -33.0%
• Rents YoY: 1.6%
• Active inventory: 955
• Price-to-rent: 9.9×

Monthly cashflow live

• Estimated rent: $2,324 medium
• Mortgage (P&I): −$1,442
• Tax from tax record: −$263 /mo · $3,156/yr
• Insurance: −$115
• HOA: −$0
• Vacancy / Maint / Mgmt: −$488
• Net cashflow: $16

Break-even live

Break-even rent $2,303

Max offer price $275,000

Occupancy floor 94%

Sensitivity live

Price	-10% $172	-5% $94	+0% $16	+5% $-62	+10% $-139
Rent	-10% $-167	-5% $-76	+0% $16	+5% $108	+10% $200
Rate	-1.0pp $155	-0.5pp $86	base $16	+0.5pp $-55	+1.0pp $-128

UW: 25.0% down · 7.5% · 30yr · 1.5% tax · 5.0% vac · 8.0% maint · 8.0% mgmt

Financing live

Cash to close

• Down payment: $68,750
• Closing costs: $8,250
• Reserves months: —
• Total cash needed: —

Listing history 5 events

1. 2026-05-01
   status Pending
2. 2026-04-25
   status Pending
3. 2026-04-25
   historical
4. 2026-03-24
   listed $275,000 Active
5. 2013-10-22
   soldstatus

ⓘ Source: listings_history table (triggers on properties + properties_extension) + one-shot backfill from property_details.listing_events for pre-trigger history.

Tax reassessment forecast TX · Resets to sale price

• Current annual tax: $3,156 · $263/mo
• Projected year-2 tax: $5,032 · $419/mo
• Expected delta: +$1,877/yr (+$156/mo · 59.5%)

ⓘ Screening estimate from a state-policy table — verify with the county assessor before closing.

Climate risk First Street

• 🌊 Flood 6/10 Major FEMA zone X (unshaded) · 71% chance over 30 yrs
• 🔥 Wildfire 5/10 Major
• 🌡 Heat 9/10 Extreme 7 d/yr ≥110°F today · 24 d/yr by 30 yrs out
• 💨 Wind 8/10 Severe 99% chance of damaging wind over 30 yrs
• 🫁 Air quality 3/10 Moderate 3 unhealthy d/yr today · 3 by 30 yrs out

Taxation est. · year 1

• Rental income: $27,887
• − Mortgage interest: −$15,404
• − Property taxes: −$3,156
• − Insurance: −$1,375
• − Repairs & maintenance: −$2,231
• − Management: −$2,231
• − Depreciation: −$8,000
• Taxable loss: −$4,510
• Est. tax savings @ 24.0%: +$1,082
• After-tax cash flow: $1,277/yr

For passive investors: Depreciation is non-cash, so a rental often shows a tax loss while cash-flowing — sheltering income. Rental losses are passive: they offset passive income freely, and up to $25,000/yr can offset ordinary (W-2) income if you actively participate and your MAGI is under $100k (phasing out to $0 by $150k); unused losses carry forward. On sale, claimed depreciation is recaptured at up to 25%, and gains may owe capital-gains tax (a 1031 exchange can defer both). Figures are a year-1 estimate at your 24.0% rate — not tax advice; consult a CPA.

Schools (NCES district)

• District: New Caney ISD
• NCES district ID: 4832400
• Math proficiency: 31% ▼ -16.00%
• Reading proficiency: 32% ▼ -6.00%
• Median HH income: $55,380
• Composite: 27.97/100
• National rank: #6857
• State rank: #570 of 826 in TX

Livability — Porter Heights

• Score: 65/100
• State rank: #663
• US rank: #12479

Category grades

Amenities F Commute F Cost of living A+ Crime A+ Employment A+ Housing A+ Health & safety F User ratings B-

Schools grade is shown separately in the Schools card above.

Census & demographics

• County: Montgomery County · 663,713 people
• City population: 3,226,434
• Metro: Houston-The Woodlands-Sugar Land, TX
• Population (ZIP): 46,418
• Household income: $95,702
• Rent vs Own: 22.9% rent · 77.1% own
• Severe rent burden: 1016.0

Population outlook (Montgomery County) Hauer SSP2

• Today (2025): 713,896 people
• By 2030: 805,263 · +12.8%
• By 2040: 992,708 · +39.1%
• By 2050: 1,179,590 · +65.2%
• By 2075: 1,628,084 · +128.1%
• By 2100: 1,937,880 · +171.5%

Race, ethnicity, and origin ACS 2023

• Neighborhood character: Diverse neighborhood (Simpson 0.59)
• Race & ethnicity: Hispanic / Latino 46% White 44% Two or more races 15% Black 5% Asian 3%
• Hispanic origin (detail): Mexican 39% Puerto Rican 1%
• Common ancestry: Lithuanian 4% Slovak 2% Romanian 2%
• Foreign-born: 18% · Canada
• Languages at home: 59% English-only · Spanish 36% Other Indo-European 2% Russian/Polish/Slavic 1%

Political lean MEDSL · Montgomery

• 2024 margin: Solid R (+45.5) · D 26.8% · R 72.3%
• 2008→2024 swing: +7.2pp toward D · 2008: -52.7pp · 2024: -45.5pp
• All cycles: 2024: R+45.5 2020: R+43.8 2016: R+51.4 2012: R+60.7 2008: R+52.7

Not yet ingested

• Civics: —

Market trends

• HPI YoY: ▼ -111.46%
• Current HPI: 225.9903
• Rent YoY: ▲ 1.65%
• Metro: Houston-The Woodlands-Sugar Land, TX
• State GDP YoY: ▲ 3.95%
• F500 in state: 110

Industry mix (Fortune 500 HQ in TX)

Industry	F500 HQs	Revenue
▸Energy	16	$1,198B
▸Technology	5	$198B
▸Engineering / Construction	4	$72B
▸Energy Services	3	$60B
▸Utilities	3	$41B
▸Healthcare	2	$330B

Price history

5 events — show timeline

• 2026-05-01 Pending — HARMLS
• 2026-04-25 Pending — HARMLS
• 2026-04-25 Listing Removed — HARMLS
• 2026-03-24 Listed $275,000 HARMLS
• 2013-10-22 Sold (Public Records) — Public Records

Property tax history

+23.5%/yr

Latest (2025): $3,156 · +11.9% YoY. Source: county tax records.